Possible measurements:
- 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.
It allows to take the measurements of:
- earth resistance using auxiliary electrodes,
- earth resistance using auxiliary electrodes and clamp (for measurements of multiple earth)
- earth resistance using double clamps (for measurement of earthing when it is impossible to use auxiliary electrodes),
- ground resistivity (Wenner method),
- measurement of continuity of equipotential bondings and protective conductors (meeting the requirements of IEC 60364-6-61:2000 section 6.12.2) with auto-zero function – with current 200mA.
Additionally:
- measurement of resistance of auxiliary electrodes RS and RH,
- measurement of interference voltage,
- measurement of interference frequency,
- measurement in the presence of interference voltage in the power network with frequency 50Hz, 60Hz
- selection of maximum measuring voltage (25V and 50V)
- introducing the distance between the electrodes for the resistivity in metres (m),
- memory of 990 measurements (10 banks of 99 cells each),
- calibration of clamp used,
- real time clock (RTC),
- data transmission to the computer (USB, wireless),
- indication of battery state.
Electric security:
- type of insulation: double, according to EN 61010-1 and IEC 61557
- measurement category: CAT IV 300V acc. to EN 61010-1
- protection class acc. to EN 60529: IP54
Rated operational conditions:
- operation temperature: -10...+50°C
- storage temperature: -20...+70°C
- humidity: 20...80%
Other technical data:
- LCD display: graphic, backlighted
- interface: USB, wireless
- number of measurements carried out of set of batteries: > 500
- warranty: 36 months
Measurement of interference voltage
| Range | Resolution | Accuracy |
| 0...100V | 1V | ±(2% m.v + 3 digits) |
• singnalling overvoltage 24V or 40V rms
• measurement for DC and AC 45…65 Hz,
Measurement of earth resistance (method 3- and 4-pole)
measurement range to IEC61557-5: 0,30Ω...19,9kΩ
| Range | Resolution | Accuracy |
| 0,00...19,99Ω | 0,01Ω | ±(2% m.v. + 2 digits) |
| 20,0...199,9Ω | 0,1Ω | |
| 200...1999Ω | 1Ω | |
| 2,0k...9,99kΩ | 0,01kΩ | ±(5% m.v. + 4 digits) |
| 10,0k...19,9kΩ | 0,1kΩ |
• measurement current: under short circuit >200mA,
• voltage on open terminals: selectable <25V AC or <50V AC,
• frequency of measurement current: 125 (for networks 50Hz) or 150Hz (for 60Hz),
Measurement of continuity of equipotential bondings and protective conductors (Rcont)
measurement range to IEC61557-5: 0,24Ω...19,9kΩ
| Range | Resolution | Accuracy |
| 0,00...19,99Ω | 0,01Ω | ±(2% m.v. + 2 digits) |
| 20,0...199,9Ω | 0,1Ω | |
| 200...1999Ω | 1Ω | |
| 2,0k...9,99kΩ | 0,01kΩ | ±(5% m.v. + 2 digits) |
| 10,0k...19,9kΩ | 0,1kΩ |
•voltage on open terminals: <24Vrms but >4Vrms,
• measurement current: under short circuit >200mA,
• frequency of measurement current: 125 (for networks 50Hz)
or 150Hz (for networks 60Hz), possible choice of measurement frequency in menu,
• auto-zero function measurement leads
Measurement of resistance of auxiliary electrodes RH and RS
| Range | Resolution | Accuracy |
| 0...999Ω | 1Ω | ±(5% (RS+RE+RH) + 8 digits) |
| 1,00k...9,99kΩ | 0,01kΩ | |
| 10,0k...19,9kΩ | 0,1kΩ |
Measurement of multiple earth resistance with using the clamp and auxiliary electrodes (3p + clamp)
measurement range to IEC61557-5: 0,44Ω...1999Ω
| Range | Resolution | Accuracy |
| 0,00...19,99Ω | 0,01Ω | ±(8% m.v. + 3 cyfry) |
| 20,0...199,9Ω | 0,1Ω | |
| 200...1999Ω | 1Ω |
• voltage on open terminals: selectable <25V AC or <50V AC,
• measurement current: under short circuit > 200mA,
• frequency of measurement current: 125 (for networks 50Hz)
or 150Hz (for 60Hz),
Measurement of multiple earth resistance with using double clamps
| Range | Resolution | Accuracy |
| 0,00..19,99Ω | 0,01Ω | ±(10% m.v. + 3 digits) |
| 20,0...149,9Ω | 0,1Ω | ±(20% m.v. + 3 digits) |
• frequency of measurement current 125 (for networks 50Hz)
or 150Hz (for networks 60Hz)
Measurement of ground resistivity
Measurement method: Wennera, ρ=2πLRE
| Range | Resolution | Accuracy |
| 0,0...199,9Ωm | 0,1Ωm | depending on measurement accuracy RE with 4p method, but not less than ±1 digit |
| 200...1999Ωm | 1Ωm | |
| 2,00k...19,99kΩm | 0,01kΩm | |
| 20,0k...99,9kΩm | 0,1kΩm | |
| 100k...999kΩm | 1kΩm |
L – distance between probes: 1...50m