Metrohm 919 IC Autosampler plus - Manual (Page 33)

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4 Operation and maintenance
919 IC Autosampler plus
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4 Operation and maintenance
4.1 General
Just like highly sensitive measuring instruments, Sample Processors require
proper care as well. Excess contamination of the instrument may result in
functional disruptions and a reduction in the lifetime of the otherwise
sturdy mechanics and electronics of the instrument.
Severe contamination can also have an influence on the measured results.
Regular cleaning of exposed parts can prevent this to a large extent.
Spilled chemicals and solvents must be removed immediately. In particular,
the connector strip (especially the power plug) should be protected from
contamination.
4.2 Filter
The 6.2821.130 filters (17-2) should be replaced every three months and
more frequently with higher backpressure.
1 2 3
Figure 17 Pump tubing connection – Replacing the filter
1 Tubing olive 2 Filter (6.2821.130)
Pack contains 10 pieces.
3 Filter screw
Replacing the filter
1 Unscrewing the filter screw
￭ Unscrew the filter screw from the tubing olive.
2 Inserting the filter
￭ Place the filter in the tubing olive and press it flat.
3 Installing the filter screw
￭ Screw the filter screw back into the tubing olive.