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.
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 or frequencies 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.
Service safety summary
The Service safety summary section contains additional information required to safely perform service on the product. Only qualified
personnel should perform service procedures. Read this Service safety summary and the General safety summary before performing any
service procedures.
To avoid electric shock.
Do not touch exposed connections.
Do not service alone.
Do not perform internal service or adjustments of this product unless another person capable of rendering first aid and resuscitation is
present.
Disconnect power.
To avoid electric shock, switch off the product power and disconnect the power cord from the mains power before removing any covers or
panels, or opening the case for servicing.
Use care when servicing with power on.
Dangerous voltages or currents may exist in this product. Disconnect power, remove battery (if applicable), and disconnect test leads
before removing protective panels, soldering, or replacing components.
Verify safety after repair.
Always recheck ground continuity and mains dielectric strength after performing a repair.
Important safety information
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