Troubleshooting
10.3 Test Facilities Graph Screen
FUE1010 IP65 NEMA 4X
156 Operating Instructions, 12/2014, A5E03086491-AC
To access the Digital Damping Control using the Test Facilities Graph Screen, proceed as
follows:
Note
To use the Test Facilities Graph Screen you must have a working site.
To INCREASE the Digital Damping:
Setting the Digital Damping Factor to a value HIGHER than the default value of 4 may be
necessary in cases where the signal-to-noise ratio (SN) is found to be unacceptably low
(<15:1), but only if the noise is determined to be asynchronous (i.e., not associated with the
transmit or flow meter timing circuitry) as shown in the signal example above, where the
baseline noise has a higher frequency than the true liquid signal.
The following application conditions may require a higher Digital Damping Factor:
● Close proximity to pressure control valves which may generate in-band acoustic noise
● High un-dissolved gas solids content in liquid.
● High electronic noise from variable frequency drives or other external equipment.
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