Automatic Power Off; Using Power Lock; Using Monitor - Radio Shack 22-812 Owner's Manual

shows a negative value. This is
not a malfunction.
E E E E ý < ý < ý < ý <
• appears if you measure val-
ues outside the meter's currently
E E E E ý< ý< ý< ý<
set range. If appears, immedi-
ately disconnect both probes
from the circuit, then touch the
probes together
another range.
• The meter displays
greater than 4000 counts as long
as the range used is not an over-
flow range. (A count is the small-
est unit of measure that the
meter can measure). For exam-
ple, if you store –3.500 volts as a
reference, then measure +3.500
volts, the meter displays 7.000
volts.
E E E E ý < ý < ý < ý <
• You can not set
ence value.
To reset a relative measurement,
€ again or set the function
press
REL
selector to another setting.

AUTOMATIC POWER OFF

Your meter conserves power by auto-
matically turning off about 30 minutes
after the last time you changed a set-
ting (even if you are making measure-
ments).
Note: The meter does not automati-
cally turn off while
RS232
the display (see "Configuring/Using
the Meter and Software" on Page 30)
or if you turn off automatic power off
(see "Using Power Lock").
18
To turn the meter back on after it au-
tomatically turns off, press any but-
ton.

Using Power Lock

To set the meter so it does not turn off
automatically, set the function selec-
or choose
tor to
OFF
and
HOLD
then turn on the meter.
values
until you release
The meter sets itself to its normal test
mode and does not automatically turn
itself off.
Note: The meter automatically sets it-
self to its power lock mode while you
use it to monitor (see "Using Monitor"
on Page 18).
To reset the meter so it automatically
as a refer-
turns itself off, turn off the meter then
turn it back on. The meter automati-
cally turns itself off after about 30
minutes.

USING MONITOR

You can use the meter to monitor
maximum and minimum readings in a
circuit, saving both readings for you to
check.
As the meter monitors, it displays the
minimum or maximum value it mea-
sured and stores those values. If the
meter measures a value higher than
appears on
the stored maximum value or lower
than the stored minimum value, it up-
dates the value it stored with the new
value.
Using the Meter
to turn it off. Hold down
at the same time,
SELECT
FBeY FBeY FBeY FBeY
appears
and
HOLD SELECT
.