3 of 10
Jun 2001
Valves
Agilent 6890 Gas Chromatograph Service Manual
Valve Box 1120
Installing the valve box
4. There are six holes in the plate for up to four valves. The outside holes
on each side of the plate are for valves and the inside holes are for
plumbing into the GC. Punch out the pre-perforated insulation from the
holes you plan to use.
5. Use two Torx T-20 screws to mount the heater block(s) on the valve box
bottom plate.
6. Install the heater/sensor into the heater block(s) and secure the leads to
the valve box bottom plate with the U-clamp and two Torx T-10 screws.
Note Make sure that the sensor is seated all the way in the heater block.
Figure 1120-4 Attaching heater block to the bottom plate
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