SONEL MRU-200 Earth Resistance And Resistivity Meter

Interference Voltage

Measuring range: 0 V to 100 V

Display range: 0 V to 100 V

Resolution: 1 V

Accuracy: ±(2% m.v. + 3 digits)

Earth Resistance and Equipotential Bonding

Measuring range: 0.045 Ω to 19.99 kΩ (according to EN 61557-4)

Display range: 0.000 Ω to 19.99 kΩ

Resolution: from 0.001 Ω

Accuracy: from ±(2% m.v. + 2 digits)

Earth Resistance Measurement

3-pole / 4-wire method

Measuring range: 0.100 Ω to 19.99 kΩ (according to EN 61557-5)

Display range: 0.000 Ω to 19.99 kΩ

Resolution: from 0.001 Ω

Accuracy: from ±(2% m.v. + 2 digits)

3-pole + clamp method

Measuring range: 0.120 Ω to 1999 Ω (according to EN 61557-5)

Display range: 0.000 Ω to 1999 Ω

Resolution: from 0.001 Ω

Accuracy: ±(8% m.v. + 3 digits)

Dual clamp method

Measuring range: 0.00 Ω to 149.9 Ω

Display range: 0.00 Ω to 149.9 Ω

Resolution: from 0.01 Ω

Accuracy: from ±(10% m.v. + 3 digits)

Impulse method (4/10 μs, 8/20 μs, 10/350 μs)

Measuring range: 0.0 Ω to 199 Ω

Display range: 0.0 Ω to 199 Ω

Resolution: from 0.1 Ω

Accuracy: ±(2.5% m.v. + 3 digits)

Auxiliary Electrode Resistance

Measuring range: 0 Ω to 19.9 kΩ

Display range: 0 Ω to 19.9 kΩ

Resolution: from 1 Ω

Accuracy: ±(5% (RE + RH + RS) + 8 digits)

Soil Resistivity

Measuring range: 0.0 Ω·m to 999 kΩ·m

Display range: 0.0 Ω·m to 999 kΩ·m

Resolution: from 0.1 Ω·m

Accuracy: Depends on RE 4P measurement accuracy, but not less than ±1 digit

Leakage Current

Measuring range: 0.1 mA to 300 A

Display range: 0.1 mA to 300 A

Resolution: from 0.1 mA

Accuracy: from ±(5% m.v. + 5 digits)

Operating Conditions & Safety

Measurement category (EN 61010): CAT III 600 V / CAT IV 300 V

Protection rating: IP54

Insulation class (EN 61010-1, IEC 61557): Class II

Mechanical Specifications

Dimensions: 288 × 223 × 75 mm / 11.3 × 8.8 × 3.0 in

Weight: approx. 2 kg / 4.4 lbs

Environmental Conditions

Operating temperature: -10 to +50°C / 14 to 122°F

Storage temperature: -20 to +80°C / -4 to 176°F

Operating humidity: 20% to 90% (at 23 ± 2°C / 73.4°F ± 3.6°F)

Reference humidity: 40% to 60%

Memory & Communication

Internal memory: up to 990 measurement results

Interfaces: USB, Bluetooth

MRU-200-GPS GPS: 3 m

Datasheet- Vietnamese