CTratio 1M/2M Two-Color Ratio Pyrometer. 250 °C to 3000 °C

The Optris CTratio (1M /2M) emerges as a rugged and reliable fiber-optical ratio thermometers, meticulously engineered for precise non-contact temperature measurement across a broad range of high temperatures, spanning from 450 °C to 3000 °C  (1M) and 250 °C to 3000 °C (2M). Leveraging the robust fiber-optical two-color technology, the CTratio (1M /2M )deliver s consistent and repeatable temperature measurement results, thanks to the pyrometers innovative ratio measurement principle.

Unlike conventional single-color pyrometers that rely solely on intensity measurements, the CTratio employs a dual-color approach, measuring infrared radiation at two closely spaced wavelengths. By evaluating the relationship between these two intensities, the CTratio ensures consistent and repeatable temperature measurements, even in challenging conditions where emissivity may be unknown or vary with temperature.

 Measuring Temperature range :

• CTratio 1ML :  1 color: 450…1400 °C /2 color: 525…1400 °C   (38:1 Optical Resolution)
• CTratio 1MH:  1 color: 650…2000 °C /2 color: 700…2000 °C   (100:1 Optical Resolution)
• CTratio 1MH1: 1 color: 900…3000 °C /2 color: 1000…3000 °C (100:1 Optical Resolution)
• CTratio 2ML :  1 color: 250…1000 °C /2 color: 275…1000 °C    (38:1 Optical Resolution)
• CTratio 2MH:  1 color: 375…1500 °C /2 color: 400…1500 °C    (100:1 Optical Resolution)
• CTratio 2MH1: 1 color: 500…3000 °C /2 color: 550…3000 °C  (100:1 Optical Resolution)

(Optional: Adaptable or Fixed Close Focus Lens available for precise measurement of small spot sizes)

• Ambient temperature sensing head + fiber cable electronics: –20 ... 200 °C (optional to 315 °C) 0 to 60°C(1M) 0 to 50 °C (2M)
• Spectral Range: 8 - 1.1 µm (1M),1.45 - 1.75 µm (2M)
• System accuracy: (Ambient 23 ± 5°C):  ±(0.5 % of reading +2 °C)
• Repeatability: (Ambient 23 ± 5°C): ±0.3 % of reading
• Response time (95%): 1 ms – 10 s
• Emissivity / Gain (Via programming keys or software): 050 – 1.000
• Signal processing: 1 color / 2 color mode; attenuation monitoring / alarms; peak hold, valley hold, average; extended hold function with threshold and hysteresis.(parameter adjustable via programming keys or software / App, respectively)
• Cable lengths: 3 m (standard), 8 m, 15 m
• Power supply: 8-36 V DC /  Current draw: max. 100 mA
• Outputs / analog: 2x 0/4-20 mA (12 bit) / optional: 2x 0/4-20 mA (16 bit) isolated
• Relay outputs (optional): 2 x 60 V DC/ 42 V ACeff; 0.4 A; optically isolated
• Digital Interface: USB (Micro-USB, USB-C and USB-A cable included)
• Digital Interfaces (optional): RS232, RS485, Ethernet, Modbus RTU
• I/O Pins: Three programmable in-/outputs; selectable as alarm output (open collector 24 V/1 A), input for triggered signal output and peak hold function or as analog input for external emissivity or slope adjustment
• Size: Sensing head: Ø12mm x 35 mm, M12x1 , Electronics: 122 mm x 70 mm x 27 mm

       Supplier link: 

https://optris.com/products/infrared-thermometers-pyrometers/ctratio-series/ctratio-1m/

 https://optris.com/products/infrared-thermometers-pyrometers/ctratio-series/ctratio-2m/