Major tech MT832, Инструкция по эксплуатации

Страница: 9 / 12

4.5. DECIBEL
Do this test as the ACV TEST, but read the decibel scale with the
reference table of decibel not the ACV.
4.4. ACV TEST
1. Set the function switch to the highest ACV
position.
2. Insert the test leads into COM (Black lead)
and "+" socket (Red lead)
3. Connect the test leads to the circuit being
tested, regardless of the polarities. (Fig.03)
4. Read ACV scale with the reference table.
Reset the function switch to successively
lower ACV positions to obtain a higher
resolution reading.
4.6. DCA TEST
1. Set the function switch to the highest DCA
position.
2. Insert the test leads into COM (Black lead)
and "+" socket (Red lead)
3. Remove power from the circuit under test,
then open up the circuit at the point where
you wish to measure current. (Fig.04)
4. Read the DCV.A scale converted with the
reference table. Reset the function switch to
successively lower ACV positions to obtain a
higher resolution reading.
4.7. ACV TEST ON OUTPUT TERMINAL
1. Set the function switch to the highest DCV
position.
2. Insert the test leads into COM (Black lead)
and "OUTPUT" socket (Red lead)
3. Connect the test leads to the circuit to be
tested and read the scale in the same
manner as DCV test. Reset the function
switch to successively lower ACV positions to
obtain a higher resolution reading.(Fig.05)
Note: 1. The voltmeter is connected in parallel. 2.
Such a measurement is made to block the DC
voltage which 1 presents in the same circuit and
must be cut so that AC voltage can be read alone.
9