14
To avoid having the backlight drain the meter’s
batteries, the backlight (and work light, if activated)
automatically extinguishes in 20 seconds.
MEASURING AC OR DC CURRENT
••
Warning
••
Before making current measurements, make certain
that all test leads are disconnected from the meter
terminals.
(1) Set the rotary function switch to the
(AC
current) or
(DC current) position to match the type
of current you wish to measure. The corresponding
or
symbol will appear on the left side of the
LCD. Before measuring DC current, press the
ZERO/REL
button to reset the DC current
measurement baseline to
0A
.
(2) Squeezing the clamp jaw release to open the jaw,
place it around the conductor whose current you wish
to measure. Be sure to enclose only one conductor
(see figure below). Enclosing both conductors of a pair
will produce a reading of 0.
Notes:
Clamp the jaw around one
conductor only.
Close the jaw completely.
Center the wire in the jaw
for highest accuracy.
When measuring DC currents,
observe the “+” polarity mark
on the right jaw to avoid
negative readings.
(3) Read the measured value(s) from the display.
During measurements of AC current, the primary
readout in the center of the LCD shows the measured
current value, while the secondary readout in the
upper right corner shows the frequency of the current.
AUTO