Teledyne 9060Z Oxygen Equipment User Manual

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Model9060ZManual

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23

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The on‐line auto purge and calibration check system is optional. For details on its operation see

chapters4.24,4.25andchapter11.

Toautomaticallysenseablockedprobefilter,aflowswitchshouldbeinstalledinthe‘purge’lineto

theprobe‘CAL’port.Itshouldbeadjustedsothatitenergizesjustbelowthepurgeflowwithnewor

cleanfiltersinstalled.Theflowswitchcontactsshouldbeconnectedtoterminals16&17(FLOWSW).

Ifthefilterisstillblockedorpartlyblockedafteranautopurgecycle,theflowswitchwillnotenergize

andwillthereforecausea‘Probe1(2)FilterBlocked’alarm.

After installation the purge/cal system should be tested thoroughly for leaks. Any leaks can cause

significanterrorsiftheflueisatnegativepressure.Iftheflueisatpositivepressure,anoutwardleak

cancausecorrosioninthepurge/calsystempipingandfittings.

Ifprobe/filterpurgingisrequiredbuta“Probe1(2)FilterBlocked”alarmisnotrequired,donotinstall

theflowswitchbutlinkterminals16&17.

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4.12CONNECTINGREFERENCEAIR

Foroxygenprobes,a1/4”tubeconnectoronthetransmittershouldbeconnectedviaanylon,copper

orstainlesssteeltubetothe‘REF’connectorontheprobe.Iftwoprobesarebeingused,a“T”fitting

mustbesuppliedtoprovidereferenceairsupplytobothprobes.

4.13CONNECTINGTHETRANSMITTE R TOAMODBUS™NETWORK

Thetransmittercanbenetworkedtoothertransmittersandtoanetworkmaster.Thenetworkuses

the transmitter’s RS485 port. Up to 31transmitters can be connectedto the network, and can be

interrogatedbytheNetworkMaster.

NOTE: Hardware Protocol Selection The communications port of the 9060Z can be configured to

communicateoneitherRS232orRS485.IfthetransmitteristobeusedonaMODBUSnetwork,the

9060ZtransmittermustbesettoRS485.Forfurtherdetailsseechapter7.2.25,CommunicationPort

Options.

NOTE:TerminatingResistorThereisaterminating100ohmresistorfittedtothe1732‐1PCB.Lin

kLK3

(TERM),inthebottomleft‐handcornerofthePCB,isusedtoconnecttheterminatingresistor.Link

LK3mustberemovedonalltransmittersexceptthetransmitterontheendofthenetworkline.Ifthe



AutomaticPurge&

Calibration check

System Wiring

Schematic



AutomaticPurge&

Calibration check

System Piping

Schematic

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Teledyne 9060Z Oxygen Equipment User Manual