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Instructions for a Fluke 334 Clamp Meter

Electricity is the flow of charged particles known as electrons. There are a number of electrical measurements that can be performed to fault test a device. Quantities such as voltage, current and resistance are conventionally measured using a digital multimeter, and this involves the tester placing the measurement probes in direct contact with the measured device. In some applications where the wire cannot be disconnected or the current is very high, a Fluke 334 Clamp Meter may be of better use. These devices are able to measure quantities such as current without making contact with the wire.

Instructions

- 1
  Switch on the clamp meter by rotating the dial on the front clockwise. Select the required function from among DC current, DC voltage and power.
- 2
  Set up the measurements leads or clamp. The clamp meter is capable of measuring currents without contacting the wires. If a current measurement is being performed, carefully place the cable within the clamps at the top of the meter. If a voltage/power measurement is being performed, plug the measurement probes into the meter. These are supplied with the meter, and there is a red probe and a black probe. Plug the red probe into the positive terminal and the black probe into the negative terminal.
- 3
  Perform the measurement. For current measurements, it's a simple matter of holding down the clamp trigger while the wire is within the clamps. The screen should display the result of the measurement. For voltage measurements, bring the measurement probes into contact with the positive and negative terminals of the measured device. The voltage should be displayed on the screen. For power measurements, both the clamp and the measurements probes are used. Place the wire within the clamps of the meter, and bring the measurement probes into contact with the positive and negative terminals of the device. Both the voltage and current is measured simultaneously and the power (P=VI) is displayed on the screen.

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