Emerson Process Management 8732 manual Electrode Circuit Resistance

Reference Manual

00809-0100-4663, Rev BA January 2010

Rosemount 8732

Electrode Circuit Resistance

The Electrode Circuit Resistance is a measurement of the electrode circuit health. This value is used as a baseline to determine if the electrode circuit is still operating correctly when the 8714i Meter Verification diagnostic is initiated.

375

AMS Tab

Transducer Block, Diagnostics, Advanced Diagnostics, 8714i Meter Verification, Sensor Signature, Signature Values, Electrode Resistance

Config/Setup, 8714i

8714i Meter Verification Measurements

The 8714i Meter Verification test will make measurements of the coil resistance, coil signature, and electrode resistance and compare these values to the values taken during the sensor signature process to determine the sensor calibration deviation, the coil circuit health, and the electrode circuit health. In addition, the measurements taken by this test can provide additional information when troubleshooting the meter.

Coil Circuit Resistance

The Coil Circuit Resistance is a measurement of the coil circuit health. This value is compared to the coil circuit resistance baseline measurement taken during the sensor signature process to determine coil circuit health.

375

AMS Tab

Transducer Block, Diagnostics, Advanced Diagnostics, 8714i Meter Verification,

Measurements, Coil Resistance

Config/Setup, 8714i

Coil Signature

The Coil Signature is a measurement of the magnetic field strength. This value is compared to the coil signature baseline measurement taken during the sensor signature process to determine sensor calibration deviation.

375

AMS Tab

Transducer Block, Diagnostics, Advanced Diagnostics, 8714i Meter Verification,

Measurements, Coil Signature

Config/Setup, 8714i

Electrode Circuit Resistance

The Electrode Circuit Resistance is a measurement of the electrode circuit health. This value is compared to the electrode circuit resistance baseline measurement taken during the sensor signature process to determine electrode circuit health.

375Transducer Block, Diagnostics, Advanced Diagnostics, 8714i Meter Verification, Measurements, Electrode Resistance

AMS Tab Config/Setup, 8714i

C-15