Some day we measured in field power transmitter 23VDC. But the Transmitter blank (OFF) on display. Measured current just +/- 1 mAmp.
Disconnect the transmitter and checked in the workshop. The transmitter could be ON.
What happening in the field...? Negative (-) pole from DCS marshaling broken.
Replaced the cable form DCS marshaling into the transmitter.
If you found 23VDC in field and display transmitter OFF. Don't believe it. And please make sure your cable. Connected in properly.
Tuesday, 15 November 2011
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