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CAT IV - Measurement Category IV is for measurements performed
●
at the source of the low-voltage installation. Examples are
electricity meters and measurements on primary overcurrent
protection devices and ripple control units.
For measurements on main or within Measurement Category
●
Ⅲ/Ⅳcircuits, the attached test probes must be set in Measure-
ment Category Ⅲ/Ⅳmode; otherwise, electric shock may
occur!
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