Compact Infrared Pyrometer – Raytek CI Series


  • Type J or K, or 0-5 V output
  • IP 65 (NEMA-4) stainless steel electronics housing
  • 4:1 optics at 90% energy
  • 350 mSec (95%) response time
  • Powered by 12–24 VDC at 20 mA
  • Accessories for cooling and air purging

The Raytek CI non contact infrared pyrometer is compact and easy to install. Designed for easy integration into a standard 4-wire system, the CI sensor can easily replace traditional contact probes with a J-type or K-type thermocouple output. A 0-5 volt output is if your application is susceptible to noise or requires a longer cable run.

The CI unit’s onboard electronics are protected by a rugged IP 65 (NEMA-4) stainless steel housing, allowing the sensor to function in ambient temperatures to 70°C (160°F) without cooling. With water cooling, the CI sensor can withstand ambient temperatures to 260°C (500°F).


Environmental Rating IP65 (IEC 529)
Ambient Temperature
Sensing head 0 to 70°C
With air cooling up to 90°C
With water cooling up to 260°C
Storage Temperature -30 to 85°C
Relative Humidity 10 to 95%, non-condensing
Shock IEC 68-2-27, 50 g’s, 11 ms, any axis
Vibration IEC 68-2-27, 3 g’s, any axis, 11–200 Hz
Dimension L 89 mm, Ø 19 mm
Weight 130 g
Outputs User-selectable thermocouple output (model specific, either J or K) or voltage output 10 mV/°C
Cable Length 1 m standard, longer cables optional
Output Impedance (J/K) 50 Ω
Minimum Load Impedance (mV) 50 kΩ
Power Supply 12 – 24 VDC, ±5%, 20 mA



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