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Ground testing

Earth testing

Ground resistance testing covers the testing of earth electrodes and the measurement of soil resistivity. Megger offers top end systems for design and soil surveys as well as tough easy to use testers for field engineers. We have tried to make the testers self checking as much as we can, to allow you to concentrate on collating and understanding the results. The instrument requirements depend on the range of applications.

Capabilities DET4TCR2 DET4TC2 DET4TR2 DET4TD2 DET3TC DET3TD DET14C DET24C DET2/3
Test techniques available 4 pole resistivity test x x x x         Calculated
3 pole electrode  x x x x x x     x
4 pole electrode test with ART x x             x
2 pole bond test x x x x x x     x
Stakeless test x x         x x x
Power Rechargeable x x x           x
Warnings Dry cells   x   x x x x x  
Excessive noise x x x x x x     x
Potential spike resistance high x x x x x x     x
Current spike resistance high x x x x x x     x
Resistance range Resolution 0.01 Ω -
200 kΩ
0.01 Ω
0.01 Ω -
200 kΩ
0.01 Ω
0.01 Ω -
20 kΩ
0.01 Ω
0.01 Ω -
20 kΩ
0.01 Ω
0.01 Ω -
2.0 kΩ
0.01 Ω
0.01 Ω -
2.0 kΩ
0.01 Ω
0.05 Ω -
1.5 kΩ
0.01 Ω
0.05 Ω -
1.5 kΩ
0.01 Ω
0.01 Ω -
20.00 kΩ
Earth current range 0.5 mA to 35 A             x x 0.00 to 2.00 A
0.5 mA to 19.9 A x x     x      
Test frequency 94, 105, 94, 105, 128 Hz 128 Hz 128 Hz 128 Hz 1390 Hz 1390 Hz 10 to 200 Hz
111 and 111 and             0.5 steps
128 Hz 128 Hz              
Noise rejection 40 C peak to peak x x x x x x      
Test results storage             x x x
Downloadbale test results                x x
IEC61010-1 safety rating CAT IV CAT IV CAT IV CAT IV CAT IV CAT IV CAT IV CAT IV CAT IV
100 V 100 V 100 V 100 V 100 V 100 V 600 V 600 V 300 V
Weather and dust proof to IP54 IP54 IP55 IP56 IP57 IP58 IP59 IP60 IP61 IP62
Warranty upgradeable to 3 years FREE x x x x x x x x x
Power DB earth testing forms  x x x x         x