Technical Details of the optris CTlaser MT

Measurement Specifications

• Temperature range (scalable via programming keys or software): 200°C … 1,650°C (392 °F … 2912 °F)
• Spectral range: 3.9 µm
• Optical resolution (90% energy): 45:1
• Selectable focus:
  CF1 1.6 mm @70 mm (0.06 in @ 2.76 in)
  CF2 3.4 mm @ 150 mm (0.13 in @ 5.91 in)
  CF3 4.5 mm @ 200 mm (0.18 in @ 7.87 in)
  CF4 10 mm @ 450 mm (0.39 in @ 17.2 in)
  SF 27 mm @ 1200 mm (1.06 in @ 47.2 in)
• System accuracy¹⁾ (at T_amb= 23 ± 5°C [73.4 ±41 °F]): ± 1%²⁾
• Repeatability (at T_amb = 23 ± 5°C [73.4 ±41 °F]): ±0.5% or ±0.5°C (±0.9 °F) ²⁾
• Temperature resolution (digital): 0.1 K
• Response time (90% signal)³⁾: 10 ms
• Emissivity / Gain (adjustable via programming keys or software): 0.100 – 1.100
• Transmissivity / Gain (adjustable via programming keys or software): 0.100 – 1.000
• 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 … 85°C (-4 °F … 185 °F) (50°C [122 °F] with laser ON)
  electronics: -20°C … 85°C (-4 °F … 185 °F)
• Storage temperature:
  sensing head: -40°C … 85°C (-40 °F … 185 °F)
  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: 600 g (21.2 ft)
  electronics: 420 g (14.8 ft)

Electrical Specifications

• Outputs / analog:
  channel 1: 0/4 – 20 mA, 0 – 5/10 V, thermocouple J, K
  channel 2: sensing head temperature (-20 – 85°C (-4 °F … 185 °F) as 0 – 5 V or 0 – 10 V), alarmoutput
• Output / alarm: 24 V / 50 mA (open collector)
• Optional: relay: 2 x 60 V DC/42 V AC_eff; 0.4 A; optically isolated
• Outputs/ digital (optional): USB, RS232, RS485, Modbus RTU, Profibus DP, Ethernet
• Output impedances:
  mA max. 500 Ω (with 5 – 36 V DC)
  mV min. 100 kΩ load impedance
  thermocouple 20 Ω
• Inputs: programmable functional inputs for external emissivity adjustment, 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. 160 mA
• Laser 635 nm: 1mW, ON/OFF via electronic box or software

Versions

Part number: temperature range / spectral range / optics / response time

• OPTCTLMT: 200-1450°C (392 … 2642 °F) / 3.9 μm / 45:1 / 10 ms
• OPTCTLMTH: 400-1650°C (752 … 2912 °F) / 3.9 μm / 45:1 / 10 ms

¹⁾ ε = 1, response time 1 s
²⁾ for object temperatures above 300°C (572 °F)
²⁾ with dynamic adaptation at low signal levels

Areas of application for the infrared thermometer optris CTlaser MT

The two-part IR thermometer CTlaser MT succeeds where most other pyrometers fail: in measuring temperatures through glass and flames.

This feature makes it especially interesting for industrial high-temperature applications with temperatures up to 1,650°C and it is thus employed in e.g. surveillance of metallic work pieces in ovens, measurements in chemical reactors, or temperature controls of refractory linings in kilns.

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.