10
OPERATING INSTRUCTIONS
AC/DC CURRENT (LESS THAN 2000A)
AC Current is measured by pressing the
clamp trigger
11
to open the clamp
3
and placing it around a current-carrying wire.
When measuring, care should be taken to
ensure that the clamp
3
is completely
closed with trigger
11
fully released, and
that the wire passes perpendicularly through
the center of the clamp
3
in line with the
arrow markings
12
.
To measure current:
1. Rotate the Function Selector switch
2
to
the
Current
A
setting
.
2. The meter defaults to AC measurement.
To
measure DC, press the "SEL/DC ZERO"
button
9
to toggle between AC and DC
modes. The AC or DC icon on the LCD
indicates which mode is selected. Note
"AC" or "DC" on the display.
3. Place the clamp
3
around the wire. When measuring DC current,
align the polarity markings
16
on the clamp with the polarity of
the wire to avoid negative readings. The current measurement will
be shown in the display.
The meter will auto-range to display the
measurement in the most appropriate range.
To measure inrush current:
1. Rotate the Function Selector switch
2
to the Current
A
setting.
Place the clamp
3
around the wire and press "INRUSH"
10
. The
Display
1
will show "----". Initiate the Inrush event and the inrush
current will be captured and presented in the display. A second press of
"INRUSH"
10
will reset the Inrush measurement, "----" will be presented
on the display and the meter will wait for the next Inrush event.
NOTE: The Inrush measurement period is 100 milliseconds, with a 20
millisecond sampling rate.
2. P
ress and hold
"INRUSH"
10
for more than one second to return to
normal measuring mode.
Disconnect test leads when measuring with the clamp.
NOTE: If non-zero values are displayed prior to measuring in DC
current mode, an offset correction may be required to improve
accuracy. With meter in DC current mode, press and hold the
"SEL/DC ZERO" button
9
for more than one second to initiate the
DC current ZERO function. Subsequent DC current measurements
automatically subtract the measurement that was initially present as
an offset correction.
ENGLISH
WIRE
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