Megger AVO 830, Руководство пользователя

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www.megger.com AVO®830 and AVO®835 8
Safety
Measurement Connection
Only Megger supplied test leads designed for this instrument provide the full safety rating.
Voltage
The rated measurement connection voltage is the maximum line to earth voltage at which it is safe to connect.
CAT IV
Measurement category IV: Equipment connected between the origin of the low-voltage mains supply and the
distribution panel.
CAT III
Measurement category III: Equipment connected between the distribution panel and the electrical outlets.
CAT II
Measurement category II: Equipment connected between the electrical outlets and the user’s equipment.
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Measurement equipment may be safely connected to circuits at the marked rating or lower. The connection
rating is that of the lowest rated component in the measurement circuit.
Warnings, Cautions and Notes
Warnings
A Warning alerts the reader to situations where a hazard to personnel can occur. They are placed before the event
to which they relate and are repeated at each applicable occasion.
Cautions
A Caution alerts the reader to situations where equipment damage may result if a process is not followed. They
are placed before the event to which they relate and are repeated at each applicable occasion.
Notes
Notes give additional information that aid the reader in the use or understanding of the equipment or subject,
they are not used when a Warning or Caution is applicable.
They are not safety related and may be placed either before or after the associated text as required.