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Fixed infrared temperature sensor and Transmitter


Compact fixed infrared temperature sensor and Transmitter | OS137A

Compact fixed infrared temperature sensor and Transmitter

  • These products have been moved to a new product page, OS130A-Series
  • Fixed infrared temperature sensor with 3 Temperature Ranges Available:
  • OS137A-1: 0 to 100°C (32 to 212°F)
  • OS137A-2: -18 to 260°C (0 to 500°F)
  • OS137A-3: -18 to 538°C (0 to 1000°F)
  • Sensor and Transmitter Combined
  • Adjustable Emissivity
  • Adjustable Alarm Setpoint and Output
  • Packaged in a 25 mm OD by 127 mm Long Stainless Steel IP65 Rated Housing
  • 10:1 Optical Field of View
  • 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 fixed infrared temperature sensor and Transmitter/transmitter model OS137A, provides a variety of features and options packaged in 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 fixed mount unit comes with 2 hex nuts, 1.8 m (6') shielded cable for power and output connections, and an operator’s manual.

Temp Range:
    OS137A-1: 0 to 100°C (32 to 212°F)
    OS137A-2: -18 to 260°C (0 to 500°F)
    OS137A-3: -18 to 538°C (0 to 1000°F)
Accuracy @ 22°C (72°F) Ambient : 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: 5.5 to 14 microns
Emissivity: 0.5 to 1.0, adjustable via a single turn pot
Response Time: 150 msec, 0 to 63% of final value
    -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
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
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
All amounts shown in EUR, GBP, or USD
Note: * Insert “1” for 0 to 100°C; Insert “2” for -18 to 260°C; Insert “3” for -18 to 538°C.
Comes complete with two mounting nuts and operator’s manual.
To order with longer power/output cable, up to 100 ft, add suffix “-(**)FT” to model number, and add an additional cost for each additional foot over 6 ft.
** Specify length in feet.
OS137-LS laser sighting: 1 unit suitable for aligning multiple heads. Used during installation only.
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