8
Measuring Current
•
To measure AC or DC current proceed as
follows:
1. Turn off power to the circuit. Discharge all high-
voltage capacitors.
2. Insert the red test lead into the mAµA or A
terminal and black test lead into the COM
terminal.
3. If you are using the A terminal, set the range
selector to A~. If you are using mAµA terminal,
set the range selector to µA~.
4. DC measurement is default, press blue button to
select AC measurement.
5. Open the circuit path to be tested. Touch the red
testing leads to the positive side of the break;
touch the black probe to the negative side of the break. Reversing the leads will
produce a negative reading, but will not damage the meter.
6. Turn on power to the circuit; then read the display. AC measurement displays
the True RMS value. DC measurement displays the effective value of sine wave
(mean value response).
7. Turn off power to the circuit and discharge all high- voltage capacitors. Remove
the meter and restore the circuit to normal operation.
8. When the ACA function is selected, you can press the Yellow Button to view the
AC+DC True RMS value in the primary display.
Note:
The Blue Button is to choose AC or DC current.
•
If the value to be measured is unknown, use the maximum measurement position
and reduce the range step by step until a satisfactory reading is obtained.
•
When the measured current is below 5A, continuous measurement is allowed.
•
When the measured current is between 5A-10A, continuous measurement ≤10sec
and more than 15 minutes must be allowed between measurements.
•
When current measurement has been completed, disconnect the test leads from
the circuit under test and remove test leads from the input terminals of the meter.
Measuring Resistance
•
To measure resistance, procede as follows:
1. Insert the red test lead into the
Ω
terminal and
the black test lead into the COM terminal.
2. Set the range selector to
Ω
press BLUE
button to select
Ω
measurement mode.
3. Connect the test leads across with the object
being measured.
4. The measured value shows on the display.
Note:
The BLUE button cycles among resistance,
continuity, and diode.
•
The LCD displays OL indicating open-circuit
or the tested resistor value is higher than the
maximum range of the meter.
