The Optris CThot LT pyrometer shines in very high-temperature environments, offering exceptional temperature resistance of the sensing head, allowing operation in ambient temperatures of up to 250 °C without additional cooling. This elevated temperature rating makes it suitable for various applications, including dryers, furnaces, heat-treating processes of plastics and textiles processing, and semiconductor production. The IR thermometer with temperature measurement capabilities ranging from –40 °C to 975 °C and selectable optical has robust and durability due to its compact stainless steel housing.
The series sets an industrial standard for non-contact temperature measurement, emphasizing precision and speed, with optional accessories enhancing functionality for harsh environment industrial scenarios.
The Optris CThot LT pyrometer is engineered to thrive in extreme conditions within high-temperature environments, boasting exceptional temperature resistance of the sensing head. Operating in ambient temperatures of up to 250 °C without additional cooling presents no challenges for this infrared thermometer, making the pyrometer particularly suitable for integration into machines across various applications, including dryers, furnaces, heat-treating processes, plastics and textiles processing, and semiconductor production.
The Optris CThot LT series offers temperature measurement capabilities ranging from –40 °C to 975 °C with a response time starting from 100 ms. Selectable 10:1 or 2:1 optics and a compact sensor head size further enhance its versatility.
The separate control box of the CThot LT provides high variability with selectable analog outputs and several digital interfaces. Its unique advantages for installation in applications with high surrounding temperatures stem from a robust and ambitious design, allowing operation of the sensing heads for temperatures up to 250 °C without additional cooling. The compact stainless steel housing, measuring 29 mm in diameter and 55 mm in length, ensures durability in harsh conditions. The infrared pyrometer minimizes thermal gradients along the sensor head, optimizing thermal shock resistance for accuracy and repeatability in rapidly changing ambient temperatures.
Manufactured in Germany to meet stringent quality requirements, these pyrometers undergo meticulous calibration to government standards such as PTB or NIST. Customization options, including different cable sizes, are available for large-quantity OEM customers. Optris offers comprehensive support, including consultation on industrial applications and after-sales assistance. Additionally, upon request, the IR thermometers can be provided in an explosion-safe design with an ATEX certificate.
The Optris CThot LT series sets an industrial standard for non-contact temperature measurement, emphasizing precision and speed. Featuring a two-piece design, an optical resolution of up to 10:1, and a rapid exposure time of down to 100 ms, this infrared thermometer is optimized for efficient monitoring across diverse industrial applications. Its exceptional temperature resistance, precise non-contact temperature measurement, and adaptability underscore its utility and reliability in critical industrial processes. Optional accessories, such as mounting forks, sighting tubes, close-focus lenses, air purge accessories, and cooling jackets, further enhance its functionality, offering tailored solutions for varied industrial scenarios. In summary, the Optris CThot LT series pyrometer combines precision, adaptability, and durability to facilitate non-contact temperature measurements in diverse industrial applications.
| MODEL | CThot LT02 | CThot LT10 |
| DETECTOR | ||
| Detector | Thermopile | |
| Measurement Principle | Single Color | |
| Spectral Range | 8 – 14 µm | |
| Response Time (90% energy) | 9 ms | 6 ms |
| Exposure Time | 9 ms | 6 ms |
| Sampling Frequency | 110 Hz | 160 Hz |
| Exchangable Sensing head | No | |
| OPTICAL | ||
| Distance to Spot ratio (D:S) | 2:1 | 10:1 |
| Spot size (SF optics) | 200 mm at 400 mm | 40 mm at 400 mm |
| Other optics (FF/CF optics / add. CF lens) | SF + CF: 2.5 mm at 23 mm | CF1: 3 mm at 30 mm |
| Focus | fixed | |
| SIGHTING | ||
| Laser Sighting / Video Sighting | none | |
| MEASUREMENT | ||
| Object Measurement Range | -40°C ... 975°C | |
| Accuracy | ± 1% or ± 2°C | |
| Repeatability | ± 0.75 % or ± 0.75 °C | |
| Temperature Coefficient | ± 0.05 K/K oder ± 0.05 % / K | |
| Thermal Sensitivity (NETD) | 200 mK | 400 mK |
| Warm-up time | 10 min | |
| Emissivity /Transmissivity/ Reflectivity | 0.100 – 1.100 | |
| INTERFACES & SIGNAL PROCESSING | ||
| Interface | USB / RS232 / RS485 / Profibus DP / Ethernet / Relay | |
| Supported Protocols | USB 2.0, Optional: EtherNet/IP / Ethernet TCP / Modbus TCP / Modbus RTU / Profinet / Profibus | |
| Direct output/input | 0-20 mA / 4-20 mA / 0-5 V / 0-10 V / t/c (K/J) | |
| Capabilities | Average, Peak hold, Valley hold, Advanced peak hold with threshold and hysteresis, Triggered signal output, Triggered peak hold function | |
| GENERAL | ||
| Size (Sensing head) | Ø29.5mm x 35 mm, M18x1 | |
| Size (Electronics) | 122 mm x 70 mm x 27 mm | |
| Housing Material | Stainless Steel | |
| Weight | Sensing head: 40 g / Electronics: 420 g | |
| ENVIRONMENTAL & POWER | ||
| Operating Temp. (Sensing head) | -20 °C ... 250 °C | |
| Operating Temp. (Electronics) | 0 °C ... 85 °C | |
| Storage Temp. (Sensing head) | -40 °C ... 250 °C | |
| Protection Class | IP 65, NEMA 4 (except terminal connector) | |
| Power Supply | 8-36 V DC | |
Thermography software optris PIX Connect is included and license-free.All infrared cameras are delivered with the thermography software optris PIX Connect, developed specifically for the extensive documentation and analysis of thermal images. The Windows-based PIX Connect software enables users to tailor the infrared cameras to meet specific requirements. It analyses live and recorded temperature data and triggers alarm signals for process integration. The key to leveraging the Optris infrared camera is a correct configuration. This includes detailed device-specific configurations such as frame rate, measurement range adjustments, external communication settings, and USB/Ethernet configurations. Moreover, PIX Connect facilitates firmware updates and the download of configuration files over the Internet.
Optris offers several different SDKs for our Xi and PI thermal imaging cameras. Depending on the operating platform, the infrared camera, the coding language, and the hardware platform, different software interfaces can be utilized:
The Optris IRmobile allows users to set up and commission an Optris infrared pyrometer or infrared camera with an Android smartphone or tablet. This tool becomes handy for commissioning and aligning the infrared camera’s field of view or adjusting the configuration. The app analyzes the connected infrared camera‘s live infrared image stream with auto hot and cold spot detection. For pyrometers, a temperature-time diagram or the video signal is displayed. This app works on most Android devices running 5.0+ with a USB port supporting USB-OTG (On The Go).
