211083
Activate components with positive voltage only
When technician tests the components, technician can use it to provide positive voltage to
the testing components. To do this, please follow the procedure:
1. Contact its tip with the positive pole of the components. If the green LED is on, it means
the testing component is conductible.
2. As the green LED goes on, please press the polar switch forward and then release it quickly. If the
LED goes from green to red, you may proceed further testing. If the green LED turns off and red
LED doesn't turns on, or if the circuit breaker of the short circuit protection tripped, it means
it has overloaded. This may due to the following reasons:
• The component is short circuit or it has been connected to the ground/ negative pole directly.
• The component is a high current component.
If the circuit breaker of the short circuit protection has tripped, it will auto-rest within no more
than 60 seconds.
Important
Please operate this function with schematic and correct testing procedure because applying
voltage arbitrarily may cause damage to components.
Use tip to apply positive voltage, which can be
helpful to diagnose the components
Motor
Activate the components with negative voltage only
Apart from applying the positive voltage, technician can also use this unit to provide negative
voltage
to the components. The procedures are as follow:
1. Contact its tip to the negative pole of the component; at this stage, the red LED should be
on if the component working correctly.
2. Push the polar switch backward and release it quickly. If the LED goes from red to green, you may
proceed further test. If the green LED goes off or the circuit breaker of the short circuit protection
tripped, it means it has overloaded. This may cause by the following reasons:
• The component is short circuit or it has been connected to the ground/ negative pole directly.
• The component is a high current component.
If the circuit breaker of the short circuit protection has tripped, it will auto-rest within no more
than 60 seconds.
Important:
When applying current to the components, please push
the switch before contact the tip with the components.
In this case, the arcing will take place between the tip
and the component instead of the switch. And so it can
increase the life time of the switch.
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Vedpak 227_Version 1_11.2019