60 V Common Mode Differential Probes
Operation
Amplifier
The amplifier forms the foundation of the probe. It is powered from the oscilloscope and in
turn communicates to the oscilloscope its identifying characteristics. This ensures the
oscilloscope channel is automatically set to the correct probe attenuation value.
On the top (label) side is an LED indicator that lights in the color of the channel to which the
probe is connected. On the bottom is the ground lead input.
60 V common mode probes have been designed for use with Teledyne LeCroy
oscilloscopes equipped with the ProBus interface. To connect to the instrument, press the
amplifier connection box onto the oscilloscope's ProBus connector until you hear a click.
The instrument will recognize the probe and:
Display a Cn DLxx-HCM dialog with probe controls and status
•
Set the oscilloscope input termination to 50 Ω
•
Light the channel indicator on the amplifier to match the color of the channel
•
Note: For accurate measurements, connect the amplifier to the oscilloscope and wait until
the "System is warming up." indicator disappears from the Cn DLxx-HCM dialog.
The amplifier may be seated directly over square pins on the board or used with any of the
compatible tips. All tips (except for the straight pin, mini- and micro-grabbers) have a two-
pin connector at one end that inserts into the differential inputs of the amplifier. It does not
matter in what direction the tip is inserted into the amplifier.
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