15
7.4.3
Connect the test probes to circuit being measured. The LCD will display
the AC voltage.
7.4.4
If the display indicates overrange, i.e. “1- - -”, disconnect the test probes
from the circuit and rotate the RANGE switch to the next higher position.
Reconnect the test probes to the circuit and observe the reading on the
LCD display. If the RANGE switch is already at the highest position
(i.e. 750 VAC), the input voltage exceeds the measurement capability
of the meter and should not be measured.
7.4.5
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. 2V AC), no greater measurement
resolution can be obtained.
7.5
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!
Use caution when measuring current in a circuit with voltages
above 50 VDC. Do not use meter to measure current in
circuits whose voltage exceeds 250V AC/DC.
7.5.1
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.
7.5.2
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.
7.5.3
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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