Megger DCM305E - Earth Leakage Clamp Meter

Megger DCM305E - Earth Leakage Clampmeter 0.001 mA resolution Up to 100 A AC TRMS reading Low pass filter to aid stability of readings Auto, data & peak hold 40 mm jawThe DCM305E is designed to check earth leakage currents; however the upper range enables TRMS AC current measurements of up to 100 A.

TRMS meters can measure both pure, undistorted, sinusoidal AC waveforms and non-sinusoidal AC waveforms which can contain pulse trains, triangles, spikes and other ragged waves.The instrument has six ranges: 6 mA, 60 mA, 600 mA, 6 A, 60 A, 100 A with a minimum resolution of 0.001 mA on the 6 mA range.

Either auto or manual ranging can be selected.Harmonics / electrical noise on the cables / circuit under test can give rise to incorrect readings so the DCM305E features a low pass filter (50/60 Hz) which vastly improves measurements on these particular circuits.A compare function is also featured which has 3 pre-set leakage limits (0.25, 0.50, 3.5 mA) which when selected offers a visual indication and audible warning when the pre-set limit is exceeded.For those hard to read measurements, where accessibility is a problem, auto hold and data hold features have been incorporated to aid measurements.

A peak hold option is also featured on this instrument.An auto-backlight also aids easy viewing of the 6000 count display.The 40 mm jaw has been designed to allow measurements on both insulated and non-insulated conductors.Safety has been enhanced with inclusion of a tactile hand barrier / hand guard in the instrument case design.To save battery life an automatic power off feature will switch the clamp off if no readings have been made during a 20 minute period.The instrument is pocket sized, light weight, rugged and easy to use, making it an ideal choice for the electrical industry.ApplicationsA typical application for the DCM305E would be a measurement of earth leakage cur