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Agilent Technologies G2621-64000, Руководство по установке

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Installing a Flame Ionization Detector on an Agilent 6850 Gas Chromatograph

9

Remove the Existing Detector and Flow Manifold

1.

On the top of the lid, loosen the connector cover plate screws and 
remove the plates.

2.

Disconnect the gas fittings. The figure shows the FID manifold; the TCD 
manifold is similar but has only one gas connection.

3.

Trace the ribbon cable from the flow manifold and disconnect it from 
the harness.

4.

Remove the three manifold mounting screws.

5.

Remove the screws holding the detector assembly in place.

Cover plate screws (4)

Manifold mounting

Gas fittings

Gas manifold
(FID shown)

screws

Содержание G2621-64000

Страница 1: ...Installation Guide Flame Ionization Detector on a 6850 GC Accessory G2621 ...

Страница 2: ...he unit against unintended operation Refer servicing to qualified service personnel Substituting parts or performing any unauthorized modification to the instrument may result in a safety hazard Disconnect the AC power cord before removing covers The customer should not attempt to replace the battery or fuses in this instrument Safety Symbols Warnings in the manual or on the instrument must be obs...

Страница 3: ... Ionization Detector on an Agilent 6850 Gas Chromatograph This kit contains Kit G2621 64000 Qty Flame ionization detector system 1 Performance evaluation sample kit 1 Nut warmer cup assembly 1 Nut warmer insulation 1 Wrist strap disposable large 1 Screw M4 x12 mm pan head 3 Installation sheet this document 1 ...

Страница 4: ... is not required for installation Tools Required Safety Information Before continuing read the safety information on your Agilent 6850 Gas Chromatograph User Information CD ROM Torx T 20 driver Flat blade screwdriver Open end wrenches Nutwarmer Insulation Screws Ribbon cable Heater sensor cable FID assembly Ignitor cable Flow module cable Flow module FID signal board 3 pieces ...

Страница 5: ...d let them cool down Turn off all detector gases at their supply then turn off the main power switch and unplug the power cord 1 Open the lid If a column is installed disconnect it at the detector end Remove the nut warmer insulation and capillary adapter if present Close the lid 2 Turn all gases off at their sources Disconnect the carrier and detector gas tubing from the back panel of the instrum...

Страница 6: ...ess near the injection part cooling fan 2 Disconnect the cable at the connector Raise the Lid to the Service Position 1 Open the lid Locate the counterbalance cam in the left rear corner under the lid Loosen the screw on the right side of the cam This allows the stop plate to drop down Lid top cover without valve box accessory Remove T 20 Torx screws 8 places Remove detector cover if desired Remov...

Страница 7: ... 2 Raise the lid until it is stopped by the safety cable 3 Raise the stop plate and tighten the screw to lock the lid in the upright service position WARNING The lid is heavy Always lock the lid when it is in the service position Stop plate Screw Counterbalance cam Cam follower ...

Страница 8: ...as Chromatograph 6 Remove the Detector Electronics Cover 1 Loosen the two bottom screws on the detector electronics cover 2 Remove the top screw on the cover 3 Lift and remove the detector electronics cover Remove screw Detector electronics cover Loosen screws ...

Страница 9: ...the signal board FID Disconnect the ribbon cable Unplug the ignitor cable Pass both cables through the hole to the top side of the lid The ribbon cable connector will not pass through the rubber grommet in the hole Use a small screwdriver to push the grommet to the top of the lid the cables will now fit through the hole Ribbon cable Signal board FID shown Signal board clamp A D converter board ...

Страница 10: ...ess down on the orange tabs Pass the disconnected wires through the hole to the top side of the lid 7 Lower the stop plate on the lid cam Pull the lid forward until the cam follower rests on the curved surface of the cam Leave the stop plate in the down position 8 Close the lid Ribbon cable connector Ignitor cable connector Switching valve cable connector PRT wires Filament wires ...

Страница 11: ...the plates 2 Disconnect the gas fittings The figure shows the FID manifold the TCD manifold is similar but has only one gas connection 3 Trace the ribbon cable from the flow manifold and disconnect it from the harness 4 Remove the three manifold mounting screws 5 Remove the screws holding the detector assembly in place Cover plate screws 4 Manifold mounting Gas fittings Gas manifold FID shown scre...

Страница 12: ... manifold out of the lid as a unit WARNING The fibrous insulation material can cause irritation to the skin eyes and mucous membranes Always wear gloves when working with the insulation If the insulation is flaky crumbly wear protective eyewear and respirator 7 Remove any insulation that may be in the hole under the detector Mounting screws one concealed Mounting screws ...

Страница 13: ...Secure the manifold to the lid with three screws 4 Plug the manifold ribbon cable into its connector 5 Install the two connector cover plates 6 Connect the gas supply lines as shown below If the previous detector was a TCD the A and H lines should be folded up in the space under the fittings Unfold them being careful to avoid kinks and feed them up to the manifold area Screws 4 places Ignitor cabl...

Страница 14: ...on cable through the hole into the signal board space 3 Use a small screwdriver to install the grommet around the cables in the oblong hole 4 Connect the ribbon and ignitor cables to the signal board 5 Turn the signal board over plug it into the A D converter board and secure it with the signal board clamp 6 Install the detector electronics cover and tighten all three screws 7 Lower the stop plate...

Страница 15: ...13 9 Install the lid top cover Finishing Up 1 Install the capillary adapter if used 2 Restore the column connection 3 Restore carrier and other gases to the instrument 4 Restore power 5 Apply your normal operating pressures Leak check the manifold back panel and column fittings ...

Страница 16: ...14 ...

Страница 17: ......

Страница 18: ...Printed on recycled paper This product is recyclable Agilent Technologies Inc Printed in USA Dec 2000 G2621 90107 ...

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