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Earth Leakage Clampmeter

DCM300E

 
  • DCM300E
  • Overview  
  • Application  
  • Downloads  
Overview
  • 0.01 mA resolution
  • EMC and IEC61010-2-032 compliance
  • 30 mA, 300 mA, 30 A and 300 A range

The DCM300E Earth Leakage Clamp designed primarily to check earth leakage currents with a dedicated 30 mA range providing resolution down to 10 µA. The capabilities of the DCM300E extend to measuring currents of up to 300 A ac, making it a highly versatile instrument capable of taking current measurements in a wide variety of situations and applications.

A typical application for the DCM300E would be the measurement of earth leakage current in a circuit where the RCD or GFCI repeatedly trips out. The measured result will quickly identify whether an excessive leakage current is causing the RCD or GFCI to trip, or if the RCD or GFCI itself is faulty. The DCM300E has 4 ranges: 30 mA, 300 mA, 30 A and 300 A with a best resolution of 0.01 mA. The analog-style bargraph of the DCM300E is very useful when monitoring changes, allowing the operator to easily interpret the rapidly changing bargraph rather than the digital display. Other key functions include the “Data Hold” feature which aids in measurements where there is a problem with accessibility or poor lighting, and the automatic power off feature that extends the battery life.

This clampmeter was also designed with safety in mind and exceeds the latest safety design standards IEC1010-2-32 and EMC requirements. Extra safety features have been designed into the DCM300E to provide a safer working environment for the user.

Application

A typical application for the clamp-meter would be the measurement of earth leakage current in a circuit where the RCD keeps tripping out. The measured result will quickly identify whether the earth leakage current present is excessive causing the RCD to trip, or that the RCD itself is faulty. Standing earth leakage can be the result of various undetected faults in the installation such as cable insulation deterioration, cable damage or the entry of moisture into areas where there are exposed terminals or fittings.

The instrument is pocket sized, light weight, rugged and easy to use, making it an ideal choice for the electrical industry.

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