User Manual

Product Description
R&S
®
RT-ZHD07/15/16/60
9User Manual 1800.2588.02 ─ 01
1.3 Pollution Degrees
The pollution degree classifies the amount of dry pollution and condensation that may
occur in the environment. Products must be used only in the environment for which
they are rated.
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Pollution Degree 1:
No pollution or only dry, nonconductive pollution occurs. The pollution has no
effect. Products of this category are generally encapsulated, hermetically sealed,
or used only in clean rooms.
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Pollution Degree 2:
Normally only dry, nonconductive pollution occurs. Occasionally a temporary con-
ductivity that is caused by condensation must be expected. Temporary condensa-
tion occurs only when the product is out of service. The typical location is an office,
laboratory or home environment.
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Pollution Degree 3:
Conductive pollution, or dry, nonconductive pollution that becomes conductive due
to condensation. The typical environment are sheltered locations where neither
temperature nor humidity is controlled, for example, industrial manufacturing areas.
The location is usually protected from direct sunshine, rain, and direct wind.
●
Pollution Degree 4:
The pollution generates persistent conductivity caused by conductive dust, rain, or
snow. This is typical for outdoor locations.
Pollution Degrees