The CEM DT-9399 is a clamp-on earth resistance and leakage-current tester for checking grounding systems without disconnecting the earth conductor or installing auxiliary stakes. It is suited to substations, industrial plants, telecom sites, lightning-protection systems and solar installations.
Key Features
- Earth resistance range: 0.025 Ω to 1500 Ω
- Resolution down to 0.001 Ω
- True-RMS AC leakage-current measurement from 4 mA to 40 A
- Clamp-on measurement without disconnecting the grounding system
- Selectable filtering for improved measurement in electrically noisy environments
- Memory for up to 32,760 measurements
- Bluetooth app connectivity for data transfer and reporting
- TFT colour display
- IP54 protection
- CAT IV 600 V / CAT III 1000 V
Applications
- Electrical substations and industrial plants
- Telecommunications towers and data centres
- Lightning protection systems
- Solar PV grounding
- Grounding-system maintenance and fault finding
Model: CEM DT-9399
Specifications
| Specification | Details |
|---|---|
| Earth resistance range | 0.025 Ω to 1500 Ω |
| Best resolution | 0.001 Ω |
| AC leakage current | 4 mA to 40 A, True RMS |
| Data logging | Up to 32,760 measurements |
| Wireless connectivity | Bluetooth app |
| Display | TFT colour display |
| Ingress protection | IP54 |
| Safety rating | IEC/EN 61010-2-032, CAT IV 600 V / CAT III 1000 V |