Circuit Tester

Description

This tester is useful for continuity testing, 3-12v DC voltage testing, 9v-12v battery testing, spark plug ignition voltage testing and live wire testing. Complete with light indicators to show results.

Continuity Tester

Connect black clip to good vehicle (ground) earth

Using piercing probe check along wire until no LED illuminates.

Identifying Live Wires

Connect black clip to good vehicle (ground) earth

Touch wire terminals at each end of wire

If this is inconclusive, hook the wire and pierce the wire insulation.

Observe LED display for live wire.

DC Voltage Testing (3v-12v)

Connect black clip to ground or negative terminal of DC Voltage source

Touch and hold the metal tester tip on the positive terminal of the DC voltage source (or other points on the circuit)

Observe the LED display to determine intensity of voltage.

12V Vehicle Battery Testing

Connect black clip to the negative battery terminal

Touch and hold metal tip on positive battery terminal

Observe LED display

3v/6v On Battery Flat

3v/6v/9v On Battery Low

3v/6v/12v On Battery Charged

9v Vehicle Battery Testing

Repeat procedure for 12v

3v/6v Faint Battery Weak or Dead

3v/6v/9v On Battery Charged

EXTREME CAUTION: This test involves working around high voltage. Check Plug wire insulation. Avoid direct body contact with spark plug wires as insulation failure may result in shock. Through the tester, faulty insulation will only result in an unpleasant sensation.

Spark Plug Ignition Voltage Test

Start and run engine at idle

Do not let Black Clip come in contact with anything

Hold the tester with index finger on the grounding screw

Touch and hold metal tip to each of the spark plug wires.

High Voltage – indicated with flicker in the Spark Plug HT indicator. No illumination will indicate shorted plug, open circuit lead or other ignition fault. NOTE: The test can be repeated at higher rpm to increase intensity of LED.

WARNING: NOT suitable for 240 volt AC voltage.

Circuit Tester Specifications

Length	175mm
Width	18mm
Height	30mm