Aqara JT-BZ-03AQ/A, User Manual

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automatically close the solenoid valve if the terminal has been
connected to the valve.
c. Extinguish all fires and close the main natural gas valve immediately.
d. Open doors and windows for ventilation.
e. Do not use a telephone in the building where the presence of gas is
suspected.
4. False alarm of the detector may be triggered as a result of the
following conditions
3. In case of the natural gas leakage hazard eliminated
a. After pressing the silence/self-test button, the buzzer will be silenced
for 10 minutes, with no sound prompt during this period until the
end of the silence status. During the silence, if you hold down the
silence/self-test button for more than 3 seconds, the alarm sound
prompt function will be restored.
b. In case the natural gas concentration is below the alarm setting
value, the detector will automatically return to the normal working
status.
c. If there is a connected solenoid valve, after confirming that the
security hazard has been eliminated and the gas supply needs to be
restored, you should reset the solenoid valve according to the
operating instructions.