RIGOL DS6000 Series - Manual (Page 48)

RIGOL
DS6000 Quick Guide VIII
WARNING
Make sure that no overvoltage (such as that caused by thunderbolt) can
reach the product, or else the operator might expose to danger of electric
shock.
Installation (overvoltage) Category Definitions
Installation (overvoltage) category I refers to signal level which is applicable to
equipment measurement terminals connected to the source circuit. In these
terminals, precautions are done to limit the transient voltage to the corresponding
low level.
Installation (overvoltage) category II refers to the local power distribution level
which is applicable to equipment connected to the AC line
(AC power).
Pollution Degree
Degree 2
Pollution Degree Definitions
Pollution degree 1: No pollution or only dry, non-conductive pollution occurs. The
pollution has no influence. For example: a clean room or air-conditioned office
environment.
Pollution degree 2: Normally only dry, non-conductive pollution occurs. Occasionally
a temporary conductivity caused by condensation may occur. For example: general
indoor environment.
Pollution degree 3: Conductive pollution occurs, or dry, non-conductive pollution
occurs which becomes conductive due to condensation which is expected. For
example: Sheltered outdoor environment.
Pollution degree 4: Pollution that generates persistent conductivity through
conductive dust, rain, or snow. For example: outdoor locations.
Safety Class
Class 1 – Grounded Product