PerkinElmer clarus 500 gc, Installation Manual

Page: 81 / 112

Clarus 500 GC Installation Guide
81
1. Locate a size 1A CO
2
cylinder equipped with a fitting containing a full-length dip
(eductor) tube and approximately 27.3 kg (60 lb) of carbon dioxide.
2. Connected to the CO
2
supply tubing (P/N N600-0404) is an envelope containing a
Teflon gasket. This goes inside the nut on the tubing before attaching it to the tank.
Connect the large nut on one end of the CO
2
supply tubing to the CO
2
tank fitting by
turning the nut clockwise until it is finger-tight. To provide a leak-free connection,
tighten the nut an additional half-turn with a large adjustable wrench.
3. Connect the 1/4-in. nut on the other end of the tubing to the 1/4-in. union on the rear
of the Clarus 500 GC by turning the nut clockwise until it is finger-tight. To provide a
leak-free connection, place a 9/16-in. wrench on the nut and a 1/2-in. wrench on the
bulkhead fitting, then tighten the nut an addition half-turn.
WARNING
The CO
2
supply system contains liquid CO
2
pressurized at 6000 kPa (870 psig)
at 20°C (68°F). Before breaking connections to change cylinders, shut off the
liquid CO
2
cylinder valve, then bleed the supply tubing by closing the oven door
and adjusting the oven temperature below 60°C (140°F). This opens the coolant
solenoid valve and allows the CO
2
supply tubing to bleed.
4. Turn on the valve and check for leaks.