Manual

RevB MN301035 15of16
MAINTENANCE StepTen
After final installation of the pressure transmitter  and its companion receiver, no routine maintenance is
required. A periodic check of system calibration  is suggested. The pressure transmitters are not field
repairable and should be returned if repair is needed (field repair should not be  attempted and may void
warranty).Be sure toinclude a briefdescriptionofthe problem plus any relevantapplicationnotes.Contact
customerservicetoreceiveareturngoodsauthorizationnumberbeforeshipping.
Maintenanceshouldconsistofinspectiontoseethatthetransmitterisfreefromdebrisandnotcoatedwith
anysubstance,whichwouldpreventliquidfromfreelyenteringandleavingthetransmitter.Ifthisoccurs,the
transmittershouldbecleaned.
Testingthetransmitter:
 First,verifythatthesensoriswiredcorrectly.
 Next,checkifthepowersupplyisprovidingtherequiredpower.
 Finallyconfirmthattheloopresistanceisnotexceedingthesensor’sspecification.

If transmitter is not functioning properly, isolate the transmitter from the system and wire as shown below.
Besuretoremovethesensorfromtheclassifiedareawhenperformingthistest.Multimetershouldread4
mAwiththetransmitteroutofliquid.