Agilent Technologies 7820A Manual page 109

WA RN IN G
WA RN IN G
Maintaining Your GC
Be careful! The oven, inlet, and/or detector may be hot enough to
cause burns. If the oven, inlet, or detector is hot, wear
heat-resistant gloves to protect your hands.
10 If required, install the detector adapter. (See
Packed Column Adapter on a Detector Fitting"
Attach the column to the detector or detector adapter.
11
Finger-tighten the nut.
12 Tighten the nut an additional 1/4 turn with a wrench (for a
1/8-inch column) or an additional 3/4 turn (for a 1/4-inch
column).
Establish a flow of carrier gas and purge as recommended by
13
the packing manufacturer. Generally:
• 20 to 30 mL/min for 2-mm id glass or 1/8-inch od metal
columns
• 50 to 60 mL/min for 4-mm id glass or 1/4-inch od metal
columns
14 Restore the analytical method.
15 After the GC becomes ready, wait 10 minutes then ignite the
detector flame.
Be careful! The oven, inlet, and/or detector may be hot enough to
cause burns. If the oven, inlet, or detector is hot, wear
heat-resistant gloves to protect your hands.
16 Allow the oven, inlet, and detector to equilibrate at operating
temperature, then retighten the fittings.
Maintaining the Packed Column Inlet
"To Install a
on page 110.)
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