11
CONTINUITY TEST
•
Insert the red test pen into the “Ω” jack and the black test pen into the “COM” jack.
•
Push the function range switch to the measurement gear “ ”, press
SELECT
to
select circuit on-off measurement and connect the test pen in parallel with the two
terminals of measured circuit.
•
When the measured resistance between the two terminals <30Ω, the circuit should
be deemed conductive and the buzzer will sound continuously.
•
When resistance is ≥30Ω and ≤60Ω, the buzzer will not sound.
•
When resistance is >60Ω, the buzzer will not sound.
•
Directly read the measured resistance value loaded
by the circuit from the display.
Note:
•
When checking on-line circuit on-off conditions, it is
required, prior to measurement, to switch off all power
in the measured circuit and discharge all residual
charges in the capacitor.
•
With respect to the circuit on-off measurement,
open-circuit voltage is approximately -3.5V and range
should be 600Ω measurement gear.
•
Do not input voltage higher than 30V DC or AC, as it
may cause personal injury.
•
After completing all measurement operations,
disconnect the test pen from the measured circuit.
select resistance measurement Ω and connect the
test pen in parallel with the two terminals of measured
resistance.
•
Directly read the measured resistance value from the
display.
Note:
•
If the open circuit of resistance being measured
exceeds the maximum range of the meter, the display
will show “OL”.
•
Before measuring resistance on-line, the power of
circuits being measured shall be powered off and all
capacitors will release residues of electric charges to
assure measurement accuracy.
DIODE MEASUREMENT
•
Insert the red test pen into the “Ω” jack and the black test pen into the “COM” jack.
The polarity of the red and black test pen is respectively “+” and “-”.
•
Push the function range switch to the measurement gear “ ”, select diode
measurement and directly read out the approximate forward direction PN junction
voltage.
