Omega RH62C Manuel utilisateur

OMEGA

RH62C

HYGROMETER

OMEGAnetSM On-Line Service

http://www.omega.com

Internet e-mail

[email protected]

For immediate technical or application assistance:

USA and Canada: Mexico and Latin America:

Sales Service: 1-800-826-6342 / 1-800-TC-OMEGASM Tel: (95) 800-TC-OMEGASM

Customer Service: 1-800-622-2378 / 1-800-622-BESTSM FAX: (95) 203-359-7807

Engineering Service: 1-800-872-9436 / 1-800-USA-WHEN

En Español: (203) 359-7803

TELEX: 996404 EASYLINK: 62968934 CABLE: OMEGA

e-mail: [email protected]

Servicing North America:

USA: ISO 9001 Certified Canada:

One Omega Drive, Box 4047 976 Bergar

Stamford, CT 06907-0047 Laval (Quebec) H7L5A1

Tel: (203) 359-1660 Tel: (514) 856-6928

FAX: (203)359-7700 FAX: (514) 856-6886

e-mail: [email protected] e-mail: [email protected]

Servicing Europe:

Benelux:

Postbus 8034, 1180 LA Amstelveen,

The Netherlands

Tel: (31) 20 6418405 FAX: (31) 20 6434643

Toll Free in Benelux: 06 0993344

e-mail: [email protected]

Czech Republic:

ul. Rude armady 1868, 733 01 Karvina-

Hranice, Czech Repubic

Tel: 420 (69) 6311627 FAX: 420 (69)

6311114

e-mail: [email protected]

France:

9, rue Denis Papin, 78190 Trappes

Tel: (33) 130-621-400 FAX: (33)130-699-120

Toll Free in France: 0800-4-06342

e-mail: [email protected]

Germany/Austria:

Daimlerstrasse 26, D-75392

Deckenpfronn, Germany

Tel: 49 (07056) 3017 FAX: 49 (07056) 8540

Toll Free in Germany: 0800 82 66342

e-mail: [email protected]

United Kingdom: ISO 9002 Certified

One Omega Drive

Riverbend Technology Centre Northbank, Irlam,

Manchester, M44 5EX, England

Tel: 44 (161) 777-6611 FAX: 44 (161) 777-6622

Toll Free in England: 0800-488-488

e-mail: [email protected]

omega.com

INTRODUCTION

This instrument is a portable 3½ digit, compact-sized digital Thermo-Hygrom-

eter designed for simple one hand operation. Uses Platinum Resistance Tem-

perature 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 hygrometer.

CAUTION

• Do not immerse the hygrometer 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.

SPECIFICATIONS

GENERAL

Display: 3½ digit liquid crystal display (LCD) with maximum reading of 1999.

Overtemperature: "OL" mark indication.

Low battery indication: The " " is displayed when the battery voltage drops

below the operating level.

Measurement rate: 2.5 times per second, nominal.

Accuracy: Stated accuracy at 23°C ± 5°C, <75% relative humidity.

Temperature Coefficient: 0.1 times the applicable accuracy specification per

°C from °C to 18°C and 28°C to 50°C.

Operating environment: 0°C to 50°C at <75% relative humidity.

Storage environment: -20°C to 60°C 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: 160g (including probe and batteries).

ELECTRICAL

TEMPERATURE

Temperature Scale: Celsius.

Temperature Sensor: RTD Pt385/1000W.

Measurement Range: -20°C to 100°C.

Resolution: 0.1°C.

Accuracy: ±0.5°C 0°C to 50°C

±1°C -20°C to 0°C, 50°C to 100°C

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.

Resolution: 0.1%RH.

Accuracy: ±2.5%RH (10% to 90%RH)

±5%RH (<10%, > 90%RH)

Sensor Response Time for 90% of Total Range: 60sec typical.

Sensor Stability: ±2%RH, 2 years typical.

Sensor Hysteresis (excursion of 10% to 90% to 10% RH): ±1%RH typical.

Sensor Temperature Dependence: Negligible between 0°C to 50°C.

OPERATING INSTRUCTIONS

Push Button

Display Back-Light Button

Press " " button to toggle between turn on and turn off the Back-Light.

DATA HOLD Button

Press the DATA HOLD key to enter the DATA HOLD mode, the" H" annunciator

is displayed. When DATA HOLD mode is selected, the hygrometer holds the

present readings and stops all further measurements.

Press the DATA HOLD key again cancels DATA HOLD mode, causing hygrom-

eter to resume taking measurements.

MAX HOLD Button

Press the MAX HOLD key to enter the MAX HOLD mode. The hygrometer then

records and updates the maximum absolute values and the MAX annunciator

appears on the display. Press the MAX HOLD key again to exit the MAX HOLD

recording mode.

In the MAX HOLD mode, press DATA HOLD key to stop the recording, press

DATA HOLD key again to resume recording.

OPERATION

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

2. Set the power switch to the desired %RH or °C range.

3. Read the display.

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

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,coldouterwalls, airdraft (e.g.fans), radiatinghand and/ orbody 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

Bydustintheairormeasurementsinpowderysubstances.Thiscanbelargely

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

periodically depending upon the degree of contamination of the measuring

site.

OPERATOR MAINTENANCE

Battery Replacement

Powerissuppliedbyfour1.5V(AAAsize)batteries.The" "appearsontheLCD

displaywhenreplacementisneeded.Toreplacethebatteries,removethescrew

fromthebackofthemeterandliftoffthebatterycover.Removethebatteriesfrom

battery contacts.

Cleaning

Periodicallywipethecasewithadampclothanddetergent,donotuse abrasives

or solvents.

WARRANTY

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 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 should malfunction, 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.However, thisWARRANTY 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;

improperspecification;misapplication;misuse orother operatingconditions outsideof OMEGA'scontrol.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 assumesresponsibility for anyomissions orerrors thatmayappearnorassumesliabilityforany 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.

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