The probe mounting flange is used to seal the cable pass-through in the chamber wall. The flange can also be used to hold the probe itself, in case the probe cannot be mounted on the chamber wall otherwise. This mounting is not ideal since leaving the probe cable completely outside the measurement environment may cause heat conduction that affects the measurement. Therefore, installation using mounting flange is recommended for the 400-mm-long probe option only, as the risk of heat conduction to the sensor is smaller than with the shorter, standard-length probe.
