Trouble shooting
8
Question
Answer
Back light not on in battery supply
Turn on back light switch in menu
When I press buttons, can’t wake
up the display
Check whether the batteries run out
The appliance is plugged on Pm90,
but there’s no power output
Check on the display on ON/OFF icon,
see whether the switch is turned off.
Why the beep is on
If you set either 3 of the count down functions,
the beeper will be on for a while once program
finish.
You appliance load trigger the target.
How long the battery last?
1) If Pm90 is plugged on socket, there’s 0
current draw from battery.
2) If Pm90 off the outlet, and back light is config to be
off, will last 120 days ( )with no operation on buttons
*
*
Battery life is based on how often you operate the device, the 120 days is a theory number
measure and calculated. the result may vary in using.
