Megger DET2/3 Digital Earth Tester

The Megger DET2/3 is a ground resistance tester that is designed for measuring earth resistance in a variety of applications. Compared to the Megger DET3TD and DET3TC, the DET2/3 is a more advanced model with additional features and capabilities.

One of the key differences between the DET2/3 and the DET3TD/DET3TC is that the DET2/3 can measure earth resistance using both the two-terminal and three-terminal methods, while the DET3TD/DET3TC only uses the three-terminal method. This makes the DET2/3 more versatile and able to handle a wider range of testing scenarios.

The DET2/3 also has a wider measurement range than the DET3TD/DET3TC, with a range of 0.001 Ω to 20 kΩ, compared to 0.01 Ω to 2000 Ω for the DET3TD and 0.01 Ω to 200 Ω for the DET3TC. This makes the DET2/3 suitable for testing larger grounding systems with higher resistance values.

Product Info

Earth Resistance Range	0.001 Ω to 20.00 kΩ (auto-ranging), 1 mΩ resolution.
Accuracy (23°C ±2°C)	±0.5% of reading ±2 digits
Service Error	±5% of reading ±2 digits ±10 mΩ (meets VDE service error over 50 mΩ)
Comply with Standards	BS 7430 (Grounding)
	BS 62305 (Lightning)
	BS50122 (Railway)
	IEEE Standard 81
Test Frequency	10 to 200 Hz, Steps of 0.5 Hz
Test Current	50 mA max (selectable high and low levels)
Maximum Output Voltage	< 50 V r.m.s.
Maximum Interference	Typically 50 V peak-to-peak (50/60 Hz, sinusoidal nature)
Stakeless Resistance Measurement	0.01 Ω to 200 Ω, ±7 % accuracy, ±3 digits at 128Hz
Continuity	0.01 Ω to 1 kΩ (3 digits)
Continuity	12V, 205mA, <10 Ω
Leakage Current	0.00 A to 2.00 A, ±5% (±3 digits)

High resolution of 1 mΩ, ideal for large ground systems
Versatile test modes
High accuracy for ground electrode grid and soil resistivity tests
Rechargeable battery power that can last all day with a fast re-charge (up to 10 hours)
Robust instrument with IP65 protection
Automatic test frequency selection, with filters and high current features
Diagnostic trace display
Data storage - 900,000 points
Large color display that shows numeric and graphical results