High performance infrared sensors enable the latest pyrometer from Micro-Epsilon to measure temperatures from 250°C to 3,000°C
Micro-Epsilon has extended its range of high performance, non-contact temperature sensors to include a new compact infrared ratio temperature sensor (two-colour ratio pyrometer) that is ideal for use in high temperature, high speed metal processing environments, including casting, forging and secondary metal processing applications such as induction heating.
The thermoMETER CTRatio series has been extended to include two new updated versions, the CTRatioM1 and CTRatioM2. These two-colour ratio infrared temperature sensors offer users a much wider temperature measuring range, starting at 250°C up to 3,000°C. Response times have also been improved, from 5ms down to 1ms. Fast signal processing means the sensors are suitable for use in high speed processes. Due to their rugged sensor heads, the thermometers can operate in ambient temperatures up to 200°C without requiring any additional cooling.
The compact sensor head of the ratio pyrometer enables it to be mounted into tight, restricted spaces in production lines and machines. In addition, the sensor is equipped with a green laser for sighting purposes, ideal for seeing where the sensor is looking, especially on red glowing surfaces. A fibre optic cable connects the optical sensor head to the electronics. By using a fibre optic cable, the device is insensitive to electromagnetic interference (EMI) normally found in induction-based heat treatment processes.
The sensor is also insensitive to dust, dirt, smoke fumes and steam. Using the ratiometric measuring principle, the sensor minimises measurement errors caused by unknown emissivity values and partial spot size coverage. Even in cases where the infrared radiation from the target surface is weakened to 95% of its original intensity due to smoke, steam or a dirty viewing window, the ratio pyrometer still provides reliable measurements.
With optical resolutions of 38:1, 50:1 and 100:1 and an adjustable focus from 300mm to infinity, thermoMETER CTRatio uses a short wavelength range of 0.8 to 1.75µm and is ideal for measuring high temperatures on metals and for monitoring fast-moving, high-speed production processes.