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In many applications, heating elements are employed to heat a product in an oven, furnace, or with jets of hot air. Conventional control devices using contact thermocouples measure and control the oven air temperature, IR heating element temperature, or air jet temperature in an effort to maintain product temperature and therefore, quality; often with less than satisfactory results.

Replacing the contact thermocouple (for example, measuring oven temperature) with a non-contact IRt/c measuring product temperature directly will insure that product temperature is maintained.

Some readjustment of the controller parameters is required because of differences in sensor response times (an IRt/c is much faster) and time required to heat the product compared to the original sensor (slower). After installing the IRt/c and calibrating the controller reading using a Microscanner D-Series, initiate the self-tuning cycle of the controller and check to see that the control is stable and accurate. If it will not self-tune properly, manually adjust the control coefficients to achieve stable control. Because the product temperature is likely to change temperature more slowly than the original sensor, start with slowly increasing the “D” of the PID coefficients.

For more information please contact Temperature Controls on +27 11 791 6000 or

Contactless Infrared Forehead Thermometer

Based on the principle of infrared radiation, the non-contact design is relatively safe, accurate and thus suitable for the elderly, children, hospital and family.

Infrared thermometer is a thermometer based on the principle of radiation to measure human body temperature. The infrared sensor used only absorbs the infrared radiation radiated from the human body without emitting any rays to the outside world and senses the human body temperature via the contactless method.

Based on the working principle that the human body's infrared thermal radiation is focused on the detector, which converts the radiated power into an electrical signal. This signal can be displayed in units of temperature after being compensated by the ambient temperature. 

For more information, please contact Temperature Controls on 011 791 6000 or