Measurement Categories; Statement Of Conformity - Greenlee PDMM-20 Manuel D'instructions

PDMM-20

Measurement Categories

These definitions were derived from the international safety
standard for insulation coordination as it applies to measurement,
control, and laboratory equipment. These measurement categories
are explained in more detail by the International Electrotechnical
Commission; refer to either of their publications: IEC 61010-1 or
IEC 60664.
Measurement Category I
Signal level. Electronic and telecommunication equipment, or parts
thereof. Some examples include transient-protected electronic
circuits inside photocopiers and modems.
Measurement Category II
Local level. Appliances, portable equipment, and the circuits they
are plugged into. Some examples include light fixtures, televisions,
and long branch circuits.
Measurement Category III
Distribution level. Permanently installed machines and the circuits
they are hard-wired to. Some examples include conveyor systems
and the main circuit breaker panels of a building's electrical
system.
Measurement Category IV
Primary supply level. Overhead lines and other cable systems.
Some examples include cables, meters, transformers, and other
exterior equipment owned by the power utility.

Statement of Conformity

Greenlee, Inc. is certified in accordance with ISO 9001:2008 for
our Quality Management Systems.
The instrument enclosed has been checked and/or calibrated using
equipment that is traceable to the National Institute for Standards
and Technology (NIST).
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