Tektronix MDO4000C Series, User Manual

Page: 12 / 160

Probes and test leads
Before connecting probes or test leads, connect the power cord from the power
connector to a properly grounded power outlet.
Keep fingers behind the finger guards on the probes.
Remove all probes, test leads and accessories that are not in use.
Use only correct Measurement Category (CAT), voltage, temperature, altitude,
and amperage rated probes, test leads, and adapters for any measurement.
Beware of high voltages.
Understand the voltage ratings for the probe you are
using and do not exceed those ratings. Two ratings are important to know and
understand:
■
The maximum measurement voltage from the probe tip to the probe reference
lead.
■
The maximum floating voltage from the probe reference lead to earth ground.
These two voltage ratings depend on the probe and your application. Refer to the
Specifications section of the manual for more information.
WARNING.
To prevent electrical shock, do not exceed the maximum measurement
or maximum floating voltage for the oscilloscope input BNC connector, probe
tip, or probe reference lead.
Connect and disconnect properly.
Connect the probe output to the measurement
product before connecting the probe to the circuit under test. Connect the probe
reference lead to the circuit under test before connecting the probe input.
Disconnect the probe input and the probe reference lead from the circuit under
test before disconnecting the probe from the measurement product.
Connect and disconnect properly.
De-energize the circuit under test before
connecting or disconnecting the current probe.
Connect the probe reference lead to earth ground only.
Do not connect a current probe to any wire that carries voltages above the current
probe voltage rating.
Inspect the probe and accessories.
Before each use, inspect probe and accessories
for damage (cuts, tears, or defects in the probe body, accessories, or cable jacket).
Do not use if damaged.
Ground-referenced oscilloscope use. Do not float the reference lead of this probe
when using with ground-referenced oscilloscopes. The reference lead must be
connected to earth potential (0 V).
Important safety information
viii MDO4000C Series Oscilloscope User Manual
Preliminary