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Hand-held clamp meter with grey and yellow body, 32 mm jaw opening, digital display and six-button panel

ETCR

ETCR 2100A+ Digital Clamp Ground Resistance Tester 0.01-200

SKU CH-CKEX-9711G

Clamp-on tester measures loop ground resistance from 0.01 to 200 without disconnecting leads, storing 99 readings

  • Measures ground loops without disconnecting leads or auxiliary electrodes
  • Detects ground faults traditional methods miss for safer troubleshooting
  • Wide 0.010-200 measurement range with 0.001 resolution for precise readings
  • Stores up to 99 test records for later review and reporting
  • 32 mm clamp jaw fits a variety of conductor sizes

Clamp Ground Resistance Tester

The ETCR 2100A+ measures grounding resistance from .010 to 200 ohms without disconnecting leads or driving auxiliary electrodes. It clamps around conductors up to 32 mm and stores up to 99 readings for later review. Electrical technicians in power, telecom, oilfield and construction sites use it for fast loop-system checks.

Loop Measurement Only

The instrument works exclusively on closed grounding loops and cannot measure single-point electrodes. An artificial loop must be created near the electrode when no natural loop exists. Resolution reaches .001 ohm at the low end, but accuracy depends on loop integrity and signal interference, which the tester flags with audible and visual alarms.

Replaces Fall-of-Potential Method

This clamp meter replaces traditional fall-of-potential kits that require lead disconnection, probe placement and lengthy setup. The jump is worth it when downtime must be minimised, access to auxiliary electrode positions is limited, or hidden ground faults need detection. It is not for users who only test isolated earth rods without a return path.

Highlights

  • Measures ground loops without disconnecting leads or auxiliary electrodes
  • Detects ground faults traditional methods miss for safer troubleshooting
  • Wide 0.010-200 measurement range with 0.001 resolution for precise readings
  • Stores up to 99 test records for later review and reporting
  • 32 mm clamp jaw fits a variety of conductor sizes

Specifications

Part NumberETCR2100A+

Questions about this item

Should I choose the 0.01 Ω resolution or the 200 Ω upper limit for my application?

The tester covers the full span from 0.010 Ω up to 200 Ω in one instrument, so you do not select between versions — the single range handles both low-resistance loops and higher-resistance grounds.

What does the 0.01–200 Ω range mean when I clamp onto a live grounding loop?

It means the clamp can read loop resistance as low as 0.010 Ω with 0.001 Ω resolution and as high as 200 Ω, giving you the combined resistance of the grounding body and lead without breaking the circuit.

How does the 32 mm clamp jaw limit what I can test?

The 32 mm jaw opening sets the maximum conductor diameter you can encircle; any grounding lead or busbar thicker than that will not fit, so verify cable size before purchasing.

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