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7.2.5
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. Remove power from the circuit, disconnect the test
probes, and rotate the RANGE switch to the next lower position.
Reconnect the test probes, reapply power, and read the voltage on the
LCD display. If the RANGE switch is already on the lowest position
(i.e. 200V AC), no greater measurement resolution can be obtained.
7.3
DC 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! If
the input current is between 5A and 10A, limit the measuring time to 10
seconds, and allow 15 minutes for the meter to cool down between
measurements. Do not attempt to measure current in a circuit whose
open circuit voltage exceeds 500V.
7.3.1
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
V/
Ω
/mA / F
jack.
7.3.2
If the red test lead is inserted into the
10A
jack, set the RANGE
switch to the
10 A
position. With power removed from the
circuit to be tested, connect the test leads of the meter in series with
the circuit. Apply power to the circuit. The LCD will display the DC
current.
7.3.3
If the red test lead is inserted into the
V/
Ω
/mA / F
jack, set the
RANGE switch to the 200m
A
position. With power removed
from the circuit to be tested, connect the test leads of the meter in
series with the circuit. Apply power to the circuit. The LCD will
display the DC current.
7.3.4
If the display indicates overrange, i.e. "1- - -", remove power from the
circuit, disconnect the test probes, and rotate the RANGE switch to
the next higher position. Reconnect the test probes, reapply power,
and read the current on the LCD display. If the meter is already set to
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