Hoffer Flow Controls HRT1 Operation & User’s Manual

HART Communications Protocol USER’S MANUAL HP-313 April 2018 107 Kitty Hawk Lane ●P.O. Box 2145 ●Elizabeth City, NC 27909 1-800-628-4584 ● (252) 331-1997 ● Fax (252) 331-2886 www.hofferflow.com email: [email protected]

material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. This manual has been provided as an aid in installing, connecting, calibrating, operating, and servicing this unit. Every precaution for accuracy has been taken in the preparation of this manual; however, Hoffer Flow Controls, Inc. neither assumes responsibility for any omissions or errors that may appear nor assumes liability for any damages that result from the use of the products in accordance with information contained in the manual. HOFFER FLOW CONTROLS' policy is to provide a user manual for each item supplied. Therefore, all applicable user manuals should be examined before attempting to install or otherwise connect a number of related subsystems. During installation, care must be taken to select the correct interconnecting wiring drawing. The choice of an incorrect connection drawing may result in damage to the system and/or one of the components. Please review the complete model number of each item to be connected and locate the appropriate manual(s) and/or drawing(s). Identify all model numbers exactly before making any connections. A number of options and accessories may be added to the main instrument, which are not shown on the basic user wiring. Consult the appropriate option or accessory user manual before connecting it to the system. In many cases, a system wiring drawing is available and may be requested from Hoffer Flow Controls. This document contains proprietary information, which is protected by copyright. All rights are reserved. No part of this document may be photocopied, reproduced, or translated to another language without the prior written consent of Hoffer Flow Controls, Inc. HOFFER FLOW CONTROLS’ policy is to make running changes, not model changes, whenever an improvement is possible. This affords our customers the latest in technology and engineering. The information contained in this document is subject to change without notice. THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. HFC SHALL NOT BE LIABLE FOR ANY LOSS OR DAMAGE RESULTING, DIRECTLY OR INDIRECTLY, FROM THE USE OR LOSS OF USE OF THE GOODS. WITHOUT LIMITING THE GENERALITY OF THE FOREGOING, THIS EXCLUSION FROM LIABILITY EMBRACES THE PURCHASER'S EXPENSES FOR DOWNTIME OR FOR MAKING UP DOWNTIME, DAMAGES FOR WHICH THE PURCHASER MAY BE LIABLE TO OTHER PERSONS, DAMAGES TO PROPERTY, AND INJURY TO OR DEATH OF ANY PERSONS. HFC NEITHER ASSUMES NOR AUTHORIZES ANY PERSON TO ASSUME FOR IT ANY OTHER LIABILITY IN CONNECTION WITH THE SALE OR USE OF HFC'S GOODS, AND THERE ARE NO ORAL AGREEMENTS OR WARRANTIES COLLATERAL TO OR AFFECTING THE AGREEMENT. PURCHASER'S SOLE AND EXCLUSIVE REMEDY IS THE REPAIR AND/OR REPLACEMENT OF NONCONFORMING GOODS AS PROVIDED IN THE PRECEDING PARAGRAPHS. HFC SHALL NOT BE LIABLE FOR ANY OTHER DAMAGES WHATSOEVER INCLUDING INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.

________________________________________________________________ HOFFER FLOW CONTROLS, INC. ("HFC") warrants HFC's Precision Series and API Series of turbine flowmeters to be free from defects in material and workmanship under normal use and service, only if such goods have been properly selected for the service intended, properly installed and properly operated and maintained as described in the turbine flowmeter manual. Reference "turbine flowmeter manual" for specific details. This warranty shall extend for a period of five (5) years from the date of shipment to the original purchaser and covers the Precision Series, API Series and CT Series of flowmeters supplied with their standard hybrid ceramic ball bearings only. All other HFC products carry a one (1) year warranty. This warranty is extended only to the original purchaser ("Purchaser"). Purchaser's sole and exclusive remedy is the repair and/or replacement of nonconforming goods as provided in the following paragraphs. In the event Purchaser believes the Hoffer product is defective, the product must be returned to HFC, transportation prepaid by Purchaser, within the appropriate warranty period relative to the product. If HFC's inspection determines that the workmanship or materials are defective and the required maintenance has been performed and, has been properly installed and operated, the product will be either repaired or replaced, at HFC's sole determination, free of additional charge, and the goods will be returned, transportation paid by HFC, using a transportation method selected by HFC. Prior to returning the product to HFC, Purchaser must obtain a Returned Material Authorization (RMA) Number from HFC's Customer Service Department within 30 days after discovery of a purported breach of warranty, but not later than the warranty period; otherwise, such claims shall be deemed waived. See the Return Requests/inquiries Section of this manual. If HFC's inspection reveals the Hoffer product to be free of defects in material and workmanship or such inspection reveals the goods were improperly used, improperly installed, and/or improperly selected for service intended, HFC will notify the purchaser in writing and will deliver the goods back to Purchaser upon receipt of Purchaser's written instructions and agreement to pay the cost of transportation. If Purchaser does not respond within thirty (30) days after notice from HFC, the goods will be disposed of in HFC's discretion. HFC does not warrant the product to meet the requirements of any safety code of any state, municipality, or other jurisdiction, and Purchaser assumes all risk and liability whatsoever resulting from the use thereof, whether used singlely or in combination with other machines or apparatus. This warranty shall not apply to any HFC product or parts thereof, which have been repaired outside HFC's factory or altered in any way, or have been subject to misuse, negligence, or accident, or have not been operated in accordance with HFC's printed instructions or have been operated under conditions more severe than, or otherwise exceeding, those set forth in the specifications. ________________________________________________________________ FOR NON-WARRANTY REPAIRS OR CALIBRATIONS, consult HOFFER FLOW CONTROLS for current repair/calibration charges. Have the following information available BEFORE contacting HOFFER FLOW CONTROLS: 1. P.O. number to cover the COST of the repair/calibration, 2. Model and serial number of the product, and 3. Repair instructions and/or specific problems relative to the product. ________________________________________________________________

2. SPECIFICATIONS AND PRODUCT FEATURES-------7 2.1 General ---------------------------------------------------------- 7 2.2 Inputs ------------------------------------------------------------ 8 2.3 DC Power/Loop Powered------------------------------------ 8 2.4 Analog Output ------------------------------------------------- 9 2.5 Pulse Output---------------------------------------------------- 9 2.6 Alarm 1 and Alarm 2 ----------------------------------------- 9 2.7 Physical---------------------------------------------------------- 9 Product Features -------------------------------------------------------- 9 3. INSTALLATION----------------------------------------------- 11 3.1 4-20 mA Current Loop--------------------------------------13 3.2 Flowmeter Input----------------------------------------------15 3.3 Pulse Output---------------------------------------------------16 3.4 Alarm Outputs------------------------------------------------16 3.5 Wiring Summary---------------------------------------------18 4. CONFIGURATION-------------------------------------------- 19 4.1 Local Configuration -----------------------------------------19 4.2 Default Configuration ---------------------------------------22 5. OPERATION AND MAINTENANCE--------------------- 23 5.1 Display Parameters ------------------------------------------23 5.2 Saving Grand Total ------------------------------------------23 5.3 Clearing the Total --------------------------------------------23 5.4 System Response Time --------------------------------------24 5.5 Error Conditions ---------------------------------------------24 5.6 Battery Replacement Indication --------------------------25 6. HART COMMUNICATIONS ------------------------------- 27 6.1 Dynamic Variables-------------------------------------------27 6.2 Universal Commands----------------------------------------28 6.3 Common-Practice Commands-----------------------------28 6.4 Device-Specific Commands--------------------------------29 6.5 Device Status --------------------------------------------------31 6.6 Additional Device Status------------------------------------32 6.7 EDDL – Process Variables ---------------------------------35 6.8 EDDL – Device Diagnostics --------------------------------36 6.9 EDDL – Online -----------------------------------------------36 7. MAINTENANCE----------------------------------------------- 41

APPENDIX B – Declaration and Conformity----------------- 45 APPENDIX C – Installation Drawings and Conditions for Safe Use for Certified Systems------------------------------- 47

and totalizer with HART Field Communications Protocol. The instrument can accept a low-level signal from a magnetic type pickup coil, logic level pulse signal, or contact closure on the signal input. Pulses from the signal input are counted and converted into volume and rate values based on flowmeter calibration settings in the instrument. The total volume and flow rate is displayed on a two-line liquid crystal display (LCD). The top line is an 8-digit Total Volume display and the bottom is a 5-digit Rate display. A 4-20 mA analog signal proportional to the flowrate is output on the current loop. The HRT1 is configurable by way of the instrument keypad or via HART communications. Figure 1 – HRT1 Front Panel Overview Optional features include 20-point linearization to correct for flowmeter non-linearities, a Scaled Pulse Output and 2 Alarm Outputs configurable for Rate or Total. The instrument may be housed in a NEMA 4X polycarbonate enclosure, which may be wall mounted or directly mounted on a flowmeter using an optional riser. Other options include panel mount or an EX proof enclosure for hazardous areas.

Council of European Communities 89/336/EEC and the following standards: Generic Emission Standard EN 61000-6-3 Residential, Commercial & Light Industry Environment. Generic Immunity Standard EN 61000-6-1 Residential, Commercial & Light Industry Environment. Electrostatic discharge requirements EN 61000-4-2 Radiated, radio-frequency, electromagnetic immunity EN 61000-4-3 Electrical fast transient/burst requirements EN 61000-4-4 Immunity to conducted disturbances EN 61000-4-6

MODEL HRT1 FLOW RATE INDICATOR/TOTALIZER WITH HART® COMMUNICATIONS PROTOCOL MODEL HRT1-( A )-( B )-( C )-( D )-( E )-( F )-( G ) ENCLOSURE STYLE PULSE INPUT ANALOG OUTPUT PULSE OUTPUT ALARMS MOUNTING SPECIAL FEATURES ENCLOSURE STYLE MODEL HRT1-( A )-( )-( )-( )-( )-( )-( ) OPTION ( A ) (2) NEMA 4X ENCLOSURE (HRT1 MOUNTED BEHIND CLEAR COVER) (3*) ALUMINUM CASTING POWDER COATED ENCLOSURE (IP66) (P) PANEL MOUNT ENCLOSURE (IP40) (PD) PANEL MOUNT ENCLOSURE WITH CLEAR DOOR AND LOCK (IP40) (4) NEMA 1 ENCLOSURE (HRT1 MOUNTED TO THE OUTSIDE OF CLEAR COVER FOR DOOR/DRY INSTALLATION ONLY) (5) NEMA 4X ENCLOSURE/HRT1 ENCLOSURE (MOUNTED BEHIND CLEAR COVER WITH SUNSHADE) (7*) STAINLESS STEEL ENCLOSURE (IP66) (ALL CONDUIT PORTS ARE 3/4" FNPT) *OPTIONS FOR ENCLOSURE STYLE 3 AND 7: (_M) M20 CONDUIT THREAD (NOT ALLOWED FOR USE IN CANADA) (_S) SUNSHADE PULSE INPUT MODEL HRT1-( )-( B )-( )-( )-( )-( )-( ) OPTION ( B ) (M) MAGNETIC COIL, DRY PULSE CONTACT (R) ISOLATED PULSE, RPM, RPR, HALL EFFECT COILS

OPTION ( C ) (W) WIRED 4-20MA LOOP POWERED PULSE OUTPUT MODEL HRT1-( )-( )-( )-( D )-( )-( )-( ) OPTION ( D ) (5) 0-5 TTL/CMOS (OC) OPEN COLLECTOR (V) 8-30 VDC WITH PULLUP TO VDC+ ALARMS TWO OPTO-ISOLATED ALARMS WITH USER-DEFINED LEVELS FOR RATE AND/OR TOTAL MODEL HRT1-( )-( )-( )-( )-( E )-( )-( ) OPTION ( E ) (5) 0-5 TTL/CMOS (OC) OPEN COLLECTOR (V) 8-30 VDC WITH PULLUP TO VDC+ MOUNTING MODEL HRT1-( )-( )-( )-( )-( )-( F )-( ) OPTION ( F ) (F) NEMA 4X STYLE 2 ENCLOSURE MOUNTED ON TURBINE. MUST BE USED WITH “X” RISER TURBINE OPTION. (FHT) 8" LONG TEMPERATURE RISER FOR NEMA 4X STYLE 2 ENCLOSURES MOUNTED ON TURBINE. REQUIRED WHEN FLUID TEMPERATURES EXCEED 140 DEG. F. USED WITH “X” RISER TURBINE OPTION. (FX) STYLE 3 OR STYLE 7 ENCLOSURES MOUNTED ON TURBINE. MUST BE USED WITH “X” RISER TURBINE OPTION. (FXHT) 8" LONG TEMPERATURE RISER FOR STYLE 3 OR STYLE 7 ENCLOSURES MOUNTED ON TURBINE. REQUIRED WHEN TEMPERATURES EXCEEDS 140 DEG. F. USED WITH “X” RISER TURBINE OPTION. (NP) ENCLOSURE PIPE MOUNTING KIT; 2" PIPE OR SMALLER. SPECIFY IF PIPE IS VERTICAL OR HORIZONTAL.

(MX_) METER MOUNTED NOTE: USED WITH “X” RISER, AND 1" X ¾" SS ADAPTER. PROCESS TEMP -40°C TO +70°C. (MA_) METER MOUNTED NOTE: USE WITH A (X-ATEX) RISER. PROCESS TEMP -40°C TO +70°C. (RX_) REMOTE MOUNTED NOTE: USE WITH “X” RISER. INCLUDES “E2” JUNCTION BOX AND 1" X 3/4" SS ADAPTER. (RA_) REMOTE MOUNTED NOTE: USE WITH A (X-ATEX) RISER. INCLUDES “E2” JUNCTION BOX. UNION OPTIONS: (___U1) OPTIONAL 1" MALE X 1" FEMALE EX-PROOF UNION NOTE: USE WITH MX AND RX OPTIONS (___U2) OPTIONAL 3/4" MALE X 3/4" FEMALE EX-PROOF UNION NOTE: USE WITH MA AND RA OPTIONS EXPLOSION-PROOF ENCLOSURE RATINGS: Canada/US Zones Ex db IIB+H2 T6; Gb; Ex tb IIIC T72°C Db; IP66; Class I, Zone 1, AEx db IIB+H2 T6; Gb; Zone 21, AEx tb IIIC T72°C Db; IP66: ATEX/IECEX : II 2 G Ex db IIB+H2 T6 Gb II 2 D Ex tb IIIC T72°C Db IP66 T1-T6 = -40°C to +70°C SPECIAL FEATURES MODEL HRT1-( )-( )-( )-( )-( )-( )-( G ) OPTION ( G ) (CE) CE MARK REQUIRED FOR EUROPE (SP) ANY SPECIAL FEATURES THAT ARE NOT COVERED IN THE MODEL NUMBER, USE A WRITTEN DESCRIPTION OF THE -SP. (X) NO SPECIAL FEATURES.

HRT1 HP-313 2. SPECIFICATIONS AND PRODUCT FEATURES General Specifications 2.1 General Display: LCD, updated every 2.0 seconds. Total: 8 digits 0.26" high. Resettable using a magnet, a contact closure to power common on the RESET input terminal, from the front panel keypad or via HART communications. Total Units: GAL, LIT, FT3, M3, BBL, & “blank”. Grand Total: 8 digits 0.26" high, non-resettable. Value stored once per minute in non-volatile memory. Grand Total is displayed for 15 seconds after pressing the ▲ button. Rate: 5 digits 0.5" high. Rate Units: /SEC, /MIN, /HR, & /DAY K-factor: The pulses per unit of Total (e.g. pulses/gallon) are configurable in the range 0.001 to 99,999,999. Linearization: Up to 20 points. Decimal Points: Decimal Point positions are configurable for 0, .0, .00, or .000 for both rate and total. Accuracy: Total: 1 count, Rate: 0.01%

HP-313 HRT1 2.2 Inputs Magnetic Pickup: Frequency Range: 0.2 Hz to 5000 Hz. Signal Level: 30 mVP-P to 30 VP-P. Opto-Isolated DC Pulse: Frequency Range: 0 Hz to 3000 Hz. Signal Type: DC pulse. High (Logic 1): 4 to 30 VDC Low (Logic 0): < 1 VDC Min Pulse width: 0.1 msec Contact Closure: Frequency Range: 0 Hz to 5000 Hz Signal Type: Contact closure, Sig+ Terminal to DC common Internal Pull-up: 220 kΩ to +3.3 VDC Reset: Signal Type: Contact closure, Reset Terminal to DC common Min On: 25 msec Internal Pull-up: 100 kΩ to +3.3 VDC External Magnet: Activates internal reed switch 2.3 DC Power/Loop Powered Voltage: 8 to 30 VDC Current: < 24 mA Loop Burden: 8 VDC maximum Supply Backup: C size Lithium or battery pack for Ex system Battery Life: 8 months typical Protection: Reverse polarity protected

HRT1 HP-313 2.4 Analog Output Scale: 4 – 20 mA follows rate. Accuracy: 0.02% of Full Scale @ 20ºC. Temperature drift: 40 ppm/°C Update Time: 2.0 seconds. Connection: Two wire. Protection: Reverse polarity protected 2.5 Pulse Output Type: 0-5V TTL, 0-Supply Voltage, Open collector (30 VDC, 100 mA) Divider: 1, 10, 100, or OFF Rate & Duration: See below. Frequency (Hz): 1 2 4 8 On/Off (msec) 500 250 125 62.5 2.6 Alarm 1 and Alarm 2 Type: 0-5V TTL, 0-Supply Voltage, Open collector (30 VDC, 100 mA) Function: Rate or Total 2.7 Physical Temperature: Operating: -40°F (-40C) to 158°F (70C). Humidity: 0 – 90% Non-condensing. Packaging: NEMA 4X, Panel mount or Explosion proof Dimensions for NEMA 4X enclosure: 4.33" (110 mm) wide x 4.33" (110 mm) long 4.33" (110 mm) tall.

HRT1 HP-313 Product Features  HART Field Communications Protocol, Revision 7.0  LCD display  8-Digit Total display with configurable decimal point location  5-Digit Rate display with configurable decimal point location  8-Digit, Non-resettable Grand Total display  4-button membrane keypad  Pulse Input supports turbine as well as many other pulse generating flowmeters  Up to 20-Point Linearization to correct for flowmeter non-linearities  4-20 mA analog output proportional to flow rate  Optional Scaled Pulse Output representing an increment of volume for each pulse  2 Optional Alarm Outputs configurable for Rate or Total  Magnetically operated switch for Total reset  Internal battery backup  Configuration and Grand Total stored in non-volatile memory. Grand Total saved once per minute.

Connections are made to the HRT1 on two six-position terminal blocks, labeled as terminals 1-12 (Fig. 3.1). Connections are made to the terminal blocks using wire gauges 16-28 AWG, tightening Torque 0.22 to 0.25Nm. A ten-position DIP switch (SW2) located on the back of PCA186A provides a quick selection of various input/output options. The following pages illustrate connections and switch settings for various options. To make field wiring connections to the HRT1-4 option (NEMA 4X, front panel mounted on the outside of the clear cover), complete the following: 1. Loosen the four cover screws. 2. Remove the clear cover and HRT1 assembly. 3. Use a small flat blade screwdriver and turn counter-clockwise to loosen the proper terminal screw. 4. Insert wire and turn terminal screw clockwise to tighten. 5. Lightly pull on wire to ensure proper connection. For the HRT1-2 option (NEMA 4X, front panel mounted behind the clear cover): 1. Loosen the four cover screws and remove the clear cover. 2. Remove the four #4-40 x 5/16” black oxide screws from the corners of the panel and remove the HRT1 assembly. 3. Use a small flat blade screwdriver and turn counter-clockwise to loosen the proper terminal screw. 4. Insert wire and turn terminal screw clockwise to tighten. 5. Lightly pull on wire to ensure proper connection. For the HRT1-3 or HRT1-3A option (Explosion proof enclosure): 1. Unscrew the cover of the enclosure counter-clockwise until it separates from the body of the enclosure. 2. Remove the two #4-40 x 1” black oxide screws from the top left and bottom right section of the front panel. 3. Remove the HRT1 assembly from the mounting standoffs. 4. Use a small flat blade screwdriver and turn counter-clockwise to loosen the proper terminal screw. 5. Insert wire and turn terminal screw clockwise to tighten. 6. Lightly pull on wire to ensure proper connection. Warning: When contained in an Explosion-Proof enclosure, do not open the cover while circuits are live in hazardous atmospheres.

steps below to avoid twisting signal wires from pickup coil. 1. Remove the HRT1 electronics from the enclosure. 2. Disconnect the signal wires from the HRT1 electronics, if connected. 3. Mount/Thread the enclosure on the turbine flowmeter. 4. Reconnect the signal cable to the HRT1 unit.

The HRT1 is powered from a two-wire 4-20 mA current loop, in the voltage range of 8-30 Volts DC, depending on the loop resistance. One C-Size 3.6V Lithium or battery pack for Ex d system, is included as a backup power supply to ensure that volume accumulation will not be interrupted during a power failure. Switch 2 of SW-2 must be ON for loop power. Figure 3.1.1 – 4-20mA Loop Wiring and Switch Settings Figure 3.1.2 – Loop Load Limitations Operating Region 1 SW2 1 2 3 4 5 6 7 8 9 10 6 3 JP2 1 8 TB2 TB1 4 SW2 9 7 10 11 12 5 2 - + POWER SUPPLY 8-30 VDC Supply Voltage VS Load 0 200 400 600 800 1000 1200 0 5 10 15 20 25 30 Supply Voltage Load (Ohms)

proportional to the calculated flow rate. The 4mA and 20mA settings referred to as outLo and outHi respectively, may be configured from the front panel of the instrument or via HART communications. 3.2 Flowmeter Input The flowmeter input accepts a low-level sinusoidal signal from a magnetic type pickup coil, contact closure, or an isolated DC pulse signal. Switches 7, 8, 9 and 10 on SW-2 must be set according to the type of flowmeter input to be used. Proper switch settings will be made at the factory if the flowmeter input is specified at the time of order. SW-2 SWITCH SETTINGS FOR FLOWMETER INPUT OPTIONS: INPUT OPTION SW-2 SETTINGS Mag pickup / Contact Closure 7, 8 AND 9 ON (10 OFF) Isolated Redi-Pulse - TTL 10 ON (7, 8 AND 9 OFF) Isolated Redi-Pulse – Open-Collector 10 ON (7, 8 AND 9 OFF) Magnetic Pickup Coil/Contact Closure JP2 B 7 2 TB2 10 SIG IN - 11 1 4 SW2 SIG IN + 9 TB1 12 3 8 6 A Magnetic Pickup 5 Figure 3.2.1 – Magnetic Pickup/Contact Closure Wiring and Switch Settings SW2 1 2 3 4 5 6 7 8 9 10 NOTE: HART Communications requires a loop resistance between 250 and 1100 Ohms.

Requires 3-Wire Installation POWER SUPPLY 8-30 VDC 6 3 SIG IN - JP2 1 8 TB2 TB1 4 9 SW2 10 11 7 12 5 2 SIG IN + B A Redi-Pulse Pickup C + - Figure 3.2.2 – Isolated Redi-Pulse TTL Wiring and Switch Settings Isolated Redi-Pulse (Open Collector) Requires 3-Wire Installation POWER SUPPLY 8-30 VDC JP2 6 3 1 8 TB2 TB1 4 SW2 9 7 10 11 12 5 2 Redi-Pulse Pickup B A C + - Figure 3.2.3 – Isolated Redi-Pulse Open-Collector Wiring and Switch Settings 1 2 3 4 5 6 7 8 9 10 1 1 1 2 3 4 5 6 7 8 9 10

unit of measure scaled for the least significant digit of the displayed total. A scaling factor of 1, 10 or 100 is available to reduce or increase the resolution of the pulse output. For example, if the Total Decimal Point is set to 0000000.0, and the Pulse Scale is 1, then 1 pulse will be output for each tenth (0.1) of a unit of measure. Changing the Pulse Scale to 10, would result in an output pulse for each 1.0 unit of measure. The output must be scaled so that the pulse frequency does not exceed the Pulse Frequency setting (8 Hz. Max) at the maximum flow rate. The Pulse Output may be configured as an Open Collector, 0-5V (TTL) or Internal pullup to VDC+ using dip switch SW-2. SW-2 SETTINGS AND PROTECTION DIODE VALUE FOR PULSE OUTPUT OPTIONS: OPTION SW-2 SETTINGS TS1 OPEN COLLECTOR 6 OFF 36V TRANSORB TTL 6 ON 5.1V ZENER PULLUP TO VDC+ 6 ON 36V TRANSORB 6 3 JP2 1 8 TB2 PULSE OUTPUT + TB1 4 9 SW2 11 7 10 12 2 5 SW2-6 10K DC_IN(+) 11 PULSE OUTPUT + 12 Figure 3.3.1 – Pulse Output Wiring and Circuit Overview 3.4 Alarm Outputs HRT1 provides an optional Alarm Output feature, which includes 2 alarm outputs configurable for Rate or Total. The outputs may be configured as an Open Collector, 0-5V (TTL) or Internal pullup to VDC+.

OUTPUT OPTIONS: OPTION ALARM1 SW-2 SETTINGS ALARM1 TS5 ALARM2 SW-2 SETTINGS ALARM2 TS2 OPEN COLLECTOR 4 OFF 36V TRANSORB 5 OFF 36V TRANSORB TTL 4ON 5.1V ZENER 5 ON 5.1V ZENER PULLUP TO VDC+ 4 ON 36V TRANSORB 5 ON 36V TRANSORB Figure 3.4.1 – Alarm Outputs Circuit Overview JP2 6 3 1 ALARM2 OUTPUT + 8 TB2 ALARM1 OUTPUT + TB1 4 9 SW2 10 11 7 12 5 2 Figure 3.4.2 – Alarm Outputs Wiring SW2-4 10K DC_IN(+) ALARM 1 7 9 10 ALARM 2 8 SW2-5 10K DC_IN(+)

all input and output signals. The shield should be connected to the chassis ground lug on the HRT1. The shield on the opposite end of the cable should be left open. This wiring practice is mandatory in order to comply with the requirements for Electromagnetic Compatibility, as per EMC-Directive 89/336/EEC of the Council of European Community.

non-volatile memory. The instrument may be configured locally using the front panel keys or remotely via a HART communicator. 4.1 Local Configuration Each consecutive press moves to the next menu item. The functions for each button in the configuration mode are described below. The following table outlines all menu items in the configuration mode: Display Option Menu item Description CLEArtot no Yes No Clear Total Clears accumulated total and sets TOTAL display to zero. 10000000 tA9 Tag Number User defined 8-digit serial number. AuErAgE FAC NN Linear Average Linearization Method Sets the flow calculation method to average K-factor or K-factor table. 00000.000 FAC d 00000000 0000000.0 000000.00 00000.000 K-factor Decimal Point Set K-factor decimal point location. The local configuration mode is entered by pressing the P button. Press for next menu item. Press to edit selection and to accept selection. Press to move cursor one position to the right. Press to increment digit or change selection. P OK

1.000 A FAC 8-digit number Average K-factor Enter average K-factor. PointS 20 2 to 20 Number of Points Sets the number of entries in the linearization table. 4999.981 Fr 01 0 to 5000 Frequency 1-20 Enter a frequency in Hz for each entry in the table. Decimal point is fixed. 1.000 FAC01 8-digit number K-factor 1-20 Enter a k-factor in pulses/gal for each entry in the table. 1.000 C FAC 0.001 to 99999.999 Correction Factor User defined number between 0.001 and 99999.999 to multiply flow and total. Default 1.0. tot unit 100 100 = GAL 110 = FT3 140 = LIT 150 = M3 180 = BBL Total Units Select Total units. If custom is selected all indicators are off. (gal, lit, ft3, m3, bbl, custom) 0000000.0 tot d 00000000 0000000.0 000000.00 00000.000 Total Decimal Point Set Total decimal point location. FLo u NN in SEC Min HrS dAY Rate Units Select RATE units. 00000.000 FL d 00000000 0000000.0 000000.00 00000.000 Rate Decimal Point location Set Rate decimal point location.

SAPLE 1 1 to 80 Max Sample Time Set maximum time in tenths of a second to sample the input frequency. This setting determines the amount of time the HRT1 will wait for the next input pulse before returning to 0. For example, 80 = 8 seconds. Default is 1. Changing this setting is only recommended for low flow applications below 1 Hz. 1.000 outLo Out Low Sets flow rate value for 4 mA output. 99.999 outHi Out High Sets flow rate value for 20 mA output. PuLSE S oFF oFF 1 10 100 Pulse Scale Sets scale for pulse out. 1, 10, 100 units of total for one pulse out. Pulses are scaled according to the least significant digit of the displayed total. For example, if Total Decimal places is set to 0000000.0, and Pulse Scale is 1, then 1 pulse is output for each tenth (0.1) of a unit. Changing the Pulse Scale to 10 would output one (1) pulse for every 1.0 unit of volume. OFF- turns pulse out off. PuLSE F 8 1 2 4 8 Pulse Frequency Sets frequency of burst of pulse out. (1, 2, 4, 8) PASS 1234 0000 to 9999 Password Sets 4-digit password. Default 0000. unit LoC no Yes No Lock Unit Locks the unit. Password entry is required to unlock the unit or make any configuration changes after the unit is locked.

ALNN 1 oFF oFF rAtE tot Alarm1 Function Select Rate or Total for alarm output. OFF- turns alarm function off. 100000.0 ALNN 1 Alarm1 Value Sets value to activate the alarm output. Default 99999.999 ALNN 2 OFF oFF rAtE tot Alarm2 Function Select Rate or Total for alarm output. OFF- turns alarm function off. 100000.0 ALNN 2 Alarm2 Value Sets value to activate the alarm output. Default 99999.999 0.0 Set t Set Total Sets Total to user defined value. Grand Total is not affected. Cur out rAtE rAtE 4 12 20 Current Out Sets analog output to follow rate or a predefined level for loop diagnostics. PuL test no Yes No Pulse Output Test Outputs a test frequency of 1Hz, 50% duty cycle. AL 1 test no Yes No Alarm1 Output Test Activates alarm1 output. AL 2 test no Yes No Alarm2 Output Test Activates alarm2 output. 4.2 Default Configuration HRT1 is fully configured by the factory prior to shipment. When the instrument is purchased with a Hoffer Flowmeter or when calibration and configuration data are supplied, the instrument is configured as specified. When calibration or configuration data is not available, the instrument is shipped with default values. Refer to Appendix A for a listing of the HRT1 factory default configuration.

HRT1 HP-313 5. OPERATION AND MAINTENANCE 5.1 Display Parameters The HRT1 calculates and displays total volume and flow rate on a two-line liquid crystal display (LCD). The top line is an 8-digit Total Volume display and the bottom is a 5-digit Rate display. The 8-digit non-resettable Grand Total is also viewed on the top line by pressing The Grand Total will be displayed for approximately 15 seconds before returning to the Total Volume display. Volume units and the time base for flow rate are indicated by icons on the right hand side of the LCD. When no icon for time units is displayed, the time base is /SEC. A Bar graph located at the bottom of the LCD provides a graphical representation of the flow rate based on a percentage of the maximum flow setting. The flow rate and flow total are calculated and updated on the display once every 2 seconds. 5.2 Saving Grand Total To minimize the number of write cycles to non-volatile memory, the Grand Total is saved once per minute. In the event that both loop power and battery power are removed simultaneously, the Total will be lost and the Grand Total could be up to one minute old when restoring power. When changing the battery (see Section 7 Maintenance), it is recommended to stop the flow at least two minutes prior to removing power from the unit to ensure that the stored Grand Total is current when restoring power. 5.3 Clearing the Total The Volume Total may be cleared by using a magnet, a contact closure to power common on the RESET input terminal, from the front panel keypad or via HART communications (See Chapter 6 HART Communications).

HP-313 HRT1 To clear the total using a magnet, slide the magnet slowly across the HRT1 model name at the top of the front panel overlay. To reset the total from the front panel keypad, use the following key sequence: Press P CLEArtot is displayed Press OK To enter edit mode. Press ▲ To select yes Press OK To clear total Press ▲ To return to operating mode 5.4 System Response Time The displayed Rate and Total are updated every two seconds. The analog output response time to reach steady state due to a change in the input is also approximately two seconds. The time for the display to reach 0 and for the analog output to return to 4 mA when flow stops will be between 3 and 12 seconds, depending on the Max Sample Time setting (MST). Changing the MST is only recommended for low flow applications where the input frequency is below 1 Hz. See Chapter 4 Configuration for more information on Max Sample Time. 5.5 Error Conditions The HRT1’s self-checking capability is used to detect and report malfunctions by displaying error messages on the LCD. When an error occurs, the display will flash an error message until the error condition is eliminated, or the user presses the OK button to acknowledge the condition. Once the error condition has been acknowledged by pressing OK, the error message will stop flashing. The message will be displayed again after 60 seconds if the condition that caused the error has not been resolved. The message will automatically stop flashing and any associated alarms reset once the error condition is no longer present.

HRT1 HP-313 The following table outlines the detected conditions and recommended corrective action: ERROR MESSAGE CAUSE CORRECTIVE ACTION EPuLSE Pulse output exceeds Pulse Frequency setting. Output pulses will stop during this condition. - Change pulse scale. - Increase Pulse Frequency setting(Max 8 Hz). - Reduce the number of places after the Total decimal point. EErES EEPROM reset to factory defaults. Consult factory ErAtE Flow rate exceeds the flow rate display capability. Displayed flow rate will consist of all 9s. Reduce flow rate or reduce the number of places after the flow rate decimal point EFLo Flow rate exceeds the 20 mA max flow setting. Analog output will saturate at 24 mA. Reduce flow rate or increase the 20 mA max flow setting. LO BAT Low battery. Replace battery 5.6 Battery Replacement Indication The instrument has circuitry designed to monitor the battery voltage and illuminate a LO BAT message on the LCD when the battery is approaching the end of its life. When changing the battery, it is recommended to stop the flow at least two minutes prior to removing power from the unit to ensure that the stored Grand Total is current when restoring power (see section 5.2 Saving Grand Total). See Section 7 Maintenance for detailed instructions on battery replacement.

HRT1 HP-313 6. HART COMMUNICATIONS The HRT1 has been designed to comply with Revision 7.0 of the HART protocol. A full list of features new to Revision 7.0 may be obtained at the Hart Communication Foundation website. A HART Communicator or HART Master may be used to configure, monitor process variables and obtain diagnostic information from the HRT1. The instrument must be equipped with the HART Modem Board (PCA187), which plugs into a 10-pin connector on the backside of the HRT1 Main Board (PCA186). Refer to Chapter 3 Installation for information on connections to HART devices. HART functions are defined as part of an enhanced device description language (EDDL). Contact the factory if the HRT1 device is not available in the list of DD libraries. 6.1 Dynamic Variables The following Dynamic Variables have been implemented: Meaning Units Primary Variable Flow Rate Volume - Gal, Lit, Ft3, M3, Bbl, Custom Time - /Day, /Hour, /Min, /Sec Secondary Variable Flow Total Follows PV Volume units Tertiary Variable Grand Total Follows PV Volume units Quaternary Variable Frequency Hz The HRT1 may be identified by the following: Manufacturer ID Code: 224 (E0 Hex) Device Type Code: 161 (A1 Hex)

HP-313 HRT1 6.2 Universal Commands The following Universal Commands have been implemented: 0 Read Unique Identifier 1 Read Primary Variable 2 Read Primary Variable Current and Percent Range 3 Read Dynamic Variables and Primary Variable Current 6 Write Polling Address 7 Read Loop Configuration 8 Read Dynamic Variable Classifications 9 Read Device Variables with Status 11 Read Unique Identifier with Tag 12 Read Message 13 Read Tag Descriptor Date 14 Read Primary Variable Sensor Info 15 Read Primary Variable Output Info 16 Read Final Assembly Number 17 Write Message 18 Write Tag Descriptor Date 19 Write Final Assembly Number 20 Read Long Tag 21 Read Unique identifier with Long Tag 22 Write Long Tag 6.3 Common-Practice Commands The following Common-Practice Commands have been implemented: 35 Write Range Values 38 Reset "Configuration Changed" Flag 40 Enter/Exit Fixed Current Mode 42 Perform Master Reset 45 Trim DAC Zero 46 Trim DAC Gain 48 Read Additional Device Status

HRT1 HP-313 6.4 Device-Specific Commands The following Device-Specific Commands have been implemented: # COMMAND DESCRIPTION 128 Read Decimal Point Location Read the decimal point location for Rate and Total. 129 Write Rate Decimal Point Location Select displayed flow rate resolution as 00000, 0000.0, 000.00 or 00.000. 130 Write Total Decimal Point Location Select displayed total resolution as 00000000, 0000000.0, 000000.00 or 00000.000. 131 Clear Total Reset the Total to zero. 132 Set Total Set the Total to a user defined value. 133 Read Linearization Variables Read the flowmeter linearization parameters. 134 Write Linearization Set flowmeter linearization method as Average K-Factor or Linearization Table. 135 Write K-Factor Decimal Point Select k-factor resolution as 00000000, 0000000.0, 000000.00 or 00000.000. 136 Write Average-K Factor Write the value of the Average K-Factor. Valid entries are between 0.001 and 99999999. 137 Write Number of Points Write the number of points in the Linearization Table. 20 is the max number of points. 138 Write Correction Factor Write the value of the Correction Factor. The correction factor is a multiplier used to correct flow rate and total. 139 Read Linearization Table Read the flowmeter Linearization Table. 140 Write Linearization Frequency Write the Frequency values for the linearization table points.

HP-313 HRT1 # COMMAND DESCRIPTION 141 Write Linearization K-Factor Write the K-Factor values for the linearization table points. 142 Read Pulse Information Read Pulse Scale and Pulse Frequency information. 143 Write Pulse Scale Set the Pulse Scale to 1, 10, 100 or OFF. 144 Write Pulse Frequency Set the frequency in Hz. of the pulse output burst to 1, 2, 4 or 8. 145 Pulse Output Control Stop 1 Hz Pulse Output Test. 146 Pulse Output Test Start 1Hz Pulse Output Test. 147 Read Alarm Info Read Function and Level for Alarm 1 and 2. 148 Write Alarm Function Define the function of the Alarm Output as Rate or Total. 149 Write Alarm Level Write the value at which an alarm condition is indicated. 150 Alarm Release Release the Alarm Output test. 151 Alarm Test Activate Alarm Output. 152 Read Tag Read Tag Number. 153 Write Tag Write Tag Number. 0 to 99999999. 154 Read Sample Time Read Sample Time. 155 Write Sample Time Write Sample Time. Valid entries 1-80. 156 Write Password Write 4-digit password. 9999 is max value. 157 Read Lock Status Read Lock Status. Password is required when unit is locked. 158 Write Lock Unit Lock the unit and enable password protection. 159 Read Current Mode Read mode for analog output current (4mA, 12mA, 20mA, Follows Rate).

HRT1 HP-313 # COMMAND DESCRIPTION 160 Write Current Mode Write mode for analog output current (4mA, 12mA, 20mA, Follows Rate). 161 Read Units Read units for volume total and rate. 162 Write Flow Rate Time Write units for flow rate time base (/Sec, /Min, /Hr, /Day). 163 Write Total Units Write units for volume total (GAL, FT3, L, M3, BBL). 6.5 Device Status The following Status Bits are implemented: Bit 0 - Primary Variable Out Of Limits Bit 1 - Non-Primary Variable Out Of Limits Bit 2 - Primary Variable Analog Output Saturated Bit 3 - Primary Variable Analog Output Fixed Bit 4 - More Status Available Bit 5 – Cold Start Bit 6 – Configuration Changed Bit 7 – Device Malfunction

HP-313 HRT1 6.6 Additional Device Status The following Additional Device Status Bits are implemented: Byte Bit Meaning 0 Unused 1 Unused 2 Pulse Output Overflow 3 Flow Over range 4 Flow Rate Display Too High 5 DAC Zero Not Calibrated 6 DAC Gain Not Calibrated 0 7 Bit Current Override 0 Total Units Error 1 Rate Time Units Error 2 Linearization Function Error 3 K-Factor Decimal Point Error 4 Number of Points Error 5 Total Decimal Point Error 6 Rate Decimal Point Error 1 7 Sample Time Error 0 Unused 1 Unused 2 Unused 3 Pulse Scale Error 4 Pulse Frequency Error 5 Unit Locked 6 Alarm 2 Function Error 2 7 Alarm 1 Function Error

HRT1 HP-313 Byte Bit Meaning 0 Unused 1 Unused 2 Unused 3 Unused 4 Unused 5 Pulse Output Test 6 Alarm 2 Test 3 7 Alarm 1 Test 0 Unused 1 Unused 2 Unused 3 Unused 4 Unused 5 Unused 6 Alarm 2 Activated 4 7 Alarm 1 Activated 0 Unused 1 Unused 2 Unused 3 Unused 4 Unused 5 Unused 6 Unused 5 7 Unused 0 Maintenance Required 1 Device Variable Alert 2 Critical Power Failure 3 Unused 4 Unused 5 Unused 6 Unused 6 7 Unused

HP-313 HRT1 Byte Bit Meaning 0 Unused 1 Unused 2 Unused 3 Unused 4 Unused 5 Unused 6 Unused 7 7 Unused 0 Simulation Active 1 Non-Volatile Memory Defect 2 Volatile Memory Defect 3 Watchdog Reset Executed 4 Voltage Conditions Out of Range 5 Environment Conditions Out of R 6 Electronic Defect 8 7 Unused

HRT1 HP-313 6.7 EDDL – Process Variables Primary Variables  Flow Rate – Display of currently measured volumetric flow with units selected.  Flow Rate Loop Current – Display of current value of analog output (4-20 mA) based on flow rate.  Flow Rate % rnge – Display of current % of flow rate range.  Flow Rate LRV – Display of Lower Range Value for 4 mA flow setting.  Flow Rate URV – Display of Upper Range Value for 20 mA flow setting.  Total – Display of currently measured volumetric flow total with units selected.  Grand Total - Display of currently measured grand total with units selected.  Frequency – Display of currently measured flowmeter input frequency in Hz Identification  Tag – Assign HART Tag to device  Long Tag – Assign long HART Tag to device  Manufacturer – Display HOFFER FLOW CNTRLS  Model – Display HRT1  Dev id – Display ID number associated with device.  PV Snsr s/n – Display of serial number for Primary Variable sensor.

HP-313 HRT1 6.8 EDDL – Device Diagnostics Warning  Alarm 1 Being Tested – Indicates Alarm Output 1 is in test mode.  Alarm 2 Being Tested – Indicates Alarm Output 2 is in test mode.  Pulse Output Being Tested – Indicates Pulse Output is in test mode.  Alarm 1 Activated – Indicates an alarm has occurred in response to a condition assigned to Alarm 1 output.  Alarm 2 Activated – Indicates an alarm has occurred in response to a condition assigned to Alarm 2 output.  Flow Rate Exceeds Display - Flow rate exceeds the flow rate display capability. Displayed as ErAtE on the HRT1 LCD display. See section 5.5 Error Conditions for more information.  Flow Exceeds 20 mA Calibration - Flow rate exceeds the 20 mA flow rate upper range value (URV). Analog output will saturate at 24 mA. Displayed as EFLo on the HRT1 LCD display. See section 5.5 Error Conditions for more information.  Pulse Rate Overflow - Pulse output exceeds Pulse Frequency setting. Output pulses will stop during this condition. Displayed as EPuLSE on the HRT1 LCD display. See section 5.5 Error Conditions for more information. 6.9 EDDL – Online Device Setup  HRT1 Tag – Assign HRT1 serial number  Max Sample Time – Assign the maximum time in tenths of a second to sample the input frequency. This setting determines the amount of time the HRT1 will wait for the next input pulse before returning to 0. Valid entry is 1-80, with 80 = 8 seconds. Default is 1. Changing this setting is only recommended for low flow applications below 1 Hz. See section 4.1 Local Configuration for more information.

HRT1 HP-313  Change Lock Status – Enable password protection by selecting YES, disable by selecting NO.  Password – Assign a 4-digit password. Flow Setup  Rate Units – Select SECONDS, MINUTES, HOURS or DAYS for flow rate units.  Lower Flow Rate for 4 mA output (LRV) – Assign flow rate for 4 mA output.  Upper Flow Rate for 20 mA output (URV) – Assign flow rate for 20 mA output.  Rate Decimal Point – Select displayed flow rate resolution as 00000, 0000.0, 000.00 or 00.000. Total Setup  Clear Total – Select YES to clear Total (Grand Total is non- resettable)  Set Total – Write a specific value to Total.  Units – Select L, M3, GAL, BBL, FT3 OR “BLANK”(custom) for Total units.  Total Decimal Point – Select displayed total resolution as 00000000, 0000000.0, 000000.00 or 00000.000. Outputs Setup Pulse Output  Pulse Scale – Select OFF, 1, 10 or 100. Pulses are scaled according to the least significant digit of the displayed total. For example, if Total Decimal places is set to 0000000.0, and Pulse Scale is 1, then 1 pulse is output for each tenth (0.1) of a unit. Changing the Pulse Scale to 10 would output one (1) pulse for every 1.0 unit of volume. OFF turns Pulse Output off.

HP-313 HRT1  Pulse Frequency – Select 1, 2, 4 or 8 to select the frequency in Hz. of the pulse output burst.  Pulse Test – Outputs a test frequency of 1 Hz / 50% duty cycle on the pulse output terminals. Analog Setup  Current Mode – Select FOLLOWS RATE or SET TO 4 mA, 12 mA, or 20 mA.  D/A trim – Calibrate the analog output 4 mA and 20 mA reading with a reference meter connected.  Loop Test – Set analog output to fixed mode by selecting 4 mA, 20 mA or OTHER. Alarm 1  Alarm 1 Function – Select TOTAL, RATE or OFF.  Alarm 1 Out – Numeric entry to assign an alarm threshold.  Set Alarm 1 ON – Toggle Alarm 1 Output to test. Alarm 2  Alarm 2 Function – Select TOTAL, RATE or OFF.  Alarm 2 Out – Numeric entry to assign an alarm threshold.  Set Alarm 2 ON – Toggle Alarm 2 Output to test. Meter Setup  Linearization – Select AVERAGE K-FACTOR to use a single K-Factor or LINEARIZATION TABLE to enter up to 20 points.  K-Factor Decimal Point Location - Select k-factor resolution as 00000000, 0000000.0, 000000.00 or 00000.000

HRT1 HP-313  Number of Points in Table – Select the number of points (1- 20) in the table when LINEARIZATION TABLE is selected.  Frequency/K-Factor – Enter Frequency and K-Factors for each point in table.  Average K-Factor – Enter Average K-Factor when AVERAGE K-FACTOR is selected for Linearization.  Correction Factor – User defined flow total multiplier between 0.001 and 99999.999. HART Setup  Poll Addr – (Polling address) Assign a number between 0-15 to be used in multidrop applications.  Date – Enter the Date  Descriptor – Enter a descriptor  Message – Enter a message  Final asmbly num – Enter Assembly number.

HRT1 HP-313 7. MAINTENANCE The only maintenance for the HRT1 is a possible battery replacement after several years in service. All configuration settings are stored in nonvolatile memory; therefore, configuration settings will not be lost in the event of battery failure. Lithium Battery Pack Replacement WARNING: To prevent ignition of hazardous atmospheres, do not remove the cover unless the area is void of combustible gas and vapors. Replace the batteries only with battery part number 100-2732 for Ex systems. WARNING: The lithium battery that powers the HRT1 is a sealed unit; however, should Lithium batteries develop a leak, toxic fumes could escape upon opening the enclosure. Ensure that the instrument is in a well-ventilated area before opening the enclosure to avoid breathing fumes trapped inside the enclosure. Exercise caution in handling and disposing of spent or damaged batteries. Important: Before replacing the lithium battery stop the flow for at least two minutes prior to removing power from the unit to ensure that the stored Grand Total is current when restoring power. See Section 5.2 Saving Grand Total. The lithium battery is secured inside the enclosure by a Velcro straps and connected to a connector (JP2) near the top of the circuit assembly. To replace a lithium battery pack in the HRT1, perform the following steps: Ex Proof Enclosure: 1. Loosen the cover set screw and unscrew the cover of the enclosure counter-clockwise until it separates from the main body of the enclosure. 2. Using a small standard blade screwdriver, remove the two #4-40 screws located to the lower right and upper left side of the LCD display.

HP-313 HRT1 3. Lift the display/keypad assembly from the enclosure, making sure the circuit assembly does not contact the enclosure. 4. Loosen the Velcro straps, disconnect the battery from the JP2 connector on the circuit assembly, and remove the battery from the enclosure. 5. Install the new battery in the enclosure in the same position as the original battery, and secure the Velcro straps tightly around the battery. 6. Connect the replacement battery to the JP2 connector. 7. Place the circuit assembly over the standoffs and fasten with the two #4-40 screws, ensuring that all connector wiring is inside the enclosure. 8. Replace the enclosure cover, threading it onto the enclosure in a clockwise direction. NEMA Enclosure: 1. Loosen, by turning counter-clockwise, the screws in each corner of the enclosure cover to remove. 2. Remove four #4-40 screws from the front panel by turning counter-clockwise. 3. Lift the display assembly from the enclosure. 4. Loosen the Velcro strap, disconnect the battery from the JP2 connector on the circuit assembly, and remove the battery from the enclosure. 5. Install the new battery in the enclosure in the same position as the original battery, and secure the Velcro tightly around the battery. 6. Connect the replacement battery to the JP2 connector. 7. Replace the display assembly and enclosure cover. Battery shelf life is estimated at 10 years at a storage temperature of 25° C.

HRT1 HP-313 APPENDIX A – Default Configuration Factory default configuration: FIELD Value TAG 10000000 LINEARIZATION METHOD Average K-FACTOR DECIMAL LOCATION 3 AVERAGE K-FACTOR 1.00 NUMBER OF POINTS 20 FREQUENCY 01 4999.981 FREQUENCY 02 4999.982 FREQUENCY 03 4999.983 FREQUENCY 04 4999.984 FREQUENCY 05 4999.985 FREQUENCY 06 4999.986 FREQUENCY 07 4999.987 FREQUENCY 08 4999.988 FREQUENCY 09 4999.989 FREQUENCY 10 4999.990 FREQUENCY 11 4999.991 FREQUENCY 12 4999.992 FREQUENCY 13 4999.993 FREQUENCY 14 4999.994 FREQUENCY 15 4999.995 FREQUENCY 16 4999.996 FREQUENCY 17 4999.997 FREQUENCY 18 4999.998 FREQUENCY 19 4999.999 FREQUENCY 20 5000.000 K-FACTOR 01 1.00 K-FACTOR 02 1.00 K-FACTOR 03 1.00 K-FACTOR 04 1.00 K-FACTOR 05 1.00 K-FACTOR 06 1.00 K-FACTOR 07 1.00 K-FACTOR 08 1.00 K-FACTOR 09 1.00 K-FACTOR 10 1.00 K-FACTOR 11 1.00 K-FACTOR 12 1.00

HP-313 HRT1 K-FACTOR 13 1.00 K-FACTOR 14 1.00 K-FACTOR 15 1.00 K-FACTOR 16 1.00 K-FACTOR 17 1.00 K-FACTOR 18 1.00 K-FACTOR 19 1.00 K-FACTOR 20 1.00 CORRECTION FACTOR 1.000 TOTAL UNITS 100 (GAL) RATE UNITS MINUTES MAX SAMPLE TIME 01 OUT LOW (LRV–4MA) 00000.000 OUT HIGH (URV–20 MA) 99.999 PULSE SCALE 0 (OFF) PULSE FREQENCY 8 ALARM 1 FUNCTION Off ALARM 1 SETPOINT 99999.981 ALARM 2 FUNCTION Off ALARM 2 SETPOINT 99999.981 CURRENT OUT FOLLOWS RATE PULSE TEST No ALARM 1 TEST No ALARM 2 TEST No

HRT1 HP-313 APPENDIX B – Declaration of Conformity

for Safe Use for Certified Systems HRT1 HP-313 APPENDIX C Installation Drawings and Conditions for Safe Use for Certified Systems

for Safe Use for Certified Systems HP-313 HRT1

for Safe Use for Certified Systems HRT1 HP-313

for Safe Use for Certified Systems HP-313 HRT1

for Safe Use for Certified Systems HRT1 HP-313

for Safe Use for Certified Systems HP-313 HRT1

for Safe Use for Certified Systems HRT1 HP-313

for Safe Use for Certified Systems HP-313 HRT1

for Safe Use for Certified Systems HRT1 HP-313

for Safe Use for Certified Systems HP-313 HRT1

for Safe Use for Certified Systems HRT1 HP-313

for Safe Use for Certified Systems HP-313 HRT1

for Safe Use for Certified Systems HRT1 HP-313