AirGuard
TM
35
www.bullard.com
Battery and Power Supply Operation
The AirGuard is battery powered. The maximum expected battery operation is 16 hours when operating from a full
charge. The relative charge of the battery is displayed on the main display and this can be queried as to status by
the user on demand. The battery charger has a LED that reports the following, Red LED indicates charging and
Green LED indicated fully charged.
The lead acid battery is expected to last one year or approximately 200 complete charge cycles.
Warning! Charge the battery every 90 days.
The AirGuard can also be operated by using the 12VDC power supply for continuous duty beyond the limit of the
battery supply. The main screen icon will change to a plug symbol indicating the power supply is operating. When
the 12VDC power supply is being used to operate AirGuard it will also charge the battery.
To recharge the battery the connector must be fully inserted and then screwed into the charge port until tight.
AirGuard - Battery Malfunction
If the AirGuard will not power up it is due to a discharged battery. If this occurs, connect the battery charger to the
AirGuard. The charger LED should immediately turn red, indicating charging. If the LED remains green the battery
must be replaced. To replace the battery assembly order part number AGBBAT.
You have the option of operating the AirGuard using just the battery charger. To allow the AirGuard to function in
this mode you must disconnect the battery. Disconnect the charger from the AirGuard charging input. Open the
AirGuard enclosure and disconnect the white AMP connector (2 pin) illustrated on the picture below. Once the
charger is re-connected and you press the power button the AirGuard will power up. The battery charger LED will
light red. When you turn off the AirGuard the battery charger LED will turn off.
Connector
Location
