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CombiFlash® Rf
User Manual
1. Complete the appropriate procedure to remove the probe
from your system.
2. Using a 1 ml syringe, with Luer-Loc and adaptors,
connected to ESI or APCI capillary and push fluid through
to remove plug. If this procedure does not resolve the issue,
an HPLC pump can be connected to the inlet fitting.
Figure 8-10 ESI probe with syringe
3. If this procedure fails to unplug the capillary, refer the
instructions for the rebuild kit provided with your PurIon
system.
4. Reinstall the probe following the appropriate procedures
for your system.
8.6.9 Replacement of Ion Source Housing
1. Place the ion source housing on top of the base plate and
line up with the rear electrical connection. Push down until
source chamber is seated evenly across the base plate.
2. Finger tighten the two thumb screws and finger- tighten
the ¼-28 PTFE tube fitting labeled as 'heated desolvation'
on the side of the housing.
3. Follow the steps in "Replacing the ESI Probe" or "Replacing
the APCI Probe" as appropriate to reconnect the lines.
8.6.10 Overpressure Error
The fluid interface has a pressure transducer to monitor
pressure of the carrier fluid. Since the sample is introduced at
the splitter valve, plugs usually occur between the valve and
the PurIon source sprayer. The most common location for a
8-16
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