Power Probe Tek Power Probe III S, Instruction Manual

Circuit Breaker

Voltage & Polarity Testing

In Voltmeter Mode (Mode #1) with the circuit breaker tripped, the display will show “Circuit Breaker 

Tripped”(see page 11-12 for detail) All other functions of the PP3S are still active. This means that you 

can still probe a circuit and observe the voltage reading. When the circuit breaker is tripped, the PP3S 

will NOT be able to conduct battery current to the tip even when the power switch is pressed. Intention-

ally tripping the breaker and using the PP3S to probe can be considered an added precaution against 

accidental pressing of the power switch.

While the PP3S is in Voltmeter Mode, contact the probe tip to a 

POSITIVE 

circuit. The red 

positive sign

“+” LED will light and the voltmeter displays the voltage with a resolution of 1/10th of a volt (0.1v).

If the audio feature is turned on, a high pitched tone will sound. 

(See RED/GREEN POLARITY INDICATOR

& AUDIO TONE on page 10)

 While the PP3S is in Voltmeter Mode, contact the probe tip to a 

NEGATIVE

circuit. The 

green negative

 sign “–” LED will light and the voltmeter displays the voltage. If the audio 

feature is turned on, a low pitched tone will sound. Contacting the Power Probe tip to an OPEN circuit 

will be indicated by neither of the LED indicators lighting.

While the PP3S is in Power Probe Mode. Contact the probe 

tip to a 

NEGATIVE

 circuit. The 

green negative

 sign “-” LED 

will light. If the audio feature is turned on, a low pitched 

tone will sound.

While the PP3S is in Power Probe Mode. Contact the probe 

tip to a 

POSITIVE

 circuit. The 

red positive

 sign “+” LED will 

light and the voltage reading of the circuit will be indicated 

on the LCD display. If the audio feature is turned on, a high 

pitched tone will sound.

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