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Four-Terminal Ground Resistance Testers – Megger


The addition of a fourth terminal permits soil resistivity testing as well as more precise resistance (installed ground) measurements.

The new DET4TD2 offers the same features as the DET3TD, but with 4-terminal capability and a 20kohm upper resistance limit. The DET4TC2 increases this to 200kohm. The DET4TCR2 has rechargeable batteries that can be charged from the AC mains or a vehicle battery (with optional adapter). The DET4TC2 and DET4TCR2 offer 4 test frequencies for testing in noisy environments. Both models can be ordered with clamps to perform the stakeless test method, like a clamp style earth tester. A backlit LCD provides improved visibility in dark locations.

For testing in extreme electrical environments, the DET2/2 offers full autoranging, 0.001ohm resolution, adjustable test frequency and additional interference filtering. All DET3 and DET4 models are CAT IV 100V and IP54 rated. Test leads and carrying case are included.

Catalog Page 160                 Four-Term-Grnd-Res           DET23

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Item # Measurement Resistance Voltage (V) Gnd Current Power Source
DET4TR22/3/4 Term.0.01ohm - 20kohm0 - 100Rechargeable Battery
DET4TC22/3/4 Term.0.01ohm - 200kohm0 - 100Dry-Cell Battery
DET2/32/3/4 Term.0.010ohm - 20kohmRechargeable Battery
DET4TCR22/3/4 Term.0.01ohm - 200kohm0 - 100Rechargeable Battery
DET4TC2 +Clamps2/3/4 Term. + stakeless0.01ohm - 200kohm0 - 1000.5mA - 19.9ADry-Cell Battery
DET4TCR2 +Clamps2/3/4 Term. + stakeless0.01ohm - 200kohm0 - 1000.5mA - 19.9ARechargeable Battery
DET4TD22/3/4 Term.0.01ohm - 20kohm0 - 100Dry-Cell Battery
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