Megger DET2/3 KIT 330FT - Ground Tester, (100 m) Kit

High accuracy earth (ground) measurements

The DET2/3 provides accurate 1 mΩ resolution measurements of ground electrode resistance.

With its microprocessor-controlled system, it provides a flexible and ‘user-friendly’ approach to ground tests by the provision of excellent error detection capabilities and full test information shown on a large color display.

Test frequency, test current, and filtering can be quickly and easily adjusted so that adverse conditions, which can influence the test, can be overcome.

A wide band of test current frequencies, with a resolution of 0.5 Hz, can be used to eliminate errors caused by noise in the ground.

The DET2/3 also includes an automatic frequency selection feature that scans for frequencies with the lowest noise level and then runs a test at that frequency. The selected test current frequency, test current level, and the increased filtering option are stored in memory for use in subsequent tests.

Most Common Test Method

Fall of Potential Test

• For measuring resistance between an installed system and the soil
• Auxiliary current probe must be placed far outside zone of influence
• Several readings are taken to build the graph and determine the true resistance

Earth Testing at a Glance

• Many test methods to:
  • Characterize soil
  • Check resistance between a system & soil
• All tests must set:
  • Test signal power (V & I)
  • Test signal frequency
• Test Frequency setting is a balance between avoiding noise and getting good soil penetration

Installed Earth System

• Systems must be checked regularly
• Large systems must have very low resistances < 90mΩ
• Noisy readings are common in built up areas

Meet the DET2/3

DET2/3 Front Panel