MRU-10 Earth Resistance Meter
3 in stock
It allows to:
- measure earthing resistance using auxiliary electrodes,
- measurement of resistance of auxiliary electrodes RS and RH,
- measurement of interference voltage,
- measurement in the presence of interference voltage in the power network with frequency 50 Hz and 60 Hz,
- selection of maximum measuring voltage (25 V and 50 V),
- indication of battery state.
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3 in stock
CompareMRU-10 is a simple meter that allows you to measure grounding by the use of the technical method and to measure grounding resistance by the use of the 2-pole method. The instrument is easy to handle, resistive to interference, and highly accurate. MRU-10 is a basic device that allows checking the quality of the grounding system on the basis of the received measurement result. Its ergonomic shape, durable and firm housing, as well as big and clear display make this instrument ideal to use both in the field and most working environments. The device is simple to operate and intuitive. It is the best choice for electrical installations contractors, technicians, and professionals dealing with grounding measurements.
| Weight | 1 kg |
|---|---|
| Dimensions | 22 × 10 × 6 cm |
Measurement of interference voltage UN (RMS)
| Range | Resolution | Accuracy |
| 0…100 V | 1 V | ±(10% m.v. + 1 digit) |
Measurement of earthing resistance (method 3-pole)
measurement range to IEC 61557-5:2007: 0,53 Ω…9999 Ω (for 50 V)
| Range | Resolution | Accuracy |
| 0,00…19,99 Ω | 0,01 Ω | ±(3% m.v. + 3 digits) |
| 20,0…199,9 Ω | 0,1 Ω | |
| 200…1999 Ω | 1 Ω | ±5% m.v. |
| 2000…9999 Ω | 1 Ω | ±8% m.v. |
- measurement current: under short circuit >20 mA,
- voltage on open terminals: selectable 25 V AC or 50 V AC,
- frequency of measurement current: 125 Hz (for networks 50 Hz) or 150 Hz (for 60 Hz),
- selection of measuring frequency in settings.
Measurement of earthing resistance (method 2-pole)
| Range | Resolution | Accuracy |
| 0,01…19,99 Ω | 0,01 Ω | ±(3% m.v. + 3 digits) |
| 20,0…199,9 Ω | 0,1 Ω | |
| 200,0…1999 Ω | 1 Ω | ±5% m.v. |
| 2000…9999 Ω | 1 Ω | ±8% m.v. |
Measurement of earthing resistance (method 2-pole) RH and RS
| Range | Resolution | Accuracy |
| 0…999 Ω | 1 Ω | ±8% m.v. |
| 1,00…9,99 kΩ | 0,01 Ω | |
| 10,0…19,9 kΩ | 0,1 Ω |
Electric security:
- type of insulation: double, according to EN 61010-1 and IEC 61557,
- measurement category: CAT IV 150 V acc. to EN 61010-1,
- protection class acc. to EN 60529: IP67.
Rated operational conditions:
- operation temperature: -10…+50°C,
- storage temperature: -20…+60°C,
- humidity: 20…90%.
Other technical data:
- LCD display: segment, backlit,
- dimensions: 221 x 102 x 62 mm,
- number of measurements (RE3P) carried out of set of batteries: > 3000
Brand
SONEL
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Insulation Tester
MIC-15k1 ,15kV Insulation Quality Analyzer
Features:
- Diagnostics of insulation systems based on standard measurements of IR, DAR, PI, SV, RT, DD, widened with thepartial discharge (PD) indicator for every each of these measurements.
- It allows testing the electrical durability of the tested object – breakdown voltage indication.
- High resistance to electromagnetic interferences guarantees uninterrupted work in power stations and close to high voltage transmission lines up to 1200 kV AC and 500 kV DC.
- The function of smooth voltage rise in time (RT – Ramp Test) allows to state the partial discharges in the facility and to carry out a partial location of their occurrence.
- Efficient converter with a power of ~150 W that enables insulation burnout, allowing for pinpointing the location of cables and wires short circuit using one of the following:
- visual method (if power cables are visible along the entire length),
- reflectometric methods, seismic-acoustic waves detector, or with A-frame to indicate direction of the fault (the conductor must be buried in the ground with earth direct contact).
- Compatible with external software.
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- measurement of resistance of auxiliary electrodes RS and RH,
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