B meters IWM-TX5, User Manual

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ALARMS
The IWM-TX5 module has several built-in alarm functions:
Alarm Description Activation Troubleshooting Reset Radio telegram
Reverse flow alarm Reverse flow detected, a flow in the
opposite direction was detected
The error is triggered after a continuous
reverse flow greater than the set value.
Settable values (liters): 20/50/200
Check the water supply and
meter installation
Reset the alarm via NFC The payload contains the alarm status and
the total of reverse flow. After the reset, the
status is updated
Qmax overflow alarm Water meters were used in
improper conditions, the flow rate
exceeded the operating conditions.
The manufacturer’s warranty is
invalidated
The error is triggered after the meter
operates at a flow rate above Q4 for 10
consecutive minutes.
Settable values (m3 / h): 1.25 / 1.5 / 2/3 /
3.125 / 5
Check the water supply Reset the alarm via NFC The payload contains the alarm status. After
the reset, the status is updated
NFC fraud alarm The presence of an NFC field has
been detected
The presence of an NFC field is checked at
regular intervals to prevent fraud
Check for extraneous NFC fields Reset the alarm via NFC The payload contains the alarm status and
the alarm activation date. After the reset, the
status is updated
Low battery alarm A battery voltage of less than 2.65V
has been detected
It is activated when the battery voltage
drops below the 2.65V threshold
Permanent error Permanent error The payload contains the alarm status and
activation date
Leakage alarm Continuous flow greater than 3l/h is
detected for a certain period of time
The counter detects a flow continuous of 3
l/h for X hours. (Default: 12)
Settable values (hours): 12/24/48/72
Check the absence of leaks in
the water network / system
It automatically restores
when the initial conditions are
restored (flow <3 l/ h)
The payload contains the alarm status and
the alarm activation date. After the reset, the
status is updated
Removal alarm Removal of the module from the
counter is detected
A periodic check of the state of the plastic
button is carried out
Check the correct mounting of
the module on the meter
Reset the alarm via NFC The payload contains the alarm status and
the alarm activation date. After the reset, the
status is updated
Magnetic fraud alarm The presence of a magnetic field has
been detected
The presence of a magnetic field is checked
at regular intervals to prevent fraud
Check for the presence of a
external magnetic field
Reset the alarm via NFC The payload contains the alarm status and
the alarm activation date. After the reset, the
status is updated
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Manuale utente v1.2 IWM-TX5