Teledyne 9060Z Oxygen Equipment User Manual


 
Model9060ZManual
20
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Themainspowermustbeeither100/110VACor220/240VACwithamainsfrequencyof50or60Hz
Thesupplycircuitmustbefusedtoatleast10Ampsandhaveadualpoleisolationswitchwithin
easyaccessoftheoxygentransmitter.Theisolationswitchmustbemarkedastheisolationswitch
forthisequipment.Itisrecommendedthataseparateisolationswitchbeusedforeachtransmitter
sothatatransmittercanbeservicedindividually.
Thepowersupplycablesmustbesuppliedandinstalledaccordingtolocalregulations
The earth connection must comply with the local regulations must have a current carrying
capability
equalorgreaterthanthesupplyfusecurrentrating
Theearthconnectionmustbeconnectedtotheprimaryearthstudinsidethetransmitteronthe
righthandside
Allother bonded earth connections from the external wiring must be connected to the primary
earthstud.
Alloperationsrelatingtheelectricalwiringandinstallationmustbecarriedoutbyqualifiedpersonsin
accordancewiththesafetyregulationsandthewiringrules.
NOTE:Thepowerswitchinthetransmittercanbeusedtoturnoffthetransmitter.Theremustbean
approved isolation device installed to provi
de complete isolation of the mains power to the
transmitter.Themainswiringterminalmustnotbeusedasandisconnectdevice.
4.6HEATERINTERLOCKRELAYS
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HeaterSupplyInterlockConnectionforHeatedProbes
Ifasafetyinterlockisnotrequired,awiremustbeconnectedbetweenterminals10&11toenable
Theheatersonheatedprobes
Processalarms
Autopurgeandautocalchecking
Runtimetimer
4.7CONNECTINGANOXYGENPROBECABLE
Connecttheprobeleadasshown inthefollowingdrawings.Unheatedprobeleadshaveintegral
referenceair tube.An adaptor hasbeen supplied toconnect thistube to quarterinch flexible PVC
tubing,fromtheairpumporreferenceairsupply.
CAUTION
Explosion protection for heated probes is achieved by switching the power to the probe heater off
wheneverthemainfuelvalveisclosed.
Theprincipleofsafetyisthatifthemainfuelvalveisopenthenmainflamehasbeenestablished.Withthis
primarysourceofignitionon,theprobeheatercanbesafelyswitchedon.Themostdanger
oussituationisif
fuelleaksintothecombustionappliancewhenthefuelvalveisclosed.Whenpowerisremovedfromthe
mainfuelvalvetheheatershouldalsobeswitchedoff.
Toachievethisprotection,connectamainfuelvalvevoltagefreecontac
ttothe‘BURNERINPUT’terminals
10 & 11. When themainfuel valve is open, the voltage free contact should be closed. Forinstallations
wherethereisnoriskofexplosion,connectalinkbetweenterminalsnumber10&11.