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5
Technical Information
Troubleshooting
Troubleshooting
Here following some troubleshooting tables are reported. Refer to the
troubleshooting tables to locate and understand fails of your PHD-4.
Troubleshooting tables give you information about procedures
available to fix the fail occurred to PHD-4 and advices for a good use
of PHD-4 and a consequent long operative time without fails.
In coloumn “Trouble” are showed issues that could affect your
PHD-4. In coloumn “Answer” on right side possible reasons of fail
and solutions (if present) are listed.
Trouble
Sampling line fault
Sensitivity test fault
Sensor test fault
Unstable reading
Reading drift
Low sampled flow
Short operative range
Trouble
Sampling line fault
130/140
Answer
Answer
Due to clogging of line or fail of diaphragm pump.
Check probe line (pipe)
1.
Replace glass-wool filter
2.
Clean sintered filter
3.
Replace Sampling pump
4.
Start Sampled flow auto-adjust
PHD-4 Portable Helium Detector User Manual / 87-900-120-01 (F )
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