Auto Power Off; Auto Backlight Off; Measurements; Manual And Auto Range Selection - Fluke 15B+ User Manual

Auto Power Off

The Product automatically powers off after 20 minutes of
inactivity.
To restart the Product, turn the rotary switch back to the
OFF position and then to a necessary position.
To disable the Auto Power Off function, hold down 
when turning on the Product, until PoFF shows on the
display.
When you disable the Auto Power Off function,
LoFF also shows on the display. The Auto
Backlight Off function is also disabled.

Auto Backlight Off

The backlight automatically turns off after 2 minutes of
inactivity.
To disable the Auto Backlight Off function, hold down
when turning on the Product, until LoFF shows on the
display.
Note

Measurements

 Warning
To prevent possible electrical shock, fire, or
personal injury, disconnect power and
discharge all high-voltage capacitors before
you measure resistance, continuity,
capacitance, or a diode junction.

Manual and Auto Range Selection

The Product has both manual and auto range options. In
the auto range mode, the Product selects the best range
for the input detected. This allows you to switch test points
without having to reset the range. You can override auto
ranging by selecting the range manually.
By default, the Product uses the auto range mode in
measurement functions that have more than one range
and shows Auto Range on the display.
To enter the manual range mode, push .
Each push of  increments the range. When
the highest range is reached, the Meter wraps to
the lowest range.
To exit the manual range mode, push and hold  for two
seconds.
Digital Multimeters
Auto Power Off
Note
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