The Optris CTratio 2M emerges as a rugged and reliable fiber-optical ratio thermometer, meticulously engineered for precise non-contact temperature measurement across a broad range of high temperatures, spanning from 250 °C to 3000 °C. This advanced instrument offers versatility and accuracy, catering to various measurement requirements through its three distinct models: 2ML, 2MH, and 2MH1. Leveraging the robust fiber-optical two-color technology, the CTratio 2M delivers 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 harnesses the power of dual-color or two-color pyrometry. By measuring infrared radiation at two closely spaced wavelengths and evaluating the relationship between these intensities, the CTratio ensures accurate and reliable measurements even in adverse conditions. This approach proves invaluable in scenarios where emissivity is unknown or changes with temperature, as the infrared sensor accounts for variations in emissivity or process conditions proportionally across both wavelength signals.
Moreover, the CTratio’s resilience extends to challenging environments where obstacles like dust, smoke, or steam may be present in the optical path. With the ability to maintain reliability even with up to 90 percent attenuation caused by changing transmissions, this pyrometer remains a dependable tool in industrial settings. The infrared thermometers resistance to adverse conditions, coupled with precise temperature measurements, makes this infrared sensor indispensable across a wide range of applications.
Aligning the sensor for optimal performance is effortless with the CTratio 2M, thanks to its integrated green laser, providing real-time spot size indication at any distance. This feature simplifies sensor alignment, even on surfaces emitting intense red glow. Additionally, the motorized focus capability allows for adjustable focusing from 150 mm to infinity, ensuring versatility in targeting objects at various distances.
The temperature measurement ranges offered by the CTratio 2M cater to diverse industrial needs, with each model tailored to specific temperature ranges for both single-channel and dual-channel operation. This flexibility, combined with the pyrometers high system accuracy and repeatability, ensures consistent and reliable performance in demanding industrial environments.
Safety and durability are paramount considerations in industrial settings, and the CTratio 2M addresses these concerns admirably. Featuring an electrically isolated sensing head and a rugged stainless steel housing, this pyrometer prioritizes safety and reliability, making it suitable for the most challenging applications.
Manufactured in Germany, the CTratio 2M exemplifies precision engineering and uncompromising quality. The infrared thermometers adaptability, durability, and accuracy position it as the preferred choice for critical temperature control in industries such as metal and semiconductor manufacturing. With comprehensive support for various analog and digital outputs, seamless integration into industrial processes is assured.
In conclusion, the Optris CTratio 2M sets the standard for non-contact temperature sensing technology, offering unmatched accuracy, reliability, and versatility. Designed to excel in demanding industrial environments, this infrared pyrometer is the go-to solution for precise thermal monitoring across a wide range of applications.
| MODEL |
CTratio 2ML |
CTratio 2MH |
CTratio 2MH1 |
| DETECTOR |
|
|
|
| Detector |
|
Sandwich Detector |
|
| Measurement Principle |
|
Two Color |
|
| Spectral Range |
|
1,45 – 1,75 µm |
|
| Response Time |
|
1 ms |
|
| Exposure Time |
|
1 ms |
|
| Sampling Frequency |
|
1000Hz |
|
| Exchangable Sensing Head |
|
Yes |
|
| OPTICAL |
|
|
| Distance to Spot ratio (D:S) |
38:1 |
100:1 |
| Spot size (SF optics) |
26.3 mm at 1000 mm |
10 mm at 1000 mm |
| Other optics (FF/CF optics / add. CF lens) |
|
1.5 mm at 150 mm |
| Focus |
|
Manual focus, 150 mm to infinity. infinitely adjustable |
| SIGHTING |
|
| Laser Sighting |
Laser with 520 nm at max 1 mW |
| Video Sighting |
none |
| MEASUREMENT |
|
|
|
| Object Measurement Range |
1 color: 250…1000 °C
2 color: 275…1000 °C |
1 color: 375…1500 °C
2 color: 400…1500 °C |
1 color: 500…3000 °C
2 color: 550…3000 °C |
| Accuracy |
|
±0.5 % of reading +2 °C **2) |
|
| Repeatability |
|
±0.3 % of reading **2) |
|
| Temperature Coefficient |
|
± 0.05 K/K or ± 0.05 % / K **3) |
|
| Thermal Sensitivity (NETD) |
|
100 mK |
|
| Warm-up time |
|
10 min |
|
| Emissivity /Transmissivity/ Reflectivity |
|
0.050 – 1.100 |
|
| Slope |
|
0.800 – 1.300 |
|
| INTERFACES |
|
| Interface |
USB
Serial Communication, Ethernet (optional) |
| Supported Protocols |
USB 2.0,
Relay Output / RS232 / RS485 / EtherNet/IP / Ethernet TCP / Modbus TCP / Modbus RTU / Profinet / Profibus (optional) |
| Compatible Software |
CompactPlusConnect, IRmobile |
| ANALOG INPUT/OUTPUT |
|
| Direct output/input |
Out: 2x 0/4 – 20 mA, Programmable open collector output
[24 V / 1 A] In: 1x 0-10V |
| Output impedances |
max. 500 Ω (with 8-36 V DC) for mA output |
| Cable length |
3 m (standard), 8 m, 15 m |
| SIGNAL PROCESSING |
|
| Configuration |
CompactPlusConnect or Irmobile |
| Operation |
Autonomous Standalone and/or Computer-enabled |
| Capabilities |
1 color/ 2 color mode/ attenuation monitoring,
alarms, peak hold, valley hold, average/
extended hold function with threshold and
hysteresis, Smart Ratio Mode (SRM) |
| GENERAL |
|
| Size |
Sensing head: Ø19 x 76 mm, M18x1
Electronics: 122 mm x 70 mm x 27 mm |
| Housing Material |
Stainless Steel |
| Weight |
Sensing head: 210 g (including 3 m fiber cable )
Electronics: 420 g |
| Country of Origin |
Germany |
| ENVIRONMENTAL & CERTIFICATIONS |
|
| Operating Temperature Range |
Sensing head: –20 … 200 °C (optional to 315 °C)
Electronics: 0 … 60 °C |
| Storage Temperature Range |
–40 … 85 °C |
| Relative humidity |
10 – 95 %, non condensing |
| Protection Class |
IP 65, NEMA 4 |
| EMC |
2014/30/EU |
| Shock |
IEC 60068-2-27 (25 G and 50 G) |
| Vibration |
IEC 60068-2-6 (sinus shaped)
IEC 60068-2-64 (broadband noise) |
| Standards |
CE, Rohs |
| POWER |
|
| Power Supply |
8 – 30 V DC / 5 V USB |
| Power Consumption |
max. 5 W |
| Current Draw |
N/A |
| Part number |
OPTCTRF2ML |
OPTCTRF2MH |
OPTCTRF2H1 |
| Additional Remarks |
1) 90% energy
2) at ambient temperature 23 ± 5°C, object temperature > 0°C ;
3) for ambient temperatures <18°C and >28°C; whichever is greater |