- earth resistance measurment with 3-pole,4-pole method,
- earth resistance measurement without disconnecting measured earths (using clamp),
- continuity of equipotential bondings and protecting conductors
- two clamps earth resistance measurement without auxiliary test probs,
- earth resistivity measurement,
- Testing AC residual current circuit breakers:
- measurement of tripping current IA
- measurement of disconnection time tA
- testing of standard and selective RCDs for the rated current values 10, 30, 100, 300 and 500 mA,
- testing current waveform: sinusoidal, selection of initial phase (0° or 180°),
- ability to measure touch voltage UB and earth resistance RE without tripping the circuit breaker,
- select safe voltage value threshold at 25V and 50V and additionally at 12.5V for selective RCDs,
- protection against exceeding the safe voltage setting during a measurement,
- detection of L and N leads swap and its automatic correction performed internally by the meter. - AC voltmeter function in the range 0...250V.
- Rapid check of PE lead connection using a touch electrode.
- Backlit LCD.
- Memory to store up to 400 cels of measurement results with an ability to transfer the data to a PC.
- Battery status indicator.
- AUTO-OFF function.
- Meter meets the requirements of the standard EN 61557.
Rated operational conditions:
- operating temperature: 0...+40°C
- storage temperature: -20...+60°C
- reference temperature: +23 ± 2°C
- temperature coefficient:
for touch voltage measurements: ± 1% of the measured value ± 1 digit /10°C
for disconnection current measurement: ± 0,5% of the measured value /10°C
- rated mains voltage: 187...250V
- rated mains frequency: 50Hz ±0,5Hz
Electric security:
- type of insulation: double, according to EN 61010-1 and IEC 61557
- measurement category: CAT III 300V acc. to EN 61010-1
- protection class acc. to EN 60529: IP40
Other technical data:
- voltage range for RCD testing: 187...250V
- power supply: alkaline batteries LR6 (AA) (2 pcs.)
- dimensions: 230 x 67 x 35 mm
- weight: approx. 380 g
- time to auto-off: 2 minutes
- display: LCD 3 digits, 14mm high
- quality standard: ISO 9001
Earthing resistance measurement (RE):
| Selected rated RCD current |
Range | Resolution |
Measurement |
Accuracy |
| 10mA | 0,01...5,00kΩ | 0,01kΩ | 4mA | 0...+10% m.v. ± 5 digits |
| 30mA | 0,01...1,66kΩ | 12mA | 0...+10% m.v. ± 3 digits | |
| 100mA | 1...500Ω | 1Ω | 40mA | 0...+4% m.v. ± 4 digits |
| 300mA | 1...166Ω | 120mA | ||
| 500mA | 1...100Ω | 200mA | 0...+4% m.v. ± 3 digits |
RCD disconnection test and the response time measurement tA
| RCD type | Range | Resolution | Accuracy |
| Standard | 0...200ms | 1ms | ±(2%m.v. + 1 digits) |
| Selective | 0...500ms |
RCD disconnecting current measurement for a sine AC test current (IA)
| Selected rated RCD current |
Range | Resolution |
Measurement |
Accuracy |
| 10mA | 3,3...10,0mA | 0,1mA | 0,3mA x IΔn ...1,0mA x IΔn |
±5% IΔn |
| 30mA | 9,0...30,0mA | |||
| 100mA | 33...100mA | 1mA | ||
| 300mA | 90...300mA | |||
| 500mA | 150...500mA |
• start of the measurement can be selected either from the positive or negative half sine
period of the test current
• test current flow time - max. 3200ms
IΔn - rated residual current value RCD
AC voltage measurement
| Range | Resolution | Accuracy |
| 0...250V | 1V | ±(1% m.v. + 2 digits) |
Touch voltage measurement referred to the rated residual current (UB)
Test range: 10...50V
| Selected rated RCD current |
Range | Resolution |
Measurement |
Accuracy |
| 10mA | 0...50V | 0,1V | 4mA | 0...+10% m.v. ± 5 digits |
| 30mA | 12mA | |||
| 100mA | 40mA | 0...+4% m.v. ± 5 digits |
||
| 300mA | 120mA | |||
| 500mA | 200mA |
