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%)
and mechanical fraud (removal).
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
is already active and con-
nected to the fixed network.
The main technical specifications of the
Arrow
WAN
design are:
–
input via four-pole cable of the fol-
lowing signals: pulses (flow meter revo-
lutions), flow direction, anti-fraud, earth.
Thanks to this data, the module calculates
the volume (both directions), manages
alarm situations and memorises the data
in a non-volatile memory;
–
wireless radio communication inter-
face:
-
Arrow
WAN
169 wM-Bus N2 (a, b, c, d, e,
f) conforming AFNOR E17Z V2 which al-
lows for remote reading in both scenar-
ios,
mobile (walk-by) and fixed (AMR);
-
Arrow
WAN
868 LoRa t 868 MHz which al-
lows for remote reading in
fixed mode
only (AMR);
–
lithium battery which guarantees a pow-
er supply for up to 15 years. For
Arrow
WAN
169 MHz in
fixed mode and default pa-
rameter configuration.
1.4 Usage limits
The product may be used exclusively with
compatible sensors and in accordance with
the corresponding usage limits (see the “
Technical specifications” paragraph).
