Getting Started
Operating Safely w ith Battery Power
WARNING. To avoid e lectric s hock , c onnec t the rear-panel ground terminal
to earth ground when operating the osc illoscope from battery power.
For safe operation, the oscillosco pe c hassis 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
,
>42 V
pk
). To protect yourself against possible shock, you can attach the
Tektronix-supplied grounding wire from the terminal on the rear p anel
to earth ground. If you use a d ifferent ground ing wire, it mu st be at
least 18 gauge.
If you choose not to attach the grounding wire, yo u are not protected
against electric shock if you connect the o scilloscope 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 t he probe tip, th e 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 unexp ecte d places due to faulty
circuitry in the device under test.
CAUTION. When ope ratin g the oscilloscope on b
attery power do not connect
a grounded device, such a s a printer or c o mpute
r, to the oscilloscope unless
the oscillosc ope's grounding wire is conn
ected to the earth ground.
TDS3000C Series O scilloscope User Manual 11
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