Safety requirement
EN
HBT3000 series user manual
Copyright © Qingdao Hantek Electronic Co., LTD
6
low level.
Installation (overvoltage) category II
refers to the local distribution level, which
is suitable for equipment connected to the mains (AC power supply).
Pollution Degree
Pollution Degree 2
Pollution Degree Definition
⚫
Pollution Degree 1:
No pollution or only dry, nonconductive pollution
occurs. The pollution has no effect. For example, a clean room or air-
conditioned office environment.
⚫
Pollution Degree 2:
Normally only nonconductive pollution occurs.
Temporary conductivity caused by condensation is to be expected. For
example, indoor environment.
⚫
Pollution Degree 3:
Conductive pollution or dry nonconductive pollution
that becomes conductive due to condensation occurs. To be found in
industrial environment or construction sites (harsh environments). For
example, sheltered outdoor environment.
⚫
Pollution Degree 4:
The pollution generates persistent conductivity caused
by conductive dust, rain, or snow. For example, outdoor areas.
Security level
Class 1 - Grounded products
