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Low Battery Without AC Power Connected
If the battery is low and the AC power adapter is not connected, a message
appears when attempting to power on.
Connect the AC adapter to continue the test or perform any other operation.
Replace the 9V battery as soon as possible. See
Storage Under Power
The radon monitor must always be stored with a 9V battery installed or connected
to AC power. This additional power is required to prevent discharge of the 3V
lithium battery located inside the unit. The 3V battery will discharge in 15 minutes,
and if the internal battery is discharged, it must be replaced at the factory. See
Contacting Sun Nuclear Support
Press…
Display Shows…
Comment
Low Battery!
Battery is checked. Does not have enough power
for a 60-hour test.
–
No Extern. Power
Indicates AC power should be connected to con-
tinue the test in progress. At the conclusion of the
test, replace the battery.
–
Shutting down...
The display shuts down to save power.
WARNING:
For long term storage, always connect to AC power or
install a fresh 9V battery to prevent the internal 3V battery (required
for operation) from discharging. The 3V battery is not user-service-
able and if discharged, the device must be returned to Sun Nuclear
for replacement.
