Omega RH32 Series Installation guide

Servicing North America:
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: [phone]
FAX: [phone] e-mail: [email protected]
Canada: 976 Bergar
Laval (Quebec), Canada H7L 5A1
Toll-Free: 1-800-826-6342 TEL: [phone]
FAX: [phone] 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 [phone] FAX: [phone]
[email protected] e-mail: [email protected]
Servicing Europe:
Benelux: Managed by the United Kingdom Office
Toll-Free: 0800 099 3344 TEL: [phone]
FAX: [phone] e-mail: [email protected]
Czech Republic: Frystatska 184
733 01 Karviná, Czech Republic
Toll-Free: 0800-1-66342 TEL: [phone]
FAX: [phone] e-mail: [email protected]
France: Managed by the United Kingdom Office
Toll-Free: 0800 466 342 TEL: [phone]
FAX: [phone] e-mail: [email protected]
Germany/Austria: Daimlerstrasse 26
D-75392 Deckenpfronn, Germany
Toll-Free: 0 800 6397678 TEL: [phone]
FAX: [phone] 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: [phone]
FAX: [phone] 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.

WARRANTY/DISCLAIMER
OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a
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.

M4818/1009
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INST.No.INE-418-1P1CE
-Preface 1-
Request and notices
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 “
T
emperature/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”.

INST.No.INE-418-1P1CE
-Preface 2-
Important notices
The instruction manual for the RH32 series palm-sized temperature/humidity meter is consisted of Vol. 1 [Basic instructions] and
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
℃
°
F
H
℃
H
%RH
Clock mode
READ
LOG TIME UNIT ALARM
TERM REP INT REF LOCK
°
F
℃
°
F
H
℃
H
%RH
Auto-power-off selection mode

INST.No.INE-418-1P1CE
-Preface 3-
Warning and safety notices
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 willcauseafireor an injury by blowing-out or heat.
◆For theAC 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 theAC 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. UseAA(UM-3) batteries.
◆Don’t use it under failed conditions.
！
！
！
！
！
！
！
！

INST.No.INE-418-1P1CE
-Content-
Contents
Palm-sized temperature/humidity meter<Vol.1 [Basic instructions]>
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
2.2Accessories·····························································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 ofbattery(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 Continuousmeasurement mode·························18
6.2 Measured temperature/humidity display range···19
7. Replacementof 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

INST.No.INE-418-1P1CE
-1-
LOG ALARM
LOCK
℃
%RH
SHIFT LOCK
DISP
LOG
ENT
1. 1 Outline
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 <Function instructions>). 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 theAC 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

INST.No.INE-418-1P1CE
-2-
conformance
Palm-sized temperature/humidity meter
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

INST.No.INE-418-1P1CE
-3-
2.1 Model
RH32-C
Temperature/humidity sensor
B: Built-in type
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

INST.No.INE-418-1P1CE
-4-
3.1 Overviews and functions : Front view
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
READLOG TIME UNIT ALARM
TERM REP INT REF LOCK
°
F
℃
°
F
H
℃
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].)

INST.No.INE-418-1P1CE
-5-
3.2 Overviews and functions : Side view
(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 forAC
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

INST.No.INE-418-1P1CE
-6-
3.3 Display
3. Overviews and functions
READLOG TIME UNIT ALARM
TERM REP INT REF LOCK
°
F
℃
°
F
H
℃
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

INST.No.INE-418-1P1CE
-7-
LOG Data storage Lights during manual or automatic storage
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

INST.No.INE-418-1P1CE
-8-
4.1 Using as a handheld type
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

INST.No.INE-418-1P1CE
-9-
4.2 Using as a wall installation type
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

INST.No.INE-418-1P1CE
-10-
4.3 Using as a desktop installation type
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

INST.No.INE-418-1P1CE
-11-
5.1 Loading of battery (AA=UM-3)
This meter is operated by twoAA(UM-3) alkaline batteries.
Open the battery cover and load the batteries with correct polarities.
Note : Sold separately
5. Measurement
p
re
p
aration
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

INST.No.INE-418-1P1CE
-12-
After the loading of the new batteries, month and day are displayed in
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 theAC 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 theAC power adapter from this meter.
2)After then, take off the batteries or replace them into new ones.
3)Connect theAC power batteries again.
Note
)
The clock will sto
p
(
reset
)
b
y
the above
p
rocedure, ad
j
ust the clock.
(
Refer to
[
5.2 Clock a
d
j
ustment
]
.
)
5. Measurement
p
re
p
aration
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
℃
°
F
H
℃
H
%RH
Month/day
display part
Sub display
Low battery mark
Caution
Reference