5 replacing the sensor – INFICON HPG400 ATM to High-Vacuum Gauge User Manual

Page 42

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tina31e1 (2004-05) HPG400 v1.om

Replacement is necessary, when
• the sensor is severely contaminated.
• the sensor is mechanically deformed.
• the sensor is faulty, e.g. filament of hot cathode broken (→ 40).
• the sensor is faulty, e.g. Pirani element broken (→ 40).

• Allen key, size 2.5 mm
• Spare sensor (→ 43)

Deinstall the gauge (

→ 36).

Deinstall the electronics unit from the faulty sensor and mount it to the new

sensor (

→ 15).

Adjust the calibration setting of the hot cathode (

→ 39).

Adjust the gauge (

→ 37).

The new sensor is now installed.

6.5 Replacing the Sensor

Required tools / material

Procedure

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