Megger LT310, Руководство пользователя

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10
Application
This instrument may be connected live to earth or between live conductors
of systems that have a rated voltage of 300V a.c. rms to earth and an
installation (overvoltage) Category III or lower.
This means that the instrument may be connected to any fixed wiring of a
building installation, but not to primary supply circuits such as overhead
cables. To maintain user safety and ensure accurate measurements, only use
the test leads supplied or by Megger Limited.
LED indicators
Three RED led indicators show circuit connection status when correctly
connected to a live circuit. These are for indication purposes only and
should not be relied upon as a indication of the presence of a hazardous
voltage.
Test leads
All test leads form part of the measuring circuit of the instrument and must
not be modified or changed in any way, or be used with any other electrical
instrument or appliance.
The mains plug test lead supplied with the Megger tester is a test lead that
forms part of the measuring circuit of the instrument. The overall length of
this lead must not be altered. If the power cord plug is not suitable for your
type of socket outlets, do not use an adapter. You may change the plug once
only by cutting the cord as close to the plug as possible and fitting a suitable
plug.
The colour code of the cord is:
Earth (Ground) Yellow/Green
Neutral Blue
Phase (Line) Brown
Note: A plug severed from the power cord must be destroyed, as a plug
with bare conductors is hazardous in a live socket outlet.
Test lead connection
The supplied test leads should be connected to the appropriate sockets on
the rear of the instrument marked L0 and L1, or to the 3 way test socket.
Standard test probes and crocodile clips are supplied for connection to the
circuit under test.
The test lead supplied with the LT310, LT320 and LT330 provides connection
for 2 wire testing or 3 wire testing, using the 3 wire (red, black and green)
lead set (6220-782)
all instruments
all instruments LT320/LT330