Omega RH62F-MV User guide

OMEGA

RH62F-MV

Humidity Temperature Transducer

omega. com

TM

OMEGAnetSM On-Line Service

http://www.omega.com

Servicing North America:

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One Omega Drive, Box 4047 976 Bergar

Stamford, CT 06907-0047 Laval (Quebec) H7L5A1

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Postbus 8034, 1180 LA Amstelveen,

The Netherlands

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Toll Free in Benelux: 06 0993344

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ul. Rude armady 1868, 733 01 Karvina-

Hranice, Czech Repubic

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6311114

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France:

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For immediate technical or application assistance:

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Riverbend Technology Centre Northbank, Irlam,

Manchester, M44 5EX, England

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Toll Free in England: 0800-488-488

e-mail: [email protected]

SM

INTRODUCTION

This instrument is a portable, compact-sized Humidity Temperature Trans­ducer designed for simple one hand operation. Uses Platinum Resistance
Temperature Detector Pt385/1000W (Alpha=0.00385) as temperature sensor,
and uses thin film polymer capacitive type relative humidity sensor as hygrom­eter sensor.

SAFETY INFORMATION

It is recommended that you read the safety and operation instructions before
using the humidity temperature transducer.

• Do not immerse the transducer sensor head into liquids since this
causes permanent damage to the sensor.

• The meter when not in use, please use protective metal cap cover the
sensor head and rotate clockwise it to extend sensors life.

The symbol on the instrument indicates that the operator must refer to an

explanation in this manual.

CAUTION

1

SPECIFICATIONS

GENERAL

Low battery indication: The "Red LED" is displayed when the battery voltage

drops below the operating level.
Accuracy: Stated accuracy at 73.4°F ± 9°F, <75% relative humidity.
Temperature Coefficient: 0.056 times the applicable accuracy specification per

°F from 32°F to 64.4°F and 82.4°F to 122°F.

Operating environment: 32°F to 122°F at <75% relative humidity.
Storage environment: -4°F to 140°F at <80% relative humidity.
Battery: 4 pcs 1.5V (AAA size).
Battery Life: 200 hours typical.
Dimensions: 170mm(H) x 44mm(W) x 40mm(D).
Weight: 7.05oz (including probe and batteries).

2

ELECTRICAL
TEMPERATURE

Temperature Scale: Fahrenheit.
Temperature Sensor: RTD Pt385/1000W.
Measurement Range: -4°F to 140°F.
Temperature Output: 10mV/°F.
Accuracy: ±0.9°F 32°F to 122°F

±1.8°F -4°F to 32°F, 122°F to 140°F

RELATIVE HUMIDITY

Humidity Sensor: Electronic capacitance polymer film sensor. (The sensor is

unaffected by water condensate, is immune to most reagent vapors)

Measurement Range: 0% to 100%RH.
Relative Humidity Output: 10mV/%RH.
Accuracy: ±2.5%RH (10% to 90%RH)

Sensor Response Time for 90% of Total Range: 60sec typical.
Sensor Stability: ±2%RH, 2 years typical.

±5%RH (<10%, > 90%RH)

3

Sensor Hysteresis (excursion of 10% to 90% to 10% RH): ±1%RH typical.
Sensor Temperature Dependence: Negligible between 32°F to 122°F.

OPERATON

1. Plug the humidity temperature transducer test leads into the Vdc input jack and

common or ground input jack on the DMM. Observe polarity.

2. Set the DMM to the 200mV range.

3. Rotate counter clockwise to remove the protective metal cap.

4. Set the power switch to the desired %RH or °F range.

5. If the DMM display is over-range. Set the DMM to the 2V range.

6. Read the DMM display. (10mV/°F, 10mV/%RH)

7. Cover sensor head to extend sensor life when not in use.

4

SPECIAL CONSIDERATIONS

• Before a reliable measurement can be made, the measuring hygrometer and

medium to be measured must be in temperature and humidity eguilibrium.

• Temperature measurement errors

Due to too short measurement time, sunshine during the measurement,

heating, cold outer walls, air draft (e.g. fans), radiating hand and / or body heat

etc.

• Humidity measurement errors

Due to steam, water splashes, dripping water or condensation (not water

condensate) on the sensor etc. However, repeatability and long-term stability

are not impaired by this.

• Contamination

By dust in the air or measurements in powdery substances. This can be largely

avoided by using a corresponding filter. The filter must be cleaned or replaced

periodically depending upon the degree of contamination of the measuring

site.

5

OPERATOR MAINTENANCE

Battery Replacement

Power is supplied by four 1.5V (AAA size) batteries. The "LOW BATT" red LED
lighted when replacement is needed. To replace the batteries, remove the screw
from the back of the meter and lift off the battery cover. Remove the batteries from
battery contacts.

Cleaning

Periodically wipe the case with a damp cloth and detergent, do not use abrasives
or solvents.

6

OMEGA warrants this unit to be free of defects in materials and workmanship and to give satisfactory service for a
period of 13 months from date of purchase. OMEGA Warranty adds an additional one (1) month g race 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 should malfunction, it must be returned to the factory for
evaluation. OMEGA's Customer Ser vice 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 def ectiv e it will be repaired or
replaced at no charge. How e ver, this WARRANTY is VOID if the unit shows evidence of having been tampered with
or shows evidence of being 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
which wear or which are damaged by misuse are not warranted. This includes contact points, fuses, and triacs.

OMEGA is glad to offer suggestions on the of use of its various products. Nevertheless, OMEGA only warrants
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,
EXPRESSED 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.

Every precaution for accuracy has been taken in the preparation of this manual; however, OMEGA ENGINEERING,
INC. neither assumes responsibility f or any omissions or errors that may appear nor assumes liability for any damages
that result from the use of the products in accordance with the information contained in the manual.

SPECIAL CONDITION: Should this equipment be used in or with any nuclear installation or activity, purchaser will
indemnity OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the
equipment in such a manner.

WARRANTY

It is the policy of OMEGA 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 Engineering, Inc. 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, patient connected application.

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 prev ent breakage in
transit.

FOR WARRANTY RETURNS, please hav e the f ollowing

information available BEFORE contacting OMEGA:

1. P.O. 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.

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 1999 OMEGA ENGINEERING, INC. All rights reserved. This document may not
be copied, photocopied, reproduced, translated, or reduced to any electronic medium or machine-readable from, in
whole or in part, without prior written consent of OMEGA ENGINEERING, INC.

RETURN REQUESTS / INQUIRIES

FOR NON-WARRANTY REPAIRS, consult OMEGA for

current repair charges. Hav e the f ollo wing inf ormation
available BEFORE contacting OMEGA:

1. P.O. number to cover the COST of the repair.

2. Model and serial number of product , and

3. Repair instructions and/or specific problems relative
to the product.

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