MRU-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.
Earth Ground Resistance Testers
MRU-10 Earth Resistance Meter
Availability:
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
CompareWeight | 1 kg |
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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
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Power Quality Analyzer
PQM-707 Power Quality Analyzer
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Features:
- 7″ touch screen – intuitive operating
- CAT IV 600V – high safety
- all parameters acc. to class S – high accuracy of measurements
- Li-Ion rechargeable battery – higher mobility
- removable memory card – recording data with no restrictions
Possible measurements:
- Measurements according to EN 50160,
- Voltage L1, L2, L3, N-PE (five inputs),
– average, minimum, maximum values, range to 760 V, ability to work with voltage transformers, - Current L1, L2, L3, N (four inputs),
– average, minimum, maximum values, measurement current with range to 3 kA (depends on used clamp), ability to work with current transformers, - Crest factor for voltage and current,
- Frequency from 40 Hz to 70 Hz ,
- Active, reactive, distortion, apparent power, including the type of reactive power (capacitive, inductive),
- Power recording:
- Budeanu method,
- IEEE 1459,
- Active, reactive, apparent energy,
- Power factor, cosφ, tgφ,
- Up to 50th harmonics for voltage and current,
- Total Harmonic Distortion (THD) for voltage and current,
- Short-term (PST) and long-term (PLT) flicker,
- Unbalance of voltage and current,
- Current and voltage events registration including waveforms and RMS graphs half period,
- Inrush current
- Calculator of energy tariffs
- ANALYZER MEASURES AND RECORDS ACCORDING TO THE IEC 61000-4-30 CLASS S STANDARD.
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