-
６
-
*circuit open ,these is no
“beep” and the display shows “OL”
4. Diode check
IMPORTANT:
Turn the power off to the test circult
Select the
range with the rotary switch .
Press
“
” button to select
the
diode Check(
)
.
Insert:
*Black lead in
COM
terminal.
*Red lead in
V/
Ω
/
RPM
terminal.
Touch the Black test probe to the negative(-) side of the diode.
Touch the Red test probes to the positive (+) side of the diode.
Reverse the probes : Black to the po) side and Red to the negative(-)
side.
NOTE:
A
”good ” diode will read low in one direction and high in the other direction
when the probes are reversed (or vice versa).
A defective diode will have the same reading in both directions or read between
1.0 to 3.6V in both directions .
5. Capacitance
IMPORTANT: turn the power OFF
to the vehicle circuit to be tested.
Discharge the capacitor leads
together.Use
the
DC
volts
function to confirm that the
capacitor is discharge.
Select the
CAP
range with the
rotary switch.
Insert:
*Black lead in
COM
terminal.
*Red lead in
V/
Ω
/
RPM
terminal.
NOTE:
*Holding the probes with your hands may charge the capacitance in circuit and
generate a false reading.
*Residual voltage charges on the capacitor. poor insulation resistance or poor
dielectric absorption may cause measurement errors.
6.temperature (Temp)
IMPORTANT: to avoid heat damage to the meter , keep it away from
sources of very high temperature. The life of the temperature probe is
also reduced when subjected to very high temperature (operating range is
-50
℉
to 2,000
℉
).
Select the
℃
or
℉
. setting with the
rotary switch.
Insert
the
temperature
probe
connector into the
COM
and
V/
Ω
/
RPM
socket.
Touch the end of the temperature
sensor to the area or surface of the
object to be measured.
7. Frequency (Hz)
Select the frequency (Hz)
setting with the rotary switch .
I
Insert:
*Black lead in
COM
terminal.
*Red lead in
V/
Ω
/
RPM
terminal.
Connect the Black test probe to
ground.
Connect the Red test probe to
“signal out” Wire of the sensor
to be tested.
8. RPM/X10RPM
