Omega RH32 Series Basic Instructions

U.S.A.: Omega Engineering, Inc., One Omega Drive, P.O. Box 4047 ISO 9001 Certified Stamford, CT 06907-0047 USA Toll Free: 1-800-826-6342 TEL: (203) 359-1660 FAX: (203) 359-7700 e-mail: [email protected] Canada: 976 Bergar Laval (Quebec), Canada H7L 5A1 Toll-Free: 1-800-826-6342 TEL: (514) 856-6928 FAX: (514) 856-6886 e-mail: [email protected] For immediate technical or application assistance: U.S.A. and Canada: Sales Service: 1-800-826-6342/1-800-TC-OMEGA® Customer Service: 1-800-622-2378/1-800-622-BEST® Engineering Service: 1-800-872-9436/1-800-USA-WHEN® Mexico: En Español: 001 (203) 359-7803 FAX: (001) 203-359-7807 [email protected] e-mail: [email protected] Servicing Europe: Benelux: Managed by the United Kingdom Office Toll-Free: 0800 099 3344 TEL: +31 20 347 21 21 FAX: +31 20 643 46 43 e-mail: [email protected] Czech Republic: Frystatska 184 733 01 Karviná, Czech Republic Toll-Free: 0800-1-66342 TEL: +420-59-6311899 FAX: +420-59-6311114 e-mail: [email protected] France: Managed by the United Kingdom Office Toll-Free: 0800 466 342 TEL: +33 (0) 161 37 29 00 FAX: +33 (0) 130 57 54 27 e-mail: [email protected] Germany/Austria: Daimlerstrasse 26 D-75392 Deckenpfronn, Germany Toll-Free: 0 800 6397678 TEL: +49 (0) 7059 9398-0 FAX: +49 (0) 7056 9398-29 e-mail: [email protected] United Kingdom: OMEGA Engineering Ltd. ISO 9001 Certified One Omega Drive, River Bend Technology Centre, Northbank Irlam, Manchester M44 5BD England Toll-Free: 0800-488-488 TEL: +44 (0)161 777-6611 FAX: +44 (0)161 777-6622 e-mail: [email protected] OMEGAnet® Online Service Internet e-mail omega.com [email protected] It is the policy of OMEGA Engineering, Inc. to comply with all worldwide safety and EMC/EMI regulations that apply. OMEGA is constantly pursuing certification of its products to the European New Approach Directives. OMEGA will add the CE mark to every appropriate device upon certification. The information contained in this document is believed to be correct, but OMEGA accepts no liability for any errors it contains, and reserves the right to alter specifications without notice. WARNING: These products are not designed for use in, and should not be used for, human applications.

period of 13 months from date of purchase. OMEGA’s WARRANTY adds an additional one (1) month grace period to the normal one (1) year product warranty to cover handling and shipping time. This ensures that OMEGA’s customers receive maximum coverage on each product. If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer Service Department will issue an Authorized Return (AR) number immediately upon phone or written request. Upon examination by OMEGA, if the unit is found to be defective, it will be repaired or replaced at no charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser, including but not limited to mishandling, improper interfacing, operation outside of design limits, improper repair, or unauthorized modification. This WARRANTY is VOID if the unit shows evidence of having been tampered with or shows evidence of having been damaged as a result of excessive corrosion; or current, heat, moisture or vibration; improper specification; misapplication; misuse or other operating conditions outside of OMEGA’s control. Components in which wear is not warranted, include but are not limited to contact points, fuses, and triacs. OMEGA is pleased to offer suggestions on the use of its various products. However, OMEGA neither assumes responsibility for any omissions or errors nor assumes liability for any damages that result from the use of its products in accordance with information provided by OMEGA, either verbal or written. OMEGA warrants only that the parts manufactured by it will be as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESS OR IMPLIED, EXCEPT THAT OF TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF LIABILITY: The remedies of purchaser set forth herein are exclusive, and the total liability of OMEGA with respect to this order, whether based on contract, warranty, negligence, indemnification, strict liability or otherwise, shall not exceed the purchase price of the component upon which liability is based. In no event shall OMEGA be liable for consequential, incidental or special damages. CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in medical applications or used on humans. Should any Product(s) be used in or with any nuclear installation or activity, medical application, used on humans, or misused in any way, OMEGA assumes no responsibility as set forth in our basic WARRANTY/ DISCLAIMER language, and, additionally, purchaser will indemnify OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the Product(s) in such a manner. RETURN REQUESTS/INQUIRIES Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN (AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID PROCESSING DELAYS). The assigned AR number should then be marked on the outside of the return package and on any correspondence. The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent breakage in transit. FOR WARRANTY RETURNS, please have the following information available BEFORE contacting OMEGA: 1. Purchase Order number under which the product was PURCHASED, 2. Model and serial number of the product under warranty, and 3. Repair instructions and/or specific problems relative to the product. FOR NON-WARRANTY REPAIRS, consult OMEGA for current repair charges. Have the following information available BEFORE contacting OMEGA: 1. Purchase Order number to cover the COST of the repair, 2. Model and serial number of the product, and 3. Repair instructions and/or specific problems relative to the product. OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords our customers the latest in technology and engineering. OMEGA is a registered trademark of OMEGA ENGINEERING, INC. © Copyright 2009 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied, reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without the prior written consent of OMEGA ENGINEERING, INC.

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Request to instrumentation manufacturers, installation contractors, and sales agents Make sure to deliver this instruction manual to the operator of this “Temperature/humidity meter”. Request to the operator of this temperature/humidity meter This instruction manual is necessary for maintenance, too. Keep this manual with due care until this “Temperature/humidity meter” is discarded． Notices Please read this instruction manual for using this “Temperature/humidity meter” correctly and safely. 1. The descriptions of this manual are subject to change without notice. 2. If a question has arisen or if an omission was found in this manual, please contact your nearest OMEGA’s agent. 3. We are not responsible for any results by operation of this “Temperature/humidity meter”.

Vol. 2 [Function instructions]. This instruction manual is Vol. 1 [Basic instructions]. For “Measurement and data storage”, “Stored data reading” and “Parameter programming”, etc., refer to Vol. 2 [Function instructions].  [Auto-power-off function] For avoiding the comsumption of the batteries, the auto-power-off function of this “temperature/humiditymeter” has been set at ON (active) as a factory default setting. If no key is pressed for 1 minute, the continuous measurement will automatically stop and the mode will move to the clock mode. For setting of the auto-power-off function to OFF: Press DISP key to go to the continuous measurement mode ( Ref. [1.1Continuous measurement] and then press DISP key again for about 2 seconds to go to the programming mode. In the programming mode, press DISP key several times to go to the auto-power-off selection mode with “Auto” lit in the sub display. In the auto-power-off selection mode, “on” (active) will flash in the main display 2. For releasing the auto-power-off function, select “oFF” (release) by pressing ∧ key or ∨ key. Press ENT key to retain “oFF” selected. The flashing of “oFF ”will stop.  For the RS-232C communications with Model RH32-C2 (RS-232C communications type), the use of the AC power adapter (RH32-AC110 - sold separately) is recommended to avoid the consumption of the batteries.  Also, for the RS-485 communications with Model RH32-C4 (RS-485 communications type), make sure to use the AC power adapter (RH32-AC110 - sold separately) as the batteries will be consumed very rap- idly. READ LOG TIME UNIT ALARM TERM REP INT REF LOCK °F ℃ °FH ℃H %RH Clock mode READ LOG TIME UNIT ALARM TERM REP INT REF LOCK °F ℃ °FH ℃H %RH Auto-power-off selection mode

Ensure the following instructions to use this meter correctly. Warning (For avoiding unexpected dangerous accidents of death or serious injury) ◆ Don’t use this meter in places where explosive gas exists. ◆ If this meter is smoking, nasty smelling or abnormal noising, remove batteries from it or pull out an AC power adapter (RH32-AC110) (if used) from a receptacle as quickly as possible, and then contact your OMEGA’s agent. ◆ Don’t throw out batteries in fire. Don’t charge, short circuit, heat or disassemble them. It will cause a fire or an injury by blowing-out or heat. ◆ For the AC power adapter, use the power voltage of 100 to 240V. Don’t touch the AC power adapter or the receptacle by wet hands. It will cause an electric shock, a fire or a failure. Wipe out dusts from the AC power adapter to prevent fires. ◆ Don’t touch the inside of the case by wet hands. ◆ Don’t repair or modify it. ◆ Check the specifications of batteries. Use AA (UM-3) batteries. ◆ Don’t use it under failed conditions. ！ ！ ！ ！ ！ ！ ！ ！

Request and notices Importance notices Warning and safety notices 1. Introduction·························································1 1.1 Outline ··································································1 1.2 Configuration·························································1 2. Model and accessories·······································3 2.1 Model·····································································3 2.2 Accessories·····························································3 3. Overviews and functions····································4 3.1 Overviews and functions : Front view ···················4 3.2 Overviews and functions : Side view·····················4 3.3 Display··································································6 4. Installation···························································8 4.1 Using as a handheld type·······································8 4.2 Using as a wall installation type·····························9 4.3 Using as a desktop installation type ·····················10 5. Measurement for preparation························11 5.1 Loading of battery (AA=UM-3)··························11 5.2 Clock adjustment of clock ···································13 5.2.1 Clock adjustment mode·····································13 5.2.2 Retaining of month············································13 5.2.3 Retaining of day ················································13 5.2.4 Retaining of hour ·········································· 14 5.2.5 Retaining of minute······································· 14 5.2.6 Retaining of year··········································· 14 5.2.7 Retaining of clock········································· 14 5.3 Measurement preparation···································16 5.3.1 Measurement unit selection mode················· 16 5.3.2 Temperature measurement unit····················· 16 6. Continuous measurement······························ 18 6.1 Continuous measurement mode·························18 6.2 Measured temperature/humidity display range···19 7. Replacement of temperature/humidity sensor20 8. Working environment···································· 23 9. Troubleshooting··············································· 24 10. Specifications················································· 26 11. External dimensions····································· 27 11.1 External dimensions of RH32B-C··················27 11.2 External dimensions of RH32P-C··················28 11.3 External dimensions of RH32S-C··················28

The RH32 series is a high performance and highly reliable palm-sized temperature/humidity meter for the measurement of temperature and humidity of 0 to 100%RH using a capacitance type humidity sensor. The meter has two major functions, “measurement of temperature and humidity” and “data logging of maximum 8000 data of both temperature and humidity” (Refer to the separated instruction manual Vol. 2 ). In addition, by using a data logging software package (sold separately), easy data processing by a PC is available. 1.2 Configuration 1. Introduction * For the RS-485 communications with Model RH32-C4 (RS-485 communications type), make sure to use the AC power adapter (RH32-AC110 - sold separately) as the batteries will be consumed very rapidly. Caution Built - in type sensor RH32B-RP AC power adapter RH32-AC110* Temperature/humidity meter RH32B-C2 RH32P-C2 RH32S-C2 RH32B-C4 * RH32P-C4 * RH32S-C4 * Separated type sensor RH32S-RP RS-232C communications cable RH32-S2-CABLE Note) RS-485 communications cable RH32-S4-CABLE* Note) Probe type sensor RH32P-RP Data logging software package RH32-SW1 Note) RH32-SW2 Note) Note : Sold separately

RH32B-C2，RH32P-C2，RH32S-C2， RH32B-C4，RH32P-C4，RH32S-C4 Directive 89/336/EEC，92/31/EEC amendment， 93/68/EEC amendment Standard EN61326+A1: Emission class B， Immunity Table1 (Minimum immunity test requirements) Conformance condition RH32B-C4：The connection cable is to be used indoor and within 30m. RH32S-C4，RH32P-C4：The connection cable is to be within 3m. Stability under the test environment of EMC directive Temperature ±0.5ºC Relative humidity ±3%RH AC power adapter RH32-AC110 EMI standard Meets the conduction limit of : FCC Class B EN61000-3-2 EN55022 B EN61000-3-3 VCCI II EMS EN50082-1 IEC801-2 Level3 IEC801-3 IEC801-4

P: Probe type (Cable length: 1.5m) S: Separated type (Cable length: 1.5m) Communications interface 2: RS-232C 4: RS-485 2.2 Accessories Accessories Qty. Remarks Desktop attachment 1 AA (UM-3) alkaline battery 2 Vol.1 Basic instructions 1 This manual Vol.2 Function instructions 1 Separate manual 2. Model and accessories

Article Function (1) Temperature/humidity sensor Temperature and humidity sensors built-in (2) DISP (LOCK) key To go to the continuous measurement mode or the programming mode from clock mode, or to set the key lock function (3) ENT (LOG) key To retain the parameter programmed, or to start/stop data logging (4) ∧ (SHIFT) key To increase a numerical figure and shift a key function. (5) ∨ key To decrease a numerical figure in the program- ming mode READ LOG TIME UNIT ALARM TERM REP INT REF LOCK °F ℃ °FH ℃H %RH SHIFT LOCK DISP LOG ENT (1) (2) (3) (4) (5) 3. Overviews and functions (The figures shown are for Model RH32B-C. For Model RH32P-C and Model RH32S-C, refer to [11.2 External dimensions of RH32P-C] and [11.3 External dimensions of RH32S-C].)

(The figures shown are for Model RH32B-C. For Models RH32P-C and RH32S-C, refer to [11.2 External dimensions of RH32P-C] and [11.3 External dimensions of RH32S-C].) Article Function (6)Hole for strap The hole for attaching a strap (7)Cover for AC power adapter jack The cover for the jack to connect the AC pow- er adapter (RH32-AC110) For opening the cover, pull up it from the low- er side. (8)Cover for communica- tions jack The cover for the jack to connect the RS-232C communications cable (RH32-S2-CABLE) or the RS-485communications cable (RH32-S4-CABLE). For opening the cover, pull up it from the lower side. (9)Hole for wall installation The hole for hooking this meter to a wall using a M4 screw or a nail (10)Battery cover The cover for the AA battery compartment. For opening it, push it upward by picking up the nail of a lower part. (11)Holes for desktop attachment The holes for mounting the attachment for the desktop installation. (6) (7) (8) (9) (10) (11) 3. Overviews and functions

READ LOG TIME UNIT ALARM TERM REP INT REF LOCK °F ℃ °FH ℃H %RH (2) Month/day (3) Sub display (4) Main display 1 (5) Main display 2 (1) Main marker (1) Main marker (6) Temperature measurement unit (7) Humidity measurement unit/totalized temperature measurement unit (8) Low battery mark

READ Reading Lights when stored data are read. TIME Month/day/hour/minute Lights when year, month, day and time are programmed. Lights in endless storage by using the data logging software package (sold separately). UNIT Temperature measurement unit /humidity measurement unit Lights when the temperature measurement unit (ºC/ºF) or the relative humid- ity/the dew-point temperature measurement unit (%RH/ºC/ºF) is set. ALARM Alarm Lights when an alarm is activated or alarm setpoints are programmed. TERM Start/stop Lights when storage start and stop time of the automatic storage are programmed. REP Repetition Lights when storage repetition is programmed. INT Interval time Lights when storing interval is programmed. (1)Main marker REF Totalizing reference Lights when totalizing reference temperature is programmed. (2) Month/day Month/day Displays month and day. (3) Sub display Hour/minute and parameter item Displays hour and minute when “TIME” or “TERM” lights in the main marker, or displays a parameter item in other cases. (4) Main display 1 Temperature measured value Displays measured temperature or totalized temperature. (5) Main display 2 Humidity measured value Displays measured relative humidity, measured dew-point temperature, or totalized temperature. ºC Lights when measured temperature is displayed in ºC. (6) Temperature measurement unit ºF Lights when measured temperature is displayed in ºF. %RH Relative humidity Lights when relative humidity is displayed. º CH ºC/ºCH ºC lights when dew-point temperature and ºC temperature are displayed. ºCH lights when totalized temperature and ºC temperature are displayed. (7) Humidity measurement unit/totalized temperature measurement unit º FH ºF/ ºFH ºF lights when dew-point temperature and ºF temperature are displayed. ºFH lights when totalized temperature and ºF temperature are displayed. (8) Low battery mark Low battery mark Lights when battery voltage becomes lower. 3. Overviews and functions

When this meter is used as a handheld type, be careful not to cover the temperature/humidity sensor by hands or not to touch it by fingers. For the built-in type sensor, make sure to hold the lower half of this meter. If the temperature/humidity sensor is covered by hands or touched by fingers, accurate tempera- ture/humidity measurement is not possible. LOG ALARM LOCK ℃ %RH SHIFT LOCK DISP LOG ENT Temperature/humidity sensor Hold lower than this position. 4. Installation Caution

When this meter is used as a wall installation type, hook the wall installation hole on the backside of this meter to a M4 screw or a nail mounted to the wall. 4. Installation Wall installation hole

When this meter is used as a desktop installation type, insert the desktop attachment to the holes for the desktop installation. 4. Installation Desktop attachment Hole for desktop attachment

This meter is operated by two AA (UM-3) alkaline batteries. Open the battery cover and load the batteries with correct polarities. Note : Sold separately 5. Measurement preparation For opening the battery cover, push it lightly upward by lifting up the nail. In operation of this meter with the AC power adapter (RH32-AC110* Note) only, the loading of the batteries is not required. + polarity + polarity Load the batteries with correct polarities. Reference Caution

the month/day display part, and hour and minute are displayed in the sub display.  Battery life  When the battery voltage becomes lower, the low battery mark will light. Replace the batteries with new ones.  If you use this meter with the low battery mark being lit, “Er4” will be displayed in the main display 2. Replace the batteries with new ones.  When any displays are not shown, the batteries voltage becomes lower. Replace the batteries with new ones.  Battery replacement Replace 2 batteries together.  Battery polarities Load the batteries with correct polarities.  When the AC power adapter is used:  The low battery mark will not light.  If “Er4” displays in the main display 2, take the following procedures. 1)Remove the AC power adapter from this meter. 2)After then, take off the batteries or replace them into new ones. 3)Connect the AC power batteries again. Note) The clock will stop (reset) by the above procedure, adjust the clock. (Refer to [5.2 Clock adjustment].) 5. Measurement preparation  Stop of clock in battery replacement When the clock stops in the battery replacement, the clock will start from 0 hour 00 minute, January 1st, 2001 after the loading of the new batteries. READ LOG TIME UNIT ALARM TERM REP INT REF LOCK °F ℃ °FH ℃H %RH Month/day display part Sub display Low battery mark Caution Reference

5.2.1 Clock adjustment mode In the continuous measurement mode, press DISP key for 2 seconds to go to the stored data reading mode with “READ” lit in the main marker. Press DISP key again several times to go to the clock adjustment mode. In the clock adjustment mode, “TIME” will light in the main marker and “month” will flash. 5.2.2 Retaining of month Select the “month” by pressing ∧ key or ∨ key. By pressing ENT key, the month selected will be retained and “day” will flash. 5.2.3 Retaining of day Select the “day” by pressing ∧ key or ∨ key. By pressing ENT key, the day selected will be retained and “hour” will flash. 5. Measurement preparation READ LOG TIME UNIT ALARM TERM REP INT REF LOCK °F ℃ °FH ℃H %RH READ LOG TIME UNIT ALARM TERM REP INT REF LOCK °F ℃ °FH ℃H %RH READ LOG TIME UNIT ALARM TERM REP INT REF LOCK °F ℃ °FH ℃H %RH

Select the “hour” by pressing ∧ key or ∨ key. By pressing ENT key, the hour selected will be retained and “minute” will flash. 5.2.5 Retaining of minute Select the “minute” by pressing ∧ key or ∨ key. By pressing ENT key, the minute selected will be retained and “year” will flash. 5.2.6 Retaining of year Select the “year” by pressing ∧ key or ∨ key. (The year up to 2099 can be selected.) Press ENT key to retain the year selected. 5.2.7 Storing of clock The flashing of the year selected will stop and the clock programmed will be stored. 5. Measurement preparation READ LOG TIME UNIT ALARM TERM REP INT REF LOCK °F ℃ °FH ℃H %RH READ LOG TIME UNIT ALARM TERM REP INT REF LOCK °F ℃ °FH ℃H %RH  Judgment of clock The judgment of the clock programmed is executed after pressing ENT key in [5.2.7 Storing of clock]. If the date not existed (Ex. February 31) has been programmed, the screen will return to [5.2.2 Retaining of month] screen with “month” flashing. Reprogram the correct date. This judgment function supports leap years. Reference

Programming range Default Month * 1 to 12 1 Day * 01 to 31 01 Hour 0 to 23 0 Minute 00 to 59 00 Year 2001 to 2099 2001 * Leap years are supported. 5. Measurement preparation  Accurate clock programming For the accurate clock programming including second, take the following procedures. 1. Load the batteries at 0 second by referring to the radio time signal or an accurate watch. 2. Adjust the clock with the procedures from Para. 5.2.1 to Para. 5.2.7. The counting of second starts at the moment the battery is loaded.  The clock will be initialized when the batteries are replaced. Reprogram the clock.  If the clock is reprogrammed, all time-related-parameters will be initialized. Reprogram the parameters. For the programming by ∧ key, when the value reaches to the maximum value of the programming range, it will not return to the default value even if ∧ key is pressed continuously. Use ∨ key to decrease the value. The time is based on 24-hour clock system. Program 14-hour for PM2 and 22-hour for PM10. If DISP key is pressed before the retaining of year, the programmed data before it will not be stored. Caution Reference Caution Reference

5.3.1 Measurement unit selection mode In the clock adjustment mode with “TIME” lit in the main marker, press DISP key several times to go to the measurement unit selection mode (“UNIT” will light in the main marker.). In the measurement unit selection mode, “ºC” will flash. 5.3.2 Temperature measurement unit By pressing ∧ key or ∨ key, “ºC” or “ºF” will flash. Press ENT key to retain the temperature measurement unit selected. The temperature measurement unit selected will stop flashing and the humidity measurement unit will flash. 5.3.3 Humidity measurement unit By pressing ∧ key or ∨ key, “ºC” or “%RH” will flash when “ºC” is selected in [5.3.2 Selection of temperature measurement unit], or “ºF” or “%RH” will flash when “ºF” is selected. Press ENT key to retain the humidity measurement unit selected. The humidity measurement unit selected will stop flashing 5. Measurement preparation READ LOG TIME UNIT ALARM TERM REP INT REF LOCK °F ℃ °FH ℃H %RH READ LOG TIME UNIT ALARM TERM REP INT REF LOCK °F ℃ °FH ℃H %RH

starting the measurement. Selection Default Temperature unit ºC, ºF ºC Humidity unit %RH (Relative humidity) ºC, ºF (Dew-point temperature) %RH 5. Measurement preparation When the measurement unit is changed, the parameters of high alarm, low alarm and totalizing reference temperature will be initialized. When “°C” is selected for the temperature measurement unit, the humidity measurement unit is selected from “%RH” or “ºC”. When “ºF” is selected, it is selected from “%RH” or “ºF”. In condition that “ºC” is for the temperature measurement unit and the humidity measurement unit, when “ºF” is selected for the temperature measurement unit, the humidity measurement unit becomes “ºF” forcibly. Reference

By pressing DISP key, the temperature/humidity measurement will start after bars are displayed for about 1 second. The measured temperature will be displayed in the main display 1 and the measured humidity will be displayed in the main display 2 together with the display of month, day, hour, and minute at the measurement. The temperature measurement unit and the humidity measurement unit being displayed are the units already selected. For the selection of the measurement unit, refer to [5.3 Measurement unit selection]. If “ALARM” lights in the main marker, the measurement value has exceeded a high alarm setpoint or a low alarm setpoint. Check the setpoints and reprogram them if necessary. Refer to [4.2 High alarm setpoint] and [4.3 Low alarm setpoint] in the separate instruction manual Vol. 2 . 6. Continuous measurement If “Er4” for “low battery” or “meter abnormal” is displayed in the main display 2, replace the batteries first. (Ref. [5.1 Loading of batteries] in the separated instruction manual Vol. 1 ) If “Er4” is still displayed by the above replacement of batteries, contact your CHINO’s agent. READ LOG TIME UNIT ALARM TERM REP INT REF LOCK °F ℃ °FH ℃H %RH READ LOG TIME UNIT ALARM TERM REP INT REF LOCK °F ℃ °FH ℃H %RH Bar Main marker Humidity measurement Temperature measurement unit Main display 1: Temperature Main display 2: Humidity Month Day Hour Minute Caution

ººC -40 to 80ºC Temperature ºF -40 to 176ºF %RH 0 to 100%RH ºC -60 to 80ºC Humidity ºF -76 to 176ºF When the clock is displayed after the measurement for about 1 minute, the auto-power-off function is “on” (active). For continuing the continuous measurement, select the auto-power-off function to “oFF” (release). (Ref. [Auto-power-off function] in Important notices) When the auto-power-off function is set at “oFF” (release) and the continuous measurement is executed, the batteries will be consumed very rapidly. For the continuous measurement constantly executed, use the AC power adapter (RH32-AC110) sold separately. 6. Measurement and data storage When the measured temperature is lower than the minimum limit, “uFL” will be displayed in the main display 1 and, when it is higher than the maximum limit, “oFL” will be displayed. When the measured humidity is 0%, 0% will be displayed, but when the measured humidity is higher than 100% (dew condensation), the value will be held at 100%. Reference Caution

the replacement of the built-in type temperature/humidity sensor with the separated type sensor or the probe type sensor. 1) Pull out the temperature/humidity sensor from this meter. 7. Replacement of temperature/humidity sensor (Ref. [3.1 Overviews and functions]) Make sure to pull out the temperature/humidity sensor straight by holding its front and rear faces by two fingers. Pins may be bended if it is not pulled out straight. For disconnecting the separated type sensor or the probe type sensor from this meter, pull out it by holding the connection part. Make sure not to pull out the cable. (Ref. [11. External dimensions]) Connection part Hold here. Cable (*) Pull out straight. Pull out straight. (*) Don’t pull out the cable. Caution

ture/humidity sensor (RH32S-RP and RH32P-RP) or at both sides of the built-in sensor (RH32B-RP) with the concave portions of this meter, and insert the connection part or the built-in sensor straight. 3) Align the pins of the connection part or the built-in sensor with the connector of this meter, and push the connection part or the built-in sensor into this meter straight. 4) Press DISP key for about 2 seconds to go to the continuous measurement mode. At this time, the temperature and humidity values displayed are different from the exact measured values. If you squeeze the connection part or the built-in sensor into this meter, the positions of the connector of this meter and the pins of the connection part or the built-in sensor are not fitted and the pins may be broken. Concave portions of meter Protrusions of built-in type sensor 7. Replacement of temperature/humidity sensor (Ref. [3.1 Overviews and functions]) Caution

After bars are displayed for about 1 second, the correct temperature and humidity measured values will be displayed. 7. Replacement of temperature/humidity sensor (Ref. [3.1 Overviews and functions]) READ LOG TIME UNIT ALARM TERM REP INT REF LOCK °F ℃ °FH ℃H %RH READ LOG TIME UNIT ALARM TERM REP INT REF LOCK °F ℃ °FH ℃H %RH Interchangeability of temperature/humidity sensors The temperature/humidity sensors, the built-in type (RH32B-RP), the separated type (RH32S-RP) and the probe type (RH32P-RP), are interchangeable. The interchangeability will be obtained by pressing ∨ key while pressing ∧ (SHIFT) key in the proce- dure No. 5) Reference

 Places where the ambient temperature is out of –10 to 50ºC (this meter)  Places where the ambient temperature is out of –40 to 80ºC (separated type and probe type sensors)  Places where dew condenses  Places where vibration or impact affects  Places where much noise exist  Places where dusts exist  Places where much ketones organic solvent, esters organic solvent, halogen, strong acid material, corrosive material or dust/oil mist/salt mist exist  Places where explosive gas, corrosive gas or flammable gas exist  Places where steam, chemicals or seawater splash 8. Working environment As the humidity element is constantly exposed in ambient atmosphere, its performance may be remarkably deteriorated depending on measuring environment. Its life depends on the kind of environment. Particularly avoid using it in the following places as these places make the humidity element life shorten rapidly.  Place where ketones organic solvent, esters organic solvent, halogen, strong acid material, corrosive mate- rial, dust/oil mist/salt mist, corrosive gas, steam or seawater splashing exist. Caution

main display 1. Temperature measurement can’t be executed. Check the connection of the temperature/humidity sensor. (Ref. [7. Replacement of temperature/humidity sensor]) Check if dew has been condensed in the temperature/humidity sensor. Measurement is possible after recovering from dew condensation. 100%RH has been measured in the humidity measurement. Check the connection of the temperature/humidity sensor. (Ref. [7. Replacement of temperature/humidity sensor]) 2) The humidity value in the main display 2 is 100%RH (The dew-point temperature display becomes the same value as the temperature measured value.). Interchangeability of the tempera- ture/humidity sensor has not been obtained. Press ∨ key while pressing ∧ key. (Ref. [7. Replacement of temperature/humidity sensor]) The humidity measurement from 0%RH is possible. Check if an object is not in absolute dry condition. 0%RH has been measured in the humidity measurement. Check the connection of the temperature/humidity sensor. (Ref. [7. Replacement of temperature/humidity sensor]) 3) The humidity value in the main display 2 is 0%RH (The dew-point temperature display becomes -60ºC.). Interchangeability of the tempera- ture/humidity sensor has not been obtained. Press ∨ key while pressing ∧ key. (Ref. [7. Replacement of temperature/humidity sensor]) 4) “Er1” is displayed in the main display 2. Humidity measurement can’t be executed. Check the connection of the temperature/humidity sensor. (Ref. [7. Replacement of temperature/humidity sensor]) 5) “Er2” is displayed in the main display 2. In the dew-point temperature dis- play, the dew-point computation is not possible due to abnormal temperature data. If “Er1” is displayed in the main display 1, check the connection of the temperature/humidity sensor. (Ref. [7. Replacement of temperature/humidity sensor]) 9. Troubleshooting

main display. 2 The batteries are dead. If “Er4” is still displayed after the battery replacement, this meter has been abnormal. Replace the batteries with new ones. (Ref. [5.1 Loading of batteries]) If “Er4” is still displayed after the battery replacement, contact your OMEGA’s agent. 7) Nothing including the clock is displayed. No power has been supplied. Replace the batteries with new ones. (Ref. [5.1 Loading of batteries]) 8) None displayed The batteries are dead Replace the batteries with new ones. (Ref. [5.1 Loading of batteries]) 9) “oFL” is displayed in the main display 1. Temperature measured value overflowed Check the temperature measuring range. Check the connection of the temperature/humidity sensor. (Ref. [7. Replacement of temperature/humidity sensor]) 10) “uFL” is displayed in the main display 1. Temperature measured value under flowed Check the temperature measuring range. Check the connection of the temperature/humidity sensor. (Ref. [7. Replacement of temperature/humidity sensor]) 9. Troubleshooting

Measuring range 0 to 100%RH Accuracy ratings ±2%RH (0 to 90%RH，at 25ºC), ±3%RH (90 to 95%RH, at 25ºC) Stability (under EMC test environment) ±3%RH Temperature coefficient ±0.1%RH/ºC (5 to 80ºC) Relative humidity Response time Shorter than 15 seconds (90% response, 25ºC constant, under 0.1m/s ventilation) Sensor Semi-conductor type temperature sensor Measuring range -10 to 50ºC, -40 to 80ºC (Probe type RH32P, separated type RH32S) Accuracy ratings ±0.5ºC (0 to 50ºC), ±1ºC (other than the left shown) Temperature Stability (under EMC test environment) ±0.5%RH Sensor interchangeability Plug-in type interchangeability (Plug-in type interchangeability including 1.5m cable for probe type and separated type sensor) Power supply 2 AA (UM-3) alkaline batteries or 100VAC (AC power adapter – sold separately) Current data Year, month, day, hour, minute, temperature measured value (ºC or ºF), Relative humidity or dew-point temperature measured value (ºC or ºF) Data reading Programmed parameters, stored data with year, month, day, hour, and minute (The year data is available in using the data logging software package (sold separately). Max. temp./humidity, min. temp./humidity, average temp./humidity, totalized temperature Parameter item Clock: Year, month, day, hour, minute, Temperature: ºC, ºF Relative humidity, dew-point temperature (ºC or ºF) Storage mode: Manual [by pressing of ENT (LOG) key for more than2 seconds] or automatic Storage start time: Year, month, day, hour, minute ,or by pressing of ENT (LOG) key while pressing ∧ (SHIFT) key Storage stop time: Year, month, day, hour, minute or by pressing of ENT (LOG) key while pressing ∧ (SHIFT) key Storage repetition: Disable, every day, every week Measurement interval: continuous, 1 to 60 minutes High/low alarms, totalizing reference temperature, totalizing direction, auto-power-off, key lock Display Display content Clock – displayed constantly Measured values – displayed by pressing DISP key for about 2 seconds in power-off condition Number of stored data Temperature/humidity – each maximum 8000 data, total 16000 data EEPROM） Communications function RS-232C or RS-485 10. Specifications

11. External dimensions 64 Temperature / humidity sensor Display Function key Cover for AC power adapter jack Hole for strap Communications jack Hole for wall installation Battery cover Holes for desktop attachment 30 2 3 110 unit : mm

11.3 External dimensions of RH32S-C 11. External dimensions Temperature / humidity sensor φ18 110 30 158 φ12 40 Cable length: 1.5m Cable length: 1.5m unit : mm Temperature / humidity sensor