optris CTi LThot — Infrared Temperature Sensor for Hot Environments

The Optris CTi LThot 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 infrared pyrometer CTi LThot with temperature measurement capabilities ranging from –50 °C to 1050 °C and selectable optical options is robust and durable due to its compact stainless steel housing. The infrared thermometer series sets an industrial standard for non-contact temperature measurement, emphasizing precision and speed, with optional accessories enhancing functionality for harsh environment industrial scenarios.
Temperature range: -50 °C to 1050 °C
Spectral range: 8 to 14 µm
Response time: down to 40 ms
High operating temperature rating up to 250 °C

The Optris CTi LThot 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 CTi LThot series offers temperature measurement capabilities ranging from –50 °C to 1050 °C with a response time down to 40 ms. Selectable 10:1 or 2:1 optics and a compact sensor head size further enhance its versatility.

The separate control box of the CTi LThot 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 adaptability of the Optris CTi LThot series is further emphasized by the range of analog and digital outputs provided by the electronics box, including 0/4 – 20 mA, 0 – 5 V, 0 – 10 V, thermocouple (type K), USB, RS485, RS232 interfaces, relay outputs (2 x optically isolated), ProfiNet, Modbus TCP, Modbus RTU Ethernet TCP and EtherNet/IP. This adaptability facilitates seamless integration into machinery, enhancing utility across various applications.

The Optris CTi LThot 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, 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 CTi LThot series pyrometer combines precision, adaptability, and durability to facilitate non-contact temperature measurements in diverse industrial applications.