allsun Power Probe 6-24V DC Auto Electric Circuit Tester Car Electrical System

Description

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allsun Power Probe 6-24V DC Auto Electric Circuit Tester Car Electrical System
allsun Power Probe 6-24V DC Auto Electric Circuit Tester Car Electrical System Diagnostic Tool Test Continuity/Polarity of a Voltage
Features
EM285 power probe widely application: Test for continuity. Test for polarity of a voltage. Check switches, relays and the on-off of diodes, fuses and circuits . Test for polarity of electric cables and plugs. Track and locate short circuits. Test for bad ground contacts.
Long test lead. The cable length is about 5m(16ft) which allows you test any electrical system easily. Operation Instrcution: Unroll the unit's cable. Clamp the red clip to the positive terminal of the vehicle's battery. Clamp the black clip to the negative terminal of the vehicle's battery.
EM285 is an Electrical Tester for Reducing Diagnostic Time in Automotive Electrical Systems. The unit has short-circuit protection and can test for bad ground contacts instantly.
Car circuit tester has an alarm sound made by the item indicates that the circuit breaker trips off. After the circuit breaker trips, it will reset automatically within 3 to 5 seconds. After an alarm sound, if this item is still connected with the testing object and you keep pressing down the power switch, the circuit breaker will repeat the process of trip and reset automatically.
EM285 Automotive electric system 6-24V DC tools have long cable makes your testing easily. It is a comprehensive 6-24V DC test kit. After a simple hook-up of the unit to the vehicle's battery, automotive technician can conduct a positive or negative battery current to the tip by rocking the power switch forward or backward.
Package includes:
1pc x Plastic Package
1pc x Instruction Manual
1pc x Flexi extension cable
1pc x Crocodile clip
1pc x Wire probe
1pc x Back-probe
Tips
1. An alarm sound made by the item indicates that the circuit breaker trips off.
2. After the circuit breaker trips, it will reset automatically within 3 to 5 seconds.
3. After an alarm sound, if this item is still connected with the testing object and you keep pressing down the power switch, the circuit breaker will repeat the process of trip and reset automatically.
1.Quick self-test
Hook-up. Unroll the unit’s cable. Clamp the red clip to the positive terminal of the vehicle’s battery. Clamp the black clip to the negative terminal of the vehicle’s battery. Press the front part(“－’’)of the power switch,the LED indicator should light RED. Press the rear part(“=’’),the LED indicator should light GREEN. The unit is now ready to use.
2.Polarity testing
Contacting the probe’s tip to a positive(+)circuit will light the LED indicator RED.Contacting the probe’s tip to a negative(－)circuit will light the LED indicator GREEN.Contacting the probe’s tip to an open circuit will be indicated by that the LED indicator is off.
3.Continuity testing
By using the probe tip together with the auxiliary ground lead.continuity can be tested on wires and components which are disconnected from the vehicle’s electrical system.When continuity is present,the LED indicator will light GREEN. Note:Don’t press the power switch.
4.Activating components out of the vehicle’s electrical system
By using the probe tip together with the auxiliary ground lead,components can be activated,thereby testing their function.Connect the auxiliary ground lead’s clip to the negative terminal of the component to be tested.Contact the probe to the positive terminal of the component,the LED indicator should light GREEN indicating continuity through the component.
5.Testing trailer lamps and connections
1)Connect the unit to a good battery.
2)Clip the clip of the auxiliary ground lead to the trailer ground
3)Probe the contacts at the jack while pressing the power switch’s front part((“－’’).This lets you check the function and orientation of the trailer lamps.
6. Activating electrical components
a.To activate components with positive(+)voltage: Contact the probe tip to the positive terminal of the component,the LED indicator should light GREEN.While keeping an eye on the green indicator,quickly press and release the power switch’s front part(“－’’).If the green indicator changed instantly from GREEN to RED,you may proceed with further activation.If the green indicator went off at that instant of of the unit sounds,the unit has been overload.This could happens for the following reasons: 1)The tip’s contact is a direct ground. 2)The component is short-circuited.
7.Jumper lead feature
The black clip and the auxiliary ground lead are connected directly through the unit.By leaving the red clip disconnected from the vehicle’s battery,the unit can be used as a long jumper lead. Be careful to avoid short circuits and overloading when using this jumper function.In this configuration,the leads are not protected by the unit’s circuit breaker.
8. Checking for bad ground contacts
Probe the suspected ground wire or contact with the probe tip. Observe the green LED indicator. Press the power swithc’s front part(“－’’)then release. If the LED indicator changed from GREEN to RED,this is not a true ground. If the unit sounds,this circuit is more than likely a direct ground.Keep in mind that high current components such as starter motors will also cause the unit to sound.
9.Following and locating short circuits
In most cased a short circuit causes a fuse blowing or a circuit breaker tripping.Here is the best place to begin the search.Remove the blown fuse from the fuse box.Connect the probe tip to each of both contacts in the fuse box and press the power swithc’s front part(“－’’).The side which causes the LED indicator to turn off or causes the unit to sound is the shorted circuit.Note this wire’s indentification code or color.Follow the wire as far as you can along the wiring harness.for instance if you are following a short in the brake light circuit you may know that the wire must pass though the wiring harness at the door sill.
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