Electrical Power & Protection

Portable earth tester

May 2014 Electrical Power & Protection

Megger’s DET4TC2 is a portable, lightweight device used for easy measurement of earthing. It is capable of performing 2, 3 and 4 point testing with variable frequency, attached rod technique, stakeless testing, leakage current and ground noise voltage measurements.

The DET4TC2 is simple to use, with an interface that is easy to understand. To switch between tests, the user simply turns the rotary dial to choose the required test type. The frequency of the test can then be chosen to switch between 94, 105, 111 and 128 Hz modes and can then change the overall voltage of the test procedure between 25/50 V. A button for activating a backlight on the LCD screen allows measurements to be seen in poor lighting conditions.

By use of ICLAMP, a Megger accessory which is sold separately, the Megger DET4TC2 is able to use ART, which allows electrode testing without connection and leakage current measurements. The VCLAMP accessory performs true stakeless measurements, ideal for areas where it is impossible to use driving stakes.

The overall resistance range of this device is between 0,01 Ω and 200 kΩ, the ground noise voltage range is between 1 and 100 V and ground current measurements are between 1 and 20 A. To maintain the accuracy of test results, the DET4TC2 also includes noise evaluation and rejection, and the device will automatically reject noise voltages of 40 V peak to peak to minimise the overall effect electrical noise can have on test results. This device is rated to 100 V CAT IV and is in compliance with IEC 61557-5.

For more information contact Stuart Ashton, Surgetek, +27 (0)11 792 1303, info@surgetek.co.za, www.surgetek.co.za

Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Transformer for special applications
July 2021, ASSTech Process Electronics + Instrumentation , Electrical Power & Protection
The Jumo IPC 300 was developed for the control of heating loads that previously required an additional transformer for power control.

ABB launches new MCB range
July 2021, ABB South Africa , Electrical Power & Protection
The circuit breaker industry sees the local launch of a high-quality product as ABB Electrification introduces its new range of 3 kA SR200T miniature circuit breakers.

The Pepperl+Fuchs M-LB-5000 surge protection system
June 2021, Pepperl+Fuchs , Electrical Power & Protection
Using the modular M-LB-5000 system with diagnostics eliminates extensive testing and operational interruptions. It is supplemented by the M-LB-2000 system for applications in which a minimum specification is sufficient.

Beckhoff expands power supply portfolio
June 2021, Beckhoff Automation , Electrical Power & Protection
Buffer and redundancy modules for 24/48 VDC power supply increase system availability.

Legrand’s new P17 Tempra Pro plugs
June 2021, Legrand , Electrical Power & Protection
New to Legrand’s range of plugs and sockets is the versatile P17 Tempra Pro range, which has been developed for safe installation in indoor and outdoor environments.

UPS series with One Cable Technology
April 2021, Beckhoff Automation , Electrical Power & Protection
Beckhoff’s new CU81xx UPS series is designed for universal use. Due above all to the flexible connection options extending up to One Cable Technology for uninterruptible power supply (UPS-OCT), the series ...

Flameproof switchgear for system protection
April 2021, Becker Mining South Africa , Electrical Power & Protection
Becker Mining South Africa’s Energy Distribution division manufactures customised switchgear, designed for the efficient distribution of electrical power.

Schneider Electric extends UPS range
April 2021, Schneider Electric South Africa , Electrical Power & Protection
Schneider Electric has announced the extension of Easy UPS 3L from 250 kVA to 600 kVA (400 V) with the addition of 250, 300, and 400 kVA UPSes for external batteries.

Complete Beckhoff system for power supply, protection and energy monitoring
April 2021, Beckhoff Automation , Electrical Power & Protection
Transparent energy data solutions increase machine efficiency and open up optimisation potential.

Schneider Electric redefines power distribution through digitalisation
March 2021, Schneider Electric South Africa , Electrical Power & Protection
Introducing MasterPact MTZ next generation low-voltage breaker with embedded Class 1 metering to save time and energy.