Thunder Scientific 2900 Manual 

22 March 2019 1 Thunder Scientific Corporation Model 2900 System Manual

22 March 2019 2 1 TABLE OF CONTENTS 2 Getting Started 8 2.1 About ........................................................................................................................... 8 2.2 Notice .......................................................................................................................... 9 2.3 Safety Information ....................................................................................................... 9 2.3.1 Live Power Source .......................................................................................... 9 2.3.2 Electro Static Discharge .................................................................................. 9 2.3.3 Compressed Gas .............................................................................................. 9 2.3.4 Personal Protective Equipment ....................................................................... 9 2.3.5 Safety Symbols ............................................................................................... 9 2.4 Technical Support ...................................................................................................... 10 2.5 License Agreement .................................................................................................... 10 2.6 Warranty .................................................................................................................... 11 2.7 Copyright ................................................................................................................... 12 2.8 Trademarks ................................................................................................................ 12 2.9 Specifications ............................................................................................................ 13 2.10 Uncertainty ............................................................................................................... 14 2.11 Facility Requirements ................................................................................................ 15 2.11.1 Environment ................................................................................................ 15 2.11.2 Floor Space ................................................................................................. 15 2.11.3 Power .......................................................................................................... 15 2.11.4 Air Supply ................................................................................................... 15 2.11.5 Distilled Water Supply ................................................................................ 15 2.12 Installation ................................................................................................................. 16 2.12.1 Uncrating ..................................................................................................... 16 2.12.2 Positioning .................................................................................................. 16 2.12.3 Chamber Fluid ............................................................................................. 16 2.12.4 Reservoir Initial Filling Procedure .............................................................. 17 2.12.5 Setting Supply Pressure Regulator .............................................................. 17 2.13 Quick Start ................................................................................................................. 18 2.13.1 Power-Up .................................................................................................... 18 2.13.2 Loading Screen............................................................................................ 19 2.13.3 ControLog Screen ....................................................................................... 20 2.13.4 Control Parameters ...................................................................................... 22 2.13.5 Control Modes ............................................................................................. 25 2.13.6 Generating and Shutting down .................................................................... 26 2.13.7 Power-Off .................................................................................................... 27 2.13.8 Set Date and Time ....................................................................................... 28 2.13.9 Help ............................................................................................................. 30 3 Principle of Operation 31 3.1 Pre-Saturation (TPsat) ................................................................................................. 31 3.2 Expansion Valve (TExV) ............................................................................................ 31 3.3 Saturation Temperature (TS) ..................................................................................... 32 3.4 Chamber Temperature (TC) ....................................................................................... 32 3.5 Saturation Pressure (PS) ............................................................................................ 32 3.6 Chamber Pressure (PC) .............................................................................................. 32 3.7 Humidity Formulas .................................................................................................... 32

22 March 2019 3 4 ControLog Interface 33 4.1 Menu Bar ................................................................................................................... 34 4.1.1 File Menu Tab ............................................................................................... 34 4.1.2 Home Menu Tab ........................................................................................... 38 4.1.3 Units Menu Tab............................................................................................. 41 4.1.4 Operation Menu Tab ..................................................................................... 42 4.1.5 Profile Menu Tab .......................................................................................... 45 4.1.6 Utilities Menu Tab ........................................................................................ 47 4.1.7 Graph Menu Tab ........................................................................................... 50 4.1.8 Data Menu Tab .............................................................................................. 52 4.1.9 Device Settings Menu Tab ............................................................................ 55 4.1.10 Help ............................................................................................................. 57 4.2 Parameters Tab Group ............................................................................................... 58 4.2.1 Tiles ............................................................................................................... 61 4.2.2 2900 Parameter Tab ...................................................................................... 65 4.2.3 Device Parameter Tabs.................................................................................. 71 4.3 Data and Graph Tab Group ....................................................................................... 73 4.3.1 Data Tabs ...................................................................................................... 74 4.3.2 Graph Tabs .................................................................................................... 74 4.3.3 Profile Tab ..................................................................................................... 74 4.4 Information Tab Group .............................................................................................. 75 4.4.1 Status Log ..................................................................................................... 77 4.4.2 2900 Reported Errors .................................................................................... 77 4.4.3 System timing ............................................................................................... 77 4.4.4 2900 Interface Console ................................................................................. 77 4.4.5 Device Interface Console .............................................................................. 78 4.5 Status Bar .................................................................................................................. 79 4.5.1 Connection and Run Status ........................................................................... 79 4.5.2 Auto Profile Controls and Status ................................................................... 80 4.5.3 Current Point Time ........................................................................................ 81 4.5.4 Set Date and Time ......................................................................................... 81 5 Fluid Levels 83 5.1 Water Reservoir Level ............................................................................................... 83 5.1.1 Fill Water Reservoir ...................................................................................... 84 5.2 Liquid Level Sensors ................................................................................................. 85 5.2.1 Pre-Saturator Level ....................................................................................... 85 5.2.2 Flow Switch .................................................................................................. 86 6 Calibration 87 6.1 Temperature Calibration ............................................................................................ 87 6.1.1 Equipment Required ...................................................................................... 88 6.1.2 Calibration Procedure .................................................................................... 88 6.2 Pressure Transducer Calibration .............................................................................. 108 6.2.1 Equipment Required .................................................................................... 108 6.2.2 Calibration Procedure .................................................................................. 108 6.2.3 Supply Pressure ........................................................................................... 126 6.3 Mass Flow Meter Calibration .................................................................................. 127 6.3.1 Equipment Required .................................................................................... 127 6.3.2 Calibration Procedure .................................................................................. 127 6.4 Viewing and Editing Calibration Coefficients......................................................... 143

22 March 2019 4 7 Graphing 147 7.1 Creating a New Graph ............................................................................................. 148 7.1.1 Line Properties ............................................................................................ 150 7.1.2 Chart Properties ........................................................................................... 151 7.2 Customizing a Graph ............................................................................................... 152 7.2.1 Pan ............................................................................................................... 152 7.2.2 Zoom ........................................................................................................... 153 7.2.3 Zoom Graph’s X Axis ................................................................................. 154 7.2.4 Zoom Graph’s Y Axis ................................................................................. 155 7.2.5 Auto Scale ................................................................................................... 155 7.2.6 Scale ............................................................................................................ 155 7.2.7 Scale X Axis ................................................................................................ 155 7.2.8 Scale Y Axis ................................................................................................ 155 7.2.9 Graph Properties.......................................................................................... 156 7.3 Saving a Graph ........................................................................................................ 159 8 Data and Data Summary 161 8.1 Device Data Tabs .................................................................................................... 165 8.2 File Data Tabs ......................................................................................................... 166 8.3 Data Summary Tabs ................................................................................................ 169 8.3.1 Creating a Data Summary ........................................................................... 170 8.4 Recorded Data Points Tab ....................................................................................... 177 8.4.1 How to Record a Data Point ........................................................................ 178 9 Auto Profiling 183 9.1 Creating a New Profile ............................................................................................ 185 9.2 Saving a Profile ....................................................................................................... 197 9.3 Opening a Profile ..................................................................................................... 199 9.4 Running an Auto Profile .......................................................................................... 201 9.4.1 Understanding Profile Phases ...................................................................... 203 9.4.2 Manual Override of Profile ......................................................................... 206 10 Connections 209 10.1 Serial Connection .................................................................................................... 210 10.1.1 Serial Connection Example 1 .................................................................... 225 10.1.2 Serial Connection Example 2 .................................................................... 237 10.2 Analog Connection .................................................................................................. 254 10.2.1 Analog Connection Example .................................................................... 264 10.3 GPIB Connection .................................................................................................... 273 10.3.1 GPIB Connection Example ....................................................................... 289 10.4 Manual Connection ................................................................................................. 299 10.4.1 Manual Connection Example .................................................................... 303 10.5 Opening a Device Connection ................................................................................. 312 11 External Communication 313 11.1 Read Percent Relative Humidity ............................................................................. 314 11.1.1 Syntax ....................................................................................................... 314 11.1.2 Response ................................................................................................... 314 11.1.3 Example .................................................................................................... 314 11.2 Read Frost Point Temperature ................................................................................. 314 11.2.1 Syntax ....................................................................................................... 314 11.2.2 Response ................................................................................................... 314

22 March 2019 5 11.2.3 Example .................................................................................................... 314 11.3 Read Dew Point Temperature.................................................................................. 315 11.3.1 Syntax ....................................................................................................... 315 11.3.2 Response ................................................................................................... 315 11.3.3 Example .................................................................................................... 315 11.4 Read PPMv .............................................................................................................. 315 11.4.1 Syntax ....................................................................................................... 315 11.4.2 Response ................................................................................................... 315 11.4.3 Example .................................................................................................... 315 11.5 Read PPMw ............................................................................................................. 316 11.5.1 Syntax ....................................................................................................... 316 11.5.2 Response ................................................................................................... 316 11.5.3 Example .................................................................................................... 316 11.6 Read Saturation Pressure ......................................................................................... 316 11.6.1 Syntax ....................................................................................................... 316 11.6.2 Response ................................................................................................... 316 11.6.3 Example .................................................................................................... 316 11.7 Read Chamber Pressure ........................................................................................... 317 11.7.1 Syntax ....................................................................................................... 317 11.7.2 Response ................................................................................................... 317 11.7.3 Example .................................................................................................... 317 11.8 Read Saturation Temperature .................................................................................. 317 11.8.1 Syntax ....................................................................................................... 317 11.8.2 Response ................................................................................................... 317 11.8.3 Example .................................................................................................... 317 11.9 Read Chamber Temperature .................................................................................... 318 11.9.1 Syntax ....................................................................................................... 318 11.9.2 Response ................................................................................................... 318 11.9.3 Example .................................................................................................... 318 11.10 Read Mass Flow Rate .............................................................................................. 318 11.10.1 Syntax ..................................................................................................... 318 11.10.2 Response ................................................................................................. 318 11.10.3 Example .................................................................................................. 318 11.11 Read Water Reservoir Level.................................................................................... 319 11.11.1 Syntax ..................................................................................................... 319 11.11.2 Response ................................................................................................. 319 11.11.3 Example .................................................................................................. 319 11.12 Read Generator State ............................................................................................... 319 11.12.1 Syntax ..................................................................................................... 319 11.12.2 Response ................................................................................................. 319 11.12.3 Example .................................................................................................. 319 11.13 Read All ................................................................................................................... 320 11.13.1 Syntax ..................................................................................................... 320 11.13.2 Response ................................................................................................. 320 11.13.3 Example .................................................................................................. 320 12 Data Backup 321 13 System 322 13.1 Control System ........................................................................................................ 322 13.1.1 Control Computer...................................................................................... 322 13.1.2 HMI Computer .......................................................................................... 323 13.1.3 ControLog® Software ............................................................................... 323 13.1.4 HumiCalc with Uncertainty® Software ..................................................... 324 13.2 Electrical System ..................................................................................................... 324

22 March 2019 6 13.2.1 Solid State Relays ..................................................................................... 325 13.3 Pneumatic System ................................................................................................... 326 13.3.1 Pressure Measurement .............................................................................. 326 13.3.2 Mass Flow Rate Measurement .................................................................. 326 13.3.3 Pre-Saturator ............................................................................................. 327 13.3.4 Reservoir ................................................................................................... 327 13.3.5 Saturator .................................................................................................... 327 13.3.6 Flow Control Valve ................................................................................... 327 13.3.7 Expansion Valve ....................................................................................... 328 13.3.8 Chamber Pressure...................................................................................... 328 13.3.9 Test Chamber ............................................................................................ 328 13.4 Fluid System ............................................................................................................ 328 13.4.1 Liquid Level Measurement ....................................................................... 328 13.4.2 Fluid Flow Measurement .......................................................................... 328 13.4.3 Temperature Controlled Chamber Fluid ................................................... 329 13.4.4 Chamber Fluid Heating ............................................................................. 329 13.4.5 Chamber Fluid Refrigeration .................................................................... 329 13.4.6 Temperature Measurement ........................................................................ 329 13.4.7 Fluid Jacket Door Option .......................................................................... 329 14 Maintenance 330 14.1 Drain Pre-Saturator .................................................................................................. 330 14.2 Chamber Fluid ......................................................................................................... 330 14.3 Air Input Filters (Mobile Cart) ................................................................................ 330 14.4 Circulation Pump Motor .......................................................................................... 331 14.5 Pre-Saturator Liquid Level Checkout ...................................................................... 331 14.6 Reservoir Liquid Level Checkout ............................................................................ 331 14.7 Warning and Error Messages .................................................................................. 332 14.7.1 Saturation Temperature at Minimum Limit .............................................. 332 14.7.2 Saturation Temperature Over Range or at Maximum Limit ..................... 332 14.7.3 Pre-Saturation Temperature at Minimum Limit ........................................ 332 14.7.4 Pre-Saturation Temperature Over Range or at Maximum Limit ............... 332 14.7.5 Expansion Valve Temperature at Minimum Limit.................................... 332 14.7.6 Expansion Valve Temperature Over Range or at Maximum Limit........... 333 14.7.7 Chamber Temperature at Minimum Limit ................................................ 333 14.7.8 Chamber Temperature Over Range or at Maximum Limit ....................... 333 14.7.9 Cabinet Temperature Over Range or at Minimum/Maximum Limit ........ 333 14.7.10 Insufficient Supply Pressure to Generate ................................................ 333 14.7.11 Supply Pressure Over Range or at Maximum Limit ............................... 333 14.7.12 Saturation Pressure at Minimum Limit ................................................... 333 14.7.13 Saturation Pressure Over Range or at Maximum Limit .......................... 333 14.7.14 Saturation Pressure Transducer Not Responding .................................... 334 14.7.15 Chamber Pressure at Minimum Limit ..................................................... 334 14.7.16 Chamber Pressure Over Range or at Maximum Limit ............................ 334 14.7.17 Chamber Pressure Transducer Not Responding ...................................... 334 14.7.18 Mass Flow Rate at Minimum Limit ........................................................ 334 14.7.19 Mass Flow Rate Over Range or at Maximum Limit ............................... 334 14.7.20 Refrigeration Compressor Low Side Pressure at Minimum Limit .......... 334 14.7.21 Refrigeration Compressor Low Side Pressure Over Range or at Max .... 334 14.7.22 Refrigeration Compressor High Side Pressure at Minimum Limit ......... 335 14.7.23 Refrigeration Compressor High Side Pressure Over Range or at Max ... 335 14.7.24 Flow Valve Reported Error: .................................................................... 335 14.7.25 Flow Valve Failed to Find Home Position .............................................. 335 14.7.26 Flow Valve at Minimum Limit ............................................................... 335 14.7.27 Flow Valve at Maximum Limit ............................................................... 335

22 March 2019 7 14.7.28 Expansion Valve Reported Error: ........................................................... 335 14.7.29 Expansion Valve Failed to Find Home Position ..................................... 335 14.7.30 Expansion Valve at Minimum Limit - Check for air leaks ..................... 335 14.7.31 Expansion Valve at Maximum Limit - Reduce Mass Flow Rate ............ 335 14.7.32 Distilled Water Reservoir is Empty ......................................................... 336 14.7.33 Distilled Water Reservoir is Low ............................................................ 336 14.7.34 Unable to Fill Pre-Saturator .................................................................... 336 14.7.35 No Fluid Flow ......................................................................................... 336 14.7.36 No Saturation Fluid Heat......................................................................... 336 14.7.37 No Pre-Saturator Heat ............................................................................. 336 14.7.38 No Expansion Valve Heat ....................................................................... 336 14.7.39 System Failed to Vent Pressure on Shutdown ......................................... 336 14.7.40 Mass Flow Rate is being limited to achieve Humidity setpoint. ............. 337 14.7.41 Insufficient Supply Pressure to reach setpoint ........................................ 337 15 Drawings and Diagrams 338 15.1 18D29901-1 - Part List ............................................................................................ 339 15.2 18D29901-2 – 2900 Components ............................................................................ 340 15.3 18D29901-3 – 2900 Components (Back) ................................................................ 341 15.4 18D29901-4 – 2900 Components (Top) .................................................................. 342 15.5 18D29901-5 – Pneumatic Schematic....................................................................... 343 15.6 18D29901-6 – Fluid Schematic ............................................................................... 344 15.7 18D29901-7 – Refrigeration Schematic .................................................................. 345 15.8 18D29901-8 – Pneumatic Components ................................................................... 346 15.9 18D29901-9 – Refrigeration Components ............................................................... 347 15.10 18D29901-10 – Electrical Components................................................................... 348 15.11 18D29901-11 – Data Acq. Components .................................................................. 349 15.12 18D29908 – Chamber Fan Components.................................................................. 350 15.13 18D29909-1 – Chamber Fluid Filling Instructions .................................................. 351 15.14 18D29909-2 – Chamber Fluid Draining Instructions .............................................. 352 15.15 18D29910-1 – Cart / ACS Assembly ...................................................................... 353 15.16 18D29910-2 – Filter / Regulator Assembly ............................................................. 354 15.17 18D29910-3 – Cart Pneumatic System Schematic .................................................. 355 15.18 18S29911 – AC / DC Power Distribution ............................................................... 356 15.19 18S29912 – Temperature Probe Schematic ............................................................. 357 15.20 18S29913 – Pre Tran/Stepper Drive Schematic ...................................................... 358 15.21 18S29914 – Transducer Schematic ......................................................................... 359 15.22 18S29915 – Pump / Comp / Flow Schematic .......................................................... 360 15.23 18S29916 – Exp. valve / Fluid Heater Schematic ................................................... 361 15.24 18S29917 – Pre Saturator Heater Schematic ........................................................... 362 15.25 18S29918 – Solenoid Valve Control Schematic...................................................... 363 15.26 18S29919 – Fan Control Schematic ........................................................................ 364

22 March 2019 8 2 GETTING STARTED This section will provide the user with information about the Model 2900 humidity generator, where to obtain technical support, software license agreement, specifications, uncertainty, facility requirements and installation. Following sections will provide further details on how to use and operate the Model 2900 generator using the ControLog software. Note - All pressures are absolute unless noted otherwise. 2.1 ABOUT The Thunder Scientific Model 2900 Humidity Generator is capable of producing known humidity values using the fundamental, NIST proven, "two-pressure" principle. The Model 2900 uses this fundamental “two-pressure” principle to continuously supply a known relative humidity, dew point, frost point, parts per million, or other calculated value for instrument calibration and evaluation as well as precision environmental testing. The Model 2900 humidity generator encompasses a high-performance stand-alone Data Acquisition Computer that performs all functions required for humidity generation and control and a second dedicated Human Machine Interface (HMI) computer that runs ControLog. ControLog is a software application that fully automates the operation of the Model 2900 humidity generator and allows various device connections through a number of different interfaces. Data from the generator and connected device or devices is automatically retrieved and stored for viewing in either numerical or graphical format in real time or post process. Data can be transferred off the system via a USB drive for further viewing, post processing and printing. The ControLog software also provides the primary interface to the operator via the multi-point touch LCD and keyboard. Key features of the of the ControLog software are: • ControLog stores data into individual data sheets (tab). Each data sheet contains a spreadsheet type view that consists of a date/time stamp and the measured data items corresponding to that date/time stamp. Data sheets consist of three similar but different types: Device Data, File Data and Data Summary. Each type has the same spreadsheet type view and operation, but all three have different data sources. • Graphing is a powerful tool used to view previously recorded data or to monitor the current data in real-time. The graph works hand in hand with the data sheets. While the generator is in operation, data sheets store the most recent data points from the generator and or connected devices at the desired interval. A graph can be used to create a visual picture of this stored data. • The Auto Profiling feature is very similar to the Generate mode with the main exception that profiling relies on a predefined list of setpoints referred to as a profile. The user configurable profile is used as ControLog's road map during Auto Profile operation. It defines which setpoint values to go to, at what rate to go from one setpoint to another, and how long to stay at a specific setpoint before moving to the next setpoint. • ControLog supports a customizable interface that works with most devices. ControLog will allow the user to create a new device connection using the “Connection Wizard” or open previously saved connections. The wizard will open a separate dialog window containing various steps that will guide the user in defining the communication required to receive the desired data items from

22 March 2019 9 the device. The user can create as many (up to 60) or as few data items as they see fit for any one device. Each data item can be uniquely named and once connected will be recorded in its own data sheet. ControLog also allows the user to save these interfaces for future use. The “Connection Wizard” allows the user to step through the connection configuration. Using the “Next” and “Back” buttons the user is allowed to progress through the connection configuration steps. At any time, the user may cancel the new connection or opening of a connection by selecting the “Cancel” button. Once the last step has been completed the “Finish” button will be available to complete the new connection. 2.2 NOTICE The specifications listed and the information contained in this document is subject to change without notice. Screen shots shown in this document may differ slightly from the actual product and are given to show functionality of the examples, procedures and program. Thunder Scientific Corporation makes no warranties, either express or implied, regarding the examples, procedures and program, or the fitness of these examples, procedures or program for a particular purpose. The examples, procedures and program are made available solely on an "as is" basis and the entire risk as to their quality and performance rests with the user. Thunder Scientific Corporation shall not be liable for any incidental or consequential damages in connection with or arising out of the furnishing, use, or performance of the examples, procedures or program. 2.3 SAFETY INFORMATION Important safety guidelines need to be observed when operating this equipment. Precautions are highly advisable so that no personal injury will occur during the operation and maintenance of the system. Observation of local and national regulations must be adhered to regarding safety standards. 2.3.1 Live Power Source Warning! Make sure all power sources are turned off before making internal adjustments or replacing any components. Only authorized technicians should perform any maintenance or repairs to equipment. 2.3.2 Electro Static Discharge Caution! Electrostatic discharge (ESD) could possibly damage or destroy solid-stat parts when exposed to static electric discharges. Be aware because electrostatic discharges may not be seen, felt or heard at levels less than 4,000 volts. 2.3.3 Compressed Gas Compressed gas is used on this system and if not properly vented may create an environment where the state of foreign matter may be propelled. Proper safety precautions must be fallowed when applying any pressure to the system. Before applying any pressure to the system, ensure that all pneumatic connections are properly secured and tightened. Make sure all pressure settings are set to the proper specifications before operation, testing, calibration or maintenance is performed. 2.3.4 Personal Protective Equipment Safety glasses must be worn when preforming any maintenance, repairs or calibration when system panels have been removed. Gloves may be needed on some maintenance or repairs. 2.3.5 Safety Symbols Symbols used in this manual for safety and other disciplines can be found in table 1-1.

22 March 2019 10 Safety terminology used for identification of any safety conditions are as follows: Warning indicates a potential hazard may exist and the user should be extremely careful. Caution! identifies a condition or action that may cause damage to the system or the user. Symbol Description The equipment has this symbol displayed and indicates that the equipment meets the requirements of the European safety directives. This symbol is shown from the WEEE directive and indicates do not dispose of this product in any municipal waste area. This symbol means Caution should be observed or important information. This symbol indicates a potential shock hazard may exist. This symbol means Earth Ground. Table 1-1 2.4 TECHNICAL SUPPORT If the user requires assistance with any aspect of the 2900 Humidity Generating System or the ControLog application, technical support can be obtained by contacting Thunder Scientific Corporation by any of the following means: Web: www.ThunderScientific.com Email: [email protected] Tel : 1-505-265-8701 FAX : 1-505-266-6203 2.5 LICENSE AGREEMENT THIS IS A LEGAL AGREEMENT BETWEEN YOU, THE END USER, AND THUNDER SCIENTIFIC CORPORATION ("TSC"). THE ENCLOSED THUNDER SCIENTIFIC CORPORATION SOFTWARE PROGRAM (THE "SOFTWARE ") IS LICENSED BY THUNDER SCIENTIFIC CORPORATION TO THE ORIGINAL CUSTOMER AND ANY SUBSEQUENT TRANSFEREE OF THE PRODUCT FOR USE ONLY ON THE TERMS SET FORTH HERE. PLEASE READ THIS LICENSE AGREEMENT. IF YOU DO NOT AGREE TO THESE TERMS, RETURN THE FULL PRODUCT WITH PROOF OF PURCHASE WITHIN 30 DAYS FOR A FULL REFUND. • GRANT OF LICENSE. TSC grants to you the right to use one copy of the enclosed SOFTWARE on a single terminal connected to a single computer (i.e. single CPU) or to a network server. If you install the SOFTWARE on a network server, you must purchase a separate copy of the SOFTWARE for each computer terminal that will be used to operate the SOFTWARE. If the anticipated number of users of the SOFTWARE will exceed the number of applicable Licenses,

22 March 2019 11 then you must have a reasonable mechanism in place to ensure that the number of persons using the SOFTWARE concurrently does not exceed the number of Licenses. If the SOFTWARE is permanently installed on the hard disk or other storage device of a computer (other than a network server) and one person uses that computer more than 80% of the time, then that person may also use the SOFTWARE on a portable or home computer. • COPYRIGHT. The SOFTWARE is owned by TSC and is protected by United States copyright laws and international treaty provisions. You may either (a) make two copies of the SOFTWARE solely for backup or archival purposes provided that you reproduce all copyright and other proprietary notices that are on the original copy of the SOFTWARE provided to you, or (b) transfer the SOFTWARE to a single hard disk provided you keep the original solely for backup or archival purpose. You may not copy the written materials accompanying the SOFTWARE. • OTHER RESTRICTIONS. You may not rent or lease the SOFTWARE, but you may transfer the SOFTWARE and accompanying written materials on a permanent basis provided you retain no copies and the recipient agrees to the terms of this Agreement. You may not reverse engineer, decompile, disassemble, or create derivative works from the SOFTWARE. SOFTWARE and written materials • GOVERNMENT LICENSEE. If you are acquiring the SOFTWARE on behalf of any unit or agency of the United States Government, the following provisions apply: The Government acknowledges TSC's representation that the SOFTWARE and its documentation were developed at private expense and no part of them is in the public domain. The Government acknowledges TSC's representation that the SOFTWARE is "Restricted Computer Software" as that term is defined in Clause 52.227-19 of the Federal Acquisition Regulations (FAR) and is "Commercial Computer Software" as that term is defined in Subpart 227.471 of the Department of Defense Federal Acquisition Regulations Supplement (DFARS). The Government agrees that: (i) If the SOFTWARE is supplied to the Department of Defense (DoD), the SOFTWARE is classified as "Commercial Computer Software" and the Government is acquiring only "restricted rights" in the SOFTWARE and its documentation as that term is defined in Clause 252.227-7013(c) (1) of the DFARS, and (ii) If the SOFTWARE is supplied to any unit or agency of the United States Government other than DoD, the Government's rights in the SOFTWARE and its documentation will be as defined in Clause 52.227-19 (c) (2) of the FAR. • RESTRICTED RIGHTS LEGEND. Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subparagraph (c) (1) (ii) of the Rights in Technical Data and Computer Software clause at DFARS 252.227- 7013. Thunder Scientific Corporation, 623 Wyoming SE, Albuquerque, NM 87123. • EXPORT LAW ASSURANCES. You acknowledge and agree that the SOFTWARE is subject to restrictions and controls imposed by the United States Export Administration Act (the "Act") and the regulations thereunder. You agree and certify that neither the SOFTWARE nor any direct product thereof is being or will be acquired, shipped, transferred or re-exported, directly or indirectly, into any country prohibited by the Act and the regulations thereunder or will be used for any purpose prohibited by the same. • GENERAL. This Agreement will be governed by the laws of the State of New Mexico, except for that body of law dealing with conflicts of law. Should you have any questions concerning this Agreement, or if you desire to contact TSC for any reason, please write: Thunder Scientific Corporation, 623 Wyoming NE, Albuquerque, NM 87123 2.6 WARRANTY Thunder Scientific Corporation warrants that the media on which the Software is distributed will be free from defects for a period of twelve (12) months from date of original purchase. During the warranty period, we will at no charge, repair or replace, at our option, any product that proves to be defective, provided you return the product to Thunder Scientific Corporation. This warranty does not

22 March 2019 12 apply to any product that has been repaired, serviced, altered, or modified by anyone other than an authorized representative of Thunder Scientific Corporation. Thunder Scientific Corporation shall not be liable for any consequential, special, incidental, direct or other damage, loss, or expense arising out of or connected with the manufacture, programming, packaging, storage, delivery (including any delay in or failure to deliver), or use of any products, whether or not resulting from negligence or breach of contract, except to the extent that those items sold and warranted by Thunder Scientific Corporation shall be repaired or replaced in accordance with the previously stated terms of this warranty contract. The repair or replacement of a product is your exclusive remedy. THUNDER SCIENTIFIC CORPORATION MAKES NO OTHER WARRANTY OR REPRESENTATION OF ANY KIND, EXPRESS OR IMPLIED, AND NO WARRANTY SHALL BE IMPLIED BY LAW. 2.7 COPYRIGHT ©2009-2019 Thunder Scientific Corporation 623 Wyoming Blvd. SE Albuquerque, New Mexico 87123, USA This document contains proprietary information which is protected by copyright. All rights are reserved. No part of this document may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, for any purpose without the prior written consent of Thunder Scientific Corporation. 2.8 TRADEMARKS ControLog is a trademark of Thunder Scientific Corporation. HumiCalc is a trademark of Thunder Scientific Corporation. THUNDER SCIENTIFIC is the registered trademark of Thunder Scientific Corporation ® ® ® MADE IN USA

22 March 2019 13 2.9 SPECIFICATIONS Relative Humidity Range:1 .......................................................................... 10 to 95 %RH, 10 to 40 L/min Relative Humidity Range:2 .......................................................................... 95 to 98 %RH, 10 to 20 L/min Frost Point Temperature Range: ........................................................................................... -33.60 to 0 °C Dew Point Temperature Range: ......................................................................................... -36.94 to 70 °C Chamber Temperature Range: 3 .............................................................................................. -10 to 72 °C Chamber Temperature Control Stability: 4 .................................................................................... 0.002 °C Chamber Temperature Uniformity: 5 ............................................................................................. <0.04 °C Chamber Temperature Heating Rate: from -10 to 72 °C ................................ 0.5 °C per Minute (average) Chamber Temperature Cooling Rate: from 72 to 10 °C .................................. 0.5 °C per Minute (average) Chamber Temperature Cooling Rate: from 10 to -10 °C ................................ 0.2 °C per Minute (average) Temperature Specification: ........................................................................................................... 0.027 °C Gas Type: ............................................................................................................................. Air or Nitrogen Gas Pressure Rating: (MAWP) ....................................................................................................... 175 psiG Gas Flow Rate Range: ........................................................................................................... 10 to 50 L/min Gas Flow Rate Specification: ................................................................................................ 5% of full scale Saturation Pressure Range: ......................................................................................... Ambient to 160 psiA Saturation Pressure Specification: ................................................................................. 0.02% of full scale Test Chamber Pressure Range: ...................................................................................................... Ambient Test Chamber Pressure Specification: .............................................................................. 0.02% of reading Supply Pressure Range: ............................................................................................... Ambient to 150 psiG Supply Pressure Specification: ......................................................................................................... ±1 psiG Display Resolution: .............................................................................................................................. 0.001 Test Chamber Dimensions: ......................................... 12” x 12” x 10” (304.8 mm x 304.8 mm x 254 mm) Physical Dimensions: ....................................... 22” H x 36” W x 23” D (558.8 mm x 432 mm x 584.2 mm) 1 The system will limit mass flow rate to 30 L/min for %RH greater than 90 when the temperature is 50 °C or higher. 2 The system will limit mass flow rate to 20 L/min for %RH greater than 95. 3 Using glycol/water as the temperature heat transfer fluid from -10 to 72 °C. Note: the 2900 can only operate for a finite amount of time at or below 0 °C 4 Temperature Control Stability is defined as the standard deviation over a 10-minute period, as measured by the saturation temperature control sensor after being at point for 60 minutes. 5 Chamber Temperature Uniformity is defined as the maximum temperature difference between any two locations at a single point in time. Locations are within one inch of the chamber wall and within 2.5 inches of the chamber door. Using a minimum chamber fan speed of 25% for a temperature range of -10 °C to 72 ° when using fluid jacket door option and ±10 °C from ambient when not.

22 March 2019 14 2.10 UNCERTAINTY 6 RH Uncertainty: 10 to 95 %RH, 0 to 70 °C, 10 to 40 L/min ................................................. 0.5% of reading RH Uncertainty: 95 to 98 %RH, 0 to 70 °C, 10 to 20 L/min ................................................. 0.5% of reading Dew/Frost Point Uncertainty: < 0.01 °C, 10 to 40 L/min ................................................................. 0.05 °C Dew Point Uncertainty: 0.01 to 70 °C, 10 to 40 L/min..................................................................... 0.08 °C Temperature Uncertainty: -10 to 72 °C ......................................................................................... 0.031 °C 6 Chamber pressure at 1 atmosphere, Uncertainty values represent an expanded uncertainty using a coverage factor, k=2, at an approximate level of confidence of 95%. Uncertainty is not specified at saturation temperatures below 0 °C or at flow rates below 10 L/min. Uncertainty is based on the worst-case value from the 2900 uncertainty analysis.

22 March 2019 15 2.11 FACILITY REQUIREMENTS 2.11.1 Environment Operating Temperature: .......................................................................................................... 15 to 30 °C Storage Temperature: ................................................................................................................ 0 to 50 °C Humidity: ..................................................................................................... 5 to 95% RH Non-condensing 2.11.2 Floor Space A bench and/or floor, capable of supporting approximately 300 pounds, with a minimum space of 27" (0.686m) deep x 43" (1.09m) wide. Allow an additional 20" (0.508m) in width for clearance, if possible, to allow complete opening of the chamber door and access to the test ports. Refer to drawings: 18D29901-2, 18D29910-1 2.11.3 Power Electrical Power: ....................................................................................... 220/230 V~, 10 A, 1 Ø, 50/60 Hz Gas Supply Maximum Inlet Pressure: ...................................................................... 175 psiG @ 50 L/min 2.11.4 Air Supply When not using the pneumatic cart, a clean, oil free instrument air supply operating at a @ 165 psiG and 50 L/m is required. The air supply should be filtered to a particle size of 0.5 microns or less, a hydrocarbon content of 1 PPM or less, with a pressure dewpoint of 15 °C or less. Regulated supply pressure other than recommended (175 psiG maximum) is acceptable but may limit the lowest humidity obtainable from the generator and will require an internal pressure regulator (REG) adjustment. Refer to section 2.12.5 Setting Supply Pressure Regulator for more information on adjusting the internal pressure regulator (REG). 2.11.5 Distilled Water Supply One gallon (3.8 liters) of double distilled water per fill. The one-gallon supply can last from 8 hours to more than 500 hours of use depending upon the temperature and humidity at which the generator is operated (reference section 13.3.4). During operation near ambient temperature and 50% RH, one gallon should last for approximately 200 hours.

22 March 2019 16 2.12 INSTALLATION 2.12.1 Uncrating Before uncrating, carefully inspect the crate and skid to be certain the unit was not subjected to damage. If there is damage, proceed no further and notify your inspection department and the shipping agent. If the crate appears satisfactory: 1. Remove steel strapping. 2. Using "Clip Removal Tool" or thin pry-bar, remove top cover clips then remove top panel. 3. One panel at a time, remove the panel clips then remove panel. 4. Remove polyethylene covering from unit. 5. Inspect for any visible damage. 6. Remove any/all accessory boxes. 7. Using forklift or another suitable lifting device, lift unit from skid and place on the 2900 cart or instrument bench. CAUTION! BEFORE APPROACHING THE EQUIPMENT WITH THE FORKLIFT, VISUALLY LOCATE ANY HARDWARE WHICH MIGHT PROJECT INTO THE PATH OF THE FORKS. PLACE FORKS AS WIDE AS POSSIBLE TO AVOID DAMAGE TO THE FRAME. 8. The unit may now be rolled to its point of installation. 2.12.2 Positioning Position the system to have access to all sides of the console. Remove cover panels and inspect for any visible damage that might have occurred during shipment. CAUTION! ALWAYS PROPERLY SHUTDOWN THE TOUCH PANEL PC VIA WINDOWS BEFORE SWITCHING OFF MAIN POWER. 2.12.3 Chamber Fluid Temperature conditioning of the Model 2900 test chamber utilizes a mixture of propylene glycol and water as a heat transfer fluid. This fluid is circulated by a magnetically coupled centrifugal pump through the refrigeration and heating system and the fluid shell surrounding the test chamber. 2.12.3.1 Chamber Fluid Filling Procedure 1. Ensure main power switch is OFF. 2. Remove top console panel. 3. Locate fluid fill port (under insulation and labeled "Fluid Fill Port"). 4. Remove "Red" cap and insert funnel into fluid fill port. 5. Add 2 gallons of 70% propylene glycol. Fill with water until level is approximately 1" (25.4 mm) below the bottom of the fill port or until level touches funnel nozzle tip.

22 March 2019 17 6. Remove funnel and replace fluid fill port cap and insulation. 7. Replace top console panel. Refer to drawings: 18D29901-1, 18D29901-4, 18D29909-1 2.12.3.2 Chamber Fluid Draining Procedure 1. Ensure main power switch is OFF. 2. Remove rear console panel. 3. Locate drain hose in the lower left rear corner of the generator (when looking at the back of the generator). 4. Extend hose, remove drain hose cap and empty the chamber fluid into a clean container with a minimum size of 4 gallons. Save the chamber fluid for refilling. 5. To restore hose: grasp hose and rotate counter clockwise ½ turn while pushing hose into left side storage cavity. 6. Replace rear console panel Refer to drawings: 18D29901-1, 18D29901-3, 18D29909-2 2.12.4 Reservoir Initial Filling Procedure The reservoir requires an initial filling prior to first use, then periodic filling thereafter. Refer to section 5.1 Water Reservoir Level for detailed instruction on how to fill the reservoir. 2.12.5 Setting Supply Pressure Regulator The supply pressure must be regulated to assure proper control and operation. The goal of the regulation is to remove the spikes that occur during air supply generation. Note – It is always recommended to double regulate the air supply; once at the supply and again at the 2900. Adjust the 2900’s internal pressure regulator (REG) to 10 psiG below the supply pressure, but never above 150 psiG. For example, if the supply pressure indicates 165 psiG then adjust the internal pressure regulator to 150 psiG (limited to 150). If the supply pressure indicates 155 psiG then adjust the internal pressure regulator to 145 psiG (10 psiG below). For the best results operate the generator in run mode at the default flow rate to assure the regulator adjustment corrects for any pressure drop caused by the flow rate. 1. Open the Supply Pressure Dialog by selecting “Supply Pressure” from the Utilities Menu Tab 2. Using a #6 or #8 straight blade screwdriver, rotate stem clockwise to increase pressure and counter-clockwise to decrease pressure while monitoring the supply pressure dialog window. Refer to drawings: 18D29901-1, 18D29901-3, 18D29901-8

22 March 2019 18 2.13 QUICK START This section will provide the user a quick start on operating the generator. For detailed information on operating the generator please refer to section 4 ControLog Interface. CAUTION! DO NOT OPERATE THE GENERATOR WITHOUT CHAMBER FLUID. 2.13.1 Power-Up To Power-Up the generator perform the following steps: • Verify that the air supply connection has been made. o If using the Series ACS2520 Air Compressor System (ACS)7 verify the following:  The On/Off valve is open (handle inline).  The AC power cable is connected to the ACS box.  The remote air compressor control cable is connected from ACS box to generator.  The Remote/Manual switch on the left side of the ACS box is in the Remote position.  Toggle the power switch located on the left side of the ACS box to ON. Note – When the Remote/Manual switch is in the Remote position the ACS compressor will not run when first switched to ON. The compressor is remotely controlled by the 2900 and will not start until the user requests an operation that requires supply pressure. o If using another air source, verify the following:  Supply is on and properly regulated. • Verify that AC power cable is connected to the generator. • Toggle the power switch located at the lower right rear of generator to ON. The generator will begin to boot up. 7 Refer to Thunder Scientific’s website www.thunderscientific.com for the ACS2520 manual and more information on the ACS2520.

22 March 2019 19 2.13.2 Loading Screen After the system boots the generator will show a loading screen which will indicate the status of the loading process and will also show the software version of the generator.

22 March 2019 20 2.13.3 ControLog Screen Upon completion of the loading process the generator will show the main ControLog page and a dialog showing the status of establishing communication with the generator.

22 March 2019 21 Once communication with the generator is established the generator’s parameter and data tabs will be displayed.

22 March 2019 22 2.13.4 Control Parameters The Parameter Tab Group is located on the left side of the application and contains a parameter tab for each connected device. The 2900 Parameters contain all the control and measurement parameters critical to the operation of the humidity generator.

22 March 2019 23 2.13.4.1 Scrolling the Parameters Each Parameter Tab can be scrolled up and down to show additional parameters.

22 March 2019 24 2.13.4.2 Setpoint Tile The Setpoint Tiles allow the user to control the operation of the humidity generator by changing the desired setpoint that the generator will control to. The Tiles contain 5 key parts; a header with the Parameter Name, the Actual Value, the real-time Uncertainty Value, the Setpoint Value and the Unit the values are displayed in. 2.13.4.2.1 Changing Setpoints To change a setpoint, click on the setpoint tile that you would like to change. A setpoint entry box will appear. For example, to change the Percent Relative Humidity setpoint click on the %RH setpoint tile. Enter the new value into the Setpoint Entry box and select Ok. Notice that the Percent Relative Humidity setpoint value updates to the new value and the actual values begin moving toward the new setpoint.

22 March 2019 25 2.13.4.3 Value Tile The Value Tiles display an actual value of a given parameter to the user. The Tiles contain 3 key parts; a header with the Parameter Name, the Actual Value and the Unit the value is displayed in. 2.13.5 Control Modes The user can change the operating mode of the 2900 by selecting from the drop-down menu within the Mode group on the Generator’s Operation menu tab. The drop-down allows the user to select between %RH, Frost Point, Dew Point, PPMv, PPMw, and Saturation Pressure.

22 March 2019 26 2.13.6 Generating and Shutting down The Run Menu allows the user to run the 2900 manually. The user can select to Generate or Shutdown. 2.13.6.1 Generate Mode Selecting Generate from the run menu commands the 2900 into generate mode. When in the Generate mode of operation, the system will control at the currently entered setpoints. Anytime a setpoint is changed, the system immediately begins adjusting to that new value, and will control at the new point. The Generate mode also allows you to change the humidity control mode at any time. For instance, the system may be controlling %RH, then you may immediately switch to Dew Point control mode. 2.13.6.2 Shutdown Selecting Shutdown from the run menu commands the 2900 to shutdown. The 2900 may be shutdown whenever it is generating. When stopped, all system functions shutdown, pressure is vented, and the idle Control/Display screen is shown. During this idle time, when the 2900 is stopped, gas is not flowing through the generator.

22 March 2019 27 2.13.7 Power-Off To turn the system off select the “Turn Off” command. The “Turn Off” command is located under the “File” menu. The Turn Off command will properly exit the software and shutdown the computers so that the main power switch can be switched off. Note – Always perform a Shutdown from the Operation Menu Tab before turning off the System. If there is current data that has yet to be saved the user will be asked to save the data before the system shuts down. Selecting this command when the generator is generating will result in the automatic shutdown of the generator. The user is safe to switch the power switch to OFF once the PC has shut down completely (display goes blank). CAUTION! TURNING OFF POWER WITHOUT SHUTTING DOWN THE SYSTEM FIRST CAN CORRUPT THE EMBEDDED WINDOW SYSTEM DRIVE.

22 March 2019 28 2.13.8 Set Date and Time The user can change the current system date and time through the status bar context menu. Note – To avoid time stamp confusion only change the system date and time when the generator is shutdown and not recording data. Start by long pressing or right clicking anywhere within the status bar. A long press is when you touch and hold the screen. Long enough for a square selection box to appear. Releasing will open the status bar context menu.

22 March 2019 29 Select “Set Date and Time” from the context menu to open the system Date and Time dialog.

22 March 2019 30 2.13.9 Help The Help Menu located on the upper right side of the screen, allows the user to open the 2900 System Manual. Note – Refer to the Thunder Scientific website (www.thunderscientific.com) for the latest manual edition and other information on your Model 2900 Humidity System.

22 March 2019 31 3 PRINCIPLE OF OPERATION The Model 2900 humidity generation system is based on the two-pressure principle. This process (shown below in elemental schematic form) involves saturating air or nitrogen, with water vapor at a given temperature and pressure. The saturated high-pressure gas flows through an expansion valve where it is isothermally reduced to test pressure. The indications of saturation temperature, saturation pressure, chamber temperature, and chamber pressure are then used in the determination of all hygrometric parameters such as %RH, Dew Point, PPM, etc. Humidity generation by this system does not depend upon measuring the amount of water vapor, but rather is dependent on the measurements of temperature and pressure alone. The precision of the system is determined by the accuracy of the temperature and pressure measurements, and on the constancy of them throughout. 3.1 PRE-SATURATION (TPSAT) The air stream of a two-pressure generator must be 100% saturated with water vapor at saturation temperature on the high-pressure (saturator) side of the expansion valve. This is accomplished by first passing the air stream through a "Pre-Saturator". The Pre-Saturator is a vertical pressure vessel presenting a water surface to the incoming air stream and is maintained at a temperature warmer than saturation temperature conditions. The Pre-Saturator temperature probe is used in the control of the Pre-Saturator heaters, which when activated, are used to control this temperature offset. 3.2 EXPANSION VALVE (TEXV) The expansion valve temperature probe is used in the control of the expansion valve heater, which when activated, is used to warm the expansion valve body, offsetting the cooling effects due to gas expansion. This expansion valve temperature is always maintained above the saturation temperature.

22 March 2019 32 3.3 SATURATION TEMPERATURE (TS) The saturation temperature probe is used to measure the fluid temperature at which the airstream is fully saturated with water vapor. This is a fundamental measurement for a Two-Pressure humidity generator. Saturation temperature is controlled directly through the Temperature setpoint. Refer to section 2.9 Specifications for range. Note - The 2900 can only operate for a finite amount of time at or below 0 ° 3.4 CHAMBER TEMPERATURE (TC) The chamber temperature probe is used to measure the temperature within the test chamber. This is a fundamental measurement for a Two-Pressure humidity generator. Chamber temperature is controlled indirectly through the temperature setpoint. Refer to section 2.9 Specifications for range. 3.5 SATURATION PRESSURE (PS) The Saturation Pressure transducer measures and controls the absolute pressure at which airstream is fully saturated with water vapor at saturation temperature conditions. This is a fundamental measurement for a Two-Pressure humidity generator. Saturation pressure can be controlled directly using the Saturation Pressure setpoint or indirectly through the humidity mode setpoint. Refer to section 2.9 Specifications for range. 3.6 CHAMBER PRESSURE (PC) The chamber pressure transducer is used to measure the pressure within the test chamber. This is a fundamental measurement for a Two-Pressure humidity generator. Chamber pressure is ambient pressure and is not controlled. Refer to section 2.9 Specifications for range. 3.7 HUMIDITY FORMULAS The humidity (or water vapor content) of a gas may be expressed in a variety of ways. While some basic understanding of humidity is helpful, thorough knowledge of the formulas and their relationships to the 2900 is not a requirement for successful operation of the generator. Refer to the HumiCalc with Uncertainty Reference Manual for a full description of the equations used by the 2900 to generate a known humidity and corresponding uncertainty value.

22 March 2019 33 4 CONTROLOG INTERFACE This section will provide the user with a detailed overview of ControLog’s layout and design. It is intended to allow the user to gain familiarity with ControLog’s user interface. The sections following will provide a deeper operational view of the functionality that ControLog offers. The ControLog application is composed of five basic features: Ribbon Style Menu Bar, Parameter Tab Group, Data and Graph Tab Group, Information Tab Group and the Status Bar. Each feature is designed to be intuitive to use and to provide the user with detailed information on the operation of the generator and/or connected device(s).

22 March 2019 34 4.1 MENU BAR The Ribbon Style Menu Bar is located at the top of the application and contains various selectable menu groups, which provide access to the different ControLog functions and controls. The Generator group provides commands that are directly related to the operation of the generator such as Operation, Profile, and Utilities. The Selection group is dynamic and provides commands based on the Data and Graph Tab Group tab that is currently selected. For example, if a data tab is selected, commands related to data will be available. If a graph tab is selected, then commands related to the graph will be available. 4.1.1 File Menu Tab The File Menu allows the user to perform file specific commands to open previous data files, profiles and device configurations. It also allows the user to save all open data or graphs, clear the status log, save the status log, restore the tab layout, about the application and shutdown system.

22 March 2019 35 4.1.1.1 Open Data File The Open file menu command allows the user to open previous data files for further review and analysis, device configurations for device data logging and profiles for generator automation. Selecting one of these commands will open a file dialog that will allow the user to browse to the desired location for the file to open. ControLog can open data saved in the follow type and format: • Text File (Comma Delimited) (*.csv;*.txt) • Text File (Tab Delimited) (*.dat;*.txt) • Excel Workbook (*.xlsx;*.xls) • Backup ControLog File (*.backup) The user can also view and select to open recent files and has the option to “Pin” the file for quicker access later on. This can be very useful if you have a device configuration that is often used or a commonly used profile as it removes the process of navigating and selecting the file each time.

22 March 2019 36 4.1.1.2 Save All Data The Save All file menu command allows the user to save all current open data tabs to individual files using a common name. This feature allows the user to quickly save multiple data tabs in a single operation. Selecting this command will open a save file dialog that will allow the user to specify the name and browse to the desired location to save the file. ControLog can save data in the following type and format: • Comma-Separated Values (*.csv) • Text File (Comma Delimited) (*.txt) • Text File (Tab Delimited) (*.txt) • Excel Workbook (*.xlsx) • Excel 97-2003 Workbook (*.xls) Example: If the user had two data tabs open, one called “2900 Data” and the other called “Agilent 34970A Data” and the user wanted to save the files as Excel Workbooks using the name “Test Data 10Dec15”. ControLog would save two files to the user specified location with the follow names: • Test Data 15Oct17 (2900).xls • Test Data 15Oct17 (Agilent 34970A).xls

22 March 2019 37 4.1.1.3 Status Log The Status Log file menu command allows the user to Clear or Save the status log. The Clear command allows the user to clear all current entries in the status log. The user will be asked to save the status log data before the log is cleared. The Save command allows the user to save the current entries in the status log. Selecting this command will open a save file dialog that will allow the user to specify the name and browse to the desired location to save the file. All status log files are saved in HTML format (*.html). 4.1.1.4 File Explorer Opens a Windows file explore to allow the user to manage files. This can be used to easily copy data and report files from the 2900 to an extern USB drive. 4.1.1.5 Clear Unpinned Items Clears all unpinned items in the list of recent files.

22 March 2019 38 4.1.1.6 About ControLog The About ControLog help menu command opens a dialog giving information on the ControLog application including version number. 4.1.1.7 Turn Off The Turn Off command allows the user to properly exit the software and shutdown the computers so that the main power switch can be switched off. If there is current data that has yet to be saved the user will be asked to save the data before the system shuts down. Selecting this command when the generator is generating will result in the automatic shutdown of the generator. Note – Always perform a Shutdown from the Operation Menu Tab before commanding a Shutdown System. The user is safe to switch the power switch to OFF once the PC has shut down completely (display goes blank). CAUTION! TURNING OFF POWER WITHOUT SHUTTING DOWN THE SYSTEM FIRST CAN CORRUPT THE EMBEDDED WINDOW SYSTEM DRIVE. 4.1.2 Home Menu Tab The home menu tab allows the user to create new graphs and data summaries, record data points, connect to the generator and create new device connections. It also allows the user to change ControLog’s displayed units. The Temperature, Pressure, Flow Rate, Density and Enthalpy units can be changed. 4.1.2.1 New Graph The New graph menu command allows the user to create a new graph. Selecting this command will open a New Graph Wizard dialog that will step the user through the selection process of what data the user would like to include in the new graph. This operation is always available.

22 March 2019 39 4.1.2.2 Create Data Summary The Create Data Summary data command allows the user to create a summary of any currently opened data. The feature lets the user specify what items, from which device, and at what intervals to include in the data summary. The data summary can also calculate error between the specified standard and the device under test. This operation is available whenever there is an open Data tab that contains data. For more information, refer to section 8 Data and Data Summary 4.1.2.3 Record Data Point The Record Data Point data command allows the user to record certain data items from any currently connected device either manually, with each manual device entry or at the completion of each soak phase in an auto profile. The user can specify the number of prior data points to include and has the option to automatically calculate average and or standard deviation of the prior data points. There are two submenus for this menu command; Settings and Take Point. This operation is available whenever device or generator data is being logged. The user can manually take a point using the button or by using the keyboard shortcut “Ctrl-P”. If the user has not configured the system to record data points, then ControLog will ask the user if they would like to define the settings before taking a point. 4.1.2.3.1 Settings The Settings submenu allows the user to define which data items and from which connected device they would like to record when a point is taken. They can also define the number of points prior to include and whether to calculate average and or standard deviation. The user can also configure when to take points, either manually, at the end of a profile soak phase or when a manual device entry is taken. For more information, refer to section 8 Data and Data Summary

22 March 2019 40 4.1.2.4 Data Storage Interval The Data Storage Interval data command allows the user to change the storage interval that data is recorded. This is the rate at which data is recorded to the data tabs for all connected devices. Selecting this command will open the “Data Storage Interval” dialog that will allow the user to change the data storage interval during the generate operation. If the “Set as Default” is checked, the new value will become the default start up interval. If not checked, the new value will only affect the current session. IMPORTANT! STORING AND MAINTAINING DATA CAN BECOME A TIME-CONSUMING PROCESS. THE MORE DATA THAT IS STORED IN THE DATA TAB, THE SLOWER AND LESS RESPONSIVE THE COMPUTER MAY SEEM. FOR THIS REASON, SOME CONSIDERATION SHOULD BE GIVEN TO THE AMOUNT OF DATA DESIRED, THE OVERALL TIME SPAN OF THE DATA (I.E. HOURS, POSSIBLY DAYS), AND ULTIMATELY THE DATA INTERVAL. Note - Data is only recorded while the 2900 is in generate mode. 4.1.2.5 New Device The New Device connection command allows the user to create a new device connection. Selecting this command will open a Connection Wizard dialog that will step the user through the process of creating a new connection to a device. For more information, refer to section 10 Connections

22 March 2019 41 4.1.3 Units Menu Tab The Units Menu Tab allows the user to change ControLog’s displayed units. The Temperature, Pressure, Flow Rate, Density and Enthalpy units can be changed. Note - All parameter tabs and graph tabs will be updated with the selected unit, but the data tabs will not change. All data tab values remain in SI units which provide a consistent unit base for saved data. 4.1.3.1.1 Temperature Unit The Temperature Unit allows the user to change the displayed units for temperatures. Available temperature units: • °F • °C • K 4.1.3.1.2 Pressure Unit The Pressure Unit allows the user to change the displayed units for pressure. Available pressure units: • psi • atm • Pa • hPa • kPa • MPa • bar • millibar

22 March 2019 42 4.1.3.1.3 Flow Unit The Flow Unit allows the user to change the displayed units for flow. Available flow units: • l/m • l/h • cfm • cfh 4.1.3.1.4 Density Unit The Density Unit allows the user to change the displayed units for density. Available density units: • g/L • g/m^3 • lb/ft^3 4.1.3.1.5 Enthalpy Unit The Enthalpy Unit allows the user to change the displayed units for enthalpy. Available enthalpy units: • btu/lb • J/g 4.1.4 Operation Menu Tab The Operation Menu Tab gives the user the ability to control the operation of the generator, from what humidity operating mode to the startup and shutdown of the generator.

22 March 2019 43 4.1.4.1 Mode The Mode Menu allows the user to change the operating mode of the 2900. It allows the user to select between %RH, Frost Point, Dew Point, PPMv, PPMw, and Saturation Pressure. 4.1.4.1.1 %RH Control Mode The %RH Control Mode, %RH, is controlled at a constant value by varying saturation pressure, Ps, to compensate for any changes in saturation temperature, Ts, chamber temperature, Tc, or chamber pressure, Pc. While %RH is held constant, all other humidity parameters may vary. 4.1.4.1.2 Frost Point Control Mode The Frost Point Control Mode, Tf, is controlled at a constant value by varying the saturation pressure, Ps, to compensate for changes in either saturation temperature, Ts, or chamber pressure, Pc. While Frost Point is held constant other humidity parameters may vary. Frost Point is independent of chamber temperature. 4.1.4.1.3 Dew Point Control Mode The Dew Point Control Mode, Td, is controlled at a constant value by varying saturation pressure, Ps, to compensate for any changes in either saturation temperature, Ts, or chamber pressure, Pc. While Dew Point is held constant, other humidity parameters may vary. Dew Point control mode is valid both above and below 0 °C, and Dew Point is independent of chamber temperature. 4.1.4.1.4 PPMv Control Mode The PPMv Control Mode is controlled at a constant value by varying saturation pressure, Ps, to compensate for any changes in saturation temperature, Ts. While PPMv is held constant, other humidity parameters may vary. PPMv is independent of chamber pressure and chamber temperature. 4.1.4.1.5 PPMw Control Mode The PPMw Control Mode is controlled at a constant value by varying saturation pressure, Ps, to compensate for any changes in saturation temperature, Ts. While PPMw is held constant, other humidity parameters may vary. PPMw is independent of chamber pressure and chamber temperature. 4.1.4.1.6 Saturation Pressure Control Mode The Saturation Pressure Control Mode, Ps, is controlled at a constant value independent of any other pressure, temperature, or humidity value. While saturation pressure is held constant, all humidity parameters may vary.

22 March 2019 44 4.1.4.2 Run Menu The Run Menu allows the user to run the 2900 manually in generate mode. The Run menu also allows the user to manually shutdown the 2900. 4.1.4.2.1 Generate Mode Selecting Generate from the run menu commands the 2900 into generate mode. Generate mode is used to operate the system when exact humidity points or associated time intervals have not been determined, when data must be viewed and/or verified manually before proceeding to the next humidity point, or when more immediate control over the generated humidity is required. When in the Generate mode of operation, the system will control at the currently entered setpoint indefinitely. Anytime a setpoint is changed, the system immediately begins adjusting to that new value, and will control at the new point indefinitely. Generate mode offers the flexibility to change the setpoint at any time and does not force you into any set sequence or for any prescribed amount of time. The Generate mode also allows you to change the humidity control mode at any time. For instance, the system may be controlling Frost Point, then you may immediately switch to PPMv control mode. 4.1.4.2.2 Shutdown Selecting Shutdown from the run menu commands the 2900 to shutdown. The 2900 may be shutdown while generating. When stopped, all system functions shutdown, pressure is vented, and the idle Control/Display screen is shown. During this idle time, when the 2900 is stopped, gas is not flowing through the saturator. 4.1.4.3 Chamber Fan Menu The Chamber Fan Menu allows the user to control the 2900 chamber fan speed. The chamber fan speed can be controlled from 0 (off) to 100 (max speed). The user can specify a speed by entering a value directly or by using the up/down arrows to increment the speed by 10. Note – The chamber fan will only operate when the system is generating. Refer to drawing: 18D29908

22 March 2019 45 4.1.4.4 Hour Meter The Hour Meter allows the user to see the number of operational hours the generator has on it. The hour meter indicates the number of hours the generator has been operated in the generate mode. 4.1.5 Profile Menu Tab The Profile Menu Tab allows the user to manage Auto Profiles. Auto Profiles give the user the ability to program a set of humidity and temperature test points and dwell times that will automate the 2900 generation process. The profile menu is dynamic and has operations that are specific to the profile tab. Specific operations will be hidden when another non-profile tab is selected. The Auto Profiling feature is very similar to the Generate mode with the main exception that profiling relies on a predefined list of setpoints referred to as a profile. The user configurable profile is used as ControLog's road map during Auto Profile operation. It defines which setpoint values to go to, at what rate to go from one setpoint to another, and how long to stay at a specific setpoint before moving to the next one. For more information, refer to section 9 Profiling. 4.1.5.1 New Profile The New profile command allows the user to create a new Auto Profile. 4.1.5.2 Save Profile The Save profile command allows the user to save the currently opened Profile. Selecting this command will open a save file dialog that will allow the user to specify the name and browse to the desired location to save the file. ControLog Auto Profiles are saved in XML format with a *.profile extension. 4.1.5.3 Close Profile The Close profile command allows the user to close the Profile tab. Selecting this command will close the Profile tab, but if the profile has not been saved, ControLog will ask the user to save the profile before closing the Profile tab.

22 March 2019 46 4.1.5.4 Insert Point The Insert Point command allows the user to insert new profile points between existing points. ControLog will insert a new point at the selected location and will automatically predict the values. 4.1.5.5 Delete Point The Delete Point command allows the user to delete the selected profile point. 4.1.5.6 Run Auto Profile The Run Auto Profile command allows the user to start an Auto Profile. Selecting this command will open the Profile Starting Point dialog which allows the user to select which point in the profile they would like to start the profile on. 4.1.5.7 Hold Point The Hold Point profile command allows the user to hold or pause the current Auto Profile point. Selecting Hold Point pauses the current point, allowing the system to remain indefinitely at the current point. While in a hold mode, the system is prevented from completing the ramp, assurance, or soak phases for a point. To resume the profile point, select the menu item again. This re-enables the point and allows the profile to resume normal operation. 4.1.5.8 Next Point The Next Point profile command allows the user to skip to the next point in the Auto Profile. Selecting Next Point manually advances to the next point, skipping any remaining ramp, assurance, or soak phase. 4.1.5.9 Next Phase The Next Phase profile command allows the user to skip to the next phase in the Auto Profile. Selecting Next Phase manually advances to the next phase. It causes Ramp Phase to proceed to the Assurance or Soak Phase, Assurance to proceed to Soak, or Soak to proceed to Ramp of the next profile point. This allows for early manual termination of any phase within a profile point.

22 March 2019 47 4.1.6 Utilities Menu Tab The Utilities Menu Tab gives the user access to various utilities functions such as Fluid Levels, Pump Rotation Test, Supply Pressure, generator Uncertainty, generator Calibration, System Parameters, generator Connection and Interface Console. 4.1.6.1 Reservoir Level The Reservoir Level indicates the current level of the water reservoir and when pressed, opens up the 2900 fluid level interaction dialog that allows the user to view the state of the various fluid levels and liquid level states. For more information, refer to section 5 Fluid Levels. 4.1.6.2 Supply Pressure The Supply Pressure indicates the current supply pressure and when pressed opens a dialog box for the user to view the current supply pressure (in gauge). If the generator is shutdown, this command will also open the supply pressure solenoid. The exact pressure value will vary based on the air supply connected to the generator.

22 March 2019 48 4.1.6.3 Import Uncertainty Solution (Requires Manager Access Level or above) The Import Uncertainty Solution file command allows a manager to import a HumiCalc with Uncertainty solution into ControLog to define the uncertainty for the Model 2900 humidity generator. Selecting this command will open an “Import Uncertainty” dialog that will step the user through the import process. Refer to your HumiCalc with Uncertainty Reference Manual for more information on creating uncertainty solutions. Clicking the “Browse” button will open a file dialog that will allow the user to browse to the desired location for the solution file to open. Once a file has been selected, clicking the “Ok” button will complete the import process and may display a status dialog as the solution is imported into ControLog. 4.1.6.4 Generator Calibration The Generator Calibration command opens the Calibration Wizard dialog for calibration of the Model 2900 Humidity generator’s temperature probes, pressure transducers and mass flow meter. ControLog will request a password to access the calibration functionality since it will affect the accuracy and possibly the operation of the generator if incorrectly performed. The passwords are located on the yellow product key flyer delivered with the generator. For more information, refer to section 6 Calibration 4.1.6.5 System Parameters (Requires Admin Access Level) The System Parameter command opens the System Parameter Wizard dialog to allow adjustment of the generator’s system parameters that pertain to operation, control, limits and etc. ControLog will request a password to access the system parameter functionality as changes should only be made upon request by Thunder Scientific Technical Support. 4.1.6.6 Expanded Parameters The Expanded Parameters command opens a second tab in the Parameter Tab Group with additional generator parameters used for technical support. This tab does not need to be opened during normal

22 March 2019 49 operation but can be used to help diagnose problems when requesting technical support. This tab will automatically be displayed when operating the generator under the “Admin” access level. 4.1.6.7 External Settings The External Settings command opens a dialog that allows the user to define the serial port and communication settings for external communications. For more information, refer to section 11 External Communication 4.1.6.8 Access Control The Access Control Menu allows the user to change the access level. The user can select between User, Manager, and Admin 4.1.6.8.1 User Access Level The User Access Level is default level and allows the user to run the generator, calibrate the generator, but does not give access to change system parameters, edit calibration coefficients or open interface console. No password is required for this level 4.1.6.8.2 Manager Access Level The Manager Access Level is one level above the user level and allows the user to run the generator, calibrate the generator, edit calibration coefficients but does not give access to change system parameters or open interface console. A password is required for this level.

22 March 2019 50 4.1.6.8.3 Admin Access Level The Admin Access Level gives the user full access to run the generator, calibrate the generator, edit calibration coefficients, change system parameters and open interface console. This level is intended for factory support and should not be used regularly by the user of the 2900. A password is required for this level. 4.1.7 Graph Menu Tab The Graph Menu Tab allows the user to create a New graph, Save, Close, Zoom, Scale, Auto Scale and set the Properties for the selected graph. The graph menu tab is part of the selection group which changes based on what data, graph or parameter tab is selected. The Graph Menu Tab will only operate on the currently selected graph tab. For more information, refer to section 7 Graphing. 4.1.7.1 New Graph The New graph command allows the user to create a new graph. Selecting this command will open a New Graph Wizard dialog that will step the user through the selection process of what data the user would like to include in the new graph. This operation is always available. 4.1.7.2 Save Graph The Save graph command allows the user to save the selected graph. Selecting this command will open a save file dialog that will allow the user to specify the name and browse to the desired location to save the file. ControLog graphs can be saved in following graphic file types: • Bitmap (*.bmp) • Graphics Interchange Format (*.gif) • Joint Photographic Experts Group (*.jpg) • W3C Portable Network Graphics (*.png) • EMF Enhanced Metafile Format (*.emf) 4.1.7.3 Close Graph The Close graph command allows the user to close the selected graph. Selection will result in a confirmation message to assure the user wants to close the graph.

22 March 2019 51 4.1.7.4 Zoom Graph The Zoom graph command allows the user to zoom a rectangular area of the graph. Selecting this command allows the user to create a rectangular area on the graph that will be zoomed. 4.1.7.4.1 Zoom Graph’s X Axis The Zoom X Axis graph command allows the user to zoom along the X Axis of the graph. Selecting this command allows the user to create a sectioned area on the graph that will be zoomed along the X Axis. 4.1.7.4.2 Zoom Graph’s Y Axis The Zoom Y Axis graph command allows the user to zoom along the Y Axis of the graph. Selecting this command allows the user to create a sectioned area on the graph that will be zoomed along the Y Axis. 4.1.7.5 Scale Graph The Scale graph command allows the user to scale both the X and Y axis. Selecting this command allows the user to use the scale using a touch or mouse gesture. Dragging the cursor up, scales the display in (zooms in) and dragging the cursor down, scales the display out (zoom out).

22 March 2019 52 4.1.7.5.1 Scale Graph X-Axis The Scale X-Axis graph command allows the user to scale the X axis. Selecting this command allows the user to use the scale using a touch or mouse gesture. Dragging the cursor up scales the X-Axis in (zooms X-Axis in) and dragging the cursor down scales the X Axis out (zooms X-Axis out). 4.1.7.5.2 Scale Graph Y-Axis The Scale Y-Axis graph command allows the user to scale the Y axis. Selecting this command allows the user to use the scale using a touch or mouse gesture. Dragging the cursor up scales the Y-Axis in (zooms Y-Axis in) and dragging the cursor down scales the Y Axis out (zooms Y-Axis out). 4.1.7.6 Auto Scale The Auto Scale graph command allows the user to reset the graph view to encompass all data. Selecting this command will automatically reset both axis of the graph so that the entire data set of each item is contained within the boundaries of the graph. 4.1.7.7 Graph Properties The Graph Properties graph menu command allows the user to modify the properties of the selected graph. Selecting this command opens the Graph Properties dialog that allows the user to make changes to what data is graphed, the display properties for each line and the axis values. 4.1.8 Data Menu Tab The Data Menu Tab allows the user to Save, Clear, Close, Select, Copy, Create and change the Storage Interval. The data menu tab is part of the selection group which changes based on what data, graph or parameter tab is selected. The Data Menu Tab will only operate on the currently selected data tab. For more information, refer to section 8 Data and Data Summary

22 March 2019 53 4.1.8.1 Save Data The Save data command allows the user to save the selected data tab. Selecting this command will open a save file dialog that will allow the user to specify the name and browse to the desired location to save the file. ControLog can save data in the following type and format: • Comma-Separated Values (*.csv) • Text File (Comma Delimited) (*.txt) • Text File (Tab Delimited) (*.txt) • Excel Workbook (*.xlsx) • Excel 97-2003 Workbook (*.xls) 4.1.8.2 Clear Data The Clear data command allows the user to clear the selected data tab. ControLog will ask the user to save any unsaved data tab before the tab is cleared. This operation is available only when at least one data point has been recorded in the selected data tab. 4.1.8.3 Close Data The Close data command allows the user to close the selected data tab. ControLog will ask the user to confirm before closing the tab and any unsaved data tab will also prompt the user to save the data before the tab is closed. This operation is available only when the device for the selected data tab is disconnected. 4.1.8.4 Select All Data The Select All data command allows the user to select all the data within a data tab. 4.1.8.5 Copy Selection The Copy Selection command allows the user to copy the selected data within a data tab to the clipboard. Selecting this command will copy the selected data within a data tab to the clipboard in a tab delimited format. This data may then be pasted into another program. 4.1.8.6 Create Data Summary The Create Data Summary data command allows the user to create a summary of any currently opened data. The feature lets the user specify what items from which device and at what intervals to include in the data summary. The data summary can also calculate error between the specified standard and the device under test. This operation is available whenever there is an open Data tab that contains data. For more information, refer to section 8 Data and Data Summary 4.1.8.7 Data Storage Interval The Data Storage Interval data command allows the user to change the storage interval that data is recorded. This is the rate at which data is recorded to the data tabs for all connected devices. Selecting this command will open the “Data Storage Interval” dialog that will allow the user to change the data storage interval during the generate operation. If the “Set as Default” is checked, the new value will become the default start up interval. If not checked, the new value will only affect the current session.

22 March 2019 54 IMPORTANT! STORING AND MAINTAINING DATA CAN BECOME A TIME-CONSUMING PROCESS. THE MORE DATA THAT IS STORED IN THE DATA TAB, THE SLOWER AND LESS RESPONSIVE THE COMPUTER MAY SEEM. FOR THIS REASON, SOME CONSIDERATION SHOULD BE GIVEN TO THE AMOUNT OF DATA DESIRED, THE OVERALL TIME SPAN OF THE DATA (I.E. HOURS, DAYS, POSSIBLY WEEKS), AND ULTIMATELY THE DATA INTERVAL. Note - Data is only recorded while the 2900 is in generate mode. Data is also stored at the generate rate whenever a device is connected and the 2900 is not connected. This gives the user the ability to use ControLog as a logging application for any device they can connect without the need of a Model 2900 Humidity generator.

22 March 2019 55 4.1.9 Device Settings Menu Tab The Settings Menu Tab allows the user to change the settings of a device connection, disconnect a device connection and open an interface console to view communication with a device. 4.1.9.1 New Device The New Device connection command allows the user to create a new device connection. Selecting this command will open a Connection Wizard dialog that will step the user through the process of creating a new connection to a device. For more information, refer to section 10 Connections 4.1.9.2 Settings The Settings connection menu command allows the user to change the settings for a specific connection. Selecting this command will open the Connection Wizard dialog for the selected connection, allowing the user to change connection settings as desired.

22 March 2019 56 4.1.9.3 Disconnect The Close connection menu command allows the user to close a specific connection. ControLog will ask the user to confirm before closing the connection. 4.1.9.4 Interface Console The Open Device Interface Console connection menu command under Settings allows the user to open a device console tab. The device console tab allows the user to view the commands being sent to and received from any given connected device. The user can select which connected device to view using the drop-down selection at the top of the tab. The data sent to and received from the selected device is displayed in the lower text area of the console tab.

22 March 2019 57 4.1.10 Help The Help Menu located on the right side of the ribbon menu, allows the user to open the 2900 System Manual (this document). Note – Refer to the Thunder Scientific website (www.thunderscientific.com) for the latest manual edition and other information on your Model 2900 Humidity System.

22 March 2019 58 4.2 PARAMETERS TAB GROUP The Parameter Tab Group is located on the left side of the application and contains a parameter tab for each connected device. Each parameter tab displays the current data for its device and a parameter tab can be selected using the scroll bar at the bottom of the group.

22 March 2019 59 If multiple parameter tabs are open the user can accessed other tabs using the scroll bar at the bottom of the group.

22 March 2019 60 All Device Parameter Tabs have a context menu that can be displayed by long pressing the tab title area or by right clicking in the tab area. The context menu allows quick access to the device related functions that are available in the Settings Menu Tab.

22 March 2019 61 4.2.1 Tiles Within each parameter tab area are tiles that allow the user to set setpoints, view actual values, and view real-time uncertainty values. There are two different tiles; a Setpoint Tile and a Value Tile.

22 March 2019 62 4.2.1.1.1 Setpoint Tile The Setpoint Tiles allow the user to control the operation of the humidity generator by changing the desired setpoint that the generator will control to. The Tiles contain 5 key parts; a header with the Parameter Name, the Actual Value, the real-time Uncertainty Value, the Setpoint Value and the Unit the values are displayed in. 4.2.1.1.1.1 Changing Setpoints To change a setpoint, click on the setpoint tile that you would like to change. A setpoint entry box will appear. For example, to change the Percent Relative Humidity setpoint click on the %RH setpoint tile. Enter the new value into the Setpoint Entry box and select Ok. Notice that the Percent Relative Humidity setpoint value updates to the new value and the actual values begin moving toward the new setpoint. The user can also pop-up a mini version of HumiCalc to help calculate the desired setpoint by clicking the drop-down arrow on the setpoint entry box. For example, let’s say the user wants to calculate the lowest %RH achievable given a limited supply pressure of only 100 psi.

22 March 2019 63 Start by opening the HumiCalc pop-up using the drop-down arrow at the right of the setpoint entry box. Next, select the known to be Saturation Pressure and enter the 100 psi supply pressure max.

22 March 2019 64 Clicking the “Calculate” button will result in the calculated %RH based on the 100 psi limit being placed in the Setpoint Entry Box and will close the HumiCalc pop-up. Clicking “Ok” will close the setpoint entry and will send the setpoint to the Model 2900 Humidity generator. 4.2.1.1.2 Value Tile The Value Tiles display an actual value of a given parameter to the user. The Tiles contain 3 key parts; a header with the Parameter Name, the Actual Value and the Unit the value is displayed in.

22 March 2019 65 4.2.2 2900 Parameter Tab The 2900 Parameters contain all the control and measurement parameters critical to the operation of the humidity generator.

22 March 2019 66 The 2900 Parameters can be scrolled up and down to show the currently generated humidity in different humidity terms that are calculated using the HumiCalc with Uncertainty engine, along with other values that are important to the operation of the 2900 generator.

22 March 2019 67 4.2.2.1 Actively Controlled Humidity The first tile on the Control Parameters is the actively controlled humidity parameter. For instance, if ControLog were set to control the generator on dew point, then Dew Point would be listed as the first parameter rather than %RH. This setpoint controls the humidity being generated. 4.2.2.2 Saturation Pressure The Saturation Pressure is the pressure reading of the saturator pressure transducer (T2). For more information, refer to section 3 Principle of Operation 4.2.2.3 Chamber Pressure Chamber Pressure is the pressure reading of the chamber pressure transducer (T3). For more information, refer to section 3 Principle of Operation 4.2.2.4 Temperature Temperature is the temperature reading of the saturator temperature probe (RTD1) which is a direct indication of the fluid system temperature. This setpoint controls the fluid system temperature within the system while generating. 4.2.2.5 Saturation Temperature Saturation Temperature is the temperature reading of the saturator temperature probe (RTD1). For more information, refer to section 3 Principle of Operation Note - The 2900 can only operate for a finite amount of time at or below 0 ° 4.2.2.6 Chamber Temperature Chamber Temperature is the temperature reading of the chamber temperature probe (RTD4). For more information, refer to section 3 Principle of Operation 4.2.2.7 Mass Flow Rate Mass Flow Rate is the mass flow reading of the flow meter (T4). This is the actual flow of the air supply entering the Pre-Saturator and is an indication of the total flow through the system once the saturation and chamber pressure have stabilized. The Mass Flow Rate setpoint controls the mass flow rate of the system. 4.2.2.8 %RH Percent Relative Humidity (%RH) is the ratio of the amount of water vapor in a given sample to the maximum amount possible at the same temperature and pressure. %RH is calculated at the chamber pressure and chamber temperature relative to the saturation pressure and saturation temperature. This is the most accurate calculation of %RH at the point in the immediate vicinity of the chamber temperature probe. Placing the chamber temperature probe at the humidity sensing point of the devices under test gives the actual value of the relative humidity being imposed on the devices, as it is dependent on both pressure and temperature.

22 March 2019 68 4.2.2.9 Frost Point Frost Point Temperature is the temperature to which a gas must be cooled in order to just begin condensing water vapor in the form of frost or ice, and therefore only exists at values below 0.01 °C. When operating the system with indicated Frost Points above 0.01 °C, the values indicated are to be interpreted as Dew Points. However, Frost Point is not the same as Dew Point for values below freezing. Frost Point is independent of test chamber temperature. 4.2.2.10 Dew Point Dew Point Temperature is the temperature to which a gas must be cooled in order to just begin condensing water vapor in the form of dew. Generally, Dew Point exists at temperatures above freezing. In many instances, Dew Point may actually exist at indicated values below freezing (super-cooled dew). However, it is important to note that Dew Point is not the same as Frost Point. Dew Point is independent of test chamber temperature. 4.2.2.11 PPMv Parts per Million by Volume is a ratio of the number of molecules of water vapor to the number of molecules of the other constituents in the gas. Once established, PPMv is pressure and temperature insensitive, and is therefore independent of test chamber temperature and test chamber pressure. 4.2.2.12 PPMw Parts per Million by Weight is a ratio of the weight of the water vapor in a sample to the weight of the remaining constituents in the gas. Once established, PPMw is pressure and temperature insensitive, and is therefore independent of test chamber temperature and test chamber pressure. 4.2.2.13 Grains/lb Grains per pound is a ratio of the weight, in grains, of water vapor to the weight, in pounds, of the other constituents in the gas. (7000 grains = 1 pound). Once established, Grains/lb is pressure and temperature insensitive, and is therefore independent of test chamber temperature and test chamber pressure. 4.2.2.14 Enthalpy Enthalpy is a measure of the amount of energy required to change a gas from one temperature/humidity value to another. In application, enthalpy is not used as an absolute value, but rather it is the difference in enthalpy between two distinct points which are of interest. The datum point which results in zero enthalpy was therefore arbitrarily chosen at a test temperature of 0 °C and 0 %RH. Applying enthalpy is a matter of computing the difference in enthalpy between two or more distinct data points. 4.2.2.15 SVP@Tt Saturation Vapor Pressure (SVP) computed at the Test Temperature. 4.2.2.16 SVP@Td Saturation Vapor Pressure (SVP) computed at the Dew/Frost Point Temperature. 4.2.2.17 SVP@Ts Saturation Vapor Pressure (SVP) computed at the Saturation Temperature. 4.2.2.18 [email protected] Enhancement Factor at Test Temperature and Pressure.

22 March 2019 69 4.2.2.19 [email protected] Enhancement Factor at Dew/Frost Point Temperature and Test Pressure. 4.2.2.20 [email protected] Enhancement Factor at Saturation Temperature and Pressure. 4.2.2.21 Specific Humidity Specific Humidity is a ratio of the weight of the water vapor to the total weight of the humidified gas. Specific Humidity is independent of test chamber temperature. 4.2.2.22 Absolute Humidity Absolute Humidity is the weight of the water vapor per unit volume of humidified gas. 4.2.2.23 Dry Air Density Dry Air Density is the partial density in weight per unit volume of only the dry air portion of a moist air sample. In other words, if the water vapor were removed from a fixed volume of air, the remaining dry air would exhibit this density. 4.2.2.24 Moist Air Density Moist Air Density is the total weight per unit volume of a moist air sample. This density includes both the weight of the air and the weight of the water vapor. 4.2.2.25 Wet Bulb Temperature Wet Bulb temperature is used in wet bulb/dry bulb aspirated Psychrometry, and is the temperature measured by a temperature probe whose tip is coated with water (typically by being covered with a wet sock). When aspirated at a constant air velocity, the wet bulb will cool due to evaporation of the water from the probe. The cool temperature, to which it equilibrates, is used in the calculation of humidity parameters. 4.2.2.26 Mixing Ratio by Volume Mixing Ratio by Volume is a ratio of the partial pressure of the water vapor to the partial pressure of the remaining constituents in the sample. Mixing Ratio by Volume is independent of test chamber temperature. 4.2.2.27 Mixing Ratio by Weight Mixing Ratio by Weight is a ratio of the weight of the water vapor to the weight of the remaining constituents in the sample. Mixing Ratio by Weight is independent of test chamber temperature. 4.2.2.28 Percent by Volume Percent by Volume is a ratio (expressed as a percentage) of the partial pressure of the water vapor to the total pressure of the sample. Percent by Volume is independent of test chamber temperature. 4.2.2.29 Percent by Weight Percent by Weight is a ratio (expressed as a percentage) of the weight of the water vapor to the total weight of the sample. Percent by Weight is independent of test chamber temperature. 4.2.2.30 Vapor Mole Fraction Vapor Mole Fraction is the mole fraction of water vapor in a sample.

22 March 2019 70 4.2.2.31 Dry Air Mole Fraction Dry Air Mole Fraction is the mole fraction of the dry air portion of a sample. The dry air portion is considered to be all constituents in a gas exclusive of the water vapor. 4.2.2.32 Cabinet Temperature Cabinet Temperature is the temperature reading of the cabinet temperature probe (RTD5). 4.2.2.33 Exp-Valve Temperature The Exp-Valve Temperature is the temperature reading of the expansion valve probe (RTD3) For more information, refer to section 3 Principle of Operation 4.2.2.34 Pre-Saturator Temperature The Pre-Saturator temperature is the temperature reading of the Pre-Saturator probe (RTD2). For more information, refer to section 3 Principle of Operation 4.2.2.35 Supply Pressure Supply pressure is the pressure reading of the gas supply pressure transducer (T1). The supply pressure value is gauge pressure. 4.2.2.36 Water Reservoir Level Water reservoir level (LL1, LL1P) is the liquid level reading of the water within the reservoir. Refer to section 5.1.1 Fill Water Reservoir for detailed instruction on how to fill the reservoir.

22 March 2019 71 4.2.3 Device Parameter Tabs The Device Parameter Tabs show the current actual values for the given device. The tabs are visible whenever the device is connected. The Device Parameters will display a scrollbar as needed to allow for varying display sizes without loss of data.

22 March 2019 72 4.2.3.1 Device Parameters Device Parameters contain all the most recent actual measurement parameters received from the device. Each parameter is displayed in a separate Value Tile.

22 March 2019 73 4.3 DATA AND GRAPH TAB GROUP The Data and Graph Tab Group is located in the middle right of the application and can contain data, graph, and profile tabs. Data and Graph tabs are fixed tab style windows that can be selected by clicking the desired tab labels at the top.

22 March 2019 74 In addition to using the “Close Data” command from the ribbon menu a Data and Graph Tab can be closed depending on the state of the device or generator using the “X” in the upper right-hand corner. 4.3.1 Data Tabs Data Tabs contain a spreadsheet type view of the logged data. For more information, refer to section 8 Data and Data Summary 4.3.2 Graph Tabs Graph Tabs contain a pictorial view of the logged data. For more information, refer to section 7 Graphing 4.3.3 Profile Tab The Profile Tab contains the profile point definitions for an auto profile. For more information, refer to section 9 Profiling

22 March 2019 75 4.4 INFORMATION TAB GROUP The Information Tab Group is located on the bottom right hand side of the application. This is a docking style window that can be “pinned” open or allowed to close when not active. An information tab is selected by clicking its tab label at the bottom of the group. The Information Tab Group contains status information about the operation of the generator and its connected devices. The group can consist of a Status Log tab, 2900 Reported Errors tab and a 2900 Interface Console tab. By clicking the pin icon on any information tab, the user can pin or unpin the Information tabs. By default, the information tabs are unpinned, and they will automatically hide.

22 March 2019 76 The user can access the hidden tabs by clicking the desired information tab label at the bottom. All Information Tabs have a context menu that is displayed by long pressing or right clicking in the tab. The context menu allows quick access to functions that can clear and save the information.

22 March 2019 77 4.4.1 Status Log The Status Log tab contains chronological information about the system status, changes in operational modes, changes in setpoints, and runtime errors due to communication or mechanical difficulties encountered by the generator. 4.4.2 2900 Reported Errors The 2900 Reported Errors tab only appears when the 2900 reports an error. This is a very important information tab because it reports 2900 system errors to the user. These types of errors can cause the 2900 to shutdown and require immediate attention by the operator. The icon will be displayed to help draw the attention of the user to the reported 2900 errors. 4.4.3 System timing The System Timing tab shows information about the current timing associated with the current operation such as elapsed run time at current conditions. This window may be shown at any time by clicking the “Point Time” in the status bar and is automatically shown when an Auto Profile is started. The tab gives detailed information on the Auto Profile as it runs. Elapsed and remaining Phase, Point and Total time are listed along with the detailed assurance conditions values and tolerances. 4.4.4 2900 Interface Console The 2900 Interface Console tab allows the user to send and receive commands to and from the 2900. The console tab is opened by selecting “Interface Console” from the Utilities Menu Tab. This feature is intended for factory support and should not be used regularly by the user of the 2900.

22 March 2019 78 4.4.5 Device Interface Console The Device Interface Console tab allows the user to view the commands being sent to and received from any given connected device. The device console tab is opened by selecting “Interface Console” from the Settings Menu Tab whenever a device is connected. The user can select which connected device to view using the drop-down selection at the top of the tab. The data sent to the device is indicated by a bold “Sent:” label in the lower text area of the console tab. The data received from the device is indicated by a bold “Received:” label in the lower text area of the console tab.

22 March 2019 79 4.5 STATUS BAR The Status Bar is located on the bottom of the application window. The Status Bar displays the current Connection and Run Status of the generator, Auto Profile Controls and Status, and current Point Time. 4.5.1 Connection and Run Status The Connection and Run Status is shown on the left-hand side of the status bar and gives the user a quick visual and textual reference to the current state of the Model 2900 Humidity generator. As new events are recorded into the Status Log, the event will be displayed for a short period of time in the status bar to inform the user of the new event. 4.5.1.1 Disconnected The status bar will show an “unplugged” icon and “Disconnected” when the 2900 is not connected to ControLog. 4.5.1.2 Generating The status bar will show a green forward arrow icon and “System is generating” when the 2900 is generating. If the 2900 is reporting an error, the green forward arrow icon will also appear with a small yellow warning. 4.5.1.3 Shutdown The status bar will show a blue stop icon and “System is shutdown” when the 2900 is shutdown. If the 2900 is reporting an error, the blue stop icon will also appear with a small yellow warning.

22 March 2019 80 4.5.1.4 New Event During any state, the most recent status log event will be shown briefly in the status bar. 4.5.2 Auto Profile Controls and Status The Auto Profile Controls and Status are shown on the right-hand side of the status bar and give the user quick control and status over a running profile. The Auto Profile consists of three status parts and three control parts. For more information, refer to section 9 Auto Profiling 4.5.2.1 Auto Profile Controls The Auto Profile controls consist of a “Pause” button, “Next Point” button and a “Next Phase” button. 4.5.2.2 Auto Profile Status The Auto Profile status consists of the generator “Run Mode” for the current profile point, the “Profile Point” the system is currently running and the “Phase” of the current point.

22 March 2019 81 4.5.3 Current Point Time The Current Point Time is shown on the right-hand side of the status bar and gives the user a quick display to the amount of time the system has been at point. Point Time is not the amount of time at setpoint but simply the amount of time since the last setpoint or mode change. The user can click the point time to open the system timing tab. 4.5.4 Set Date and Time The user can change the current system date and time through the status bar context menu. Note – To avoid time stamp confusion only change the system date and time when the generator is shutdown and not recording data. Start by long pressing or right clicking anywhere within the status bar to open the status bar context menu.

22 March 2019 82 Select “Set Date and Time” from the context menu to open the system Date and Time dialog.

22 March 2019 83 5 FLUID LEVELS The Fluid Levels dialog allows the user to view the current level of the Water Reservoir along with the states of the liquid level sensors. To access the Fluid Level dialog, select Reservoir Level from the Generator Utilities menu. For more information, refer to section 13.4 Fluid System 5.1 WATER RESERVOIR LEVEL The Water Reservoir Level is the measured distilled water level in the water reservoir and is an indication of the amount of distilled water available to fill the Pre-Saturator during operation. This is the distilled water supply used by the generator to generate a humidified gas output.

22 March 2019 84 5.1.1 Fill Water Reservoir a) Remove the reservoir fill port cap located on the top panel of the system. Attach the provided funnel to fill port. CAUTION! THE SYSTEM MUST BE SHUT DOWN AND VENTED OF PRESSURE BEFORE THE WATER RESERVOIR CAN BE FILLED b) Add up to 1 gallon (3.8 liters) of double distilled (or better) water until the Water Reservoir Level indicates full. A small funnel may be useful. Add the water slowly so as not to overfill the reservoir. c) Remove funnel and replace fill port cap, finger tighten, and proceed with operation. Note - If the water reservoir is out of water and the system shuts down with the “Unable to Fill Pre- Saturator Reservoir” error you must refill the water reservoir to a minimum of 75% full before trying to generate again. It is recommended to always fill the reservoir to 100% whenever filling is required. It is possible to overfill the reservoir depending on the rate the reservoir is filled. The system will indicate an over filled condition by displaying the tank level in red. In most cases this is not an issue but if the system is filled over 110% then pressure control may become erratic and some water may need to be removed from the reservoir.

22 March 2019 85 5.2 LIQUID LEVEL SENSORS Liquid Level Sensors indicate a discrete state of the given sensor. Red indicates no water sensed and green indicates water is sensed. The exception is the pump water circulation Flow Switch (FS1) where red indicates no fluid flow and green indicates the presence of fluid flow. 5.2.1 Pre-Saturator Level The Pre-Saturator Level is a discrete indication of the Pre-Saturator water level. When the system is shutdown, a click of the label or indicator will start a manual filling process for the Pre-Saturator. This feature is mainly used after the water reservoir tank is filled or when the Pre-Saturator has been drained. Note - The system will automatically fill the Pre-Saturator as needed while generating. Click the “Pre-Saturator Level” label and the system will open the pre-saturator fill solenoid to allow distilled water to flow from the reservoir to the Pre-Saturator. The system will indicate that it is filling with the message “Filling Pre-Saturator” and will continue the fill process until the Pre-Saturator is full as indicated by the Pre-Saturator Level indication turning green. Once filled the system will automatically stop and close the pre-saturator fill solenoid. The user has the option to cancel the filling operation at any time by clicking the label or indicator again.

22 March 2019 86 5.2.2 Flow Switch The Flow Switch (FS1) is a discrete indication of the water circulation pump operating correctly. When the flow switch indication is red, water is not being circulated within the system. Water will only be circulated when operating in the Generate mode. Refer to section 2.12.3.1 Chamber Fluid Filling Procedure for information on adding fluid to the chamber jacket Refer to section 13.4 Fluid System for information on the system’s fluid system.

22 March 2019 87 6 CALIBRATION Proper calibration of the temperature and pressure transducers is critical to the accuracy of the generated humidity. Each time a probe or transducer is calibrated its current calibration coefficients and calibration data are stored to disk. Calibration of the system requires the following support equipment: Note - The following information is provided as a recommendation for the calibration of the Thunder Scientific 2900 Humidity Generator. It is the user’s responsibility to ensure the standards used meet/exceed their organization’s specific test limit/guard banding requirements. 1) Temperature, range 0 to +72 °C (standard range) or -10 to +72 °C (low temp range): • Precision temperature bath of specified range with a liquid medium (recommend FC-77 Fluorinert, a 3M product). Note - Less stable baths may require the use of a thermal block. • Standard or reference thermometer (PRT) of specified range with an accuracy low enough to assure ±0.027 °C test limit or guard band. 2) Chamber Pressure, range ambient to 17 psi absolute: • Stable static gas pressure source. • Standard or reference pressure gauge with an accuracy low enough to assure ±0.020 % of reading test limit or guard band. 3) Saturation Pressure, range ambient to 160 psi absolute: • Stable static gas pressure source. • Standard or reference pressure gauge with an accuracy low enough to assure ±0.020 % of full-scale (160 *± 0.020% = ±0.032 psi absolute) test limit or guard band. 5) Flow, range 0 to 50 standard liters/min: • Reference flow meter with an accuracy low enough to assure ±5.0 % of full-scale (50.0 *± 5.0% = ±2.5 liter/min) test limit or guard band. Note – Flow is standardized with a reference temperature of 70.0 °F at 760 torr 6.1 TEMPERATURE CALIBRATION The temperature calibration procedure is used in conjunction with a precision temperature bath for calibration of the temperature probes. By using the temperature bath to generate up to five known temperatures, all coefficients will be calculated automatically by the computer and used to update the system calibration. Calibration reports will be generated and can be saved for each of the temperature probes at the conclusion of each calibration sequence. Refer to drawings: 18D29901-1, 18D29901-3, 18D29901-4

22 March 2019 88 6.1.1 Equipment Required 1. Precision Temperature Bath. 2. Standard or Reference thermometer. 3. #10 Torx 4. 9/16” wrench 6.1.2 Calibration Procedure For safety purposes, perform a shutdown, perform a shutdown system, switch system "POWER" to OFF and remove power cord before removing any panel or air supply line. CAUTION! ALL SYSTEM PRESSURE MUST BE VENTED BEFORE PROCEEDING. 1. Disconnect the air supply line. 2. Using the appropriate tool, remove the top, left and rear panels. 3. Remove temperature probes to be calibrated. Note - The Cabinet Temp (RTD5) does not require calibration and can't be removed. • Chamber Temperature Probe (RTD4): Remove the access port insulation and remove the Chamber Temperature Probe by pulling the rubber cork and feeding the probe and cable through the chamber jacket opening. • Saturation Temperature Probe (RTD1): Remove the access port insulation and remove the Saturation Temperature Probe by pulling up from the thermal well. • Presaturator Temperature Probe (RTD2): Remove the Presaturator Temperature Probe by pulling straight down from the thermal well. • Expansion Valve Temperature Probe (RTD3): To gain access to the Expansion Valve Temperature Probe, remove the expansion valve access cover. Loosen the knurled compression nut which holds the temperature probe. Gently slide the probe out, leaving the knurled nut assembly in place. • Uncoil the temperature probe cables. 4. Bring a precision temperature bath with reference thermometer to the system and install RTDs to be calibrated into temperature bath. 5. Switch main console power ON. Wait a few moments for the system to initialize and for the Control/Display screen to appear.

22 March 2019 89 CAUTION! DO NOT ENABLE CONTROL BY SELECTING GENERATE WITH ANY TEMPERATURE PROBE REMOVED FROM THE SYSTEM. From the Units menu tab select the desired temperature units for calibration. Once calibration has begun, the units should not be changed again until the calibration is complete. Select Generator Calibration from the Utilities menu tab to open the Calibration Wizard.

22 March 2019 90 Select, “Take “As Received” points”. This will allow the user to take points with the current calibration to determine out of tolerance. After all “As Received” points have been taken the user will be asked whether they want to calculate new calibration coefficients. Set the type of calibration to Temperature.

22 March 2019 91 Select the temperature probes to be calibrated. In most case this will be all four probes, but the user is able to calibrate any given probe separately or together. If the temperature standard is a connected device (refer to section 9 Connections), you may select it for the calibration. You can use a single device item with the same calibration type from any connected device. ControLog will automatically record the standard’s value during each calibration point. If the standard is not connected or if you desire to manually enter the standard’s value, then simply do not select an item from the list.

22 March 2019 92 Enter the Name and ID of the standard being used. This information will be populated on the calibration report. Selecting “Next” without entering a Name will result in ControLog giving the standard a generic name. Enter the desired calibration tolerance or guard band for the calibration. ControLog will signal the user that a calibration item is out of tolerance based on the value entered above. The tolerance is the allowable variation between the standard or reference and the item being calibrated. This is best thought of as a window based on a minimum and maximum value, the minimum being the standard minus the tolerance and the maximum being the standard plus the tolerance. If the value of the item being calibrated is outside the window, then the item is considered out of tolerance.

22 March 2019 93 An out of tolerance condition will be indicated by a red circle with an explanation point for the out of tolerance probe in the Error column. Enter the sample size used to perform the standard deviation calculation. The sample size is the given time that ControLog will use to determine which data points to use to determine the standard deviation of each probe. Note - The number of points used will be based on the data storage rate you have selected along with the desired sample size. For example, if the data storage rate is every 30 seconds then a sample size of 10 minutes will result in 20 points being used to calculate the standard deviation.

22 March 2019 94 Select the number of points you would like to take for this “As Received” calibration. Each point defines what the “true” value is at a given point based on the standard or reference value. The number of points determines the degree of the polynomial used to align or correct the generator with the standard or reference. Using the temperature bath, generate the first temperature point (0 °C). If the standard is not a connected device, then ControLog will ask for the value before taking the point. You can also enter a standard or reference value before taking a point by clicking the cell in the “Standard” row and “Value” column. This is useful for seeing error values before a point is taken.

22 March 2019 95 Once the readings are stable, click the “Take Point” button. Then once a point has been taken the wizard will automatically advance to the next point. Tip - Use the “Next” and “Back” button to navigate between taken points. You can clear and retake a point by simply clicking the “Clear Point” button and then repeat the process to retake the point.

22 March 2019 96 Using the temperature bath, generate the second temperature point (17.5 °C). Once the readings are stable enter the standards value and click the “Take Point” button. Using the temperature bath, generate the third temperature point (35 °C). Once the readings are stable enter the standards value and click the “Take Point” button.

22 March 2019 97 Using the temperature bath, generate the fourth temperature point (52.5 °C). Once the readings are stable enter the standards value and click the “Take Point” button. Using the temperature bath, generate the last temperature point (70 °C). Once the readings are stable enter the standards value and click the “Take Point” button.

22 March 2019 98 When all temperature points have been entered, ControLog will advance to the “As Received” calibration report. Each temperature probe will appear in its own tab and contains the data for each calibration point along with the coefficients used at the time the points were taken. Clicking the “Save Reports” button will open a file dialog to save the report. The default file location is …Documents\Thunder Scientific\2900 ControLog\Reports\. If the report is saved in an Excel format, then each probe will appear in its own tab within the workbook. The user needs to save in a text-based format then a file for each probe calibrated will be created.

22 March 2019 99 Clicking “Next” will ask the user if they want to calculate new coefficients using the “As Received” data points just taken. If the user selected to calculate new coefficients, they will be calculated and displayed. If any problem calculating the coefficient occurs, ControLog will issue a message telling the user that the coefficients could not be calculated.

22 March 2019 100 Next, the user will be asked to save the new coefficients to the system. Selecting “Yes” will result in the current coefficient being over-written by the newly calculated coefficients. Next, the user can view and save the calibration coefficients report for each probe.