Figure 9
9. Continuity test
C
1) Insert the red test lead into the
n
terminal and the black
test lead into the COM terminal.
2) Set the rotary switch to the measurement OnS••>l, press the
key SELECT to select the continuity test ••>> . Connect the
test leads to both ends of the measured resistance as shown
in Figure 8. Press the function key MENU (Menu) to enter
the menu items. If pressing the key SHORT (Menu), then
the buzzer selects
short circuit for alarm sound, the measured resistance
between both ends <100, the buzzer continuously sound
> 500. The buzzer does not sound. If pressing the key
OPEN (Menu), then the buzzer selects open circuit for alarm
sound, the measured resistance between both ends> 500,
the buzzer continuously sound <100. The buzzer does not
sound.
3) Directly read the measured resistance value on the display.
&Warning
• When measuring the in- circuit resistance, all the power
within the measured circuit must be shut off before
measurement and all the capacitors must be discharged
to ensure a correct measurement.
• Do not input a voltage higher than 30V in AC(rms),AC(peak
42V) or 60V in DC to avoid personal injury.
• After completing all the measuring operations, disconnect
the connection between the test leads and the circuit under
test.
10. Diode
1) Insert the red test lead into the
*
terminal and the black
test lead into the COM terminal. The polarity of red test
lead is "+" and"-" for black test lead.
2) Set the rotary switch to the measurement *-lr and the
diode measuring mode
*
is default. Connect the test
leads to both ends of the measured diode as shown in
Figure 10. Directly read the approximate forward PN
junction voltage of the measured diode on the display.
52
Содержание MP730657
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