Measures ground resistance from 0.05Ω to 1500Ω and true rms ground leakage current from 0.5mA to 35A, delivering exceptionally high testing accuracy.
The elliptical clamp shape ensures easy access to earth cables and straps. The clamp accommodates cables up to 37mm in diameter and flat earth tapes up to 50mm, ideal for power stations, substations, and transmission towers.
Equipped with automatic self-calibration and automatic ranging capability to significantly simplify the overall field operation process.
Flat core end design prevents dirt build-up to maintain measurement integrity, while a built-in filter function improves noise immunity in highly electrical environments.
Features a CAT IV 600V safety rating along with built-in over-current protection and jaw-open warnings to maximize operator safety.
On-board memory holds up to 256 records complete with serial numbers, times, and dates, readable on a backlit LCD display for dark conditions.
| Specification | Details |
|---|---|
| Measurement Range | |
| Ground Resistance | 0.05Ω - 1500Ω |
| Earth Leakage Current | 0.5mA - 35A |
| Resolution | |
| Ground Resistance | 0.01Ω (0.05Ω - 0.99Ω); 0.1Ω (1.00Ω - 99.9Ω); 1Ω (100.0Ω - 400Ω); 10Ω (400Ω - 1500Ω) |
| Earth Leakage Current | 0.01mA (0.5mA - 0.99mA); 0.1mA (1.00mA - 9.99mA); 1mA (10.0mA - 99.9mA); 0.01A (100mA - 999mA); 0.1A (1.00A - 35.0A) |
| Accuracy | |
| Ground Resistance | Varies with range, e.g., ±1.5% ± 0.05Ω (1.00mA - 9.99mA) |
| Earth Leakage Current | ±2% ± 0.05mA (0.5mA - 0.99mA) |
| General System Specs | |
| Test Frequency | 1390Hz |
| Safety Rating | CAT IV 600V |
| Display | Backlit LCD |
| Data Storage | 256 records |
| Power Supply | 4 x 1.5V IEC LR6 (AA) batteries |
| Dimensions | 248mm x 114mm x 49mm |
| Weight | 985g |
| IP Rating | IP30 |
| Models | Megger DET14C Digital earth clamp testers |
|---|---|
| Key Features |
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Megger Ground Resistance Tester DET14C datasheet.pdf