U3402-90001.book Page 54 Friday, July 24, 2009 4:04 PM
3
Measurement Tutorial
N O TE
WARN IN G
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6 Press
. Use
secondary display.
• Press
• Press
to select the suitable range if DCV+ACV ripple is above the scale of the
current range.
Measure AC and DC Current on a Rectification Circuit
A single measurement for both AC current and DC current can be displayed
through both display while testing a rectifier circuit.
• Make sure you select the correct input terminal according to the input range
used.
• Do not apply more than 12 A to the A input terminal to avoid the multimeter from
damage.
1 Connect the red and black test leads to the input terminal and probe the test
points as shown in
–
AC/DC
current
source
+
Figure 3-2 Terminal connection when measuring AC and DC current on a rectification
circuit
and
to select autoranging or manual ranging for
to disable the secondary display.
Figure 3-
2.
U3402A User's and Service Guide