K7TM Heater Condition Monitor

Heater resistance value trends can’t be determined using the basic voltage/current calculation because the temperature controller and heater characteristics influence this calculation. The K7TM accurately measures resistance values by filtering these influences out of this calculation.

The K7TM can also monitor the deterioration trends in heater resistance by comparison with historical resistance values when used in the same environment. Depending on heater type, the resistance value may vary greatly depending on temperature. The K7TM constantly monitors the heater resistance value at the same timing as heater temperature to accurately reflect heater deterioration trends.