Function description
The OY1410 counts the pulses output by the IWM-PL3 or IWM-PL4. The corresponding
water volume depends on the set “Pulse ratio X”-value in the IWM-PL3 or IWM-PL4, which
in turn depends on the type of water meter used. To get the OY1410 to report water volume in
liter it is required to set the IWM Pulse Ratio to the same value as Pulse Ratio X in the IWM-
PL3 or IWM-PL4.
The OY1410 also supervises the fraud signal from the IWM-PL3 or IWM-PL4. If a fraud
condition is detect based on the output from the IWM unit the fraud detection indicator in the
LoRa uplink message will be set in coming reports until the fraud detection indicator has been
explicitly cleared using a LoRa downlink request.
The OY1410 also detects if the batteries are replaced, since it will not be able to count the
pulses from the IWM-PL3 or IWM-PL4 while the batteries are not inserted. When the
batteries have been replaced the reset detection indicator in the LoRa uplink message will be
set in the coming reports until the reset detection indicator has been explicitly cleared using a
LoRa downlink request. Note: The reset signal is also set during the first startup.
It is possible to set the counter value in the OY1410 to a preset value using a LoRa downlink
request.
