Electric Circuit Tester

 

1. Test for continuity

2. Test for polarity of a voltage

3. Check switches, relays and the on-off of diodes, fuses and circuits

4. Test for polarity of electric cables and plugs

5. Track and locate short circuits

6. Test for bad ground contacts

All-Sun EM285 Operation Instrcution:

Do's and don'ts:
1. Do not use the item around explosive gas, vapor, or dust. When the power switch is pressed (or rocked), battery current is conducted directly to the tip which may cause sparks when contacting ground or certain
circuits.

2. The unit is not to be used with 110/220V house current, it is only use for DC 6~24V systems.

3. Do not use on AC voltage.

4. After you finishing checking vehicle, correctly restored all the connection-s which you disconnected.

5. Always follow the instructions and procedures indicated in the vehicle's service manual before attempting to disconnect any part or subsystem of the electrical circuit.

6. Never touch any dangerous part of the vehicle with your hand for safety. Don't touch any live conductor with hand or skin.

7. Don't use it if it is damaged.

8. Some components of vehicle work on low voltage, they cannot withstand the voltage allied by the item. To avoid damage for these components, don't use the item to apply voltage directly or indirectly.

9. Before driving, please always make sure that the vehicle is safe and reliable.

10. Don't use this item when driving.

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.