When measuring soil resistivity and ground electrode resistance is crucial for large-scale earthing systems, the Megger DET2/3 High Resolution Earth Tester is a sophisticated instrument that should be used. With a maximum resolution of 1mΩ and an accuracy of ±0.5%, it features a single completely automated range that spans from 0.01Ω to 20kΩ. This tester satisfies IEEE Standard 81, BS-EN-62305 (lightning protection), BS-EN-50122-1 (railways), and BS7430 (earthing/grounding) requirements. It may be used for two-, three-, and four-pole testing. A number of characteristics make using the Megger DET2/3 for testing simpler. Errors can be detected by the onboard microprocessor, which can also display all relevant data on the screen. To assist preserve accuracy under challenging settings, the test frequency (10Hz to 200Hz) and current (<50mA) may be simply changed in addition to the filtering. The test current's broad frequency range and superb 0.5Hz resolution aid in isolating background noise from the tester's surroundings. Meanwhile, in order to conduct testing, automatic frequency selection will identify the frequencies with the lowest noise level. The earth tester stores the test current, frequency, and filtering in its internal memory for further use. In addition to numerous continuity measures and bonding tests, the Megger DET2/3 offers additional measurement possibilities such as stakeless resistance measurement (0.01Ω to 10kΩ), leakage current measurement (0.00A to 2.00A), and 3- and 4-pole ART resistance measurements (0.01Ω to 10kΩ). For this reason, the tester is an incredibly versatile tool that excels at complex earthing systems. In addition to giving a live trace of data with a graphical indication of the level of noise from the system under test, the Megger DET2/3 has a big colour display that clearly shows readings. There is sufficient room in the sizable internal memory for 5000 records with 900,000 data points and previously utilised test settings. A PC running PowerDBTM software can download data using the USB interface. Additionally, the Wenner and Schlumberger resistivity calculation methods are made easier by the enormous memory. The Megger DET2/3 is protected from the weather by a sturdy dual case construction. The device as a whole has an IP65 ingress protection rating, the harder outer layer providing impact protection, and the inner layer offering fire resistance. The rechargeable battery has a maximum capacity of ten hours and may be fully charged in three hours or quickly recharged to 50% capacity. It weighs only 4.5 kg and is certified Cat IV 300V. A charger, calibration verification instrument, carry strap, and a bag are included with the Megger DET2/3 Earth Tester when purchased as a standalone device; leads and clamps are not included. An upgrade to a 50- or 100-meter test set is also an option. These sets include with two 1.5-meter test leads, voltage and current clamps, four test spikes, and four test cables (50 and 30 or 100 and 60 metres).
- Two-, three-, and four-pole experiments
Measurement of resistance for 3- and 4-pole ART: 0.01Ω to 10kΩ
Ten-hour runtime
A 4.3-inch colour graphic display.
Quick-charging technology
readouts with high resolution (1 mΩ)
Because of dual-case protection, IP65 protection is rated.
Current leakage measurement: 0 to 2A
up to 900,000 data points and 5,000 entries in memory
0.01Ω to 20kΩ is the single, completely automated range.
0.01Ω to 10kΩ is the stakeless resistance measuring range.
Adequate for soil resistivity and ground electrode applications
PRODUCT SPECIFICATION:-
Pole Resistance Measurements at 2, 3, and 4:-
At 23 °C, the accuracy is ±0.5% while reading ±2 digits.
4-digit display is utilised.
Minus 50 V rms is the maximum output voltage.
50 V pk to pk is the maximum interference.
For spike resistances below 100 Ω, operational uncertainty is ±5% of reading ±2 digits ±10 mΩ (meets IEC61557 operational uncertainty standard for readings exceeding 10 mΩ). Otherwise, operational uncertainty is ±2% of reading, ±2 digits.
Automatic range: 0.001 Ω to 20.00 kΩ
IEEE Standard 81 and the following test standards are used: BS 7430 (grounding)
- BS 62305 (lightning)
- BS 50122 (railway).
10 Hz to 200 Hz in increments of 0.5 Hz is the test frequency.
50 mA maximum test current.
Measurements of the 3 and 4 pole ART (selective) resistance:-
±5% of reading ±3 digits at 23 °C ±2 °C is the accuracy.
Range: auto range from 0.01 Ω to 10.00 kΩ
Instrument details:-
AC power inputs: MCC1010, MVC1010
Up to ten hours of battery life
Recharge the battery quickly to 50% and fully charge it in three hours.
4.3-inch QWVGA colour illuminated display that may be viewed in daylight
Measuring 315 x 285 x 181 mm in length and width
USB 2.0 is used to download data to a PC.
Onboard 500 record storage offers 900,000 data points that may be downloaded in *.txt format for data storage.
Achieves IEC 61326 in EMC
IP54 operating (lid open), IP65 storage (lid closed) are the rankings.
CAT IV 300 V is the measurement grade.
Temperature range for operation: -10 to +40 °C
- maximum relative humidity of 90% at +40 °C
Energy source: 12–18 V, 65 W DC supply externally attached, or internal Li-ion battery
To calculate resistivity: PE = π b (b+a) R/a for Wenner and 2 π a RW for Schlumberger.
Certainly, RoHS compliant
Secondary measurement display: Voltage, current, and noise
Respects IEC 61010 for safety
-20 to +60 °C is the storage temperature.
USB type A: Downloading data to a USB drive
USB type B: Computer data download
4.5 kg in weight
Circuit leakage-
3.-digit accuracy, or ±5%
0.00 A to 2.00 A is the range.
Calculating Stakeless Resistance:-
Three digits and a percentage accuracy of ±7%
In between 0.01 and 200 Ω
- Self-calibrating automatically
Range finding automatically
(Configurable) Auto Power Off
LCD backlighting
For peace of mind, a calibration check loop
improved access with an elliptical clamp form
With a CAT IV 600V safety rating, the first Earth Resistance Clamp Tester
Hold feature for hard-to-reach installations
Low and high alert levels
a strong signal of noise that could affect readings
50 mm for earth straps and up to 37 mm for earth cables in terms of jaw size
Ground Resistance is measured between 0.05Ω and 1500Ω.
Measures the current of True RMS Ground Leakage between 0.5mA and 35A.
memory and transfer files to the Megger Download Manager
safeguarded over current
Test results are stored on-board.
Complete kit is included in a sturdy carry box.
Data output from USB using a separate pluggable interface
Jaws open alert to guarantee precision
