Metrohm 940 Professional IC Vario ONE/SeS/PP/Prep 3 User Manual
Page 119
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6 Troubleshooting
940 Professional IC Vario ONE/SeS/PP/Prep 3 (2.940.1530)
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109
Problem
Cause
Remedy
Vacuum is not being
built
Eluent degasser – Vacuum
connection on the rear of
the instrument is not
(tightly) sealed.
SPM – Insufficient
amount of regenera-
tion solution or rins-
ing solution is being
pumped.
There is a leak in the sys-
tem.
Check all connections.
Peristaltic pump – Contact
pressure too weak.
Correctly set the contact pressure .
Peristaltic pump – Filter
blocked.
Replace the filter .
SPM – Backpressure too
high.
Clean the SPM or replace parts .
Peristaltic pump – Pump
tubing defective.
Replace the pump tubing .
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