13
The
icon on the left side of the LCD indicates that
the APO function is enabled.
Once the APO function has activated and powered the
meter off, you cannot reactivate the meter simply by
turning the rotary function switch to a different
position. You must either rotate the switch to the
OFF
position and then to another position, or press a
button—any button.
To disable the
APO
function, you must power on the
meter in a special way—by pressing and holding the
ZERO/REL
button while turning the rotary function
switch to a position other than
OFF
. If the meter is
powered on in this way, the
icon will not appear.
If the meter is left unattended, it will remain powered
on until its batteries discharge (typically, several days
later).
Using the Analog Bar Graph
The bar graph at the bottom of the LCD (see below)
provides an analog representation of every
measurement shown in digital form on the primary
readout above it.
The key feature of the bar graph is its fast response
time. It can reflect a change in a measured value
10 times more quickly than the digital readout can.
Accordingly, it is useful for tracking parameters that
change very rapidly (a voltage or current, for
example).
Turning On the Backlight
Pressing and holding the
button for at least
3 seconds turns on the LCD’s bright white backlight,
making measurements much easier to read in dark
spaces. If the rotary function switch is in the
or
position, pressing and holding the
button also
turns on the bright white LED work light at the base of
the clamp jaw (Fig. 1, Callout 3).
