Metrohm 814 USB Sample Processor - Manual (Page 43)

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5 Troubleshooting
5.1 Sample Processor
Problem Cause Remedy
The instrument is
not recognized by
the control soft-
ware. Sample Processor – No USB
connection available. 1. Correctly plug in the USB connection cable
on both ends.
2. Restart the control software or switch the
Touch Control off and on again.
Sample Processor – Power
supply of the instrument is
missing. 1. Plug in the mains cable on the instrument.
2. Restart the control software or switch the
Touch Control off and on again.
5.2 Pump
Problem Cause Remedy
The pump is leaking. Sample Processor – A tub-
ing connection is leaking. Check the tubing connections especially
between the distributor an the pump and seal
tightly.
Canister – There is too
much pressure on the
pump valve. ￭ Ensure that the canisters are not placed on
a higher level than the pump.
￭ Check the fill level of the canisters.