Megger DET 2/2

The Megger® DET2/2 Auto Earth Tester is a robust
compact instrument designed for measuring earth
electrode resistance and soil resistivity. It uses the four
terminal method of measurement which eliminates the
resistance of the current circuit from the measurement.
The circuit design ensures that the resistance of the
potential circuit does not affect the measurement during
practical testing.
The instrument is microprocessor controlled and provides
a flexible, ‘user-friendly’ approach to earth testing by
giving good error detection capabilities and full test
information on a large easily readable alpha-numeric
display. A simple key pad can be used to adjust the test
frequency, the test current level and the filtering so that
adverse conditions influencing the test may be overcome.

• Accurately measures ground resistance under the most demanding conditions
• High resolution — 0.001 Ω with autoranging
• Simple menu-driven operation

The DET2/2 digital ground resistance tester provides a wide resistance range from 0.010 Ω to 19.99 kilohms for testing larger or more complex grounding systems and for difficult testing environments, with ±0.5% accuracy and 0.001 Ω resolution. Microprocessor control and advanced filtering simplify testing in environments with high levels of interference.

„ the noise interference in the soil passing the test current
is excessive.
„ the current test spike resistance is too high.
„ the potential test spike resistance is too high.
„ the battery needs recharging