Teledyne 9060Z Oxygen Equipment User Manual

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Model9060ZManual

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downwardswiththefilterremoved.Probescanalsobemountedhorizontallywithnofilterwithsome

dusts.Anoccasionalautomaticbackpurgeishelpfulinthiscase.

Normallyheatedprobesaresuppliedwithfiltersforapplicationswithparticulatesinthefluegas.The

probe response timeshould betested when the probe is first installed, andthen regularly until it

remains constant for a significant period. Filter purging should be set up on the time periods

determinedbythesetests.Totesttheproberesponsetime,useastopwatchtoobtainthetimefora

probetoachievea63%changefromonereadingtoanother.Ifaprobefilterblockscomplet

elyina

shortperiodoftime,thenthereisnooptionbuttousetheprobewithoutthefilter.Atrialprobewith

filtercanbeinstalledtotestwhetherafilterblockageislikelytooccur.

4.20STRATIFICATION

If the transmitter and probe have been fully tested and the oxygen readings in the flue gas are

incorrect,gasstratificationmaybeoccurring.Thephenomenacannotbeanticipatedforanyparticular

installation.Generally,largeflueshaveoxygendifferencesofapproximatelyonepercentacrossthe

flue.Occasionallyanoxygenerrorofseveralpercentma

yoccurinaflueofanysize.Movingtheprobe

toanewlocationnormallysolvesthisproblem.Theeffectsofstratificationcanbereducedbyusing

twoprobesandaveragingthetwooxygenreadings.ThiscanbeachievedwithinaTeledyneAnalytical

Instruments9060Ztransmittercontrollingtwopr

obes.

4.21CONNECTINGAPRESSURETRANSDUCER

Iftheprocessgaspressurevariesmorethan4"WGandthereforerequiresautomaticcompensation,

connectapressuretransducerasshownbelow.PlacealinkacrossLK2,neartotheinputterminals24

&25.Ifthelinkisnotpopulated,youcanachievethesamethingconnectinga120Ωresistoracross

thetwoterminals.Apressurechangeof4"WGwillcauseachangeinthecalculatedoxygenreading

ofapproximately1%.

Therearenocalibrationadjustmentsforthezeroorspanofthepressuretransducerinput.Setthe

transducerscalerangeinthecommissioningmenu‐SeeSection7.2.8.Thepressurecanbedisplayed

onthelowerlinebyenablingthecorrespondingoption.SeeSection6.3.2.



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Teledyne 9060Z Oxygen Equipment User Manual