Omega OS137 User Manual 2

OS137 SERIES

Miniature Non-Contact Infrared

Temperature Sensor/Transmitter

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i

OS137 Series Miniature Non-Contact Infrared

Temperature Sensor/Transmitter

Table of Contents

Section Page

Caution & Safety Information ...................................................................... iii

Safety Warnings and IEC Symbols .............................................................. iii

Section 1 Introduction .................................................................................... 1

Section 2 Installation ...................................................................................... 1

2.1 Unpacking .................................................................................. 1

2.2 Electrical Connection ................................................................ 2

Section 3 Operation ......................................................................................... 3

3.1 Measuring Temperature ........................................................... 3

3.2 Ambient Temperature ............................................................... 4

3.3 Atmospheric Quality ................................................................ 4

3.4 Alarm Setting ............................................................................. 6

Section 4 Laser Sight Accessory .................................................................... 7

4.1 Warnings and Caution .............................................................. 7

4.2 Operating the Laser Sight Accessory ..................................... 7

Section 5 Specifications .................................................................................. 9

5.1 General ........................................................................................ 9

5.2 Laser Sight Accessory ............................................................. 10

Section 6 Emissivity Tables .......................................................................... 11

OS137 Series Miniature Non-Contact Infrared Temperature Sensor/Transmitter

ii

Table of Figures

Figure Description Page

2-1 General Wiring Diagram ................................................................ 2

2-2 Alarm Output Wiring Diagram .................................................... 2

3-1 Optical Field of View ...................................................................... 3

3-2 Location of Emissivity & Alarm Adjust and Alarm Switch ......... 3

3-3 Mounting Bracket, OS137-MB ....................................................... 4

3-4 Air Purge Collar, OS137-AP ........................................................... 4

3-5 Stainless Steel Housing .................................................................. 5

3-6 Water/Air Cool Jacket, OS137-WC .............................................. 5

4-1 Laser Sighting Accessory, OS137-LS ............................................. 8

4-2 Laser Warning Label........................................................................ 8

OS137 Series Miniature Non-Contact Infrared Temperature Sensor/Transmitter

iii

CAUTION & SAFETY INFORMATION

If the equipment is used in a manner not specified in this manual, the protection
provided by the equipment may be impaired.

The Installation category is one (1).

There is no user replaceable fuse in this product.

The output terminals of this product are for use with equipment (digital meters,
chart recorders, etc.) which have no accessible live parts. Such equipment should
comply with all the applicable safety requirements.

Do not operate the equipment in flammable or explosive environments.

The unit comes with a 1.82 m (6') shielded cable for power and output
connections. The cable is a multi-conductor, 24 AWG stranded wire with the
rating of 600 VDC, 205ºC (401°F) Teflon

®

insulation.

Power must be disconnected before making any electrical connections.

The recommended power supply should be VDE or UL approved. Rating:12-24
VDC @ 50 mA mininum power with overload protection.

The supply voltage to the transmitter should not exceed 24 VDC.

SAFETY WARNINGS AND IEC SYMBOLS

This device is marked with international safety and hazardous symbols in
accordance with IEC1010. It is important to read and follow all the precautions
and instructions in this manual before operating or commissioning this device as
it contains important information relating to safety and EMC. Failure to follow
all the safety precautions may result in injury and/or damage to your
equipment.

IEC Symbol Description

Caution - Refer to the accompanying
document(s).

Direct Current

Laser Symbol

1

SECTION 1 - INTRODUCTION

The OS137 Series is a precision, miniature infrared transmitter. It measures
temperature via non-contact, and provides an analog output proportional to the
measured temperature. The OS137 Series is offered in three temperature ranges:
0 to 100ºC (32 to 212ºF), -18 to 260ºC (0 to 500ºF) and -18 to 538ºC (0 to 1000ºF).
The analog output is offered as 4 to 20 mA, 0 to 5 Vdc, 0 to 10 Vdc, 10
mV/degree C or F, or K type thermocouple.

The unit provides adjustable emissivity from 0.5 to 1.0, 10 to 1 optical field of
view, and field adjustable alarm output.

The super-compact design, 25.4 mm OD x 127 mm length (1.0" OD x 5.0" L) is
ideal to measure temperature in confined, and hard to reach places. The Stainless
Steel housing is NEMA-4 rated. The unit comes standard with a 1.82 m (6')
shielded cable.

SECTION 2 – INSTALLATION

2.1 – Unpacking

Remove the packing list and verify that you have received all your equipment. If
you have any questions about the shipment, please call OMEGA Customer
Service at:

1-800-622-2378 or 203-359-1660. We can also be reached on the internet at
www.omega.com
email: [e-mail]

When you receive the shipment, inspect the container and the equipment for any
signs of damage. Note any evidence of rough handling in transit. Immediately
report any damage to the shipping agent.

The carrier will not honor any damage claims unless all the
shipping materials are saved for inspection. After
examination and removal of contents, save packing material
and carton in the event that reshipment is necessary.

The following items are supplied in the box:

• The infrared transmitter, OS137 with the 1.82 m (6') shielded cable.

• Two mounting nuts

• The User’s Guide

The following describes the ordering information:

OS137 – * – ** , where

- * means:

-1 : 0 to 100°C (32 to 212ºF) temperature range

-2 : -18 to 260ºC (0 to 500ºF) temperature range

-3 : -18 to 538°C (0 to 1000°F) temperature range

Introduction

1

NOTE:

2

2

- ** means:

-MA : 4 to 20 mA current output

-V1 : 0 to 5 Vdc output

-V2 : 0 to 10 Vdc output

-K : K type thermocouple output

-MVC : 10 mV/ºC output

-MVF : 10 mV/ºF output

The following table lists the optional accessories:

2.2 – Electrical Connection

The shielded cable provides the power and output connections. Fig 2-1 shows
the wiring diagram for different analog outputs. Fig. 2-2 shows alarm output
connections.

Figure 2-1. General Wiring Diagram

Figure 2-2. Alarm Output Wiring Diagram

Accessories

Model No. Description

OS137-MB Mounting Bracket
OS137-WC Water/Air Cooling Jacket with Built-in Air Purge Collar
OS137-AP Air Purge Collar
OS137-LS Laser Sighting
PSR-24S Regulated 24 VDC (400 mA) Power Supply
CAL-3-IR NIST Traceable Calibration

Installation

RED

WHITE

12-24 Vdc

POWER SUPPLY

-OR-

10 mV/Deg
0/5 Vdc or 4-20 mA
or 0/10 Vdc

EARTH
GROUND

DIGITAL

VOLTMETER/

AMMETER/

RECORDER

BLACK

SHIELD

+

+

–

–

YELLOW

THERMOCOUPLE

METER/

RECORDER

RED

K TYPE

THERMOCOUPLES

+

–

OS137

WHITE

12-24 Vdc

POWER SUPPLY

EARTH

GROUND

BLACK

SHIELD

+

–

OS137

+

–

MECHANICAL

RELAY

BLACK

GREEN

3

Operation

3

SECTION 3 – OPERATION

3.1 – Measuring Temperature

Before starting to measure temperature, make sure the following check list is met:

 The power and output connections are made (Fig 2-1).

 The target is larger than the optical field of view of the transmitter (Fig 3-1).

 Use the Laser Sighting accessory (optional), to align the transmitter to the

center of the target area.

 Remove the End Cap to get to the Emissivity Single Turn Pot (Fig. 3-2). Set

the Emissivity Pot based on the target surface. Then put back the End Cap.

 Make sure the output load is within the product specification.

Figure 3-1. Optical Field of View

Figure 3-2. Location of Emissivity & Alarm Adjust and Alarm Switch

SPOT DIA.* (CM)

SPOT DIA.* (IN)

DISTANCE: SENSOR TO OBJECT (FT)

D:S = 10:1

1.6 cm@0

0

40

5.6

80

9.6

210

13.6

160

17.6

200

21.6

244

26

0.65"@0"

3.0"

1.75"

5.5"

7.8"

10.2"

8

6

4

21

0

DISTANCE: SENSOR TO OBJECT (CM)

* SPOT DIAMETER MEASURED AT 90% ENERGY

ALARM

SWITCH

1- REAL TIME

2- ALARM POSITION

ALARM

ADJUST

EMISSIVITY
ADJUST

REMOVE THE SCREW TO PULL OUT

THE END CAP. THE EMISSIVITY AND

ALARM ADJUST & ALARM SWITCH ARE

LOCATED ON THE MAIN PC BOARD.

END CAP

12

1.00

0.70

0.60 0.90

0.80

0.50

Operation

3

4

3.2 – Ambient Temperature

The transmitter can operate in an ambient temperature of 0 to 70°C (32 to 158°F)
without any water cool jacket. It can operate from 0 to 200°C (32 to 392°F) with
the water cool jacket accessory, OS137-WC (Fig 3-6 & 3-7). It can operate up to
110°C (230°F) with air cooling.

There is a warm up period of 1 to 2 minutes after power up. After the warm up
period, temperature measurement can be made.

When the ambient temperature around the transmitter changes abruptly, the sensor head
goes through a thermal shock. It takes a certain amount of time for the sensor head to get
stabilized to the new ambient temperature. For example, it takes about 30 minutes for the
transmitter to stabilize from the 25°C to 50°C (77°F to 122°F) ambient temperature.

3.3 - Atmospheric Quality

Environments with smoke, dust, and fumes dirty up the optical lens, and cause
erroneous temperature readings. To keep the surface of the optical lens clean, the
air purge collar accessory is recommended, OS137-AP (Fig 3-4).

The following figures show the Mounting Bracket (OS137-MB), Air Purge Collar
(OS137-AP), Stainless Steel Housing and Water/Air Cool Jacket (OS137-WC),
with built-in air purge collar.

Figure 3-3. Mounting Bracket, OS137-MB

DIMENSIONS mm (in)

57.2

(2.25)

12.7

(0.50)

95.3

(3.75)

90

90

17.4
(0.687)

19.8

(0.78)

3.2
(1/8)

3.2

(1/8)

17.4

(0.686)

INSERT

OS137 HEAD

INTO THE HOLE

98.8

(3.89)

96.5

(3.80)

53.3

(2.10)

25.4
(1.0)

50.8
(2.0)

25.9 (1.020) DIA.

4.3 (0.170) DIA.

4.3
(0.170)

15.2
(0.6)

32.5

(1.28)

28.6

(1.125)

Figure 3-4. Air Purge Collar, OS137-AP

Figure 3-5. Stainless Steel Housing

Figure 3-6. Water/Air Cool Jacket, OS137-WC

Operation

3

5

LIGHT DIAMOND KNURL

2.5 (0.1) WIDE

DIMENSIONS mm (in)

1-20 UNEF

127

(5.0)

1.83 m
(6 ft)

42.4

(1.67)

25.4

(1.0)

DIMENSIONS mm (in)

128.6

(5.062)

7.9

(0.312)

41.2

(1.625)

1-20 UNEF

9.5

(3/8)

1-20
UNEF

BUILT-IN
AIR PURGE
COLLAR

APPLY

CLEAN AIR

INLET

OUTLET

BARB ADAPTER 3/16" ID

1/4-28 UNF THREAD

DIMENSIONS mm (in)

BARB ADAPTER 3/16" ID

1/4-28 UNF THREAD

1-20 UNEF

14.3

(0.562)

41.3

(1.625)

3.4 Alarm Setting

The unit provides 0-100% alarm setpoint adjustment. Here is an example
of an alarm setting:

• An OS137-3-MA (4/20 mA output), the alarm is to be set at 204°C
(400°F) temperature.

• Connect the alarm output as shown in Fig. 2-2.

• Remove the End Cap to get to the Alarm Switch and the Alarm Adjust
(Fig. 3-2).

• Set the Slide Switch on the main board to the Alarm position (2).

• Measure the analog output, and adjust the Alarm Potentiometer until
the output reads 10.4 mA which is 40% (204°C, 400°F) of the
temperature range -18 to 538°C, (0 to 1000°F)

40 x (20-4)

[10.4mA =

100

+ 4]

• Set the Alarm Slide Switch back to the Real Time position (1).

• If the temperature reading is below the alarm setpoint, the Alarm
Output stays low, otherwise it goes high (Alarm Condition).

• The Alarm Output can drive an external mechanical relay.

Operation

3

6

SECTION 4 - LASER SIGHT ACCESSORY

4.1 – Warnings and Caution

You may receive harmful laser radiation exposure if you do
not adhere to the warnings listed below:

• USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF

PROCEDURES OTHER THAN THOSE SPECIFIED IN THIS GUIDE MAY
RESULT IN HAZARDOUS RADIATION EXPOSURE.

• DO NOT LOOK AT THE LASER BEAM COMING OUT OF THE LENS OR

VIEW IT DIRECTLY WITH OPTICAL INSTRUMENTS – EYE DAMAGE CAN
RESULT.

• USE EXTREME CAUTION WHEN OPERATING THE LASER SIGHT

ACCESSORY.

• NEVER POINT THE LASER ACCESSORY AT A PERSON.

• KEEP THE LASER SIGHT ACCESSORY OUT OF REACH OF ALL

CHILDREN.

Do not attempt to open the laser sight accessory. There are no
user serviceable parts inside.

4.2 – Operating the Laser Sight Accessory

The laser sight accessory screws onto the front of the transmitter sensor head.
This accessory is only used for alignment of the transmitter head to the target
area. After the alignment process, the accessory has to be removed from the front
of the transmitter head before temperature measurement is made.

The laser sight accessory is powered from a small, compact battery pack
(included with the accessory). Connect the battery pack to the accessory using
the cable provided. Aim at the target, and turn on the battery power using the
slide switch on the battery pack. Adjust the sensor head position so that the laser
beam points to the center of the target area. Turn off the battery pack, and
remove the laser sighting accessory from the sensor head (Fig 4-1).

CAUTION:

WARNING:

Laser Sight Accessory

4

7

8

Figure 4-1. Laser Sighting Accessory, OS137-LS

Figure 4-2. Laser Warning Label

LASER WARNING LABEL

DC POWER JACK

LED LASER
POWER
INDICATOR

LASER

BEAM

22.2

(0.875)

50.8

(2.0)

38.1

(1.5)

POWER

CABLE

ON/OFF

SWITCH

BATTERY PACK

POWER SUPPLY

OS137

Dimensions mm (in)

OUTPUT <1 mW, WAVELENGTH 630-670 nm, CLASS II (2) LASER
PRODUCT. COMPLIES WITH FDA 21CFR 1040.10 & EN60825-1/11.2001

LASER RADIATION - DO NOT STARE INTO BEAM

LASER RADIATION DO NOT STARE
INTO BEAM OR VIEW DIRECTLY WITH
OPTICAL INSTRUMENTS. CLASS 2
LASER PRODUCT.

®

CAUTION

AVOID EXPOSURE. LASER

RADIATION IS EMITTED

FROM THIS APERTURE.

Laser Sight Accessory

4

9

SECTION 5 – SPECIFICATIONS

5.1 - General

Temperature Range:

OS137-1 0 to 100ºC (32 to 212ºF)
OS137-2 -18 to 260ºC (0 to 500ºF)
OS137-3 -18 to 538°C (0 to 1000°F)

Accuracy: @22ºC (72ºF) ambient 1.5% of Rdg or 2.0ºC (3.5ºF) whichever is greater

Emissivity of 0.95 or greater

Repeatability: 1% of Rdg or 1.0ºC (2.0ºF) whichever is greater

Field of View: 10 to 1

Spectral Response: 8 to 14 microns

Response Time: 150 msec, 0 to 63% of final value

Emissivity: 0.5 to 1.0, adjustable via Single Turn Pot

Alarm Output: Voltage, 100 mA Drive

Alarm Set Point: 0 to 100% Adj., set via Pot

Analog output:

MA 4 to 20 mA
V1 0 to 5 Vdc
V2 0 to 10 Vdc
K K type thermocouple, compensated
MVC 10 mV/ºC
MVF 10 mV/ºF

Output Load Requirements:

Min. Load (0 to 5 Vdc) 2 K-Ohms
Min. Load (0 to 10 Vdc) 4 K-Ohms
Max. Load (4 to 20 mA) (Power Supply – 4)/20 mA
Min. Load (10 mV/Deg) 10 K-Ohms
Min. Load (K T/C) 100 K-Ohms

Operating Ambient Temperature:

No Water Cooling 0 to 70ºC (32 to 158ºF)
With Water Cooling (OS136-WC) 0 to 200ºC (32 to 392ºF)
With Air Cooling (OS136-WC) 0 to 110°C (32 to 230°F)

Operating Relative Humidity: Less than 95% RH, non-condensing

Water Flow Rate for OS136-WC: 0.25 GPM, room temperature, minimum

Air Flow Rate for OS136-WC 5 CFM (2.4 liters/sec)

Warm up Period: 1 to 2 minutes

Thermal Shock: About 30 minutes for 25ºC (77°F) abrupt

ambient temperature change

Air Flow Rate for Air Purge Collar 1 CFM (0.5 liters/sec.)

Transmitter Housing: Stainless Steel 316, NEMA-4 & IP65 rated

Power: 12 to 24 VDC @ 50 mA

Dimensions: 25.4 OD x 127 L mm (1.0" OD x 5.0" L)

Weight: 0.80 lb (363 g)

Specifications

5

10

5.2 - Laser Sight Accessory

Laser Wavelength (Color): 630 - 670 nm (red)

Operating Distance: Up to 9.1 m (30 ft)

Max. Laser Power Output: Less than 1 mW @ 22ºC (72°F) ambient

European Classification: Class 2, EN60825-1/11.2001

FDA Classification: Class II Laser Product. Complies with

21 CFR 1040.10

Laser Beam Diameter: Less than 5 mm

Beam Divergence: Less than 2 mrad

Operating Temperature: 0 to 50°C (32 to 122°F)

Operating Relative Humidity: Less than 95% RH, non-condensing

Power Switch: ON/OFF, Slide Switch on the battery pack

Power Indicator: Red LED

Power: Battery pack, 3 VDC

Caution & Certification Label: Located on the head sight circumference

Identification Label: Located on the head sight circumference

Aperture Label: Located on the head sight circumference

Dimensions: 38 OD x 50.8 L mm (1.5" OD x 2" L)

Specifications

5

Emissivity Table

6

11

Material Emissivity (ε)

Aluminum – pure highly polished plate . . . . . . . . . . . . . . . . . . . . . . . . 0.04 to 0.06

Aluminum

– heavily oxidized . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.20 to 0.31

Aluminum

– commercial sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.09

Brass

– dull plate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.22

Brass

– highly polished, 73.2% Cu, 26.7% Zn . . . . . . . . . . . . . . . . . . . . . . . . . 0.03

Chromium

– polished. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.08 to 0.36

Copper

– polished. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.05

Copper

– heated at 600°C (1112°F) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.57

Gold

– pure, highly polished or liquid. . . . . . . . . . . . . . . . . . . . . . . . . 0.02 to 0.04

Iron and steel (excluding stainless)

– polished iron . . . . . . . . . . . . . . . . 0.14 to 0.38

Iron and steel (excluding stainless)

– polished cast iron. . . . . . . . . . . . . . . . . . . 0.21

Iron and steel (excluding stainless)

– polished wrought iron . . . . . . . . . . . . . . . 0.28

Iron and steel (excluding stainless)

– oxidized dull wrought iron . . . . . . . . . . . . 0.94

Iron and steel (excluding stainless)

– rusted iron plate . . . . . . . . . . . . . . . . . . . 0.69

Iron and steel (excluding stainless)

– polished steel. . . . . . . . . . . . . . . . . . . . . . 0.07

Iron and steel (excluding stainless)

– polished steel oxidized at

600°C (1112°F). . . . . . . . . . . . . . . . . . . . 0.79

Iron and steel (excluding stainless)

– rolled sheet steel . . . . . . . . . . . . . . . . . . . 0.66

Iron and steel (excluding stainless)

– rough steel plate . . . . . . . . . . . . . 0.94 to 0.97

Lead

– gray and oxidized . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.28

Mercury

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.09 to 0.12

Molybdenum filament

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.10 to 0.20

Nickel

– polished . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.07

Nickel

– oxidized at 649 to 1254°C (1200 to 2290°F) . . . . . . . . . . . . 0.59 to 0.86

Platinum

– pure polished plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.05 to 0.10

Platinum

– wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.07 to 0.18

Silver

– pure and polished . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.02 to 0.03

Stainless steel

– polished . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.07

Stainless steel

– Type 301 at 232 to 941°C (450 to 1725°F). . . . . . . . . 0.54 to 0.63

Tin

– bright . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.06

Tungsten

– filament . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.39

Zinc

– polished commercial pure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.05

Zinc

– galvanized sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.23

METALS

Emissivity Table

6

12

Material Emissivity (ε)

Asbestos Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.96

Asphalt, tar, pitch

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.95 to 1.00

Brick

– red and rough . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.93

Brick

– fireclay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.75

Carbon

– filament . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.53

Carbon

– lampblack - rough deposit . . . . . . . . . . . . . . . . . . . . . . . . . . 0.78 to 0.84

Glass

- Pyrex, lead, soda . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.85 to 0.95

Marble

– polished light gray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.93

Paints, lacquers, and varnishes

– Black matte shellac . . . . . . . . . . . . . . . . . . . . 0.91

Paints, lacquers, and varnishes

– aluminum paints . . . . . . . . . . . . . . . . 0.27 to 0.67

Paints, lacquers, and varnishes

– flat black lacquer . . . . . . . . . . . . . . . 0.96 to 0.98

Paints, lacquers, and varnishes

– white enamel varnish . . . . . . . . . . . . . . . . . . 0.91

Porcelain

– glazed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.92

Quartz

– opaque . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.68 to 0.92

Roofing Paper

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.91

Tape

– Masking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.95

Water

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.95 to 0.96

Wood

– planed oak . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.90

NONMETALS

OS137 Series Miniature Non-Contact Infrared Temperature Sensor/Transmitter

6

13

NOTES:

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 the
company 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.

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 2008 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.

M4015/0108

Where Do I Find Everything I Need for

Process Measurement and Control?

OMEGA…Of Course!

Shop online at omega.com

SM

TEMPERATURE

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

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Wire: Thermocouple, RTD & Thermistor

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Recorders, Controllers & Process Monitors

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