Maintaining the NPD 11
Maintaining Your GC 227
12 If not replacing the jet, skip to step 19.
13 Remove the column from the detector.
14 Loosen the jet with a nut driver.
15 Pull the jet straight out of the detector. Use tweezers, if
necessary.
16 Place the jet in the detector body.
17 Using a nut driver, tighten the jet 1/6 turn past finger-tight.
Do not overtighten.
18 Attach the column to the detector. (See “To Attach a
Capillary Column Adapter on an Adaptable NPD” on
page 214.)
Figure 7 NPD lower ceramic insulator and metal C-rings
Metal C-ring, bottom
Ceramic insulator, lower
Metal C-ring, bottom
CAUTION
The adaptable NPD jet is longer than the capillary optimized NPD
extended jet and should never be installed in a capillary optimized
detector.
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