Thermo Scientific ISQ EC, Operating Manual

Page: 178 / 232

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Maintenance and Service
Page 178 ISQ EC and ISQ EM Mass Spectrometer Operating Manual
3) Turn gas flows down to standby state prior to cooling probe.
4) Turn-off probe temperature and allow a minimum of 5 minutes to
cool down the probe.
5) Verify probe temperature on Chromeleon ePanel.
6) Stop liquid flow of the front-end chromatograph.
7) Open the front door and top-hatch of the MS instrument.
8) Disconnect the PEEK capillary going from the probe to the grounding
union as shown in Figure 100.
9) Locate the black plastic knob of the ESI probe assembly and slowly
turn counter-clockwise to remove from the source spray chamber
housing as shown in Figure 100.
Figure 92: Removal of ESI probe assembly