Metrohm 2.942.0500, Manual, Page: 58 / 63

6.1 Problems and their solutions
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942 Extension Module Vario SeS/PP (2.942.0500)
Problem Cause Remedy
Baseline increasing
strongly. Insufficient flow of regener-
ation solution or rinsing
solution. See problem "MSM – Insufficient flow of
regeneration solution or rinsing solution."
See problem "SPM – Insufficient flow of regen-
eration solution or rinsing solution."
MSM – Reduced capacity. Regenerate the MSM (see chapter 5.3.3.2,
page 40) .
SPM – Reduced capacity. Regenerate the SPM (see chapter 5.3.3.2,
page 40) .
Precision problems -
the measured values
are highly scattered. MCS – The vacuum is too
low.
￭
Check the connectors. If they are OK:
￭
Contact Metrohm Service.
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 (see "Setting
the contact pressure correctly", page 20) .
Peristaltic pump – Filter
blocked. Replace the filter (see chapter 5.2.2.2, page
37) .
SPM – Backpressure too
high. Clean the SPM (see chapter 5.3.3.4, page 43)
or replace parts (see chapter 5.3.3.5, page
45) .
Peristaltic pump – Pump
tubing defective. Replace the pump tubing.