Measurement Categories; Statement Of Conformity - Greenlee PDMM-20 Manual De Instrucciones

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 Textron Inc. is certified in accordance with ISO 9000
(2000) 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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