SPESIFIKASI
| Measurement functions | Measurement range | Display range | Resolution | Accuracy |
|---|---|---|---|---|
| Interference voltage | 0 V…100 V | 0 V…100 V | 1 V | ±(2% m.v. + 3 digits) |
| Connection and equipotential bonding resistance | 0.13 Ω…199 Ω acc. to EN 61557-4 | 0.00 Ω…199 Ω | from 0.01 Ω | ±(2% m.v. + 3 digits) |
| Earth resistance | ||||
| 2-wire method | 0.00 Ω…1.99 kΩ | 0.00 Ω…1.99 kΩ | from 0.01 Ω | from ±(2% m.v. + 3 digits) |
| 3-wire method | 0.50 Ω…1.99 kΩ acc. to EN 61557-5 | 0.00 Ω…1.99 kΩ | from 0.01 Ω | ±(2% m.v. + 3 digits) |
| auxiliary electrodes resistance | 0 Ω…50.0 kΩ | 0 Ω…50.0 kΩ | from 1 Ω | ±(5% (RE +RH+RS) + 3 digits) |
“m.v.” – measured value
Basic measurements of earthing systems and continuity of connections
The Sonel MRU-21 earth resistance meter is a simple meter which makes it possible to measure earthing with the use of the technical method and to measure the continuity of protective and equalising connections.
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