Getting Started
Operating Safe
ly with
Battery Power
WARNING. To avoid electric shock, connect the rear-panel ground terminal to
earth ground
when operating the oscilloscope from battery power.
For safe operation, the oscilloscope chassis should always remain at earth ground
potential.
Without a connection between the chassis and earth ground, you can
receive a shock from exposed metal on the chassis if you connect an input to
a hazardous voltage (>30 V
RMS
,>42V
pk
). To protect yourself against possible
shock, you can attach the Tektronix-supplied grounding wire from the terminal on
the rear panel to earth ground. If you use a different grounding wire, it must be
at least 18 gauge.
If you choose not to attach the grounding wire, you are not protected against
elect
ric shock if you connect the oscilloscope to a hazardous voltage. You can still
use the oscilloscope if you do not connect a signal greater than 30 V
RMS
(42 V
pk
)
to the probe tip, the BNC connector center, or the common lead. Ensure that all
probe common leads are connected to the same voltage.
WARNING. Hazardous voltages may exist in unexpected places due to faulty
circuitry in the device under test.
CAUTION. When operating the oscilloscope on battery power do not connect a
grounded device, such as a printer or computer, to the oscilloscope unless the
o
scilloscope's grounding wire is connected to the earth ground.
10 TDS3000C Series Oscilloscope User Manual
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