Megger DET4TCR2 4-Terminal Ground Resistance & Soil Resistivity Tester

Megger DET4TCR2 Overview

The Megger DET4TCR2 is the rechargeable version of Megger’s versatile 4-terminal earth tester for ground resistance and soil resistivity measurement. It supports 2-pole, 3-pole and 4-pole tests plus the Attached Rod Technique (ART) from 0.01 Ω to 200 kΩ, and stakeless clamp measurements from 0.01 Ω to 200 Ω. Fitted with NiMH cells and a built-in charger, it is ideal for utilities and contractors who need all-day field testing.

Who the Megger DET4TCR2 is for

The Megger DET4TCR2 suits earthing contractors and utility crews who run many electrode and soil resistivity tests a week and would rather recharge overnight than keep buying AA cells. It is the same four-terminal instrument as the DET4TC2, so methods and ranges match; only the power system changes, with NiMH cells charged inside the case from an external AC/DC adaptor.

Details from the DET4TC2 / DET4TCR2 datasheet (V09) worth checking before a survey:

• 2-, 3- and 4-pole readings hold 2% ±3 digits; ART is 5% and stakeless 7% (both ±3 digits)
• Automatic C-stake, P-stake and ground-noise checks run before a result is shown
• Backlit 3½-digit display for cable cellars and early-morning or evening work
• Meets IEC 61557-5, with a 25 V output for sites where local standards require it
• Optional 12 V vehicle socket charger (6220-375) lets crews top up between sites

See the full earth tester range or the Megger brand page. Prefer dry cells? The Megger DET4TC2 is the AA-alkaline twin. For staked tests without clamps there is the Megger DET4TR2, and the Megger DET3TD covers basic 2- and 3-pole checks. Extra-long cable reels for big grids are sold as Megger ETK earth test kits.

Megger DET4TCR2 Key Features

Why the rechargeable Megger DET4TCR2 suits crews who test every day:

• Rechargeable 8 × AA NiMH cells, charged inside the instrument from the supplied external AC/DC adaptor
• 2, 3 and 4-pole testing with no shorting links required
• Attached Rod Technique (ART) and fully stakeless testing with optional ICLAMP and VCLAMP
• 0.01 Ω to 200 kΩ in 2-, 3-, 4-pole and ART modes for electrodes and soil resistivity; stakeless readings cover 0.01–200 Ω
• Selectable ±25 V / ±50 V output and four test frequencies (94–128 Hz) to beat interference
• Rugged IP54 case, −15 °C to +55 °C operation

Megger DET4TCR2 Applications

The DET4TCR2 is used for earth-electrode commissioning, substation and lightning-protection ground testing, and Wenner soil resistivity surveys for grounding design. Its ART and stakeless methods let engineers test installed electrodes without disconnecting them, while rechargeable operation suits high-volume survey work.

What comes with the Megger DET4TCR2

Megger’s datasheet (V09) lists these items with the standard DET4TCR2, order code 1000-346:

• Megger DET4TCR2 earth resistance tester
• Stake and wire kit with 15 m, 10 m, 10 m and 3 m leads, plus right-angle terminal adaptors for bare wires
• 8 × AA NiMH rechargeable cells and the external AC/DC charger adaptor
• Hard carry case; the ICLAMP and VCLAMP needed for ART and stakeless work come in the 1000-366 “+ clamps” kit or as separate accessories

Megger DET4TCR2 vs DET4TC2

The DET4TCR2 is fitted with 8 × AA NiMH rechargeable cells and a built-in charger. If you prefer dry-cell operation, the Megger DET4TC2 is the identical instrument running on 8 × AA alkaline batteries.

Megger DET4TCR2 FAQ

Common questions from crews choosing the DET4TCR2:

• Can the standard kit do stakeless tests? Not on its own. ART needs the ICLAMP and stakeless tests need the ICLAMP plus the VCLAMP; both come in the 1000-366 “+ clamps” kit.
• What changes at the 25 V setting? The maximum stake resistance the DET4TCR2 accepts falls from 200 kΩ to 100 kΩ, while the 50 V setting keeps the full 200 kΩ limit.
• Do 2-pole tests need a shorting link? No. The selector handles 2-, 3- and 4-pole connections without links.
• Can it be charged in a vehicle? Yes, with Megger’s optional 12 V socket charger (6220-375); a spare AC/DC adaptor is 6280-370.

Why buy the Megger DET4TCR2 from MME in the UAE

MME (MOHAMMAD MAHDI Electronics Trading LLC), an authorized Megger representative in the UAE, helps earthing contractors decide between the standard DET4TCR2 kit and the clamp kit, and which spare leads or chargers make sense for their crews. Ask us for a quotation.