Hioki CM4371 Mode D'emploi page 11

Safety Notes
Measurement categories
This instrument conforms to the safety requirements for CAT III 1000 V, CAT IV 600 V
measuring instruments.
Distribution panel
Service entrance
Internal wiring
Service drop
CAT II
(≤1000 V)
CAT III
T
CAT IV
(≤1000 V)
(≤600 V)
Outlet
Power meter
Fixed installation
7