Definition of measurement categories
Measurement category II:
Measurements on circuits connected directly to the low-voltage networks by plugs.
Typical short-circuit current < 10 kA
Measurement category III:
Measurements performed on the mains installation of a building (stationary consumers
with non-pluggable connection, connection to the distribution board, built-in devices in
the distribution board).
Typical short-circuit current < 50 kA
Measurement category IV:
Measurements on the source of the low voltage installation (meter, main connection,
primary overcurrent protection). Typical short-circuit current > 50 kA
Check the device regularly for security and safety, e.g. damaged housing or pinched
leads.
Never use cleaning agents which could damage the surface of the measuring device.
Likewise, do not use sharp-edged tools, screwdrivers, metal brushes, etc. for cleaning.
Use a clean, lint-free, antistatic and dry cleaning cloth to clean the device.
Do not discard this device with normal household waste. Dispose of the
device via an approved waste disposal company or via your local
authority waste disposal facility. Observe the currently valid regulations.
In case of doubt, contact your waste disposal facility.
Dispose of all packaging in an environmentally sound manner.
Maintenance and cleaning
Environmental instructions
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