IR thermometer optris CTlaser 3M for measurement of metals with low temperatures

The infrared thermometer optris CTlaser 3M is perfectly suited for measurements of low metal temperatures and composite materials. It offers a temperature range between 50 °C and 1,800 °C (122 °F and 3272 °F) and can be employed in up to 85 °C (185 °F) without additional cooling.

Due to its extremely short response time of 1 ms, the highly efficient IR thermometer allows the surveillance of fast processes and measures reliably and precisely even on smallest measuring fields of up to 0.7 mm (0.03 in). Selectable outputs and various digital interfaces offer a high variability for the evaluation of the measured data.

Important specifications

• Temperature range:
  50°C to 1,800°C
• Spectral range: 2.3 µm
• Response time: 1 ms
  
• Starting at $980
  

Technical Details of the optris CTlaser 3M

Measurement Specifications

• Temperature range¹⁾ (scalable via software):'
  50 °C ... 400 °C (122 °F ... 752 °F) (3ML)

  100 °C ... 600 °C (212 °F ... 1112 °F) (3MH)
  150 °C ... 1000 °C (302 °F ... 1832 °F) (3MH1)
  200 °C ... 1500 °C (392 °F ... 2732 °F) (3MH2)
  250 °C ... 1800 °C (482 °F ... 3272 °F) (3MH3)

• Spectral range: 2.3 µm
  
• Optical resolution (90 % energy):

  60:1 (3ML)
  100:1 (3MH)
  300:1 (3MH1-H3)

• System accuracy²⁾ (at T_amb= 23 ± 5 °C [73.4 ±41 °F]):
   ± (0.3 % of reading + 2°C [+ 3.6 °F])
• Repeatability (at T_amb = 23 ± 5 °C [73.4 ±41 °F]): ± (0.1 % of reading + 1°C [+ 1.8 °F])
• Temperature resolution (digital): 0.1 K
• Exposure time (90 % signal)³⁾: 1 ms
  
• 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 ... 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 ... 125 °C (-40 °F ... 257 °F)
  electronics:
  -40 °C ... 85 °C (185 °F)
  
• Relative humidity: 10 - 95 %, non condensing
• Shock: IEC 60068-2-27 (25 G and 50 G)
  
• Vibration:
  • IEC 60068-2-6 (sinus shaped)
  • IEC 60068-2-64 (broadband noise)
• Weight:
  sensing head: 600 g (21.2 oz)
  electronics: 420 g (14.8 oz)
  

Electrical Specifications

• Outputs / analog: 0/4 - 20 mA, 0-5/10 V, thermocouple J, K
  
• 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

• OPTCTL3ML: 50 ... 400 °C (122 ... 752 °F) / 2.3 μm / 60:1 / 1 ms
• OPTCTL3MH: 100 ... 600 °C (212 ... 1112 °F) / 2.3 μm / 100:1 / 1 ms
• OPTCTL3MH1: 150 ... 1000 °C (302 ... 1832 °F) / 2.3 μm / 300:1 / 1 ms
• OPTCTL3MH2: 200 ... 1500 °C (392 ... 2732 °F) / 2.3 μm / 300:1 / 1 ms
• OPTCTL3MH3: 250 ... 1800 °C (482 ... 3272 °F) / 2.3 μm / 300:1 / 1 ms

¹⁾ T_object > T_{sensing head} + 25°C (77 °F)
²⁾ ε = 1, response time 1 s
²⁾ with dynamic adaptation at low signal levels

Areas of application for the infrared thermometer optris CTlaser 3M

The IR thermometer optris CTlaser 3M, like its related pyrometers CTlaser 1M and 2M, has been designed for measurement of metallic surfaces. Temperature controls during welding, soldering, and forging-die forming processes do not pose a problem.

The spectral range of 2.3 µm allows for precise measurement of composite material surfaces made of e.g. carbides, polymeric plastics, or ceramics.

Additional downloads (manuals and STEP files) for the infrared thermometers of the high performance series

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.