Earth Testing Kit · Test & Measurement
ERT‑10
Handheld earth resistance tester for commissioning and maintenance of earthing systems — supports 2‑wire and 3‑wire testing with large backlit display.
2‑wire / 3‑wire
3 mA test current
Earth voltage (0–200 V)
Data Hold & Auto Power Off
Hands‑free switch
Large backlit LCD
Rugged carry case
Key features
2‑wire / 3‑wire methods
Precise 3‑wire and simplified 2‑wire testing for different site conditions.
Large backlit LCD
3½‑digit display with backlight for clear readings in low light.
3 mA measuring current
Tests earth resistance without tripping RCD/leakage breakers.
Hands‑free switch
Continuous measurements for quick surveys and repeatability.
Data Hold & Auto Power Off
Capture readings, conserve battery life; low battery indicator.
Rugged field kit
Compact, light‑weight instrument supplied with carry bag and accessories.
Where the ERT-10 excels
Grounding verification
Check earthing of buildings, panels, generators and lightning systems.
Commissioning & periodic inspection
Document baseline readings and compare over time for compliance.
Troubleshooting
Find high‑impedance paths and poor connections in grounding systems.
Site checks
Fast checks before and after maintenance work.
Ranges & key specifications
| Function | Range | Accuracy | Resolution | Test current | Test freq. | Method |
|---|---|---|---|---|---|---|
| Earth resistance | 20 Ω | ±(2.0% + 0.1 Ω) | 0.01 Ω | ≈ 3 mA | ≈ 820 Hz | Precise 3‑wire |
| 200 Ω | ±(2.0% + 3 dgt) | 0.1 Ω | ≈ 2 mA | — | Precise 3‑wire | |
| 2000 Ω | ±(2.0% + 3 dgt) | 1 Ω | ≈ 1 mA | — | Precise 3‑wire | |
| 2000 Ω | ±(2.0% + 5 dgt) | 1 Ω | ≈ 1 mA | — | Simplified 2‑wire | |
| Earth voltage | 0 – 200 V | ±(1.0% + 5 dgt) | 0.1 V | — | — | — |
See datasheet for full specifications and conditions.
Accessories
Standard accessories
- 15 m red wire (1 pc)
- 10 m yellow wire (1 pc)
- 5 m green wire (1 pc)
- Auxiliary earth spikes (2 pcs)
- Instruction manual
- 6 × AA batteries or 9 V DC adaptor
- Carrying bag
Safety & Compliance
IEC
Designed, manufactured and tested according to IEC 61010‑1
CAT
Measurement Category CAT III 600 V
Downloads
Datasheet (PDF)
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