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Compact Non-Contact Infrared
Temperature Sensor/Transmitter
OS137
shown smaller
than actual size.
OS137 Series
†
Optional
U 3 Temperature Ranges Available:
OS137-1: 0 to 100°C (32 to 212°F)
OS137-2: -18 to 260°C (0 to 500°F)
OS137-3: -18 to 538°C (0 to 1000°F)
U Sensor and Transmitter Combined
U Adjustable Emissivity
U Adjustable Alarm Setpoint and Output
U Packaged in a 25 mm (1.0") OD by
127 mm (5.0") Long Stainless Steel
NEMA 4 (IP65) Rated Housing
U 10:1 Optical Field of View
U 4 to 20 mA, 0 to 5 Vdc, 0 to 10 Vdc,
10 mV/Deg, and Type K Thermocouple
Outputs Available
The OMEGA® compact high performance industrial
infrared sensor/transmitter model OS137 provides
variety of features and options packaged into a small
stainless steel housing. The standard features are
adjustable emissivity, 10 to 1 optical field of view,
adjustable alarm set point and voltage output to drive
external relays, and 6 pre-selected analog outputs
that can easily be interfaced to all meters, controllers,
data loggers, recorders, computer boards, and PLCs.
The unit comes with 2 hex nuts, 1.8 m (6') shielded
cable for power and output connections, and complete
operator’s manual.
†
Refer to accessories chart on next page for NIST calibration
ordering information.
(INCH)
0.65'' @ 0''
1.6 cm @ 0
Compact stainless steel
NEMA 4 housing.
2.9
1.7
3.0
5.0
7.0
10:1
9.0
(INCH)
4.1
11.0
5.3
13.0
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Specifications
CNi8DH shown actual size.
Temp Range:
OS137-1: 0 to 100°C (32 to 212°F)
OS137-2: -18 to 260°C (0 to 500°F)
OS137-3: -18 to 538°C (0 to 1000°F)
Accuracy: 1.5% rdg or 3.5°F (2°C)
whichever is greater
Repeatability: 1% rdg or 2°F (1°C)
Field of View: 10 to 1
Spectral Response: 5 to 14 microns
Emissivity: 0.4 to 1.0, adjustable via a
single turn pot
Response Time: 150 msec, 0 to 63% of
final value
Outputs:
-MA: 4 to 20 mA
-V1: 0 to 5 Vdc
-V2: 0 to 10 Vdc
-K: K thermocouple
-MVF: 10 mV/°F
-MVC: 10 mV/°C
Alarm Output: Voltage, 100 mA drive
Connect your OS137 to a precision controller model CNi8DH, sold
separately.
SM
Alarm Set Point: 0 to 100 % adj,
set via pot
Power: 12 to 24 Vdc @ 50 mA
Operating Temperature:
With No Cooling: 0 to 70°C
With Water Cooling: 0 to 200°C
With Air Cooling: 0 to 110°C
Operating Relative Humidity:
Less than 95% RH, non-condensing
OMEGACARESM extended warranty program
is available for models shown on this page.
Ask your sales representative for full details
when placing an order. OMEGACARE
covers parts, labor and equivalent loaners.
Extended Warranty
Program
SM
Housing: Stainless steel,
NEMA 4 (IP65)
Dimensions: 25.4 OD x 127 mm L
(1 x 5")
Weight: 226 g (0.5 lb)
LASER SIGHTING
Wavelength (Color): 630-670 nm (red)
Operating Distance: Up to 9.1 m (30')
Max Laser Power Output:
Less than 1 mW
European Classification:
Class 2, EN60825-1/11.2001
FDA Classification: Class II, complies
with 21 CFR 1040.10
Laser Beam Diameter: Less than 5 mm
Beam Divergence: Less than 2 mrad
Power Switch: Slide switch on the
battery pack
Power Indicator: Red LED
Caution and Certification Label:
Located on the head circumference
Aperture and Identification Label:
Located on the head circumference
To Order Visit omega.com/os137 for Pricing and Details
Model No. Description
OS137-(*)-K Infrared transmitter with K thermocouple output
OS137-(*)-MV-F Infrared transmitter with 10 mV/°F output
OS137-(*)-MV-C Infrared transmitter with 10 mV/°C output
OS137-(*)-MA Infrared transmitter with 4 to 20 mA output
OS137-(*)-V1 Infrared transmitter with 0 to 5 Vdc output
OS137-(*)-V2 Infrared transmitter with 0 to 10 Vdc output
* Insert “1” for 0 to 100°C (32 to 212°F); Insert “2” for -18 to 260°C (0 to 500°F);
Insert “3” for -18 to 538°C (0 to 1000°F).
Comes complete with two mounting nuts and operator’s manual.
To order with longer power/output cable, up to 30 m (100'), add suffix “-(**)FT” to model
number, and add an additional cost for each additional foot over 1.8 m (6').
** Specify length in feet.
Ordering Examples: OS137-1-MA, infrared transmitter with temperature range of 0 to 100°C
(32 to 212°F) and 4 to 20 mA output.
OCW-3, OMEGACARE
OS137-1-V1 and CNi8DH33, infrared transmitter with temperature range of 0 to 100°C
(32 to 212°F) and 0 to 5 Vdc output, and 1⁄8 DIN temperature controller.
OS137-1-V1-26FT, OS137 with 26 feet of power/output cable.
SM
extends standard 1-year warranty to a total of 4 years.
Accessories
Model No. Description
OS137-MB Mounting bracket
OS137-AP Air purge collar
OS137-WC Water/air cool jacket
OS137-LS†† Laser sighting
PSR-24S Regulated power supply, 24 Vdc, 400 mA, screw terminal
PSR-24L Regulated power supply, 24 Vdc, 400 mA, UL, stripped leads
PSR-24L-230 Regulated power supply, 24 Vdc, 400 mA, 6' cord with stripped leads, 230 Vac input, CE
PSU-93 Unregulated power supply, 16 to 23 Vdc, 300 mA max, screw terminal
CAL-3-IR† NIST-traceable calibration
††
OS137-LS laser sighting: 1 unit suitable for aligning multiple heads. Used during installation only.
Ordering Example: OS137-MB, mounting bracket.
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