Megger DET4TC2 –4-TERMINAL GROUND RESISTANCE AND SOIL RESISTIVITY TESTER

The DET4TC2 from Megger is a compact, lightweight instrument for measuring earthing. It can do 2, 3, and 4-point testing with variable frequency, attached rod technique (with optional clamp available separately), stateless testing (via optional clamp again), leakage current, and ground noise voltage measurements.

The DET4TC2 is straightforward to operate and has an easy-to-understand interface. To switch between tests, simply turn the rotary dial to the desired test type. The frequency of the test can then be selected using the Hz to switch between 94, 105, 111, and 128Hz modes, and the overall voltage of the test procedure can be changed between 25/50V. There’s also a button for turning on the LCD screen’s backlight, which allows you to view your measurements even in low-light situations. After that, simply push the test button to start the test and obtain readings.

The Megger DET4TC2 can use ART by using ICLAMP (a separate accessory Megger), which permits electrode testing without connection and leakage current measurements. You can also utilise the VCLAMP attachment (available separately) to do genuine stakeless measurements, which are perfect for areas where driving stakes are not possible.

This tester has an overall resistance range of 0.01 to 200k, a ground noise voltage range of 1V to 100V, and a ground current measuring range of 1mA to 20A. The DET4TC2 contains noise evaluation and rejection to help maintain the accuracy of test findings, and the device will automatically reject noise voltages of 40V peak to peak to limit the total influence electrical noise can have on test results.

For more information and to view other EARTH RESISTANCE TESTER models, such as the Megger DET4TR2-4, please click on the appropriate link

Megger DET4TC2- 4-TERMINAL GROUND RESISTANCE AND SOIL RESISTIVITY TESTER specifications:

• Ingress protection: IP54
• C stake, P stake and Noise check: Automatic
• Noise rejection: 40 V pk to pk
• 2-wire, 3-wire, 4-wire test: Yes, no shorting links required
• No disconnect testing (ART): Yes, with ICLAMP
• Stakeless measurement: Yes, with ICLAMP and VCLAMP

Instrument output

• Voltage: ±25 V or ±50 V at 94 Hz, 105 Hz, 111 Hz and 128 Hz
• Current: 4.5 mA or 0.45 mA or 0.045 mA
• Ground current range with clamp: 0.5 mA to 19.9 A
• Ground current accuracy: 5% ±3 digits
• Ground voltage range: 0 to 100 V ac
• Ground voltage accuracy: 2% ±2 V

Resistance ranges

• 2, 3, 4 pole: 0.01 Ω to 200 kΩ
• ART: 0.01 Ω to 200 kΩ
• Stakeless: 0.01 Ω to 200 Ω

Resistance accuracy

• 2P measurements: 2% ±3 digits
• 3P measurements: 2% ±3 digits
• 4P measurements: 2% ±3 digits
• ART measurements: 5% ±3 digits
• Stakeless measurements: 7% ±3 digits

Maximum probe resistance

• Rp limit: 200 kΩ (50 V output voltage)
• Rc limit: 200 kΩ (50 V output voltage)
• Limits reduced to 100 kΩ for 25 V output voltage
• Limits reduced to 5 kΩ for 0.01 Ω resolution

• Display: 3.5” digit high contrast liquid crystal, backlit
• Battery type: DET4TC2: 8 off AA (LR6) cells
• Operating temperature range: -15 °C to +55 °C / 5 °F to 131 °F
• Storage temperature range: -40 °C to +70 °C / -40 °F to 158 °F

Safety

• Complies with the requirements of IEC61010-1 100V CAT IV between terminal pairs.*

EMC

• In accordance with IEC61326-1

Standards Compliance

• Complies with the requirements of KEMA K85B
• Complies with the following parts of EN61557, “Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. – Equipment for testing, measuring or monitoring of protective measures”.
• Part 1 – General requirements
• Part 5 – Resistance to earth
• Dimensions: 203 mm x 148 mm x 78 mm (8 in x 5.8 in x 3 in)
• Weight: 1kg (2.2lb)