6. Resistance
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 Q nS
••I),
and
current
n
is the default resistance measurement as shown
in Figure 8. Connect the test leads to both ends of the
measured resistance.
3) Directly read the measured resistance values on the display.
&. Attention:
• If the open circuit of measured resistance or resistance
value exceeds the maximum range of the meter,"OL" will
show on the display.
• 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.
• When measuring low resistance, the test lead will bring
about measurement errors of resistance between 0.10 to
0.20. To obtain accurate readings, relative measurement
can be adopted. First short the input test lead, then press
the key MENU and press F2 to enter the relative measurement
Perform the measurement of low resistance after the meter
automatically subtracts the display value of shorted test lead.
• If the resistance value is greater than 0. 50 for a shorted
test lead, the test lead should be checked to see any loose
or other factors.
• When measuring the resistance above 1 MO, the readings
require a few seconds to be stable. It is normal for the
measurement of high resistance. In order to obtain stable
readings, short test lines can be used for the 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.
Figure 8
50
Содержание MP730657
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