5
OPERATION
DC or AC Voltage Measurement
Warning:
To avoid personal injury, or damage to the meter from electric shock, please
do not attempt to measure voltages higher than 1000V although readings may be
obtained.
To measure DC/AC voltage, connect the meter as follows:
•
Insert the red test lead into the V terminal and the black test lead into the COM
terminal.
•
Set the rotary switch to V to select DC measurement mode.
•
Set the rotary switch to V~ to select AC measurement mode.
•
Connect the test leads across with the object being measured. The measured
value shows on the display.
•
When DC/AC voltage measurement has been completed, disconnect the
connection between the test leads and the circuit under test.
Note:
In each range, the meter has an input impedance of 10M
Ω
. This loading effect
can cause measurement errors in high impedance circuits. If the circuit impedance is
less than or equal to 10k
Ω, the error is negligible (0.1% or less).
DC or AC Current Measurement
Warning:
Before connecting the meter in series with the circuit under test, be sure
power the circuit is off. If the fuse burns out during measurement, the meter may be
damaged and there is risk of personal injury to the operator.
Use correct terminals, function, and range for the measurement. When the test leads
are connected to the current terminals, do not connect in parallel across any circuit.
To measure current, do the following:
•
Insert the red test lead into the mA μA terminal and the black test lead into the
COM terminal.
•
Set the rotary switch to an appropriate measurement position in μA
, mA or
A to select AC or DC measurement mode.
•
Connect the test leads in series with the object being measured. The measured
value shows on the display.
Note:
If the value of current to be measured is unknown, use the maximum
measurement position, and reduce the range step by step until a satisfactory reading is
obtained.
•
When current measurement is complete, disconnect the test leads from the circuit
under test.
