Digital Clamp Meters

A clamp meter is an electrical test tool that combines a basic digital multimeter with a current sensor.Clamps measure current. Probes measure voltage. Having a hinged jaw integrated into an electrical meter allows technicians to clamp the jaws around a wire, cable or other conductor at any point in an electrical system, then measure current in that circuit without disconnecting/deenergizing it.

Beneath their plastic moldings, hard jaws consist of ferrite iron and are engineered to detect, concentrate and measure the magnetic field being generated by current as it flows through a conductor.

-Current-sensing jaw.
-Tactile barrier (to protect fingers from shocks).
-Hold button: Freezes the display reading. Reading is released when button is pushed a second time.
-Dial (aka rotary switch).
-Display.
-Backlight button.
-Min Max button: On first push, display shows maximum input. On subsequent pushes, minimum and average inputs are shown. Works in current, voltage and frequency modes.
-Inrush current button.
-Zero button (yellow): Removes dc offset from dc current measurements. Also serves as dial’s shift button to select yellow functions scattered around the dial.
-Jaw release lever.
-Alignment marks: To meet accuracy specifications, a conductor must be aligned with these marks.
-Common input jack.
-Volts/ohm input jack.
-Input for flexible current probe.