Agilent Technologies 6850 Series II User Information page 192

Table 37. Jets for the FID
Jet type
Capillary
Packed
Packed wide-bore
(use with high-bleed applications)
High-temperature
(use with simulated distillation)
To change a jet, you must first remove the FID collector assembly. See
"Removing the collector" on page
This procedure is divided into three parts: removing and inspecting the jet,
cleaning the jet (optional), and installing the jet.
Tools
•
•
Procedure
1.
2.
3.
4.
Warning High temperature.
5.
6.
Released: March 2004
T-20 Torx screwdriver
1/4-inch nut driver
Load the SERVICE method, or reset the detector and oven temperatures to
OFF, or turn the main power switch off. Allow the detector and oven to
cool to room temperature.
Turn the inlet and detector gas pressures off at the sources.
When the oven is cool, remove the column and plug the detector to
column fitting.
Confirm that the electrometer is turned off. If you are not sure, turn the GC
main power off.
Wear heat resistant gloves, if the detector is hot.
Remove the three screws holding the collector assembly in place. Lift off
the assembly. The insulator can remain in the collector bottom.
6850 Series II GC User Information
Maintaining a flame ionization detector (FID)
Part no. Jet tip id
19244-80560 0.29 mm
(0.011-inch)
18710-20119 0.47 mm
(0.018 inch)
18789-80070 0.030 inch
19244-80620 0.47 mm
(0.018-inch)
195.
Routine Maintenance: Detectors
page 192 of 256