Sealey PPVT - Manual (Page 2)

3.6 activatinG components removeD from
tHe veHicLe’s eLectricaL system. (such as
fuel pumps, starter solenoids, magnetic clutches,
blower motors, cooling fans, lights etc.) (fig.6).
By using the probe tip together with the auxiliary
earth lead, components can be activated, thereby
testing their function.
3.6.1 set the selection switch to ‘tEst’ position
3.6.2 connect the auxiliary earth lead’s clip to the
negative terminal of the component to be tested.
contact the probe to the positive terminal of the
component. the test indicator should illuminate
GrEEn, indicating continuity through the component.
3.6.3 Whilst observing the test indicator, quickly press the
power switch to the single bar ‘PositiVE’ position
and release it. if the test indicator changes from
GrEEn to rED, you may proceed with further
activation.
3.6.4 if the test indicator went off instantly, the unit has
been overloaded. this could happen for the following
reasons:
a) Where the tip of the tester has made contact is a
direct earth or a negative voltage.
b) the component has a short circuit.
c) the component requires a high current (e.g. a starter
motor).
note: the unit is equipped with a built in circuit breaker
for overload protection. After the circuit breaker trips, it
will reset automatically.
3.3 measurinG Dc voLtaGe (fig.3).
3.3.1 set the selection switch to ‘VoLtAGE’ position.
3.3.2 connect the probe to the positive terminal of the circuit
and clip the auxiliary earth lead to the negative
terminal.
3.3.3 the voltage indicators will illuminate to indicate the
voltage of the circuit
fig.3
3.4 poLarity testinG (fig.4).
3.4.1 set the selection switch to ‘tEst’ position.
3.4.2 connecting the tip of the probe to a positive (+) circuit
will illiminate the test indicator rED.
3.4.3 connecting the tip of the probe to a negative (-) circuit
will illuminate the test indicator GrEEn.
3.4.4 connecting the tip of the probe to an open circuit will
fail to illuminate the test indicator.
3.5 continuity testinG (fig.5).
3.5.1 set the selection switch to ‘tEst’ position. Do not
press the power switch.
3.5.2 using the probe tip together with the auxiliary earth
lead, continuity can be tested on wires and components
which are disconnected from the vehicle’s electrical
system.
3.5.3 When continuity is present the test indicator will
illuminate GrEEn.
fig.4
fig.5
fig.6
Original Language Version
PPVt issue: 1 - 13/05/11