Keysight Technologies InfiniiVision 3000 X Series, User Manual

Page: 31 / 432

Getting Started
1
Keysight InfiniiVision 3000 X-Series Oscilloscopes User's Guide 31
Input a Waveform
The first signal to input to the oscilloscope is the Demo 2, Probe Comp signal. This
signal is used for compensating probes.
1 Connect an oscilloscope probe from channel 1 to the Demo 2 (Probe Comp)
terminal on the front panel.
2 Connect the probe's ground lead to the ground terminal (next to the Demo 2
terminal).
CAUTION
Maximum input voltage at analog inputs
135 Vrms
50
Ω
input: 5 Vrms Input protection is enabled in 50
Ω
mode and the 50
Ω
load will
disconnect if greater than 5 Vrms is detected. However the inputs could still be damaged,
depending on the time constant of the signal. The 50 Ω input protection only functions
when the oscilloscope is powered on.
CAUTION
When measuring voltages over 30 V, use a 10:1 probe.
CAUTION
Do not float the oscilloscope chassis
Defeating the ground connection and "floating" the oscilloscope chassis will probably
result in inaccurate measurements and may also cause equipment damage. The probe
ground lead is connected to the oscilloscope chassis and the ground wire in the power
cord. If you need to measure between two live points, use a differential probe with
sufficient dynamic range.
WARNING
Do not negate the protective action of the ground connection to the oscilloscope. The
oscilloscope must remain grounded through its power cord. Defeating the ground
creates an electric shock hazard.