The Megger DET2/3 automatic earth test instrument is designed to measure earth Electrode Resistance and Soil Resistivity, with highly accurate results. It provides a full range of test methods and excels at the four terminal method of measurement, which eliminates the resistance of the current circuit from the measurement.
The DET2/3 can be used on large or more complex earth systems, which include communications earth systems and difficult test environments. It can be used to test in accordance with BS 7430 (Earthing), BS-EN-62305 (Lightning Protection), BS-EN-50122-1 (Railway Applications) and IEEE Standard 81.
The DET2/3 can be used in agricultural locations (as per IEC 61557-5) where, to comply with the standard, the output voltage must be set to 15 V. It can also set to 15 V when risk assessment determines that a 50 V test voltage is too high.
The DET2/3 is sealed to IP54 standard, which provides weatherproofing during operation (case lid open). When the case lid is closed its protection standard is to IP65 (water and dust damage). The DET2/3 is powered by an internal rechargeable battery which has a long usage period. The battery is recharged with an external power supply unit.
High resolution of 1 mΩ, ideal for large earth (ground) systems.
Versatile test modes.
High accuracy for earth (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.
Large colour display that shows numeric and graphical results.
|2, 3 and 4 pole resistance measurements|
|Range||0.001 Ω to 20.00 kΩ auto range.|
|Display||Four digit display.|
at 23 °C ±2 °C
±0.5% of reading ±2 digits.
|Test standards||BS 7430 (Earthing)
BS 62305 (Lightning)
BS EN50122 (Railway)
IEEE Standard 81.
|Test frequency||10 Hz to 200 Hz in steps of 0.5 Hz.|
|Test current||50 mA max.|
|Max. output voltage||Less than 50 V rms.|
|Maximum interference||Up to 50 V pk to pk.|
|Temperature coefficient||< ±0.1% per °C over operating temp.|
|3 and 4 pole ART (selective) resistance measurements|
|Range||0.01 Ω to 10.00 kΩ Auto range.|
|Accuracy||±5% of reading ±3 digits at 23 °C ±2 °C.|
|Stakeless resistance measurement|
|Range||0.01 Ω to 200 Ω.|
|Accuracy||±7% accuracy, ±3 digits.|
|Range||0.00 A to 2.00 A.|
|Accuracy||±5% (±3 digits).|
|Display||4.3 inch QWVGA, daylight viewable backlit colour.|
|Operating temperature||-10 to 40 °C.|
|Storage temperature||-20 to 60 °C.|
||IP54 operational (lid open)
IP65 storage (lid closed).
|Measurement rating||CAT IV 300 V.|
|Power supply||Internal Li-ion battery or external 12-18 V, 65 W, DC supply.|
|Battery life||Up to 10 hrs use.|
|Battery charging time||Fast recharge to 50%, 3 hrs for 100%.|
|Safety||Meets IEC 61010.|
|EMC||Meets IEC 61326.|
|Data storage||On board 500 record storage downloadable as *.txt.|
|Dimensions||L 315 x W 285 x H 181 mm (12.4 x 11.2 x 7.1 in).|
|Weight||4.5 kg (9.9 lb).|
|Megger DET2/3 warranty||2 year, conditional upon registering.|
£ 303 £ 379
£ 472 £ 555
£ 523 £ 615
£ 3,105 £ 3,450
£ 940 £ 1,175
£ 1,550 £ 1,937
£ 1,504 £ 1,880
£ 2,190 £ 2,737
|COMPONENT PARTS||DESCRIPTION||PART No.|
|166X-MTC-UK||Mains test cord, UK.||4601070|
|DMS COMP||DMS Complete, Installation & PAT Software.||4718790|
|ES165X||Eath Spike Test Kit.||2104706|