Pollution Degree - Velleman DVM851 Mode D'emploi

that are related to voltages and voltage peaks which can occur within
the environment of use. Refer to the table above.
This device is only suitable for measurements up to 600V in
CAT 2

Pollution Degree

IEC 61010-1 specifies different types of pollution environments, for
which different protective measures are necessary to ensure safety.
Harsher environments require more protection, and the protection
against the pollution which is to be found in a certain environment
depends mainly on the insulation and the enclosure properties. The
pollution degree rating of the DVM indicates in which environment the
device may be used.
Pollution No pollution or only dry, nonconductive pollution occurs.
degree 1 The pollution has no influence. (only to be found in
hermetically sealed enclosures)
Pollution Only nonconductive pollution occurs. Occasionally,
degree 2 temporary conductivity caused by condensation is to be
expected.(home and office environments fall under this
category)
Pollution Conductive pollution occurs, or dry nonconductive
degree 3 pollution occurs that becomes conductive due to
condensation that is to be expected.
(industrial environments and environments exposed to
outside air - but not in contact with precipitation)
Pollution The pollution generates persistent conductivity caused
degree 4 by conductive dust or by rain or snow. (exposed outdoor
environments and environments where high humidity
levels or high concentrations of fine particles occur)
Warning:
This device was designed in accordance with EN 61010-1 pollution
degree 2. This implies that certain restrictions in use apply that are
related to pollution which can occur within the environment of use.
Refer to the table above.
 This device is only suitable for measurements in Pollution
degree class 2 environments.
V. 03 – 23/10/2015
DVM851
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