GENERAL DESCRIPTION
The Megger DET family of test instruments offers a unique solution to the measurement of earth or ground electrode (rod)
resistance and soil resistivity. The family has seven variants supporting 2, 3 and 4-wire measurements.
The DET3TA provides 2 and 3-wire measurements and offers an analogue display.
The DET3TC and DET3TD provide 2 and 3-wire measurements and offer a digital display.
The DET4TD2, DET4TR2, DET4TC2 and DET4TCR2 provide 2, 3 and 4-wire measurement and offer a digital display.
The DET4TR2 and DET4TCR2 provide a rechargeable battery power source.
The DET4TC2 and DET4TCR2 offer variable frequency testing (94 Hz, 105 Hz, 111 Hz and 128 Hz) and
measurement to 200 kΩ).
The DET3TC, DET4TC2 and DET4TCR2 can use an optional current clamp (MCC CLAMP) to measure conductor current and
electrode (rod) resistance without disconnection, leaving the installation earthing system intact (Attached Rod Technique,
ART).
Additionally, the DET4TC2 and DET4TCR2 can drive an optional voltage-inducing clamp (MVC CLAMP) which, in conjunction
with the MCC CLAMP, can be used to make stakeless measurements of the earthing system.
