Measurement Categories; Statement Of Conformity - Greenlee CMT-80 Instruction Manual

Measurement Categories

These definitions were derived from the international safety standard for insula-
tion 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 9001 (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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