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Introduction
Input warning
To avoid circuit damage and possibly blowing the multimeter's current fuse, do not place
CAUTION
the probes across (in parallel with) a powered circuit when a lead is plugged into a current
terminal. This causes a short circuit because the resistance through the multimeter's
current terminals is very low.
The red LED on the multimeter turns on and the multimeter emits a continuous beep and
displays
the
A
position. The sound will continue and the red LED will remain lit until the test leads are
removed from the multimeter. If the test leads are not removed, the sound will stop after 5
seconds.
Figure 1-4
30
or
in the secondary display when the test lead is inserted into
or
mA
input terminal but the rotary switch is not set to the correct current
Vsense
U1282A
True RMS Multimeter
Vsense
Peak
Auto
Dual
mV
MHz
V
mV
mA
V
A
OUT
10A MAX
CAT IV
600V
FUSED
CAT III 1000V
440mA
MAX
FUSED
A
RMT
V
OUT
mA
COM
Example of wrong terminal input
Keysight U1281A/U1282A User's Guide
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