
Acute Technology Inc. Copyright 2016
Low Voltage Directive 2006/95/EC.
EN 61010-031/A1:2008. Safety requirements for electrical equipment for measurement,
control and laboratory use –Part
031: Safety requirements for handheld probe assemblies for electrical measurement and
test.
Pollution Degree Description:
A measure of the contaminants that could occur in the environment around and within a
product. Typically the internal environment inside a product is considered to be the same
as the external. Products should be used only in the environment for which they are
rated.
Pollution Degree 1.
No pollution or only dry, nonconductive pollution occurs. Products in this category are
generally encapsulated, hermetically sealed, or located in clean rooms.
Pollution Degree 2.
Normally only dry, nonconductive pollution occurs. Occasionally a temporary
conductivity that is caused by condensation must be expected. This location is a typical
office/home environment. Temporary condensation occurs only when the product is
out of service.
Pollution Degree 3.
Conductive pollution, or dry, nonconductive pollution that becomes conductive due to
condensation.
These are sheltered locations where neither temperature nor humidity is controlled. The
area is protected from direct sunshine, rain, or direct wind.
Pollution Degree 4.
Pollution that generates persistent conductivity through conductive dust, rain, or snow.
Typical outdoor locations.
Pollution Degree
Pollution Degree 2 (as defined in IEC 61010-1). Note: Rated for indoor use only.
Installation & Measurement (Overvoltage) Category Descriptions
Terminals on this product may have different installation or measurement (overvoltage)