Megger DET2-3 Advanced Earth Ground Tester 1008-942

Product Code: MEG1008-942

Price

£3999.00 ex. VAT £4798.80 inc. VAT

Available In 3-7 Days

The Megger® DET2/3 automatic earth (ground) test instrument is robust, compact and designed to measure earth Electrode Resistance and Soil Resistivity. 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 is a reliable instrument for use 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 / grounding), BS-EN-62305 (Lightning Protection), IEEE Standard 81 and Railway Applications. Soil Resistivity measurements are used to establish the optimum electrode design and site, as well as archaeological and geological investigations.

Key Features:

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 f ilters and high current features
Diagnostic trace display Data storage
Large colour display that shows numeric and graphical results

MEG1008-942_User-guide.pdf MEG1008-942_Datasheet.pdf

The DET2/3 high resolution earth tester is a robust and compact automatic earth) test instrument designed to measure earth electrode resistance and soil resistivity. For use 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.

Test frequency, test current, and filtering can be quickly and easily adjusted so that adverse conditions, which can influence the test, can be overcome, and a wide band of test current frequencies, with a resolution of 0.5 Hz, can be used to eliminate errors caused by noise in the earth.

With its microprocessor controlled system it provides a flexible and ‘user-friendly’ approach to earth/ground tests by the provision of excellent error detection capabilities and full test information shown on a large colour display. The DET2/3 can provide a live trace of its measurements, which graphically shows the amount of noise from the system under test - a powerful diagnostic tool for the expert earth/ground test engineer.

The DET2/3 also includes an automatic frequency selection feature that scans for frequencies with the lowest noise level and then runs a test at that frequency. The selected test current frequency, test current level, and the increased filtering option are stored in memory for use in subsequent tests.

Use of the latest processors and a large internal memory allows for immediate calculations of resistivity (Wenner or Schlumberger method) and the ability to save a complete days’ worth of test results. Test result data can be downloaded directly through a USB drive or straight to a Windows PC running PowerDB™ software.

Trace display and data storage

Utilising the latest processors, the DET2/3 can provide a live trace of its measurements, which graphically shows the amount of noise from the system under test – a powerful diagnostic tool for the expert earth (ground) test engineer. Use of the latest processors and a large internal memory allows for immediate calculations of resistivity (Wenner or Schlumberger method) and the ability to save a complete day’s worth of test results. Test result data can be downloaded directly through a USB flash drive or straight to a Windows PC running PowerDB™ software.

Weatherproof and rugged

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 case is made of a tough and light copolymer polypropylene, which can withstand the rough and tumble of outdoor use.

Portable power

An internal Li-ion battery provides for a full day of tests. The Li-ion battery has a fast recharge facility that allows a flat battery to provide an afternoon of tests, if charged during a lunch break. The DET2/3 can also operate from a standard 12 V DC battery supply.

Comes Complete With:

MCC1010 and MVC1010

For Stakeless tests
For ART tests

Cable reels with spike

Sturdy handle and a smooth unwind and wind action
Cable ‘feed through’ 20 m, 30 m, 50 m, 60 m or 100 m cables
Attachable 25 cm (10”) earth spike Spike can be hammered into the ground
Unique daisy-chain feature to create longer lengths

Continuity test cables and clips

1.4 m cables
2 wire connection cable
Crocodile clips
Probes

Accessories bag

Holds a full suite of accessories
Water resistant
Toughened bottom for outdoor use

Technical Specification:

2, 3 and 4 pole resistance measurements
Range	0.001 Ω to 20.00 kΩ auto range
Display	Four digit display
Accuracy	at 23 °C
	±0.5% of reading ±2 digits
	3P: ±10 mΩ
	2P: ±20 mΩ
Operational uncertainty	±2% of reading, ±2 digits (meets IEC61557 operational uncertainty requirement with readings over 10 mΩ) when spike resistances are below 100 Ω
Operational uncertainty	±5% of reading, ±2 digits ±10 mΩ (meets IEC61557 operational uncertainty requirement with readings over 50 mΩ)
Test standards	BS 7430 (Earthing)
	BS 62305 (Lightning)
	BS EN50122 (Railway)
	IEEE Standard 81
Test frequency 2P, 3P & 4P resistivity	10 Hz to 200 Hz in steps of 0.5 Hz
Test frequency dual clamp, 3p ART & 4P ART	70 Hz to 200 Hz (steps of 0.5 Hz)
Test current	50 mA max
Maximum output voltage	Less than 50 V rms
Maximum interference	Up to 50 V pk to pk
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
Continuity
Range	0.01 Ω to 1 kΩ (3 digits)
Accuracy	±3% (±2 digits)
Test Current	Up to 205 mA
Lead Null	< 10 Ω
Leakage Current
Range	0.00 A to 2.00 A
Accuracy	±5% (±3 digits)
Instrument Specifications
Display	5.25-inch QWVGA, daylight viewable backlit colour
Operating temperature and humidity	-10 to 40 °C
Operating temperature and humidity	90% RH max at 40 °C
Storage temperature	-20 to 60 °C
Temperature coefficient	< ±0.1% per °C over operating temp
Altitude	Up to 2000 m above sea-level.
IP rating	IP54 operational (lid open)
IP rating	IP65 storage (lid closed)
Measurement rating	CAT IV 300 V
Measurement output rating	±50 V 1 A, ac or dc
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%
Ambient temperature (battery charge)	0 - 40 ºC
Safety	Meets IEC 61010
EMC	Meets IEC 61326
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)
Data download	To PC through USB 2.0
Data storage	On board 500 record storage downloadable as *.txt
USB type A	Data download to USB drive
USB type B	Data download to PC
Secondary measurement display	Noise, voltage and current
Resistivity calculation	Wenner: PE = 2 π a RW Schlumberger: PE = π b (b+a) R / a
Test modes	Internally set 2P, 3P, ART (Selective), 4P, Stakeless (clamp) modes
Aux inputs	MCC1010, MVC1010
RoHS compliant	Yes