Emerson Exchange 365

electromagnetic flow transmitter error

Hi

I configure new electromagnetic flow transmitter (transmitter 8732C and flow tube 8705) and when enable “ Empty Pipe” feature , received empty pipe message in display and also “electrodes circuit open “ in hart communicator ,is  message normal? I work on it in work shop and transmitter is empty, and also when using self-test this message appear.

Thanks

Mohsen

• electromagnetic flow transmitter error

Jim Cahill

• 23 Aug 2014 6:37 AM
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2 Replies

• Mike Schaefer

  

  • 25 Aug 2014 5:58 PM

  Hi Mohsen,

  That is a normal response from the transmitter if the sensor/pipe is empty. The empty pipe detection function is supposed to detect an empty pipe (which would also be an electrode circuit open) condition, report that status message, and force the flow reading to zero.

  The conductive process fluid completes the electrode circuit (the part of a magmeter that picks up the induced voltage). Without a sensor/pipe full of a conductive process fluid, the circuit is open and deemed empty if the empty pipe detection is active.

  The status message should clear once the sensor/pipe is full of a conductive process fluid.

  Additionally, the 8732C is an obsolete transmitter. It has been replaced by the 8732E. The C level revision has been obsolete for over 5 years.

  Best Regards,

  Mike

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• Jim Cahill

  

  • 26 Aug 2014 5:12 AM

  In reply to Mike Schaefer:

  Thanks Mike

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