Analytik Jena PlasmaQuant PQ 9000, Operating Manual

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Maintenance and care
PlasmaQuant PQ 9000 Edition 05/2014 59
8.3 Maintenance of the automatic sampler
Contamination on the sample tray and the housing can be removed with a dry cloth on a daily
basis as required. In addition, if required:

Replace the pump hose

Replace the cannula and the suction hose

Clean the wash cup after overflow
8.3.1 Replacing the cannula and the sample hose
The cannula and sample hose can be ordered ready for use. However, it is also possible to
replace both separately.
1. Switch off the automatic sampler at the power switch.
2. Disconnect the connection between the sample hoses of the automatic sampler and the
PlasmaQuant PQ 9000.
3. Carefully pull the sample hose from the hose guides on the automatic sampler.
4. Unscrew the cannula from the holder on the automatic sampler.
5. Unscrew the banjo bolt at the cannula and the sample hose from the connecting piece.
6. Only use a straight-cut, round and unpinched hose end for the connection when replacing
the sample hose. First push the banjo bolts and then one sealing cone with the conical side
onto the hose and the cannula. The sealing cone and the hose or cannula end must be
flush (see the figure below) .
7. Screw the banjo bolts into the connecting piece hand-tight.
8. Install the cannula in the automatic sampler holder and thread the sample hose through the
hose guides at the automatic sampler (also see the section "Installing the automatic
sampler" p. 37).
1 Cannula
2, 6 Banjo bolt
3, 5 Sealing cone
4
Connecting piece
7 Sample hose
Figure 23 Automatic sampler cannula and sample hose dismantled
8.3.2 Replacing the pump hose
1. Switch off the automatic sampler at the power switch.
2. Release the clamping arm at the pump and fold the hose guide down.
3. Remove the pump hose from the pump.
4. Pull the pump hose from the connection on the wash cup and from the connection to the
suction hose for the wash solution.
5. Attach the new pump hose at the lower connection on the wash cup and connect it to the
suction hose for the wash solution.
6. Clamp the pump hose between two stoppers into the pump.