FEP630, FEH630 ELECTROMAGNETIC FLOWMETER | OI/FEP630/FEH630-EN REV. D 121
Monitoring the grounding
The function checks for noise in the measuring signal and the
electrical grounding of the device. While the check is in progress,
no flow measurement can take place.
The noise / grounding check is started manually and delivers a
‘successful / failed’ result.
The measurements (Power Spectrum, Amplitude 1 to 4 and
Frequency 1 to 4) will help if the noise / grounding check fails.
Requirements for use:
• The sensor must be filled completely with measuring
medium.
• There is no flow through the sensor (close all valves, shut-
off devices etc.)
• The sensor must be grounded (see Sensor grounding on
page 29).
• There may not be any deposits on the measuring
electrodes.
Menu / parameter Description
Diagnostics / ...Diagnosis Control / ...Noise Check
Start Noise Check Start of test
Result Noise Check Test result
Power Spectrum Current power spectrum.
Amplitude 1 Value ... 4 Display of the four strongest amplitudes of the
frequency spectrum in μV with the associated
frequency.
Frequency 1 ... 4
Verification
Fingerprint database
The sensor and transmitter fingerprint stored in the
SensorMemory allows you to compare the state of the device at
the time of manufacture at the factory with the current state of
the device at the customer site.
The check is started manually and returns a ‘successful / failed’
result.
If the verification is unsuccessful, troubleshooting information is
shown on the display (parameter ‘Rslt FP Verification‘).
A software tool (ABB Ability SRV500) is available for
documentation and trend analysis.
Setup
Menu / parameter Description
Diagnostics / ...Diagnosis Control / ...Fingerprints
Tx Factory CMR, 1m/s,
10m/s
Display of transmitter fingerprint (factory
fingerprint)
Se Factory Coil Ind. Display coil impedance fingerprint
Se Factory Imp. E1 Display electrode impedance fingerprint E1-GND,
E2-GND
Se Factory Imp.E2
Strt FP Verification Start of test
Rslt FP Verification Test result
Tx Customer CMR, 1m/s,
10m/s
Display of transmitter fingerprint (customer
fingerprint)
Se Customer Coil Ind Display coil impedance fingerprint
Se Customer Imp. E1 Display electrode impedance fingerprint E1-GND,
E2-GND
Se Customer Imp. E2
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