02/03/2008 • IT and automation • Process automation / MSR technology • Sensor Technology

The new Infrared Thermometer optris CThot

The optris CThot allows temperature measurements and the use of the IR sensor head under environmental temperatures up to 250°C without any need of cooling. New detector materials, a new mechanical design and high temperature cables allow the optris CThot to withstand harsh environmental conditions. A robust and massive but yet compact housing is adaptable to common industrial mountings, brackets and flanges.

More and more modern heat treatment lines are constructed inside the machine in a very compact design for high process efficiency, there is no way to place sighting tubes etc. for measuring from outside the process chamber. Compact (IR) sensors withstanding the heat inside the process chamber/oven are the deal.

Main application field of such type of sensors is the control of drying and finishing processes of textile fabric, carpet, paper, cardboard, corrugated paper, plasterboard sheets, timber and plastic compounds. optris CThot sensors inside heat treatment lines with several process chambers measure temperatures of the web/fabric at different points over the length and the width. The customer gets information about the drying curve, moisture content, non uniform application of coatings and fixing. The process engineer can optimize the energy flow and energy consumption, the speed and the product quality.

The narrow beam optics of these sensors with a high optical resolution of 10:1 allows oblique aiming to avoid material dependent temperature readings. Under these oblique viewing angels the effective emissivity of textiles is independent of its thickness and type of fabric. So the customer can measure thick textile fabric or light fabric like curtain material in the same way.

A response time of 30ms is a big benefit and is setting a benchmark in these sensor families. Most of the rival products are much slower (in the range of seconds) , and they have a more worse optical resolution (1:3 or less) , making material independent measurements more difficult.

The optris CThot is usable in a varity of applications in dryers, ovens, heat treatment lines in the metal and glass industry, paper, plastic and textile manufacturing and semiconductor processing in the temperature range of -40 to 975°C.

The monitor box for programming and temperature display allows the easy wiring of the standard analog outputs 0/4-20mA, 0-5/10V, thermocouple type K or J.

Optris offers for all CT series infrared thermometers an integrated Profibus DP interface (optional) or other plug in digital interfaces (optional) like USB, RS232, RS485 or CAN.
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Optris GmbH

Ferdinand-Buisson-Str. 14
13127 Berlin

Phone: +49 (0)30/ 500197- 0
Fax: +49 (0) 30/ 500197- 10