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Rugged Infrared Thermocouple 17° (3:1) Field of View Integral Air Cool/Purge Head

OS36-3 Series

Rugged Infrared Thermocouple | OS36-3 Series

Rugged Infrared Thermocouple

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  • High Quality Infrared Thermocouple
  • All Stainless Steel Construction
  • 3:1 Field of View
  • Built-in Air Purge
  • J, K, E or T Thermocouple Output Signal
  • Self-Powered
  • Temperature Compensated
Infrared Temperature Measurement Instruments - View related products


The OS36-3 Series is ideal for use in paint or ink environments which require the sensor to be mounted remotely from the target. In addition to the ruggedness and ease-of-use of the original OS36 Series, the new OS36-3 Series is hermetically sealed and is equipped with an internal air cool/purge system. As do all infrared thermocouples, this new series exceeds all applicable NEMA standards and is intrinsically safe when used with appropriate intrinsic safety barriers.

Range CodeTemperature Range (2% accuracy)
50F-18 to 27°C (0 to 80°F)
80F10 to 49°C (50 to 120°F)
98.6F16 to 39°C (60 to 102°F)
140F25 to 80°C (80 to 180°F)
180F70 to 104°C (160 to 220°F)
240F95 to 130°C (200 to 270°F)
280F125 to 155°C (260 to 310°F)
340F145 to 175°C (290 to 350°F)
440F170 to 250°C (340 to 480°F)

Accuracy: ±2% of nominal range; blackbody source
Repeatability: ±1% rdg
Temperature Coefficient: ±0.02% nominal range per °F
Temperature Compensation Range: Complies with ASTM standards over 27 to 93°C (80 to 200°F) range
Operating Ambient Temperature Range: -18 to 85°C (0 to 185°F) with internal cold junction compensation
Air Purge: Built-in
Ambient Temperature Compensation: With air flow of 1.1 SCFM (20 psig), max is 120°C (248°F)
Storage Temperature Range: -45 to 121°C (-50 to 250°F)
Response Time: 80 ms
Spectral Response: 6.5 to 14 microns
Range: -45 to 650°C (-50 to 1200°F)†
Field of View: 17° (3:1)
Minimum Spot Size: 6 mm (0.35")
Output Impedance: 4 to 8kΩ (varies by model)
Dimensions: 45 L x 13 mm Dia. (1.76 x 0.50"); 0.9 m (36") PFA coated lead wires
Weight: 40 g (1.4 oz) with cable
†See chart for linear ranges. Measurement is practical beyond thermocouple table values by use of radiation laws. Polynomials available upon request.

Use the "Part Number Builder" and Spec Sheet to configure available versions
Place Order(Specify Model Number)
Part Number/Desc.
Consult Sales  
Rugged IR thermocouple sensor type T, with 10 to 49°C/80 to 180°F range
Consult Sales  
Rugged IR thermocouple sensor type T, with 26 to 82°C (80 to 180°F) range
Consult Sales  
Rugged IR thermocouple sensor type T, with 70 to 104°C/160 to 220°F range
All prices on this site are shown in Singapore Dollars.

Part Number Builder

Option Descriptions:

(1) Thermocouple Type select from:
J for Type J
K for Type K
T for Type T
E for Type E

(2) Temperature Range select from:
50F for –18 to 27°C/0 to 80°F
80F for 10 to 49°C/50 to 120°F
98.6F for 16 to 39°C/60 to 102°F
140F for 25 to 80°C/80 to 180°F
180F for 70 to 104°C/160 to 220°
240F for 95 to 130°C/200 to 270°F
280F for 125 to 155°C/260 to 310°F
340F for 145 to 175°C/290 to 350°F
440F for 170 to 250°C/340 to 480°F

(3) Connector Type select from:
Nothing(leave field blank) for Standard Unit
-GMP for Subminiture low-noise T/C connector pair
-GST for Standard size low-noise T/C connector pair
Note: All combinations may not be valid, check spec sheet for valid part numbers.
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