Use the mains adapter as often as you can. Then your battery is charged and fresh when you need it.
Mains adapter
The internal battery package in the Nor150 is intelligent. It will tell you the status of the battery.
When the instrument is driven by a Solar Cell system it is imporant that the internal
battery in the instrument has got enough power to be able to boot the instrument
properly. It is therfor recommended that the instrument powers down at a higher
level than normal. Select 'Solar Cell' if powered by a solar cell system, otherwise
this setting should be 'Normal'. See the
Solar
cell menu for operation.
In order to save power the GPS should be turned off if not required.
Several timeout functions may be set to save energy (and reduce temperature) in the Nor150.
The Backlight and Display picture
generation takes some power and should be turned off while not used.
Tap on the display to get the picture back on the screen after these timeouts.
Different settings are available for Battery and External Power (Mains) operation.
If the instrument is left unattended and unoperated, it will switch itself off after the predefined time. However,
this does not happen if the instrument is measuring (including being paused during a measurement). The automatic
switch off feature may, however, be disabled if required.
These time settings are relatve to each other. I.e. if you set one minute on all three settings, the instrument will
power itself off after three minutes.