Easy approach to measuring earth resistance

With the introduction of Megger's new DET10C and DET20C earth resistance testers, measuring earth resistance is no longer a time-consuming and complicated task.

With the introduction of Megger's new DET10C and DET20C earth resistance testers, measuring earth resistance is no longer a time-consuming and complicated task.

The new instruments, which provide results in just a few seconds, not only make it unnecessary to disconnect earth electrodes before making measurements, but also eliminate the use of temporary earth spikes.

Designed principally for routine checking of earth resistances in multi-earth installations, the instrument features a clamp-type connection with an internal diameter of 35mm, making it suitable for use with even the largest earth stakes.

To measure the resistance of a particular stake, the user simply clamps the head of the instrument over it, and reads the result from the instrument's large digital display - no specialist skills are required.

Both the DET10C and DET20C are approved for use in Category III, 300V applications, as defined in IEC61010-1, making them suitable and safe to use in virtually all domestic, commercial and industrial installations.

For added versatility, the instruments also offer current and resistance ranges for general-purpose use.

While Megger's new DET10C and DET20C earth resistance testers provide the same testing facilities, the DET20C additionally offers an audible limit alarm to alert the user to test results that are outside a user-adjustable acceptance range.

The DET20C also has an internal memory system, which stores test results for later downloading to use, for example, in test reports and certificates.

Megger's new earth resistance testers feature a compact ergonomic design which combines portability and ease of handling with the ability to withstand the knocks and scrapes of everyday use.

In addition, the testers can be powered from standard or rechargeable batteries.

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