Fukuda Denshi DSL-8001, Operation Manual

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Solution : Set [ON] for “VENT Alarm” (“Initial Setup” > “VENT Setup”).
Battery
The battery LED flashes in orange.
Cause 1 : The battery life has expired.
Solution : The battery is a consumable product. Replace it every year.
Cause 2 : The ambient temperature is too high or too low.
Solution : Charge the battery in an ambient temperature between 10 to 30
°
C.
Cause 3 : The battery failure can be considered.
Solution : Replace the battery.
Cause 4 : If the battery is not installed during AC power supply, the LED may
flash in orange.
Solution : Install the battery.
When switched to battery operation, nothing is displayed on the screen,
and a buzzer tone generates intermittently.
Cause 1 : The battery life has expired.
Solution : The battery is a consumable product. Replace it every year.
Cause 2 : The ambient temperature is too high or too low.
Solution : Charge the battery in an ambient temperature between 10 to 30
°
C.
Cause 3 : The battery failure can be considered.
Solution : Replace the battery.
The battery cannot be charged. Battery discharges quickly after charging
and does not operate.
Cause 1 : The battery life has expired.
Solution : The battery is a consumable product. Replace it every year.
Cause 2 : The ambient temperature is too high or too low.
Solution : Charge the battery in an ambient temperature between 10 to 30ºC.
Cause 3 : The AC power is not ON.
Solution : Connect the power cable.
The operation time is short although the battery is charged.
Cause 1 : Use in a location that has a lower ambient temperature.
Solution : If the battery is used in a particularly cold location, the operation
time becomes shorter.
Cause 2 : The battery life has expired.
Solution : The battery is a consumable product. Replace it every year.