Specifications

MODEL 8364- E VISIBILITY SENSOR AWOS 3000 INSTALLATION AND CHECKOUT
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11.8.2 Battery Backup Checkout
Check the Battery Backup operation.
1. Turn the main power switch off.
The power switch is located on
the AC Interface board, a smaller
printed circuit board mounted in
the lower right corner of the
control board enclosure below
the control board.
2. Verify that the “WATCHDOG”
LED continues to blink
approximately once per second.
3. Turn the main power switch
back on.
Figure 41
. Visibility Sensor AC Interface Board