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Overview
Table 1
Available FID Maintenance Kits
Part Number
Description
G1531-67000
FID Maintenance Kit for "Cleaning"
Contains: Instructions, ignitor glow-plug,
2 PTFE collector insulators, FID housing gasket,
cleaning brushes, jet cleaning wire
G1531-67001
FID Maintenance Kit for "Rebuilding"
Contains: Instructions and a complete FID
collector assembly
Materials Required for FID Maintenance
Agilent FID Maintenance Kit Instructions
For 7890, 7820, 6850, and 6890 Series GCs
This document contains instructions for two different FID
Maintenance Kits.
Please review the whole document before starting the
procedures.
• One of the two maintenance kits listed in
• The appropriate FID Jet for your configuration and
application. See
"Selecting a Replacement FID Jet"
• T20 Torx screwdriver.
• 1/4-inch nut driver.
• Tweezers.
• 1/4 x 5/16-inch wrench.
• 7/16 x 9/16-inch wrench if adaptable FID.
Agilent Technologies
Purpose
Key parts are replaced, most are cleaned per
the instructions provided. Jet and column
adapter ordered separately. More labor
intensive – about 1 hour labor.
The entire collector assembly including the
ignitor is replaced.
The jet and column adapter must be ordered
separately – about 15 minutes labor.
Table
1.
on page 2.
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Summary of Contents for Agilent Technologies G1531-67000
- Page 1 Table 1 Available FID Maintenance Kits Part Number Description Purpose G1531-67000 FID Maintenance Kit for “Cleaning” Key parts are replaced, most are cleaned per the instructions provided. Jet and column Contains: Instructions, ignitor glow-plug, adapter ordered separately. More labor 2 PTFE collector insulators, FID housing gasket, intensive –...
- Page 2 • Lint-free gloves. • Clean cloth. • Reagent grade methanol and glassware. • Ultrasonic bath (optional). • Aqueous detergent. Preparing the GC for Maintenance Load a GC Maintenance Method if you have one prepared, or do the following: Set the oven temperature to 35 °C. When the temperature is reached, set the oven to “OFF”.
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Page 3: General Precautions
Adaptable FID Jets Jet type Part number Jet tip id Length Capillary 19244-80560 0.29 mm (0.011 inch) 61.5 mm Capillary, high- temperature 19244-80620 0.47 mm (0.018 inch) 61.5 mm (use with simulated distillation) Packed 18710-20119 0.46 mm (0.018 inch) 63.6 mm Packed, wide-bore 18789-80070 0.76 mm (0.030 inch) - Page 4 Detector Disassembly Procedure Collector Assembly Removal — Follow these initial steps for either of the FID Maintenance Kits C A U T I O N Components can be damaged by static electricity: be sure to wear an ESD strap grounded to the GC chassis while performing this procedure.
- Page 5 Remove the collector assembly. If you are using the “Rebuilding Kit” part number G1531-67001, proceed to N O T E “Remove the Jet” on page 13 to complete the appropriate procedures. FID Maintenance Kit Instructions...
- Page 6 Procedure for Performing Maintenance with the FID “Cleaning” Kit – Part Number G1531-67000 To avoid contaminating the FID, wear clean, lint-free gloves when C A U T I O N handling the collector assembly. Disassemble the collector assembly Figure 1...
- Page 7 Remove the castle assembly. Remove the collector and upper PTFE insulator. Remove the Lower PTFE Insulator. FID Maintenance Kit Instructions...
- Page 8 Remove the bottom silicone rubber housing gasket. Cleaning the FID components Procedure: cleaning the collector Clean the inside of the collector with methanol using the larger brush provided in the kit. Rinse the inside and outside of the collector with methanol. Air dry the collector –...
- Page 9 Optional Ultrasonic Cleaning This procedure summarizes the general steps for cleaning the WA RNING parts. You need to follow the standard safety practices of your laboratory for handling chemicals. For example, wear the appropriate safety eye glasses, lab coat, and gloves. Place the parts to be cleaned in your glassware, cover them with the aqueous detergent, and place them in the ultrasonic bath.
- Page 10 Reassembling the FID collector assembly Insert the first PTFE insulator from the kit into the collector housing. Insert the cleaned collector through the PTFE Insulator – The long end goes down! Long end Place the second insulator over the collector. Orientation of the collector and insulators in the FID FID Maintenance Kit Instructions...
- Page 11 Place the castle assembly on top of the collector with the threaded hole for the ignitor oriented toward the slot for the interconnect. Place the spring washer over the castle and screw on the knurled nut. Tighten the knurled nut firmly. FID Maintenance Kit Instructions...
- Page 12 Turn over the collector assembly and install the new silicone rubber gasket. Make sure that the gasket lays flat against the bottom of the collector. Install the new ignitor with the copper washer installed as shown below. Tighten the ignitor with a 5/16-inch wrench. FID Maintenance Kit Instructions...
- Page 13 Remove the Jet Continued from page 5 if you are using the “Rebuilding Kit” part number G1531-67001. Loosen the FID jet with a 1/4 inch nut driver. Remove the jet using tweezers – be careful not to touch or bend the interconnect spring. FID Maintenance Kit Instructions...
- Page 14 Examine the detector base for any particulates – blow out the base with compressed air or nitrogen. Clean the Detector Base Clean any built-up graphite from the detector base. The “Capillary Optimized” base is shown below. FID Maintenance Kit Instructions...
- Page 15 If you have an adaptable FID base – remove the capillary adapter with a 9/16-inch wrench, and clean any graphite out of the adapter out with a wire. Optionally, sonicate the part. Re-install the adapter with a new 1/4-inch Swagelok nut and graphite/Vespel ferrule or brass front and back ferrule.
- Page 16 Install the Cleaned or Replacement Jet If the jet is new, tighten the jet 1/6-turn past finger tight. If you are re-using the old jet be very careful not to over-tighten the C A U T I O N jet to avoid breaking it off in the FID Base! Install the Replacement or Cleaned Collector Assembly Carefully lower the new or cleaned and reassembled collector assembly straight down on to the FID base –...
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Page 17: Final Procedure
Reconnect the ignitor extension cable. Tighten the knurled nut and ignitor one more time. Final Procedure Inlets, detectors, and the oven are insulated with fibrous WA RNING materials which may cause irritation to skin, eyes, and/or mucous membranes. Always wear gloves when working with the insulation. -
Page 18: Warranty
Should Agilent and the user have a separate written agreement with warranty terms covering the material in this document that conflict with these terms, the warranty terms in the separate agreement shall control. © Agilent Technologies, Inc., 2015 Printed in USA or China First edition, November 2015 Agilent Technologies, Inc.