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WMBUS Pulse - Guide utilisateur / User guide version V2.2.0
2.2.3 Flow threshold alarm transmission
The product allows the detection of the exceeding of a flow threshold for each counting entry according to the following scheme:
The flow rate corresponds to the number of pulses of the flow calculation period divided by the same period. It is expressed in pulses / hour.
The alarm message (frame 0x47) is transmitted once, there is no new transmission if the flow rate returns above the threshold as long as the
alarm remains active. The alarm is automatically deactivated after the daily frame is sent.
Product in standby
Flow calcu-
No
lation period
reached ?
Yes
Calculation of flow
Valeur<(débit
min 24h)
Yes
Saving the new min
flow on 24h
Send frame 0x47
Detected
and valida-
ted pulse
?
Yes
Counting
of the impulse
Value
No
>(max flow 24h)
Yes
Saving the new max
flow on 24h
Value >
No
(alarm
threshold)
Yes
No
No
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