Omega OS541 User Manual

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User’s Guide

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OS541

Infrared Thermometer

CAUTION

LASER RADIATION

DO NOT STARE INTO BEAM

WAVELENGTH 800-700 mm
POWER <1mW-CLASS IN LASER
PRODUCT, COMPLIES WITH 21

CFR CHAPTER 1, SUBCHAPTER J.

LASER RADIATION­CLASS 2 LASER PRODUCT,
CONFORMS TO IEC825-1:1993

MADE IN TAIWAN

Servicing North America:

USA: One Omega Drive, Box 4047

ISO 9001 Certified Stamford CT 06907-0047

Tel: [phone] FAX: [phone]
e-mail: [e-mail]

Canada: 976 Bergar

Laval (Quebec) H7L 5A1, Canada
Tel: [phone] FAX: [phone]
e-mail: [e-mail]

For immediate technical or application assistance:

USA 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

®

TELEX: 996404 EASYLINK: 62968934 CABLE: OMEGA

Mexico: En Espan˜ol: [phone]-7803 e-mail: [e-mail]

FAX: [phone] [e-mail]

Servicing Europe:

Benelux: Postbus 8034, 1180 LA Amstelveen, The Netherlands

Tel: [phone] FAX: [phone]
Toll Free in Benelux: 0800 0993344
e-mail: [e-mail]

Czech Republic: Frystatska 184, 733 01 Karviná, Czech Republic

Tel: [phone] FAX: [phone]
Toll Free: 0800-1-66342 e-mail: [e-mail]

France: 11, rue Jacques Cartier, 78280 Guyancourt, France

Tel: [phone] FAX: [phone]
Toll Free in France: 0800 466 342
e-mail: [e-mail]

Germany/Austria:

Daimlerstrasse 26, D-75392 Deckenpfronn, Germany
Tel:+ 49 (0)7056 9398-0 FAX: [phone]
Toll Free in Germany: 0800 639 7678
e-mail: [e-mail]

United Kingdom: One Omega Drive, River Bend Technology Centre

ISO 9002 Certified Northbank, Irlam, Manchester

M44 5BD United Kingdom
Tel: [phone] FAX: [phone]
Toll Free in United Kingdom: 0800-488-488
e-mail: [e-mail]

OMEGAnet®On-Line Service Internet e-mail

www.omega.com [e-mail]

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, human applications.

CONTENT

Page

I. SAFETY INFORMATION --------------------- 2

II. CAUTIONS --------------------------------------- 2

III. GENERAL SPECIFICATION ---------------- 3

IV. NAME AND FUNCTION ---------------------- 4

V. OPERATION INSTRUCTIONS:

Measuring Trigger ---------------------------- 5

Distance to Spot Ratio (D/S) -------------- 5

Emissivity

-------------------------------------- 5

Maintenance ------------------------------------

Replace Battery

--------------------------------

6

6

Infrared Recorder

I. SAFETY INFORMATION

•

Read the following safety information carefully before
attempting to operate or service the meter.

• Only qualified personnel should perform repairs or
servicing not covered in this manual.

•

Periodically wipe the case with a dry cloth. Do not use
abrasives or solvents on this instrument.

•

Safety symbols:

Dangerous, refer to this manual before using the
meter.

Apply with European CE.

This instrument conforms to the following standards:

EN50081-1: 1992 Electromagnetic Emissions

EN50082-1: 1997 Electromagnetic Susceptibility

Test were conducted using a frequency range of 80-1000
MHz with the instrument in three orientations. The average
error for the three orientations is ± 2.0°C (±4.0°F) at 3V/m
throughout the spectrum. However, between 300 MHz and
500 MHz at 3V/m, the instrument may not meet its stated
accuracy.

Warning of laser!

Do not point laser directly at human eye or
indirectly from reflective surfaces.

II. CAUTIONS

Before using the infrared thermometer you notice the
following:

2

Infrared Recorder

• Away from electrical welders, induction heaters and
EMF sources.

• When using this thermometer under large or abrupt
ambient temperature changes, allow 15 minutes for unit
to stabilize before use.

• Do not keep this thermometer in the environment of
high temperature for a long time.

• Keep away from dusty environment, and keep in carry
case after operation to avoid contamination of optical
lenses.

III. GENERAL SPECIFICATION

Display: 4 digit LCD
Display Illumination:
Field of View: 8:1
Target Indicator:
Emissivity:
Power Off:
Temperature Range:
Accuracy: ±2°C(4°F) or ±2% of reading
Resolution: 0.5°C / 0.5°F
Repeatability: Within ±1% of reading or ±1°C(2°F)
Storage Condition: -10~60°C, 14~140°F, ≤ 75%RH
Operating Condition: 0~40°C, 32~104°F, 10~90%RH
Response time: 0.5 second
Battery: 9V battery, 006P, IEC6F22, NEDA1604
Battery Life: Approximately:15 hrs
Dimension: 157.5x115x36mm, 17.5x4.5x1.4inch
Weight: 180g Approx.
Accessory:

Backlight by LED

Laser spot

0.98

Automatic power-off after 10 seconds

-20~500°C -4~932°F

(Alkaline)

9V battery, instruction manual, carrying case

3

IV. NAME AND FUNCTION

Infrared Recorder

1

2

LASER

ON C

34

FOFF

1

Laser dot/circle switch2Infrared sensor aperture

3

Laser on/off switch

5

Measuring Trigger

7

LCD display

LASER RADIATION -

5

6

CAUTION

DO NOT STARE INTO BEAM

OUTPUT < 1mW AT 630 670mm

CLASS II LASER PRODUCT

4

6

7

OPEN

°C/°F switch

Battery cover

LCD Display

Scan indication

Laser on

indication

Low battery

Digital value

indication

SCAN
HOLD

Data Hold indication

Temperature unit
indication

4

SCAN

Infrared Recorder

V. OPERATION INSTRUCTIONS

• Measuring Trigger

To measure a temperature, point the unit at an object and
pull the trigger. Be sure to consider distance-to-spot size
ratio and field of view. The laser is used for aiming the
target for reference. When the laser is on, you can switch
between laser dot and circle by moving a lever in front of
optics. Laser dot is an indication of the center of the field
of view. Laser circle is an indication of the perimeter of the
field of view. The temperature reading will be updated on
the LCD. When the operator releases the trigger, the
reading will automatically be held on the LCD for 10 more
seconds. After 10 seconds this thermometer will power
down itself to save battery.

• Distance to Spot Ratio (D/S)

You have to make sure that the detection area you want
to measure is larger than the required spot size to get a
correct reading. The temperature you get is an average
temperature of the detected region. The smaller the target,
the shorter distance is required for the measuring. 
(Please refer to the diagram on the side of the unit)

Distance : Spot = 8 : 1

5222

200

400

Measuring Distance

Unit : mm

113

800

Spot Size

5

Infrared Recorder

• Emissivity

Emissivity is a term used to describe the energy-emitting
characteristics of materials. The higher of this value
means the more capability of radiation emittance the
materials has. Most organic materials and painted or
oxidized surfaces have an emissivity of 0.98. Metal
surfaces or shiny materials has a lower emissivity and
give inaccurate readin gs . P le ase n ote t his d uring
applications.

• Maintenance

Blow off loose particles using a lens blow. Gently brush
remaining debris away with a lens brush. Carefully wipe
the surface with a moist cotton swab. The swab may
be moistened with water.
NOTE: Don't use solvents to clean the glass lens.

• Replace Battery

When the battery voltage drops
below that required for reliable
operatio n , the l ow ba tt e r y
sy mbol wil l appe ar,
indi c ati n g i t is the tim e to
replace the battery.
To ch an ge th e 9 V ba tt e ry ,
detach the battery compartment
cover by pushing the engraved
pattern on the handle and pull
down. Change the 9V battery
wi th new one and put th e
battery cover back.

6

LASER RADIATION -

OUTPUT < 1mW AT 630 670mm

CAUTION

DO NOT STARE INTO BEAM

CLASS II LASER PRODUCT

OPEN

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 which wear are not warrant­ed, including but 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 2003 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.

Where Do I Find Everything I Need for

Process Measurement and Control?

OMEGA…Of Course!

Shop online at www.omega.com

TEMPERATURE



Thermocouple, RTD & Thermistor Probes,
Connectors, Panels & Assemblies



Wire: Thermocouple, RTD & Thermistor



Calibrators & Ice Point References



Recorders, Controllers & Process Monitors



Infrared Pyrometers

PRESSURE, STRAIN AND FORCE



Transducers & Strain Gages



Load Cells & Pressure Gages



Displacement Transducers



Instrumentation & Accessories

FLOW/LEVEL



Rotameters, Gas Mass Flowmeters & Flow Computers



Air Velocity Indicators



Turbine/Paddlewheel Systems



Totalizers & Batch Controllers

pH/CONDUCTIVITY



pH Electrodes, Testers & Accessories



Benchtop/Laboratory Meters



Controllers, Calibrators, Simulators & Pumps



Industrial pH & Conductivity Equipment

DATA ACQUISITION



Data Acquisition & Engineering Software



Communications-Based Acquisition Systems



Plug-in Cards for Apple, IBM & Compatibles



Datalogging Systems



Recorders, Printers & Plotters

HEATERS



Heating Cable



Cartridge & Strip Heaters



Immersion & Band Heaters



Flexible Heaters



Laboratory Heaters

ENVIRONMENTAL
MONITORING AND CONTROL



Metering & Control Instrumentation



Refractometers



Pumps & Tubing



Air, Soil & Water Monitors



Industrial Water & Wastewater Treatment



pH, Conductivity & Dissolved Oxygen Instruments

M3920/1203