Description
Megger DCM305E TRMS Earth Leakage Clamp Meter
This Megger DCM305E TRMS Earth Leakage Clamp Meter is ideal for measuring the earth leakage current in a circuit where the RCD is tripping out. The clamp meter will quickly determine if the earth leakage current is causing the RCD to trip, or if it is sensitive or faulty.
The DCM305E features a 40mm jaw and is capable of measuring both insulated and non-insulated conductors. The megger clamp meter also enables TRMS AC current measurements up to 100A and measures pure, undistorted, sinusoidal, and non-sinusoidal AC waveforms which contain pulse trains, triangles, spikes and ragged waves.
Technical Specs
| Display | 6000 count | ||
| Measuring Function | TRMS Leakage current and load current | ||
| Ranges | 6.000 mA / 60.00 mA / 600.00 mA / 6.000 A / 60.00 A / 100.0 A | ||
| Basic Accuracy | ± (1.0 % 3d) | ||
| AC Current | Range | Resolution | Accuracy |
| 6 mA | 0.001 mA | 0 ~ 10 A ±(1 % reading 8 digits) 10 ~ 50 A ±(2 % reading 10 digits) 50 ~ 100 A ±(10 % reading 10 digits) | |
| 60 mA | 0.01 mA | ||
| 600 mA | 0.1 mA | ||
| 6 A | 0.001 A | ||
| 60 A | 0.01 A | ||
| 100 A | 0.1 A | ||
| Frequency Response (61-400Hz) | 0 ~ 10 A ±(2 % reading 11 digits) 10 ~ 50 A ±(10 % reading 11 digits) 50 ~ 100 A ±(35 % reading 11 digits) | ||
| Low Pass Filter | Range | Resolution | Accuracy |
| 6 mA | 0.001 mA | 0 ~ 10 A ±(2 % reading 8 digits) 10 ~ 50 A ±(3 % reading 10 digits) 50 ~ 100 A ±(12 % reading 10 digits | |
| 60 mA | 0.01 mA | ||
| 600 mA | 0.1 mA | ||
| 6 A | 0.001 A | ||
| 60 A | 0.01 A | ||
| 100 A | 0.1 A | ||
| Accuracy specified at operating temperature | 23° C ± 5° C <80% RH | ||
| Resolution | 0.001 mA | ||
| Operating frequency range | 50 – 400 Hz | ||
| Sampling rate | 5 times / second | ||
| Data, auto, peak hold | User Selectable | ||
| Low pass filter | 50 / 60 Hz | ||
| Low pass filter cut-off frequency | Approximately 100 Hz with an attenuation characteristic of approximately -24 dB / octave | ||
| Compare pre-set limits | 0.25, 0.50, 3.50 mA | ||
| Jaw size | 40 mm (750 mm conductor size) | ||
| Maximum jaw opening | 43 mm | ||
| Overload | “OL” | ||
| Auto power off | 20 minutes of inactivity | ||
| Operating temperature | 0 °C – 50 °C | ||
| Storage temperature | -20 °C – 60 °C | ||
| Operating Altitude | ≤2000 m | ||
| Temperature coefficient | 0.2 x (Spec. Accuracy) / °C, <18 °C, >28 °C | ||
| Power Supply | 2 x 1.5 V alkaline AAA / LR03 | ||
| Battery life | 60 hours | ||
| Size | 78 mm (W) x 203 mm (H) x 42 mm (D) | ||
| Weight | 300 g | ||
| Safety | EN61010-1 CAT III 300 V | ||
| EMC | EN61326-1 | ||
