Electricalйconnection
ProlineйPromagйDй400йHART
38
Hauser
6. Firmlyйtightenйtheйcableйglands.
7.
WARNING!
Housingйdegreeйofйprotectionйmayйbeйvoidedйdueйtoйinsufficientйsealingйof
theйhousing.йScrewйinйtheйscrewйwithoutйusingйanyйlubricant.йTheйthreadsйonйthe
coverйareйcoatedйwithйaйdryйlubricant.
Reverseйtheйprocedureйtoйreassembleйtheйsensor.
7.2.3
Ensuring potential equalization
CAUTION
Electrode damage can result in the complete failure of the device!
‣
Makeйsureйthatйtheйfluidйandйsensorйhaveйtheйsameйelectricalйpotential.
‣
Payйattentionйtoйinternalйgroundingйconceptsйinйtheйcompany.
‣
Payйattentionйtoйtheйpipeйmaterialйorйgrounding.
Connection examples for standard situations
Metal, grounded pipe
Thisйconnectionйmethodйalsoйapplies:
• Forйplasticйpipes
• Forйpipesйwithйinsulatingйliner
ййA0017516
Connection example in special situations
Unlined and ungrounded metal pipe
Thisйconnectionйmethodйalsoйappliesйinйsituationsйwhere:
• Theйcustomaryйpotentialйequalizationйisйnotйused
• Equalizingйcurrentsйareйpresent
Ground cable
Copperйwire,йatйleast6йmm
2
йс0.0093йin
2
)
ййA0017517
1. Connectйbothйpipeйflangesйtoйoneйanotherйviaйaйgroundйcableйandйgroundйthem.
2. Mountйtheйgroundйcableйdirectlyйonйtheйconductiveйflangeйcoatingйofйtheйpipeйwithйthe
flangeйscrews.
Summary of Contents for Proline Promag D 400 HART
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