Agilent Technologies 19239A, Руководство по установке

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Installing Cryogenic Oven Cooling Accessory 19239A/B
Install the Cryogenic Valve
5
Install the Cryogenic Valve
Caution
The insulation on the GC is made of refractory ceramic fibers (RCF).
Ventilate your work area. Wear long sleeves, gloves, safety glasses, and a
disposable dust/mist respirator. Dispose of insulation in a sealed plastic
bag.
1. Using a screwdriver, pierce the oven insulation covering the cutout for
the cryo nozzle.
2. Cover the open end of the cryo nozzle tubing, then carefully insert the
cryo valve assembly so that the nozzle slides into the oven. Secure the
valve assembly onto the three mounting studs using a flat washer and
an M4 nut on each.
3. Route the two valve leads through the space between the oven and the
mainframe, across the rear of the instrument, to the main circuit board.
CO
2
nozzle
CO
2
fitting
N
2
nozzle
N
2
tube fitting Cryogenic valve