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4.3.4 Consumption quantity monitoring [ImP]
The instrument has an internal quantity counter (= totaliser). It
continuously totals up the consumption quantity and provides this process
value on the display.
Pulse signals or a switching signal (preset counter) can be used to monitor the
consumption quantity.
4.3.4.3 Consumption quantity monitoring via pulse signals
4.3.4.4 Consumption quantity monitoring via preset counter
4.3.4.1 Meter reading
The current status of the quantity counter can be displayed (
In addition, the value before the last reset is stored. This value and the
time since the last reset can also be displayed (
The counter stores the totalled flow quantity every 10 minutes.
After a power failure, this value is available as the current meter
reading. If a time-controlled reset is set, the elapsed time of the set
reset interval is also stored. So the possible loss of data can be a
Note
maximum of 10 minutes.
4.3.4.2 Counter reset
The quantity counter can be reset in various ways:
-
Manual counter reset (
-
Time-controlled counter reset (
-
Counter reset using an external signal (
If the quantity counter is not reset by applying one of the above
procedures, an automatic reset takes place when the maximum flow
quantity that can be displayed is exceeded (overflow).
OUT1 and OUT2 cannot be used simultaneously for the consumption
quantity monitoring.
The accuracy of the consumption quantity measurement depends on
Note
the accuracy of the flow measurement.
9.3.3)
9.3.4)
9.3.6)
7.1).
7.1).
19
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