E N G L I S H
Note:
• The test leads can add 0.1Ω to 0.3Ω of error to
resistance measurement. To obtain precision
readings in low-resistance measurement, that
is the range of 200Ω, short-circuit the input
terminals beforehand and record the reading
obtained (called this reading as X).
• (X) Is the additional resistance from the test lead.
Then use the equation: measured resistance value
(Y) (X) = precision readings of resistance.
•For high-resistance measurement (>1MΩ), it is
normal taking several seconds to obtain a stable
reading.
• When resistance measurement has been
completed, disconnect the connection between
the testing leads and the circuit under test.
34
E.
Diodes and Continuity Measurement
(Figure 5)
Testing Diodes
Warning
To avoid amages to the Meter or to the
devices under test, disconnect circuit
power and discharge all the high-voltage
capacitors before diodes.
Use the diode test to check diodes, transistors, and
other semiconductor devices. The diode test sends
a current through the semiconductor junction,
and then measures the voltage drop across the
junction.
A good silicon junction drops between 0.5V and
0.8V.