RIGOL DS1000B - Manual (Page 5)

RIGOL
User’s Guide for DS1000B Series III
interior of the device or electric shock,
please do not operate in a humid
environment.
Do Not Operate in an Explosive
Atmosphere
In order to avoid damages to the device
or personal injuries, it is important to
operate the device away from an
explosive atmosphere.
Keep Product Surfaces Clean and
Dry
To avoid the influence of dust and/or
moisture in air, please keep the surface
of device clean and dry.
The disturbance test of all the
models meet the limit values of A
in the standard of EN 61326:
1997+A1+A2+A3, but can’t meet
the limit values of B.
Measurement Category
The DS1000B 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 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 DS1000B series Digital
Oscilloscopes is designed to safely
withstand occasional transient
overvoltage up to 1000 Vpk. Do not use
this equipment to measure circuits
where transient overvoltage could
exceed this level.