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2
Operation
Troubleshooting
Problems that occur on E5084 and E5083 units
Problem
Disconnected helium
cable
Open or disconnected
gas pipe
Blocked gas pipe
18
This section contains descriptions of some common problems
to help the Installation Engineer to find the source of the
problem and ensure the proper operation of the unit.
As detected by E5084/3
Helium hardware error
Pressure same or close
to atmospheric
Falling helium level
Pressure may be affected
Measured helium
pressure does not rise
Alarm result
Comments
Helium hardware
Detected one second after a
failure is detected
helium read is attempted
Low pressure alarm
Within three seconds
very likely
Helium low alarm,
later
Likely that a
pressure error is
triggered
E5080 Series Cryogen Monitor User Guide
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