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Agilent Technologies 6820 GC, Installation Manual, Page: 13 / 18

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Agilent Technologies 6820 GC Installation Manual Download Page 13

Installation Guide: Flame Ionization Detector (FID)

13

 

•

The two connectors must be joined in the proper 
orientation for correct ignitor operation; align the small 
triangle found on the FID ignitor extension cable 
connector with the number 

1

 found on the ribbon cable 

connector, then push the two connectors fully together.

3

In the flow control (left side) portion of the GC, note labeling 
and wire colors for the four separate "push-on" connectors 
located near the detector flow control modules:

•

If the previously-installed flow module is in the upper 
detector position, select the red pair of wires (labeled 
"FRONT") and push each connector onto an electrical 
terminal at the back of the flow module (no polarity).

Summary of Contents for 6820 GC

Page 1: ...rocedures refer to safety information at the end of this document Parts list Description Quantity T 20 Torx screw M4 1 1 8 inch front ferrule brass 3 1 8 inch back ferrule brass 3 Nut 1 8 inch brass tubing 3 Cable tie 100 3 mm 4 Nut warmer cup assembly 4 Nut warmer insulation 19234 60715 3 Nut warmer insulation G1176 01006 1 Micro switch cable assembly 1 FID sticker English 1 FID sticker Chinese 1...

Page 2: ...ady existing detector For a two detector configuration factory placement rules are as follows A thermal conductivity detector TCD if present is always placed in the front location An FID if present is always placed in the back location Steps 1 Preparing the GC 2 Positioning and Securing the Detector 3 Connecting the Detector 4 Installing the Flow Control Module 5 Installing the Ignitor Extension C...

Page 3: ...long the lower edge of the left side flow control panel Slide the panel slightly to the rear and lift it off 5 In the same manner remove two screws along the lower edge of the right side electronics panel Slide the panel slightly to the rear and lift it off 6 Remove the back panel by removing two screws at its bottom edge loosening two screws at its top edge and the lifting off the two top screws ...

Page 4: ...g and Securing the Detector 1 If necessary remove the round metal cutout on the oven top from the detector position to be used Cut the metal circle with diagonal cutters so its nibs are connected to the piece removed Discard the cutout CAUTION It is neither necessary nor advisable to separate a detector from its flow control module as doing so may cause leaks Although handling the detector and con...

Page 5: ...he oven top to create an opening into the oven Method 1 Use a sharp knife to cut out insulation using the scribed circle as a guide Method 2 Pierce the insulation with a screwdriver Rotate the screwdriver around the edge of the scribed circle to remove excess insulation Remove any pieces of insulation which fall inside the oven CAUTION Be careful to remove only insulation within the scribed circle...

Page 6: ...insulation and removed oven insulation to pack around the bottom and sides of the detector The goal is to fill all voids around the detector body as it is placed into the cavity 5 Partially tighten the four pallet screws with a T 20 Torx screwdriver then tighten them evenly Pallet Captive screws 4 Flow module not shown ...

Page 7: ... main circuit board connector associated with the installed detector Tighten the screw on the PC board bracket with a T 20 Torx screwdriver to secure the board CAUTION Printed circuit board components can be damaged by static electricity use a properly grounded static control wrist strap when handling the detector board Insert into main board Tighten screw ...

Page 8: ...8 Installation Guide Flame Ionization Detector FID 2 Attach the signal cable and ignition wire to the PC board Ignitor cable Signal cable ...

Page 9: ...his section describes installation of the detector flow control module Heater Sensor plug Heater and sensor receptacle BD back detector Heater and sensor receptacle FD front detector Flow module not shown CAUTION It is neither necessary nor advisable to separate a detector from its flow control module as doing so may cause leaks Although handling the detector and connected flow module as a unit is...

Page 10: ...ing and wiring located behind the oven top and through either slot to the detector Avoid making sharp bends in the tubing 4 At the same time route the open ended air vent tube from the flow module towards the rear of the GC along the inside of the flow control portion left side of the instrument The tube should be routed to be as straight as possible 5 Verify that the three valves on the flow modu...

Page 11: ...ns and for proper swage techniques to connect hydrogen and air supply gases to the installed detector flow module Installing the Ignitor Extension Cable Installing ignitor wiring for this new FID depends upon whether this FID is the first FID installed on the GC or if this FID is being installed as a replacement or as a second FID If this is the first FID installed on the GC continue with the foll...

Page 12: ...t single connector is routed to the electronics right side of the GC while the end with four separate push on connectors is routed to the flow control left side Route the end with the flat single connector to be located below the previously installed FID printed circuit board Route the end with the four separate push on connectors to be located at the rear of the previously installed flow control ...

Page 13: ...e ribbon cable connector then push the two connectors fully together 3 In the flow control left side portion of the GC note labeling and wire colors for the four separate push on connectors located near the detector flow control modules If the previously installed flow module is in the upper detector position select the red pair of wires labeled FRONT and push each connector onto an electrical ter...

Page 14: ...nal at the back of the flow module no polarity In either case there is no polarity concer either connector may be used on either terminal 4 Use cable ties to secure the cable and previously installed FID tubing to existing wiring and tubing running behind the oven top Installing the Insulation Cup 1 Install insulation into the cup 2 Push the wire spring lever at the bottom of the cup to the right ...

Page 15: ...ove in the detector fitting Restoring the GC to Operating Condition 1 Restore gas supplies and check for leaks particularly at all new connections Follow the leak test procedures described in your 6820 Maintenance and Troubleshooting manual 2 Reinstall GC covers and panels 3 Restore GC electrical power 4 Switch off electrical power then switch it on again to ensure the new configuration is properl...

Page 16: ...nt Det or Back Det respectively If the detector has been properly installed you will see the following display 6 Verify detector operation by following the checkout procedure described in your Getting Started manual 前检测器 FID 温度 39 关 输出 0 0 FRONT DET FID Temp 39 Off Output 0 0 ...

Page 17: ...Installation Guide Flame Ionization Detector FID 17 ...

Page 18: ...ghai 200131 P R China Safety Notices CAUTION A CAUTION notice denotes a hazard It calls attention to an operating procedure practice or the like that if not correctly performed or adhered to could result in damage to the product or loss of important data Do not proceed beyond a CAUTION notice until the indicated conditions are fully understood and met WARNING A WARNING notice denotes a hazard It c...

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