6.Use the Multimeter (Optional)
106
(6)
Turn on the power of the measured circuit, and read the display.
(7)
Turn off the power of the measured circuit and discharge all high-voltage capacitors.
Remove the test leads and restore the circuit to the original condition.
Measuring AC or DC Voltage
(1)
Push
DMM
button on the front panel. Select
Current
in the bottom menu, select it
again to switch between
ACA
(AC current ) or
DCA
(DC current).
(2)
Connect the black test lead to the
COM
terminal on the back of the oscilloscope and
the red test lead to the
terminal.
(3)
Probe the test points and read the display.
Measuring Resistance
(1)
Push
DMM
button on the front panel. Select
in the bottom menu, select
R
.
(2)
Connect the black test lead to the
COM
terminal
on the back of the oscilloscope and
the red test lead to the
terminal.
(3)
Probe the test points and read the display.
Testing Diodes
(1)
Push
DMM
button on the front panel. Select
in the bottom menu, select it until
switching to
.
(2)
Connect the black test lead to the
COM
terminal on the back of the oscilloscope and
the red test lead to the
terminal.
(3)
Connect the red test lead to the positive terminal (anode) of the diode and the black
test lead to the negative terminal (cathode). The cathode of a diode is indicated with a
band. Read the diode forward bias.
Testing for Continuity
(1)
Push
DMM
button on the front panel. Select
in the bottom menu, select it until
switching to
.
(2)
Connect the black test lead to the
COM
terminal on the back of the oscilloscope and
the red test lead to the
terminal.
(3)
Probe the test points to measure the resistance in the circuit. If the reading is below 50
Ω
, the multimeter will beep.
Measuring Capacitance
(1)
Push
DMM
button on the front panel. Select
in the bottom menu, select it until
switching to
C
.
(2)
Insert the supplied capacitance measurer to the
COM
terminal and the
terminal on the back of the oscilloscope.
(3)
Insert the capacitance to the capacitance measurer, then screen shows the capacitance