Earth Ground Tester rental:

The Megger® DET2/2 Auto Earth Tester (ground bond and ground resistance 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, and is ideal for earth resistance testing of communications installations and industrial applications. 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. The display indicates if:

• 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.

Because these factors are indicated directly, the whole testing procedure is accomplished easily and more rapidly. A wide band of test current frequencies, with a resolution of 0.5 Hz, may be used to eliminate errors caused by noise in the earth. The chosen test current frequency, test current level and the increased filtering option are stored in memory for use in subsequent tests.

Features:

• High resolution of 1mΩ; ideal for large earthing systems
• High accuracy for earth electrode and soil resistivity testing
• Test voltage 50 V max. for safety
• Rechargeable battery power with long battery life and rapid re-charge
• A robust, versatile instrument with IP54 protection
• Filter and high current features to enable valid earth testing in difficult situations
• Testing in accordance with BS 7430 (1991), the IEE Wiring Regulations and VDE 0413 part 7 (1982).

Supplied with:

• User Guide
• Earth resistance testing Application Note
• 4 Terminal earth testing kit with Qty 4 x earth stakes & mallet
• Handheld winder with 30m and 3m dual cables
• Handheld winder with 50m and 3m dual cables
• NATA Calibration Certificate copy
• 240 Volt IEC mains lead
• Hard Carry Case
• Transit case