Tenma 72-3545, Руководство пользователя, Страница: 12 / 14

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DIODE MEASUREMENT
• Insert the black probe into the “ COM ” input and
the red probe into the “ V Ω ” input, ready for
measurement.
• Set the measuring function range by rotating the
dial so it aims at the “ ” symbol.
• Press SELECT to switch to the diode
measurement function.
• Place the red and black probes at the positive
and negative poles of the diode to be tested.
• The positive conductivity value will be displayed
in the middle of the screen.
• If the probes are inserted into the wrong terminals
the screen will display “OL”.
• Warning : when measuring diode, the power to
the circuit must be cut off and the residual electric
charge of all electric capacitors must be fully
discharged before the diode is connected with the
product. More accurate measurements may be
available when the elements are separated from the circuit.
CAPACITANCE MEASUREMENT
• Insert the black probe into the “
COM
” input and
the red probe into the “ V Ω ” input, ready for
measurement.
• Set the measuring function range by rotating the
dial so it aims at the capacitance “ ” symbol.
• Press
SELECT
to switch to the capacitance
measurement function.
• Put the red and black probes at the two sides
of capacitance to be tested and the Meter will
automatically select the correct range. The
screen will display the current capacitance
measurement value.
• Warning: during the measurement of
capacitance, the power to the circuit must be
cut off and residual electric charge of all electric
capacitors must be fully discharged before
connecting. More accurate measurements may
be available when the elements are separated
from the circuit.
• Before measuring capacitance, press the REL button in advance to clean the
open-circuit base number to eliminate the effect of probe parasitic capacitance.
• Note: At the range of 60nF, it is suggested to press the REL button also, to clear
the short-circuit base number before measurement to eliminate the impact of
probe resistance.