hp 6890 fid installation guide (g1531-90300) 6890gc-s/6890fid... · 2016-06-13 · 6890 has been...

InstallationGuide

Flame Ionization DetectorAccessoriesHP G1561AHP G1562AHP G1591AHP G1598A

HP 6890SeriesGas Chromatograph

ManualPart No.G1531•90300

1

Little Falls DivisionHewlett-Packard Company2850 Centerville RoadWilmington, DE 19808-1610

DHewlett-PackardCompany 19891995

All Rights Reserved.Reproduction, adaptation,or translation withoutpermission is prohibited,except as allowed underthe copyright laws.

HP part numberG1531-90300

Second Edition, Nov 1995

Printed in USA

WarrantyThe information containedin this document is subjectto change without notice.

Hewlett-Packard makesno warranty of any kindwith regard to thismaterial, including, butnot limited to, theimplied warranties ofmerchantability andfitness for a particularpurpose. Hewlett-Packardshall not be liable for errorscontained herein or forincidental or consequentialdamages in connection withthe furnishing,performance, or use of thismaterial.

Safety InformationThe HP 6890 GasChromatograph meets thefollowing IEC(InternationalElectrotechnicalCommission) classifications:Safety Class 1, TransientOvervoltage Category II,and Pollution Degree 2.This unit has beendesigned and tested inaccordance with recognizedsafety standards anddesigned for use indoors. Ifthe instrument is used in amanner not specified by themanufacturer, theprotection provided by theinstrument may beimpaired. Whenever thesafety protection of the HP6890 has beencompromised, disconnectthe unit from all powersources and secure the unitagainst unintendedoperation.Refer servicing to qualifiedservice personnel.Substituting parts orperforming anyunauthorized modificationto the instrument mayresult in a safety hazard.Disconnect the AC powercord before removingcovers. The customershould not attempt toreplace the battery or fusesin this instrument. Thebattery contained in thisinstrument is recyclable.

Safety SymbolsWarnings in the manual oron the instrument must beobserved during all phasesof operation, service, andrepair of this instrument.Failure to comply withthese precautions violatessafety standards of designand the intended use of theinstrument.Hewlett-Packard Companyassumes no liability for thecustomer’s failure tocomply with theserequirements.

WARNING

A warning calls attentionto a condition or possiblesituation that could causeinjury to the user.

CAUTION

A caution calls attention toa condition or possiblesituation that coulddamage or destroy theproduct or the user’s work.

The following safetyinstructions should befollowed at all times:

Hydrogen (H2) isflammable and is anexplosion hazard whenconfined in an enclosedspace such as the oven. Inany application usinghydrogen, turn off thesupply at its source beforeworking on the instrument.

The flame ionizationdetector (FID),nitrogen-phosphorusdetector (NPD), and flamephotometric detector (FPD)use hydrogen gas as a fuel.Be sure all hydrogen gas isshut off to the detectorsbefore shutting off thepower to the instrument.

The oven, inlet, anddetector zones may be hotenough to cause burns.Turn off the heated zonesand allow time for coolingbefore working on theinstrument.

To avoid shock hazard,turn off the power andunplug the instrumentbefore removing theinstrument’s covers.

Wear safety glasses whenusing compressed gas andwhen handling glass orfused silica capillarycolumns. It is good practiceto wear safety glasses at alltimes when working withthe instrument.

The insulation on the GC ismade of refractory ceramicfibers (RCF) andrecommend the followingsafety procedures.Ventilate your work area.Wear long sleeves, gloves,safety glasses, and adisposable dust/mistrespirator. Dispose ofinsulation in a sealedplastic bag. Wash yourhands with mild soap andcold water after handling.

Installing a Flame Ionization Detector

2

Overview

OverviewThis sectionreviews the procedurefor installinga flame ionizationdetector(FID) on an HP 6890Gas Chromatograph(hereafter referred toas the GC). Before followingthis procedure,refer to the safetyinformationon the insidefront cover.

Parts ListEPCU FID assembly: capillary

optimized or adaptableU Top insulationU BottominsulationU Nutwarmer cup and

insulation(for adaptableFID only)

NonEPCU FID assembly: capillary

optimizedor adaptableU Top insulationU BottominsulationU Makeupgas regulatorU 2 machinescrewsU Nutwarmer cupand insulation

(for adaptableFID only)ToolsU Electrostaticprotectionsuchas groundedwrist strap (HP part no.

9300•0969for large wrists or HP part no.9300•0970for small wrists)U T•20Torx screwdriverU DiagonalcuttersU 7/16•in.wrench(nonEPC detectorsonly)

Steps

1.Preparing the GC2. Installing the flow manifold3. Installing the makeupgas regulator (nonEPC detectorsonly)4.Positioningand securingthe detector5.Connectingthe detector6.Routingthe tubing7. Installing the nutwarmercup(adaptableFID only)8.FID chimneyinsert (optional)9.Restoringthe GC to operatingcondition

10.Calibratingyourdetector(EPC detectoronly)


3

Overview

Flame ionizationdetector

Flow manifold

Makeup gas regulator(nonEPC only)

Printedcircuitboard

Power switch


4

Preparing the GC

Preparing the GC

Hazardousvoltages are presentin the mainframewhen the GC ispluggedin. Avoid a potentiallydangerousshockhazardby unpluggingthepowercordbeforeremovingthe sidepanels.

1. Turnoff the GC and unplugthe powercord.Allow time for all heatedzonesto cooland then turn off supplygasesat their sources.

From the backof the GC:

2. Unsnapand lift off the pneumaticstop cover.

3. Remove the RFI cover. Remove the screw with a T•20 Torx screwdriver,slide the cover to the left until it disengages from the top rear panel, andremove it.

4. If you are installing a nonEPC detector, remove the detector cover platefrom the front or back position by loosening the two screws with a T•20Torx screwdriver and sliding the plate up and off.

5. Loosenthe five screwsin the top rear panelwith a T•20Torxscrewdriver. Graspthe panelat eachendand gently lift it upand thenaway from the GC. Be carefulnot to disruptthe supplytubing.

WARNING


5

Preparing the GC

2

3

4(nonEPC detectors only)

5Loosenfive screws


6

Preparing the GC

d. Pull the pin to the left. e. Slide the detectorcover to the rightand lift it off.

b. Squeeze the clip as shown. c. Pull the clip towardyou.

6. Remove the detectorcover.a. Lift the coveras shownand locate the hinge in the right, rear corner.

DetectorcoverHinge


7

Preparing the GC

Boardcomponentscanbe damagedby static electricity;usea properlygroundedstatic controlwrist strapwhen removingthe electronicscovers.

7. Remove the electronicsside cover. Loosen the two captive screwswith a T•20Torx screwdriver, slide the cover to the rear, and lift it off.

Captivescrews

Electronics side cover

Rear locking tab(underneathcover)

Electronicstop cover

8. Remove the electronicstop cover. Press the rear lockingtab toward the front ofthe GC while lifting the backof the cover. Slide the coverback,up,and out of theGC.

Caution


8

Installing the flow manifold


Boardcomponentscanbe damagedby static electricity;usea properlygroundedstatic controlwrist strapwhen removingthe electronicscovers.

1. From the backof GC, locate the pneumaticscarrier.

Frontdetector

Connectorlocations

Backdetector

Back inlet

Front inlet

2. If you are installing a detectorin the front positionand an inlet is installed in thebackposition,unplugthe backinlet ribboncable.Unlockthe connectorby pushingthe tabsaway from the center.

Pneumatics carrier

Caution


9


3. Locate the troughsin the flow manifoldand the ridges in the pneumaticscarrier.Slide the flow manifold into the carrier, lining up the ridges and troughs.

Frontdetector

Backdetector

Ridges

Troughs

Flowmanifold


10


5. From the front of the GC, securethe flow manifoldto the carrier by tighteningthe captive screwuntil snugusinga T•20Torx screwdriver.

4. Plug the ribboncable into the front or backconnector(see page 8, step2.) Makecertain the connectoris firmly seatedand locked.If the flow manifold is installedand pluggedinto the correctposition,the ribboncablewill retain its fold as shownin the diagram.If you unpluggedan inlet ribboncable in Step 2, replaceit.

Open connector

Lockedconnector

Folded ribboncable

Frontcaptivescrew

Backcaptive screw


11

Installing the makeup gas regulator (nonEPC detectors)


1. Install a screwin the front or backpositionof the pneumaticscarrieras shown.Do not tighten the screw.

3. Place the makeupgas regulator in the front or backpositionof the pneumaticscarrier. Tighten the screwswith a T•20Torx screwdriver.

Front

Back

2. Install a screwin the makeupgasregulatoras shown.Do not tightenthe screw.

Screw


12


4. Connectthe tubeon the makeupgas regulator to the fitting labeled MU on theflow manifold.Tighten the nut fingertight, then use the 7/16•in.wrenchto tightenit 3/4of a turn.Follow the sameprocedurefor connectingthe air and hydrogentubing (labeled at the backof the GC) to the flow manifold.

Makeup gasregulator

Hydrogen

Air

5. Locate the RFI cover that youremovedin Preparing the GC (p.4). Remove the rectangularcutoutin the front or backdetectorposition.Use diagonal cutterstocutthe metal in the two locationsor work the cutoutbackand forthuntil it breaksfree from the cover.

BackCut here

6. Locate the pneumaticscover thatyou removedin Preparing the GC(p. 4). Remove the oval labels inthe front or backdetectorpositionby pushingon the label fromunderneaththe cover.

Back

Front

RFI Cover(from back of GC)

Front

PneumaticsCover(from back of GC)


13

Positioning and securing the detector


1. Remove the roundmetal cutouton the oven top and the squareplasticcutoutinthe electronicscarrier in the front or backdetectorposition,if necessary. Cut themetal circlewith diagonal cuttersso that the nibsare connectedto the pieceremoved.Cut the plasticin six placeswith diagonal cutters.Discardthe cutouts.

2. Lift out the die•cutinsulationplug from the front or backdetectorposition,ifnecessary.

Back

Front


14


Be carefulto removeonly the insulationwithin the scribedcircle.

3. Carefully remove the scribedcircleof insulationfrom the oven top to createanopeninginto the oven.

Method 1:Use an Xactoknife to cutout the insulationusingthe scribedcircleas a guide.

Method 2:Pierce the insulationwith a screwdriver. Rotate the screwdriveraroundthecircumferenceof the scribedcircle to remove excessinsulation.

Clean upany piecesof insulationthat fall inside the oven.

Caution


15


4. Place the bottominsulationin the detectorcavity as shown.5. Place the top insulationin the bottominsulationso that the hole in the insulation

lines upwith the hole in the oven top..6. Place the detectorpallet into the insulatedcavity. Partially tighten the four screws

with a T•20Torx screwdriver. Tighten all the screwsto snugness.

Captivescrews(4)

Pallet

Top insulation

Bottom insulation


16

Connecting the detector


Boardcomponentscanbe damagedby static electricity;usea properlygroundedstatic controlwrist strapwhen handlingthe FID board.

1. Remove the PC boardfrom its staticcontrolbag and slide into the front or backsloton the main circuitboarduntil it is pluggedin. Tighten the screwon the PC boardbracket with a T•20Torx screwdriver.

Front detector slot

Back detector slot

Plugs intomain board

PCboard

Tightenscrew

Caution


17


PCboard

Signalconnector

2. Attach the signal cableand ignition wire to the PC board,if not already connected.

Signal cable

Ignitionconnector

Ignition cable


18


3. Connectthe heater/sensorwire to the squareconnectorclosestto the front or backdetector.

Heater/sensorwire

Heater/sensor connector(front position)

Heater/sensorconnector

(back position)


19

Routing the tubing

Routing the tubing

Route the tubing from the flow manifoldto the detectoras shown.

Back detectortubing

Front detectortubing


20

Installing the nutwarmer cup (adaptable FID)

Installing the nutwarmer cup (adaptable FID)

1. Install the insulationin the cupasshown.

2. Take the insulationcupand pushthewire spring lever at the bottomof thecupto the right to uncoverthe hole.

3. From inside the oven,place the cupover the detectorfitting so that thetop of the cuptouchesthe top of theoven.

4. Release the spring.Make certain thespring fits in the groove of thedetectorfitting.

groove


21

FID chimney insert (optional)

FID chimney insert (optional)

Purchasea PTFE chimneyinsert (HP part no.19231•21050)if youarerunninghighly corrosiveanalytes.These insertsmay be orderedfrom theHP Analytical SuppliesCatalog.

Chimneyinsert


22

Restoring the GC to operating condition

Restoring the GC to operating condition

1.Reinstall the electronicssidepanel.

2.Reinstall the top rear panel

3.Reinstall the detectorcover.

4.Reinstall the electronicstop cover.

5.Plug in the GC and turn it on.

6.Press [Front Det] or [BackDet]. If the detectorhasbeenproperlyinstalled,youwill see the followingdisplay:

EPC NonEPC

FRONT DET (FID)Temp 24 Off <H2 flow 0.xZ OffAir flow 0.xZ OffMkup flow 0.xZ OffFlame OffOutput 0.0

FRONT DET (FID)Temp 24 Off <H2 flow OffAir flow OffMkup (N2) OffFlame OffOutput 0.0

ZAn actual flow value is displayedwhen the gasesare off or not connected.This is not an error. After thegasesare connectedand the detectoris operational,the actual flow values will be equal to the setpointvalues.


23

Calibrating your detector (EPC only)

Calibrating your detector (EPC only)

Yourdetector’s flow manifoldcontainsa pressuresensorthat mustbezeroedafter it is installedon yourGC. This calibrationprocedureensuresan accuratedetectordisplay.

Do not connectthe detectorand makeupgasesto your flow manifolduntilyouhave zeroedyourdetector’s pressuresensor.

1. Plug in yourGC and turn it on, if youhaven’t already doneso.

2. Wait 15 minutes.This allowsyourGC to reachthermal equilibrium.

3. Zero the detector’s pressuresensor:

a. Press [Options],scrollto Calibration and press[Enter].b. Scroll to Front detector or Back detector and press[Enter].c. Scroll to Oxidizer zero and press[On].d. Scroll to H2 zero and press[On].e. Scroll to Makeup zero and press[On].

4. Turnoff yourGC and unplugthe powercord.

5. Plumb the air, hydrogen,and makeupgasesto yourdetector. See theHP 6890Site Preparation and Installation Manual for instructions.

6. Reinstall the RFI cover.

7. Replacethe pneumaticstop cover.

8. Plug in the GC again and turn it on.

Caution

This productis recyclable.

Printed on recycledpaper.

Hewlett•PackardCompanyPrinted in USA 11/95

ManualPart No.G1531•90300

hp 6890 fid installation guide (g1531-90300) 6890gc-s/6890fid... · 2016-06-13 · 6890 has been...

Documents