INFICON HPG400 ATM to High-Vacuum Gauge - Manual (Page 40)

40
tina31e1 (2004-05) HPG400 v1.om
In the event of a fault or a complete failure of the output signal, the gauge can eas-
ily be checked.
• Voltmeter / ohmmeter
• Allen key, size 2.5 mm
• Spare sensor (if the sensor is faulty)
The output signal is available at the sensor cable connector (Pin 2 and Pin 12).
In case of an error, it may be helpful to just turn off the supply voltage
and turn it on again after 5 seconds.
Problem Possible cause Correction
Output signal
permanently
≈0V
Sensor cable defective or
not correctly connected Check the sensor cable
No supply voltage Turn on the power supply
Gauge in an undefined
status Turn the gauge off and on
again (reset)
Output signal
≈0.3 V
(Display: error = 8)
Hot cathode error
(sensor faulty) Replace the sensor
(
→ 42)
Output signal
≈0.5 V
(Display: error = 9)
Pirani error
(sensor defective) Replace the sensor
(
→ 42)
Electronics unit not
mounted correctly on
sensor Check the connection
Display: Internal data connection
not working
Turn the gauge off and on
again after 5 s
Replace the electronics
unit
6.4 What to Do in Case of
Problems
Required tools / material
Troubleshooting