EZ Digital DM-330SRS, Руководство по эксплуатации

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C C
K
K
A A
L L
B B
C C
K
K
A A
L L
B B
D D
R R
E
E
D D
R R
E
E
Figure 5-2. Measuring Current
APPLICATIONS
MEASURING CURRENT (AC/DC)
11
0.000
0.000
Measuring Current (AC/DC)
If you do not know approximately what the current is,
connect the black lead to common terminal and red one to
10A input terminal first to see if you have a safe level for the
input (max. 400 ) terminal and turn the rotary switch to
DCA or ACA range as Figure 5-2.
Connect the meter in series with the load or circuit under test,
and note that the frequency range for AC current
measurement is 50
to 400 and 50/60 for DM-333
When measuring current, the meter's internal shunt resistors
develop a voltage across the meter's terminals called burden
voltage . This voltage drop is very low in your meter, but it
may affect precision circuits or measurements.
Over range is being indicated by flickered figure 4 in display.
(DM-331, 332, 334) and by character OL (DM-333)
WARNING
DO NOT APPLY THE VOLTAGE OF MORE THAN
60V DC OR 30V AC RMS.