Instruction manual

13
Preparations
Power on/off
To turn the unit on
Hold down the POWER key until the power-on screen appears (at least 1
second). When the screen is shown, release the POWER key. After the unit
has been started, the measurement screen appears.
During start up, the indicator LED  ashes red
blue red ...
POWER key
Indicator LED
To turn the unit off
Hold down the POWER key until the unit is turned off (several seconds).
When the power-off screen appears, release the POWER key.
Important
Remove the batteries from the unit if it is to be
stored for a long time with the POWER key set
to OFF to prevent possible damage caused by
battery leakage, and disconnect the AC adapter
or battery pack.
Note
After turning the unit off, wait at least 10 seconds
before turning it on again.
If the key lock has been activated, pressing the
POWER key has no effect. Press the
key and
key simultaneously to cancel the key lock condition,
and then press the POWER key.