Thermo Scientific HESI-II Probe, User Manual

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3
Removing and Installing the HESI-II Probe
Installing the HESI-II Probe
Thermo Scientific HESI-II Probe User Guide 15
b. Pull the probe slightly upward until the guide pin is level with the slot on the left side
of the interlock block. Then turn the probe clockwise until the guide pin meets
resistance from the interlock block (see
Figure 15 ).
Figure 15. View of the guide pin inserted into the slot
c. Push the probe further downward into the port to the appropriate depth indicated by
the A, B, C, and D depth markers on the probe.
In the H-ESI mode, insert the probe to a depth of B, C, or D. For high solvent flow
rates, adjust the probe depth so that the nozzle is farther away from the ion interface
(depth C or D). Conversely, for low solvent flow rates, adjust the probe depth so that
the nozzle is closer to the ion interface (depth B or C).
4. Lock the probe in place by turning the probe locking knob (see Figure 13 on page 14 )
clockwise until you feel resistance.
5. Connect the nitrogen gas lines to the HESI-II probe as follows (see Figure 10 on
page 11 ):
a. Connect the sheath gas fitting (blue) to the sheath gas inlet (S).
b. Connect the auxiliary gas fitting (green) to the auxiliary gas inlet (A).
6. Unplug the vaporizer cable connector from the interlock socket and connect it to the
vaporizer cable connector socket on the HESI-II probe. To align the connector pins with
the socket, align the red dot on the connector with the red dot on the socket.
Figure 11
on page 12 shows the red alignment dots on the connector and the socket.
7. Connect the 8 kV cable connector to the 8 kV cable connector socket on the HESI-II
probe. Tighten the locking ring (see Figure 8 on page 10 ) on the 8 kV cable connector.
A
B
C
D
Guide pin inserted into the
slot in the left side of the
interlock block
A, B, C, and D depth
markers