Fluke 381 Fluke 381 Users Manual - Page 10

Symbol, Meaning, IEC Measurement Category IV - user manual

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381 Users Manual Symbol Meaning Symbol Meaning CAT III IEC Measurement Category III CAT III equipment has protection against transients in equipment in fixed-equipment installations, such as distribution panels, feeders and short branch circuits, and lighting systems in large buildings. CAT IV IEC Measurement Category IV CAT IV equipment has protection against transients from the primary supply level, such as an electricity Meter or an overhead or underground utility service. ® Examined and licensed by TÜV Product Services. ; Conforms to relevant Australian standards. - Do not apply to or remove from HAZARDOUS LIVE conductors. , Application around and removal from HAZARDOUS LIVE conductors is permitted. Note The Measurement Category (CAT) and voltage rating of any combination of test probe, test probe accessory, current clamp accessory, and the Meter is the LOWEST rating of any individual component. 6

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381
Users Manual
6
Symbol
Meaning
Symbol
Meaning
CAT III
IEC Measurement Category III
CAT III equipment has protection
against transients in equipment in
fixed-equipment installations, such
as distribution panels, feeders and
short branch circuits, and lighting
systems in large buildings.
CAT IV
IEC Measurement Category IV
CAT IV equipment has protection
against transients from the primary
supply level, such as an electricity
Meter or an overhead or underground
utility service.
®
Examined and licensed by TÜV
Product Services.
;
Conforms to relevant Australian
standards.
-
Do not apply to or remove from
HAZARDOUS LIVE conductors.
,
Application around and removal from
HAZARDOUS LIVE conductors is
permitted.
Note
The Measurement Category (CAT) and voltage rating of any combination of test probe,
test probe accessory, current clamp accessory, and the Meter is the LOWEST rating of
any individual component.