User manual

Compliance info
rmation
Safety class
Class 1 – grounded product.
Pollution degree de scriptions
A measure of the contaminants that could occur in the envir onment 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 c
ondensation must be expected. This location is a typical office/home environment. Temporary condensation
occurs only w hen 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.
Pollutio
n degree 4. Pollution that generates persistent conductivity through conductive dust, rain, or snow. Typical
outdoor locations.
Pollution degree rating
Pollution degree 2 (as defined in IEC 61010-1). Rated for indoor, dry location use only.
Measurement and overvoltage category descriptions
Measurement terminals on this product may be rated for measuring mains voltages from one or more of the following
categ
ories (see specific ratings marked on the product and in the manual).
Categ
ory II. Circuits directly connected to the building wiring at utilization points (socket outlets and similar points).
Cate
gory III. In the building wiring and distribution system.
Cate
gory IV. At the source of the electrical supply to the building.
NOTE. Only mains power supply circuits have an overvoltage category rating. Only measurement circuits have a
measurement category rating. Other circuits within the product do not have either rating.
Mains overvoltage category rating
Overvoltage category II (as defined in IEC 61010-1).
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