BM830 4-3/4d Professional Dual Displays Multimeter

Notes per IEC61010-1 2nd Ed. (2001) Measurement Category:

Measurement Category IV (CAT 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.

Measurement Category III (CAT III)
is for measurements performed in the building installation. Examples are measurements on distribution boards, circuit- breakers, wiring, including cables, bus-bars, junction boxes, switches, socket-outlets in the fixed installation, and equipment for industrial use and some other equipment, for example, stationary motors with permanent connection to the fixed installation.

Measurement Category II (CAT II)
is for measurements performed on circuits directly connected to the low voltage installation. Examples are measurements on household appliances, portable tools and similar equipment.

Measurement category I (CAT I)
is for measurements performed on circuits not directly connected to MAINS. Examples are measurements on circuits not derived from MAINS, and specially protected (internal) MAINS derived circuits.

the BM830
4-3/4d Professional Dual Displays Multimeter Series

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  • telephone:886-886 2 2226 3396
the BM830
4-3/4d Professional Dual Displays Multimeter Series
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BM338 4-3/4d Dual Displays Automotive Multimeter

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