EZ Digital DM-330SRS, Руководство по эксплуатации

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C C
K
K
A A
L L
B B
D D
R R
E
E
4.000
Figure 5-3. Measuring Resistance
APPLICATIONS
MEASURING RESISTANCE
12
Measuring Resistance
To measure resistance, connect the black lead to common
terminal and red one to v/ terminal, and turn the rotary
switch to range as Figure 5-3. Connect the test leads
across the resistance under measurement.
CAUTION
Turn off power on the test circuit and discharge all
capacitors before attempting in-circuit resistance
measurements, If an external voltage is present across
a component, it will be impossible to take an accurate
measurement of the resistance of that component.
Due to the sensitive nature of 400 Ohm(DM-331, DM-332, DM-334), 320 Ohm(DM-333) range, a residual resistance
is present. This resistance will display itself, if the probes are shorted. This residual resistance is due to the lead, track
and switch resistance. To obtain measurement within the stated accuracy when using the 400 Ohm(DM-331, DM-332,
DM-334), 320 Ohm(DM-333) range subtract from your value the residual resistance reading.