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Digital earth tester - megger det 3/2
Digital Earth Tester - MEGGER DET 3/2
MEGGER DET 3/2 Digital Earth Tester Specifications
* Three- or four-terminal measurement selected by a switch
* 50 volt maximum output voltage for safety and convenience
* Direct-reading 31 2-digit L.C.D.
* Four ranges covering measurements from 0,01 W to 19,99 kW
The MEGGER DET3/2 Digital Earth Tester is a compact instrument designed to measure earth electrode resistance and soil resistivity. The instrument uses the four-terminal method of measurement, in which the resistance of the current circuit does not affect the reading. The instrument circuit has been designed so the resistance of the potential circuit also does not affect the measurement. Pressing a latchable button converts the instrument from its four-terminal measurement mode to a three-terminal one. The reversing d.c. test current has a frequency of 128 Hz, which avoids possible interference from other 50 and 60 Hz stray currents in the vicinity of the earth electrode under test. In the interests of safety, the maximum test voltage has been limited to 50 V. 05/06 JJ
Applications for the MEGGER DET 3/2 Digital Earth Tester
The MEGGER DET3/2 Digital Earth Tester is a reliable instrument, able to measure the earth resistance of both simple and complex electrode systems. They may be used to test in accordance with BS 7430 (1991), BS7671, the IEE wiring regulations, NFC15-100, IEC364 and German specification VDE 0413 Part 7 (1982). The instrument is suitable for soil resistivity measurements, which are used to establish the optimum earth electrode system design and location, to avoid expensive reworking of electrical installations. It is also suitable for performing archaeological and geological investigations.
The direct indication of excessive noise and high spike resistances avoids measurement errors, lengthy separate testing of these parameters and the need for high resistance ranges on the instruments. The direct, digital reading is unambiguous, avoids errors and assists in faster, more economic testing.
Earth testing kits, which include suitable test spikes and test leads, are available separately. Also available is the detailed publication A Simple Guide to Earth Testing which describes the various methods of earth testing.
This MEGGER DET3/2 Digital Earth Tester is surplus MOD stock and appears to be unused / as new. The current retail price for the MEGGER DET3/2 is 745 + VAT. To help clear our stock we are selling this Tester for only 449 40% off the retail price.
For full details and specification of the MEGGER DET 3/2 can be downloaded http:// /images/PDF/mg250302.pdf
