FLUKE 393FC User Manual for the Fluke 393FC True-rms Clamp Meter with iFlex, CAT III 1500 V, 1500 V DC/1000 V AC/ 999.9 A DC or AC

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CAT III 1500V TRMS Clamp Meter

Basic Measurements

XW Warning

To prevent possible electrical shock, fire, or personal injury:

• Hold the Product behind the tactile barrier.

• Do not measure current while the test leads are in the input jacks.

Hazardous Voltage Indicator

When the Clamp senses a voltage more than ±30 V or a voltage overload (OL), Z shows on the

display to tell you a hazardous voltage is at the Clamp input.

AC Voltage Measurement with Test Leads

To measure ac voltage and the frequency:

1. Turn control knob to V.

2. Connect the black test lead to the COM terminal and the red test lead to the VX terminal.

3. Touch the probes to the test points of the circuit.

The display shows the ac voltage and the frequency.

DC Voltage Measurement with Test Leads

To measure dc voltage:

1. Turn control knob to N.

2. Connect the black test lead to the COM terminal and the red test lead to the VX terminal.

3. Touch the probes to the test points of the circuit.

The display shows the measurement.

4. Push to toggle on/toggle off the mV function shown in yellow at the control knob

position.

The Clamp checks the polarity during a dc voltage measurement. When dc voltage is less than

-10 V:

1. Red LEDs blink and continue for 10 s.

2. Beeper sounds and continues for 10 s.

3. P blinks on the display.

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FLUKE 393FC True-rms Clamp Meter with iFlex, CAT III 1500 V, 1500 V DC/1000 V AC999.9 A DC or AC