MRU-10 Earth resistance meter
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
Manufacturer: SONEL S.A. (Poland).
Description
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.
Features
- Measurements of earthing resistance using auxiliary electrodes
- Measurements of earthing resistance using 2-pole method
- Measurements of interference voltage to 100 V
- Measurements of resistance of auxiliary electrodes RH and RS
- Indication of battery state
- Selection of maximum measuring voltage (25 V and 50 V)
- Auto-OFF function
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Measurement of earthing resistance (method 3-pole) RE3p (0,53 Ω...9999 Ω for Un=50V)
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Range
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Resolution
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Accuracy
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0,00...19,99 Ω
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0,01 Ω
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±(3% m.v. + 3 digits)
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20,0...199,9 Ω
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0,1 Ω
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200...1999 Ω
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1 Ω
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±5% m.v.
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2000...9999 Ω
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1 Ω
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±8% m.v.
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Measurement of earthing resistance (method 2-pole) RE2P
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Range
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Resolution
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Accuracy
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0,00...19,99 Ω
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0,01 Ω
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±(3% m.v. + 3 digits)
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20,0...199,9 Ω
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0,1 Ω
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200...1999 Ω
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1 Ω
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±5% m.v.
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2000...9999 Ω
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1 Ω
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±8% m.v.
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Measurement of resistance of auxiliary electrodes RH
i RS
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Range
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Resolution
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Accuracy
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0...999 Ω
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1 Ω
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±(5% m.v. + 8 digits)
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1,00 k...9,99 kΩ
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0,01 kΩ
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10,0 k...19,9 kΩ
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0,1 kΩ
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Measurement of interference voltage UN (RMS)
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Range
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Resolution
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Accuracy
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0...100 V
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1 V
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±(10% m.v. + 1 digit)
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Standard accessories:
- MRU-10
- Test lead 30 m, yellow, for MRU (banana plugs, on H-frame reel)
- Test lead 15 m, red, for MRU (banana plugs, on H-frame reel)
- Test lead 2,2 m, black, 1 kV (banana plugs)
- Crocodile clip, black, 1 kV, 20 A
- Alkaline batteries 1.5V AA, LR6 (4 pieces)
- Earth contact test probe (rod) 25 cm, (2 pieces)
- M6 carrying case
- M1 hanging straps
- M1 hanging hook straps
- User manual
Optional accessories:
- Earth contact test probe (rod), 30 cm
- Earth contact test probe (rod), 80 cm
- Cramp (banana plug)
- L3 carrying case for a 80 cm rods
- Test lead 25 m, red, for MRU (banana plugs, on a reel)
- Test lead 50 m, yellow, for MRU (banana plugs, on a reel)
- Test lead 100 m, red, for MRU (banana plugs, on a reel)
- Test lead 200 m, yellow, for MRU (banana plugs, on a reel)
- Crocodile clip, red, 1 kV, 20 A
- Crocodile clip, yellow, 1 kV, 20 A
