PX100D_Manual_en-1.17.2i10
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7.4.5.
Sleep when the battery voltage less than
If you check an option “Sleep when the battery voltage less than” battery voltage
threshold field becomes available. The threshold is used when the transmitter goes
into Sleep mode. Due to the characteristics of the battery Sleep mode ensures
reliable operation of the device when the battery is the only source of power at the
time. If the option “Sleep when the battery voltage less than” will remain unchecked
transmitter will work as long as it allows the battery. This may adversely affect the
capacity of the battery for a further period of use as well as cause a generation of
false alarms.
Transition to Sleep mode occurs when the battery voltage falls below the defined
threshold (taken into account the 3 consecutive measurements performed in 10-
second interval). The following steps are then performed:
1.
Too low voltage - sleep
event is generated
2.
Transmitter for up to 30 seconds is trying to send
Too low voltage - sleep
event to the software
3.
Device switches to Sleep mode, i.e. the modem goes to off, inputs are not
being monitored, outputs are turned off, an external telephone line is
attached
Sleep mode is indicated by alternating lighting and off LEDs: OK and ERR.
Exit from Sleep mode occurs when one of the following situations occurs:
Main power supply is connected and the battery voltage exceeded a value of
“threshold of sleep” + 0.6 V
Overall disconnect power and re-connect the battery and / or AC power
For transmitter inputs are reported only changes in relation to the state before
sleep.