Carbon dioxide (CO2) probe
760 - 1100 °C | AP1X
Invensys Operation Management
The AP Probe is suitable for high temperature carburizing heat treating, carbonitriding and endothermic gas generators. The AP Probe is NOT suitable for nitriding applications.
This AP Probe consists of % oxygen sensor, thermocouple sensor, their protection tube and the cold end termination head.
Zirconia is a solid state electrolyte which conducts oxygen ions at temperatures above 1400°F. The ion conduction results in a voltage between the two electrodes. The magnitude of the voltage is dependent on the temperature of the Zirconia and on the ratio of the oxygen partial pressure on the reference side of the electrolyte to the oxygen partial pressure on the process side of the electrolyte.
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