Troubleshooting - VITLAB continuous E Mode D'emploi

14. Troubleshooting

Error
Air is aspirated or air
bubbles are present in the
discharge tube.
No liquid is aspirated.
Dispensed volume is too
low.
Cause
– Instrument has not been primed
correctly.
– Intake tube is not properly
mounted or is damaged.
– End of intake tube is above the
surface of the liquid.
– Intake valve is sticking or clogged.
– Intake valve is soiled or damaged.
– Intake tube is not properly mounted
or is damaged.
– Instrument is in "C" mode.
Solution
– Follow "Priming" procedure
(Chapter 8.2).
– Follow the cleaning procedure
(Chapter 9). Push the intake tube
into the intake valve as far as it will
go. Shorten the intake tube, cut it
off at an angle, or replace if needed.
– Extend the intake tube until it is
immersed in the liquid.
– Follow "Intensive Cleaning"
procedure (Chapter 9). If this does
not solve problem follow „Repair
Service" (see chapter 16.1).
– Follow "Intensive Cleaning"
procedure (Chapter 9.3). Remove
the intake tube. If this does not solve
problem follow „Repair Service" (see
chapter 16.1).
– Push the aspirating tube onto
the filling valve as far as possible.
Shorten the aspirating tube or
replace if necessary.
– Reset the instrument
(Chapter 13.2) to restore
factory calibration.
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