The Megger DET3TC 3-Terminal Ground Resistance Tester includes a current measuring function for ART (Attached Rod Technique) testing capabilities. With this added function, on-site grounds can be tested separately without having to remove the utility connection.

The complete kit of instrument, test leads, stakes, batteries and calibration certificate is delivered in a tough polypropylene carry case - everything you need to start testing in one package. Optional terminal adapters are available separately for acceptance of a variety of test leads.

The DET3TC is rated to IP54, making it a truly outdoor instrument. It is designed to meet stringent safety standards and is rated CAT IV 100V. The ground tester has been designed to be easy to use - a large selector switch makes selection of 2 or 3 pole tests easy with gloved hands - and the design makes the fitting of shorting links to perform 2-pole tests a thing of the past.

A large, clear, easy to read LCD and thumb-sized test button also makes the instrument particularly well suited to the outdoor conditions of ground testing. In addition to this ease of use feature, the ground tester automatically checks the connection and conditions of the P spike, C spike, and also the level of ground noise, indicating the status on the display.

The DET3TC tester also includes a voltmeter to enable measurement of ground voltage. It can measure resistance from 0.01 ohms to 2 kΩ. Also, to allow accurate testing in noisy environments, the instrument is capable of rejecting noise up to 40V peak to peak.

The Megger DET3TC ground tester is powered by eight AA batteries which are widely available and also give excellent testing time - the status of these batteries is given by a bar graph on the LCD, allowing the operator to decide when to change the batteries before they expire.

By using the optional MCC1010 (sold separately) with the DET3TC, the user can augment the traditional fall-of-potential measurement method with ART (Attached Rod Technique), which allows electrode testing without disconnection and also leakage current measurements down to 0.5 mA.