Clamp meters that measure up to your toughest standards.

A DC reading clamp meter is ideal, if available.

Transformer or current clamp meter, (suitable for AC current only).

The vane is usually fixed directly to the display mechanism of an analogue (moving pointer) clamp meter.

Examples of devices that can provide this isolation are Hall effect current sensors and current transformers (see clamp meters).

Clamp meters are used by electricians, sometimes with the clamp incorporated into a general purpose multimeter.

A relatively recent development was a multi-conductor clamp meter with several sensor coils around the jaws of the clamp.

Leakage Clamp Meter suits electrical applications.

Clamp meter (current transducer)

An electrical meter with integral AC current clamp is known as a clamp meter, clamp-on ammeter or tong tester.

Clamp meters clamp around a conductor carrying a current to measure without the need to connect the meter in series with the circuit, or make metallic contact at all.

A clamp meter measures the vector sum of the currents flowing in all the conductors passing through the probe, which depends on the phase relationship of the currents.

Also described is the versatile 700 Series 200 Amp Clamp Meter that can be used as a tester, multimeter, or clamp meter.

Calibrates DMM's, Scopes, power supplies, decade boxes, voltage & current sources, clamp meters, analogue meters and RLC meters.

Interfaces are included for a variety of add-on options including clamp meters for high-current measurements, online power meter control and recording, A/D recorder output, and 'go/no-go' evaluation for production tests.

Less-expensive clamp meters use a rectifier circuit which actually reads mean current, but is calibrated to display the RMS current corresponding to the measured mean, giving a correct RMS reading only if the current is a sine wave.

Fluke's complete test and measurement line now includes digital multimeters, clamp meters, electrical testers, power quality analyzers, thermal imagers, insulation resistance testers, portable oscilloscopes, earth ground testers, infrared and contact thermometers, air quality meters, and vibration testers.

As electrical cables for equipment have both insulated conductors (and possibly an earth wire) bonded together, clamp meters are often used with what is essentially a short extension cord with the two conductors separated, so that the clamp can be placed around only one conductor of this extension.