5
The following alarms are managed: exces-
sive consumption (configurable parame-
ters), backflow (limit set and configurable),
leak (configurable parameters), device ge-
neric alarm, battery almost flat (below 10%),
electronic fraud and mechanical fraud (re-
moval).
The factory set-up can nonetheless be mod-
ified:
- through the NFC port and relevant app in-
stalled on a device with Android operating
system;
=- through the NFC port and relevant app
via a suitably formatted configuration file
installed on the module.
- OTA if
Arrow
WAN
MVM is already active and
connected to the fixed network.
The main technical specifications of the
Arrow
WAN
MVM design are:
–
internal sensor that identifies rotation of
the pointer on the meter using the prin-
ciple of induction (immune to magnetic
interference), calculates the volume (in
both directions), manages alarms and
stores data in a non-volatile memory;
–
wireless radio communication inter-
face:
-
Arrow
WAN
MVM 169 wM-Bus N2 (a, b,
c, d, e, f) conforming AFNOR E17Z V2
which allows for remote reading in both
scenarios,
mobile (walk-by) and fixed
(AMR);
-
Arrow
WAN
MVM 868 LoRa t 868 MHz
which allows for remote reading in
fixed mode only (AMR);
–
lithium battery which guarantees a
power supply for up to 15 years. For
Arrow
WAN
MVM 169 MHz in fixed mode
and default parameter configuration.
1.4 Usage limits
The product may be used exclusively with
compatible meters and in line with the cor-
responding usage limits (see paragraph “
