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3.4.
measuriNG Dc voLtaGe (fig.3).
3.4.1.
set the selection switch to 'VoltAGe' position.
3.4.2.
connect the probe to the positive terminal of the circuit and clip the auxiliary earth lead to the negative terminal.
3.4.3.
the voltage indicators will illuminate to indicate the voltage of the circuit.
fig.2
3.5.
poLaritY testiNG (fig.4).
3.5.1.
set the selection switch to 'test' position.
3.5.2.
connecting the tip of the probe to a positive (+) circuit will illuminate the test indicator red.
3.5.3.
connecting the tip of the probe to a negative (-) circuit will illuminate the test indicator Green.
3.5.4.
connecting the tip of the probe to an open circuit will fail to illuminate the test indicator.
3.6.
CONTINUITY TESTING (fig.5).
3.6.1.
set the selection switch to 'test' position. Do Not press the power switch.
3.6.2.
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.
3.6.3.
When continuity is present the test indicator will illuminate Green.
fig.4
3.6.4.
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.
3.6.5.
set the selection switch to 'test' position.
3.6.6.
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.
3.6.7.
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.
3.6.8.
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.
3.7.
JUMPER LEAD FEATURE (fig.7).
3.7.1.
set the selection switch to 'test' position.
3.7.2.
the black battery clip and the auxiliary earth lead are connected directly through the unit. By leaving the red battery clip disconnected
from the vehicle's battery, the unit can be used as a long jumper lead.
3.7.3.
Be careful to avoid a short circuit and overloading when using this jumper function. In this configuration, the leads are not protected by
the unit's built in circuit breaker.
fig.6
© Jack sealey limited
fig.3
Original Language Version
fig.5
fig.7
PPVt
issue 2 (H, f) 23/02/18
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