Technical Details of the optris CTratio 2M

Measurement Specifications

• Temperature range (scalable via programming keys or software):
  

  1-Channel	2-Channel
  250 … 1000 °C (482 … 1832 °F)	275 … 1000 °C (527… 1832 °F) (2ML)
  375 … 1500 °C (707… 2732 °F)	400 … 1500 °C (752 … 2732 °F) (2MH)
  500 … 3000 °C (932 … 5432 °F)	550 … 3000 °C (1022 … 5432 °F) (2MH1)

• Spectral range: 1.45 – 1.75 µm
• Optical resolution (90% energy):
  38:1 (2ML)
  50:1 (2MH)
  100:1 (2MH1)
• System accuracy¹⁾ (at T_amb= 23 ± 5 °C) [at Tamb = 73 ±41 °F]: ± (0,5 % of reading + 2 °C [36 °F])
• Repeatability (at T_amb = 23 ± 5 °C [73 ± 41 °F]): ± 0.3 % of reading
• Temperature resolution (>900°C [1652 °F]): 0.1 K
• Exposure time (90% signal)²⁾: 1 ms – 10 s
• Slope (adjustable via programming keys or analog input): 0.800 – 1.200
• Emissivity (adjustable via programming keys or analog input): 0.050 – 1.000
• Signal processing (parameter adjustable via programming keys or software, respectively):
  1 color / 2 color mode; attenuation monitoring / alarms; 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 … 200°C (-4 … 392 °F) (optional to 315 °C [599 °F])
  electronics: 0°C … 50 °C (32 °F … 122 °F)
• Storage temperature:
  sensing head: -40°C … 200°C (-40 … 392 °F)
  electronics: -40°C … 85°C (-40 °F … 185 °F)
• Relative humidity: 10 – 95%, non condensing
• Vibration (sensor): IEC 60068-2-6 (sinus shaped), IEC 60068-2-64 (broad band noise)
• Shock (sensor): IEC 60068-2-27 (25G and 50G)
• Weight:
  Fiber cable (3 m[9.8 ft]) with sensing head: 210 g (7.4 oz)
  electronics: 420 g (14.8 ft)

Electrical Specifications

• Outputs / analog: 2x 0/4-20 mA (12 bit) / optional: 2x 0/4-20 mA (16 bit) isolated
• Digital Interface: USB (Micro-USB, USB-C and USB-A cable included)
• Digital interfaces (optional): RS232, RS485
• Optional: Relay: 2 x 60 V DC/42 V AC_eff; 0,4 A; optically isolated
• Output impedances:
  mA max. 500 Ω (with 8 – 30 V DC)
  mV min. 100 kΩ load impedance
• I/O-Pins: Three programmable in-/outputs; selectable as alarm output (open collector 24 V/1 A), input for triggered signal output and peakhold function or as analog input for external emissivity or slope adjustment
• Fiberoptics length: 3 m (standard), 8 m, 15 m (9.8 ft [standard], 19.7 ft, 49.2 ft)
• Power supply: 8-30 V DC or USB powered
• Aiming Laser: Laser 520 nm, <1 mW, ON/OFF via electronic box or software

Versions

Part number: temperature range / spectral range / optical resolution

• OPTCTRF2ML: 250 (275)-1400 °C ) / 1,45 – 1,75 μm / 38:1
• OPTCTRF2MH: 375 (400)-1500 °C (707… 2732 °F) / 1,45 – 1,75 μm / 50:1
• OPTCTRF2MH1: 500 (550)-3000 °C (932 … 5432 °F) / 1,45 – 1,75 μm / 100:1

¹⁾ ε = 1, response time 1 s
²⁾ with dynamic adaptation at low signal levels

Areas of application for the ratio pyrometer optris CTratio 2M

The special feature of the optris CTratio 2M allowing it to deliver reliable measuring data even through heavy soiling and acquiring data even with low visibility of the measuring objects – makes it an ideal device for temperature control of the hard-to-access processing of metals.

Infrared software CompactPlus Connect included

The temperature analysis software CompactPlus Connect has been specifically developed for the extensive documentation and analysis of temperature data of our stationary infrared thermometers. It is license-free, included in every Ratio pyrometer shipment and can be downloaded here.