Teledyne 9060Z Oxygen Equipment User Manual

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Model9060ZManual

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51

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11.GASCALIBRATIONCHECKANDPURGE

The oxygen sensor that is used in the Teledyne Analytical Instruments oxygen probe is extremely

predictable,stableandreliable.Forthisreason,thecalibrationofaTeledyneAnalyticalInstruments

oxygen system does not require the use of calibration gases. However, all Teledyne Analytical

Instrumentsoxygenprobeshaveabuiltingasconnectionthatdoesallowtheaccuracyoftheprobeto

becheckedin‐situ.Thischapterdescribestheoperationofthisgascheckingsystem.

The 9060Z has a timer and solenoid driving system that can be configured to admit a certified

calibrationgasintotheprobeoranairsupplytopurgetheprobefiltersthroughthegasconnection.

Boththecalibrationgasandthefilterpurgegasmustbepipedtotheportontheprobelabeled“CAL”.

Therearetwosolenoidsdriversinthe9060Ztransmitter.Theycanbeusedforanycombinationsof

gascheckingand probe filter purging.The only limitationis thatif the transmitter isin dual probe

mode,thensolenoid#1mustbewiredandplumbedtotheprobe#1andsolenoid#2mustbewired

andplumbedtoprobe#2.

ThetransmittercanalsobeconfiguredtobeinaMANUALorAUTOMATICpurgeandgascheckmode.

Function# FunctionDescription  Options

20(29) Solenoid1(2)Operation  CalibrationGas/Purge √ √ √

21(30) Solenoid1(2)Auto/Manual Automatic/Manual  √ √ √

22(31) Solenoid1(2)StartTime  00:00to23:45√√

23(32) Solenoid1(2)Period  1hour–7days√√

24(33) Solenoid1(2)Duration  1–90seconds√√

25(34) Solenoid1(2)PostFreeze  5–300seconds√√

26(35) OxygenContentCalGas1(2) 0.1–20.9%√

27(36) MaxCalGas1(2)PositiveError 0.1%to3.0%√

28(37) MaxCalGas1(2)NegativeError 0.1%to3.0%√

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11.1PURGE

Forprocessesthathaveparticulatepresentinthegasstream,probefiltersarenecessaryandshould

beback‐purgedwithsufficientfrequencytoavoidblockedfilters.Select‘Purge’infunction#20(29)

and‘Automatic’infunction#30andthensetthetimesinfunction#22(31)to#25(34)Theoutputs

canbefrozenduringpurgingifselectedinCOMMISSIONINGmenufunction#19.Aflowswitchcanbe

wiredtoterminals16and17.Iftheflowisnotsufficientattheendofthepurgecycletoclosethe

contactsoftheflowswitcha‘Probe 1(2)FilterBlocked’ alarmisgenerated.If aflowswitchisnot

beingusedashortcircuitshouldbeplacedacrossterminals16and17tosuppressthe‘Probe1(2)

FilterBlocked’alarm.

11.2CALIBRATIONGAS

Ifitisrequiredtoautomaticallychecktheoxygenprobeandtransmitteronline,select‘Calibration

Gas’infunction#20(29)and‘Automatic’infunction#30andthensetthetimesinfunction#22(31)

to#25(34)andthegaslevelsinfunction#26(35)to28(37).Ifthetransmittermeasurementdoesnot

fall within the limits set in function #26(35) to28 (37) a ‘Gas1 (2) Calibration Error’ alarm will be

generated.Ifthetransmitterhas‘Automatic’selectedinfunction#21(30)andoneoftheGAS/PURGE

keysispressedinRUNmode,theautomaticcyclewillbestartedandth

ealarmswillbechecked.The

cyclecanbestoppedatanytimebypressingthesamekeyduringthecycle.

FunctionsavailableifeitherCalibrationGasorPurge andManualare selected

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FunctionsavailableifPur

e andAutomaticareselected

FunctionsavailableifCalibrationGas andAutomaticareselected

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Teledyne 9060Z Oxygen Equipment User Manual