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7.5.4
If the display indicates overrange, i.e. “1- - -”, disconnect the test probes
from the circuit and reconnect the red test lead to the
10A
jack. Set the
RANGE switch to the
10A
position, and reconnect the test leads to
the circuit. Read the value from the LCD. If the input current exceeds the
measurement capability of the meter, as evidenced by a display of over
10 amps, or an overrange display, it should not be measured.
7.5.5
If the displayed value is less than “200” (decimal point not shown), a more
accurate reading may be obtained by setting the RANGE switch to a lower
range. Disconnect the probes from the circuit and rotate the RANGE
switch to the next lower position. Reconnect the test probes to the circuit
and observe the reading on the LCD display. If the RANGE switch is
already on the lowest position (i.e. 2mA), no greater measurement
resolution can be obtained.
7.6 AC Current Measurement:
WARNING!!!
If the magnitude of the current to be measured is unknown, always start
by setting the meter to the highest range, and then to lower ranges,
until a satisfactory reading is obtained.
Do not rotate the RANGE switch with the input applied to the meter.
If the input current is higher than 10A, do not attempt to measure!
Use caution when measuring current in a circuit with voltages
above 30 VAC. Do not use meter to measure current in
circuits whose voltage exceeds 250V AC/DC.
7.6.1
Connect the black test lead to the
COM
jack. Connect the red test lead to
the
10A
jack unless it is known that the input current is less than 200mA.
If the current is less than 200mA, connect the red test lead to the
mA
jack.
7.6.2
If the red test lead is inserted into the
10A
jack, set the RANGE switch to
the
10A
~
position. Read the value of the current on the LCD display.
7.6.3
If the red test lead is inserted into the
mA
jack, set the RANGE switch
to the
200mA
~
position. Read the value of the current on the LCD.
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