17
2. USE
2.1. VOLTAGE MEASUREMENT
Connect the red lead to the
+
terminal and the black lead to the
COM
terminal.
Set the switch to
V
.
Place the probe tips on the element to be tested, starting with the black probe tip, and maintain firm contact.
The voltage is displayed.
At the end of the measurement, disconnect the
+
terminal first, then the
COM
terminal.
The
SLT
key is used to choose to display the AC voltage only or the DC voltage only. To measure a DC
voltage, first check that the AC voltage is zero.
2.2. CURRENT MEASUREMENT
Before each current measurement, check the fuses.
Short-circuit the
+
and
10A
terminals and make a continuity measurement. If the result is 0, the fuse in
the 10A terminal is OK. If the result is OL, the fuse (F2) must be replaced.
Measure a known current (<400mA) between the
+
and
COM
terminals. If the result is 0, the fuse (F1)
must be replaced.
To make a current measurement:
Cut off power to the device to be tested and discharge all high-voltage capacitors.
Set the switch to
A
,
mA
or
µA
, depending on the value of the current to be measured.
Connect the red lead to the
10A
terminal or to the
+
terminal and the black lead to the
COM
terminal.
Place the test probes on the element to be tested and maintain a firm contact.
Power up the device to be tested and read the measurement.
2.3. RESISTANCE, DIODE, AND CONTINUITY MEASUREMENTS
Connect the red lead to the
+
terminal and the black lead to the
COM
terminal
Set the switch to Ω
.
Cut off power to the device to be tested and discharge all high-voltage capacitors.
Use the
SLT
key to select the desired function: Ω,
or .
Place the test probes on the element to be tested and maintain a firm contact. For diode voltage
measurements, place the red probe tip on the cathode and the black probe tip on the anode.
The measurement is displayed.
For low resistance measurements, measure the resistance of the leads by short-circuiting the probe
tips. Subtract the value so found from the low resistance measurements.
2.4. CAPACITANCE MEASUREMENT
Connect the red lead to the
+
terminal and the black lead to the
COM
terminal
Set the switch to .
Cut off power to the device to be tested and discharge all high-voltage capacitors.
Place the test probes on the element to be tested and maintain a firm contact.