RMG ERZ2000-NG, Operating Manual

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6 Flow meters
Manual ERZ 2000-NG · EN07 · 2019, May 13th
190
simulated for test purposes.
The frequency is adjusted with coordinate
GB55
Freq.turbinesim.
USC, HF1-ch. Vm is delivered via DZU protocol,
HF input is used for comparison
USC, HF2-ch. 1/1 Vm is delivered via DZU protocol,
HF inputs are used for comparison
USC, LF1-ch. Vm is delivered via DZU protocol,
LF input is used for comparison
The following must be considered for the reporting of alarms or warnings: If ENCO is
at the beginning with a 2-channel operating mode, with HF measuring inputs at the
end, a warning with separate message number is issued instead of an alarm in case
of a pulse failure or pulse comparison error.
Logic of the synchronization monitoring
The synchronization monitoring is focused on the software comparison between two
possible inputs for volume formation. The comparison takes place automatically with
more than 1 input. The synchronization monitoring checks all combinations with more
than one input and is not limited tot he comparison between Vo and LF input. The
following table provides an overview of the functions in error-free operation. In case
of an error, the ERZ2000-NG uses the undisturbed signal or, with 3 input signals, it
automatically switches over to the appropriate signal.
Operating
mode
Errors
Vc
DZU
error
HW
Comp.
SW
Comparison
QB
Bill.
Vm
Bill.
Kv
Use
Vo alarm Off Off Off Metering mode Vo Vo
Vo, LF1-ch. alarm Off Off Vo -- LF1-ch. Metering mode Vo Vo
LF1-ch., Vo warning Off Off LF1-ch. -- Vo Metering mode LF meas. ch.
Vo, HF-1ch. alarm Off Off Vo -- HF-1ch. HF Signal Vo Vo
HF1-ch., Vo warning Off Off HF1-ch. – Vo HF Signal HF Signal meas. ch.
Vo, HF2-ch. 1/1 alarm Off 1:1 Vo – HF meas. HF meas. signal Vo Vo
HF2-ch. 1/1, Vo warning Off 1:1 HF meas. – Vo HF meas. signal HF meas. signal meas. ch.
Vo, HF2-ch. X/Y alarm Off X:Y Vo – HF meas. HF meas. signal Vo Vo
HF2-ch. X/Y, Vo warning Off X:Y HFmeas. – Vo HF meas. signal HF meas. signal meas. ch.
HF2-ch. 1/1 Off Off 1:1 Meas.-- comp. HF meas. signal HF meas. signal meas. ch.
HF2-ch. X/Y Off Off X:Y Meas.-- comp. HF meas. signal HF meas. signal meas. ch.
HF LF Off Off Off HF -- LF HF Signal HF meas. signal meas. ch.
HF1-ch. Off Off Off Off HF Signal HF Signal meas. ch.
LF1-ch. Off Off Off Off Metering mode LF Signal meas. ch.
DZU Off alarm Off Off DZU DZU DZU
IGM Off Off Off Off IGM IGM IGM