- One-button measurement concept
- 3- and 4-pole earth ground measurement
- 4-pole soil resistivity testing
- Selective testing, no disconnection of ground conductor (1 clamp)
- Stakeless testing, quick ground loop testing (2 clamps)
- Measuring frequency 128 Hz
SPECIFICATIONS
| RA 3-pole Ground Resistance Measurement (IEC 1557-5) | |
| Measuring voltage | Vm = 48 V ac |
| Short circuit current | > 50 mA |
| Measure frequency | 128 Hz |
| Resolution | 0.001 Ω to 10 Ω |
| Measuring range | 0.001 Ω to 19.99 kΩ |
| Intrinsic error | ± (2 % of reading + 3 digit) |
| Operating error | ± (5 % of reading + 3 d) |
| RA 4-pole Ground Resistance Measurement (IEC 1557-5) | |
| Measuring voltage | Vm = 48 V ac |
| Short circuit current | > 50 mA |
| Measure frequency | 128 Hz |
| Resolution | 0.001 Ω to 10 Ω |
| Measuring range | 0.001 Ω to 19.99 kΩ |
| Intrinsic error | ± (2 % of reading + 3 d) |
| Operating error | ± (5 % of reading + 3 d) |
| RA 3-pole Ground Resistance Measurement With Current Clamp | |
| Measuring voltage | Vm = 48 V ac |
| Short circuit current | > 50 mA |
| Measure frequency | 128 Hz |
| Resolution | 0.001 Ω to 10 Ω |
| Measuring range | 0.001 Ω to 19.99 kΩ |
| Intrinsic error | ± (7 % of reading + 3 d) |
| Operating error | ± (10 % of reading + 5 d) |
| RA 4-pole Selective Ground Resistance Measurement With Current Clamp | |
| Measuring voltage | Vm = 48 V ac |
| Short circuit current | > 50 mA |
| Measure frequency | 128 Hz |
| Resolution | 0.001 Ω to 10 Ω |
| Measuring range | 0.001 Ω to 19.99 kΩ |
| Intrinsic error | ± (7 % of reading + 3 d) |
| Operating error | ± (10 % of reading + 5 d) |
| Stakeless Ground Loop Measurement | |
| Measuring voltage | Vm = 48 V ac |
| Measure frequency | 128 Hz (125 Hz on request) |
| Noise current (Iext) | Max. Iext = 10 A (ac) (RA < 20 Ω) |
| Max. Iext = 2 A (ac) (RA < 20 Ω) | |
| Resolution | 0.001 Ω to 0.1 Ω |
| Measuring range | 0.001 Ω to 199.9 kΩ |
| Intrinsic error | ± (7 % of reading + 3 d) |
| Operating error | ± (10 % of reading + 5 d) |
| Environmental Specifications | |
| Working temperature | -10 °C to +50 °C |
| Operating temperature | 0 °C to +35 °C |
| Nominal temperature | +18 °C to +28 °C |
| Storage temperature | -20 °C to +60 °C |
| Climatic class | C1 (IEC 654-1), -5 °C to + 45 °C, 5 % to 95 % RH |
| Protection type | IP56 for case, IP40 for battery door according to EN 60529 |
| Safety Specifications | |
| Safety rating | CAT II, 300 V |
| Mechanical And General Specifications | |
| Display | 1999 digit LCD – display with special symbols, digit height 25 mm, fluorescent backlight |
| Size | 133 mm x 187 mm x 250 mm |
| Weight | 1.1 kg (including batteries) |
| Warranty | Two years |
| Battery life | Typical > 3000 measurements |