Leaks Detection - ADEUNIS ARF8230AA Guide Utilisateur

LoRaWAN 863-870 Pulse - Guide utilisateur / User guide version V2.0.0
2.2.6

Leaks detection

The product allows leak detection on each count input as shown in the following diagram:
Flow calcu-
No
lation peri-
od reached
?
Yes
Calculation of
flow
Value <
No
(leakage
threshold)
Yes
Incrementing
the zero-flow pe-
riod counter
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 leak detection is performed by analyzing a number of occurrences (configurable by register: S330
and S331) where the calculated flow rate is less than a leakage threshold (configurable by register:
S328 and S329).
The associated leak alarm is stored and transmitted with the next daily frame.
The alarm is automatically deactivated after the daily frame is sent.
The settings associated with this mode of operation are:
• Enabling and Configuring inputs (register 320)
• History configuration (register S321)
• Anti-bounce timer period (register S322)
• Flow calculation period (register S325)
• Leak thresholds (registers S328 and S329)
• Null flow period counters (S330 and S331)
A complete list of the registers can be found in paragraph 3.4.
Product in
standby
No
Pulse de-
tected and
validated
Yes
Counting
pulse
Period
No
of 24h
reached
?
Yes
Value
of the counter
No
of zero flow peri-
od <(counter
leakage)
Yes
Leak alarm
activated in
frame 0x30
Send frame
0x30
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