21
Note:
- DCV Measurement is autoranging, the Meter has an input impedance of approx. 10MΩ. This
loading effect can cause measurement errors in high impedance circuits. If the circuit impedance is
less than or equal to 10kΩ, the error is negligible (0.1% or less).
- When DC voltage measurement has been completed, disconnect the connection between the
testing leads and the circuit under test.
B. AC Voltage Measurement (see figure 3)
Warning!
To avoid harms to you or damages to the Meter from electric shock, please
do not attempt to measure voltages higher than 500V although readings may
be obtained.
The AC voltage ranges are : 4.000V, 40.00V, 400.0V and 500V
1. Insert the red test lead into the VΩmA terminal and the black test lead into the COM terminal.
2. Set the rotary switch to V
range.
3. Connect the test leads across with the object being measured.
The measured value shows on the display.
Note:
- DCV Measurement is autoranging, the Meter has an input impedance of approx. 10MΩ. This
loading effect can cause measurement errors in high impedance circuits. If the circuit impedance is
less than or equal to 10kΩ, the error is negligible (0.1% or less).
- When DC voltage measurement has been completed, disconnect the connection between the
testing leads and the circuit under test.
C. DC Current Measurement (see figure 4)
Warning!
Never attempt an in-circuit current measurement
where the voltage between terminals and ground
is greater than 60V . If the fuse burns out during
measurement, the Meter may be damaged or the
operator himself may be hurt. Use proper terminals,
function, and range for the measurement. When
the testing leads are connected to the current
terminals, do not parallel them across any circuit.
To measure current, do the following:
1. Turn off power to the circuit. Discharge all highvoltage capacitors.
2. Insert the red test lead into the VΩmA or 10A terminal and the black test lead into the COM
terminal.
3. Set the rotary switch to an appropriate measurement position in A
range. DC measurement
is default or press SELECT button to select DC measurement mode.
4. Break the current path to be tested. Connect the red test lead to the more positive side of the
break and the black test lead to the more negative side of the break.
5. Turn on power to the circuit. The measured value shows on the display.
