6
7
used to perform testing via socket outlets of the electrical circuit
to be tested.
The other test lead incorporates 3 separate test
probes at the other end of the lead, which enables testing from all
other locations other than where a Socket Outlet is available e.g.
at the point of connection to separate components such as
pumps or fans etc.
Before use, the instrument case, its test leads and probes should
be checked for signs of damage or wear and if any damage is
identified should not be used until repaired or replaced. The plug
is fitted with a 13 Amp fuse and should be checked and replaced
as necessary if the unit fails to operate while connected to a
known powered circuit.
3. Using the Multi-function Earth - Loop Tester
Warning.
The TPI Multi-Function Tester is a mains powered instrument and
does not rely on an internal battery. There are no user
serviceable or replaceable parts within the instrument. Removal
of the cabinet cover will invalidate the warranty.
The Multi-Function tester automatically self checks and starts its
series of tests as soon as it is connected to a ‘live’ power supply.
The tests are conducted in the following order.
4.1 Correct Wiring Test
Connect the instrument to the circuit to be tested and energise
the circuit. The instrument will automatically ‘self test’ and
check the Earth, Live and Neutral connections at the point of
connection. During the tests a series of short bleeps will be
heard and the Light Emitting Diodes (LED’s) will flash.
Providing no problems are identified with the circuit under test,
the three green LED’s of the correct wiring indicator will remain
continuously on a continuous tone will be emitted for 3 seconds.
If there is a wrong connection or a wire not connected, the LED’s
will be flashing and an intermittent bleep will be heard whilst the
instrument remains connected to the power supply.
Fault conditions, showing the colours of the flashing LED’s for
most normal fault conditions are shown in the chart on the front of
the instrument, immediately above the ‘Correct Wiring Indicator’
as shown in Figure 3. Full details of all fault conditions as shown
in the Fault Conditions Indication Chart - Appendix 1
Figure 3.
4.2 Voltage Indicator.
After checking and confirming correct wiring, the instrument will
automatically check the supply voltage.