Agilent Technologies Helium G8610 Series Field Installation Instructions page 12

Vacuum Products Division
1. Turn off the power switch located on the back of the unit and unplug.
2. Wait 30 seconds for the high voltage to dissipate
3. Using a slotted screw driver, unfasten the captive screws holding each of the four covers.
If the unit is equipped with a handle, remove the handle.
4. Detach all four covers and rotate the top lid about the display, as to give access to the
spectrometer.
5. To remove the spectrometer top cover, it may be necessary to first pull straight out the
thermocouple gauge (shown in Figure 2-2 with the red arrow. It is shown without the
outside black plastic cover). Leave the thermocouple gauge connected to its wiring. Use an
M3 Phillips head screw driver to remove the four screws securing it. The screw shown in
the top right of Figure 2-2 will be securing a grounding strap. Leave the ground strap
hanging from the leak detector frame. Disconnect the two electrical cables plugged into
the spectrometer board, the pre-amp RJ45 style connector on the turbo side of the
spectrometer, and the ion source multi-pin connector (Cables not shown for clarity: refer to
Figure 2-3). Remove the top cover, set aside with the screws.
CAUTION
Manual 699910005, Hot Ion Source Replacement
Thermocouple
Gauge
Figure 2-2. Spectrometer access
Static sensitive device, ensure that personnel are properly grounded
before proceeding.
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