Rigol VS5000 Series User Manual page 7

RIGOL
Measurement Category
The VS5000 series Digital Oscilloscope is intended to be used for measurements in
Measurement Category I.
Measurement Category Definitions
Measurement Category I is for measurements performed on circuits not directly
connected to MAINS. Examples are measurements on circuits not derived from MAINS,
and specially protected (internal) MAINS derived circuits. In the latter case, transient
stresses are variable; for that reason, the transient withstand capability of the equipment
is made known to the user.
WARNING
IEC Measurement Category I. The HI and LO input terminals may be connected to
circuit terminal in IEC Category I installations for voltages up to 300 VAC. To avoid
the danger of electric shock, do not connect the inputs to circuit's voltages above 300
VAC.
Transient overvoltage is also present on circuits that are isolated from mains. The
VS5000 series Digital Oscilloscopes is designed to safely withstand occasional
transient overvoltage up to 500 Vpk. Do not use this equipment to measure circuits
where transient overvoltage could exceed this level.
© 2008 RIGOL Technologies, Inc. V
User's Guide for VS5000 Series