Resistance/Continuity; Capacitance - Fluke 301A User Manual

301A/301B/301C
Users Manual

Resistance/Continuity

To measure resistance or continuity:
1. Turn the control knob to
2. Remove power from the circuit to test.
3. Connect the black test lead to the COM terminal and the red test lead to the V terminal.
4. Touch the probes to the test points of the circuit.
The display shows the value.
If the resistance is <70 , the beeper sounds continuously to indicate continuity. If the display
shows , the circuit is open or higher than the measurement range.

Capacitance

The Clamp determines capacitance by charging a capacitor with a known current, measuring the
resulting voltage, then calculating the capacitance.
A good capacitor stores an electrical charge and may remain energized after power is
removed. Before you touch the capacitor or make a measurement, turn all power OFF,
use the Product to confirm that power is OFF, and carefully discharge the capacitor by
connecting a resistor across the leads. Be sure to wear appropriate personal
protective equipment.
To measure capacitance:
1. Turn the control knob to
2. Push to shift to the  function.
3. Remove the capacitor from the circuit and discharge the capacitor.
4. Connect the black test lead to the COM terminal and the red test lead to the V terminal.
5. Touch the probes to the capacitor leads.
The display shows the measurement.
indicates the capacitor is faulty or the capacitance value is higher then the
measurement range.
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Note
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