Technical Details of the optris CT 2M

Measurement Specifications

• Temperature range (scalable via software):
  485°C … 1050°C (905 °F … 1929 °F) (1ML)
  650°C … 1800°C (1202 °F … 3272 °F) (1MH)
  800°C … 2200°C (1472 °F … 3992 °F) (1MH1)
  250°C … 800°C (482 °F … 1472) (2ML)
  385°C … 1600°C (725 °F … 2912 °F) (2MH)
  490°C … 2000°C (914 °F … 3632 °F) (2MH1)
• Spectral range: 1.0 μm (1M) / 1.6 μm (2M)
• Optical resolution (90% energy):
  CT 1ML / 2ML: 40:1 (2.7 mm @ 110 mm [0.11 in @ 4.33 in])
  CT 1MH / 1MH1 / 2MH / 2MH1: 75:1 (1.5 mm @ 110 mm [0.06 in @ 4.33 in])
• System accuracy¹⁾ (at ambient temperature 23 ± 5°C [73.4 ±41 °F]): ± (0.3% of reading + 2°C [+ 3.6 °F])
  
• Repeatability (at ambient temperature 23 ± 5°C [73.4 ±41 °F]): ± (0.1% of reading + 1°C [+ 1.8 °F])
  
• Temperature resolution (display): 0.1 K
• Exposure time²⁾: 1 ms (90%)
• Emissivity / Gain (adjustable via programming keys or software): 0.100 – 1.100
• Transmissivity / Gain (adjustable via programming keys or software): 0.100 – 1.100
• Signal processing (parameter adjustable via programming keys or software, respectively):
  peak hold, valley hold, average, extended hold function with threshold and hysteresis

General Specifications

• Environmental rating: IP 65 (NEMA-4)
• Ambient temperature:
  sensing head: -20°C … 100°C (-4 °F … 212 °F) (1M); -20°C … 125°C (-4 °F … 257 °F) (2M)
  electronics: -20°C … 85°C (-4 °F … 185 °F)
• Storage temperature:
  sensing head: -40°C … 100°C (-40 °F … 212 °F) (1M); -20°C … 125°C (-4 °F … 257 °F) (2M)
  electronics: -40°C … 85°C (-40 °F … 185 °F)
• Relative humidity: 10 – 95%, non condensing
• Vibration:IEC 60068-2-6 (sinus shaped), IEC 60068-2-64 (broadband noise)
• Shock: IEC 60068-2-27 (25G and 50G)
• Weight:
  sensing head 40 g (1.4 oz)
  electronics 420 g (14.8 oz)

Electrical Specifications

• Output / analog: 0/4 – 20 mA, 0-5/10 V, thermocouple J, K, alarm
• Output / alarm: 24 V / 50 mA (open collector)
• Optional: relay: 2 x 60 V DC/42 V AC_eff; 0.4 A; optically isolated
• Output / digital (optional): USB, RS232, RS485 (optional), Modbus RTU, Profibus DP, Ethernet
• Output impedances:
  mA max. 500 Ω (with 8-36 V DC)
  mV min. 100 kΩ load impedance
  thermocouple 20 Ω
• Inputs: programmable functional input for external emissivity setting /ambient temperature compensation, trigger (reset of hold functions)
• Cable length: 3 m (standard), 8 m, 15 m (9.8 ft [standard], 26.2 ft, 49.2 ft)
• Power supply: 8-36 V DC
• Current draw: max. 100 mA

Versions

Part number: temperature range / spectral range / optics / max. ambient temperature / cable length

• OPTCT2ML: 250 … 800 °C (482 … 1472 °F) / 1.6 μm / 40:1 / 125°C (257 °F) / 3 m (9.8 ft) cable
• OPTCT2MH: 385 … 1600 °C (725 … 2912 °F) / 1.6 μm / 75:1 / 125°C (257 °F) / 3 m (9.8 ft) cable
• OPTCT2MH1: 490 … 2000 °C (914 … 3632 °F) / 1.6 μm / 75:1 / 125°C (257 °F) / 3 m (9.8 ft) cable

¹⁾ Ɛ = 1, Exposure time 1 s
²⁾ with dynamic adaptation at low signal levels

Areas of application for the pyrometer optris CT 2M

The infrared thermometers optris CT 1M and 2M are employed for temperature measurements requiring short measuring wavelengths. They precisely and reliably measure e.g. metallic surfaces in metal processing (e.g. welding, sintering) as well as metal oxides and ceramics in temperatures of up to 2,200°C.

Infrared software optris Compact Connect included

The temperature analysis software optris Compact Connect has been developed specifically for the extensive documentation and analysis of temperature measurement data of our stationary infrared thermometers. It is license-free and included in every pyrometer shipment.