- Insulation resistance measurement:
- selectable measurement voltage in the 100…2500 V range with 100 V step,
- continuous indication of insulation resistance or leakage current,
- automatic discharge of capacitance of tested object after the insulation resistance measurement,
- acoustic signalling of five-second periods to facilitate obtaining time characteristics,
- measured test times T1, T2 i T3 to measure one or two absorption coefficients in 15, 60 and 600 s,
- indication of actual test voltage during the measurement,
- protection against measuring live objects,
- two and three-lead measurement method,
- Continuity measurement of protective and equipotential conductors according to EN 61557-4
- with the >200 mA current.
- Leakage current measurement.
- Measurement of alternating and direct voltages in the 0...750 V range.
- Built-in rechargeable battery pack.
- The instruments meet the requirements of the EN 61557 standard.
- The ability to charge from car lighter (12 V) socket (additional accessories).
Sonel MIC-2501 insulation resistance tester / meter
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Insulation resistance measurement (two-lead)
Measurement range acc. to IEC 61557-2 for RISOmin=UISOnom/IISOmax...1 TΩ (IISOmax=1 mA)
| Range | Resolution | Accuracy |
|---|---|---|
| 0,0...999,9 kΩ | 0,1 kΩ | ±(3% m.v. + 20 digits) |
| 1,000...9,999 MΩ | 0,001 MΩ | ±(3% m.v. + 20 digits) |
| 10,00...99,99 MΩ | 0,01 MΩ | ±(3% m.v. + 20 digits) |
| 100,0...999,9 MΩ | 0,1 MΩ | ±(3% m.v. + 20 digits) |
| 1,000...9,999 GΩ | 0,001 GΩ | ±(3% m.v. + 20 digits) |
| 10,00...99,99 GΩ | 0,01 GΩ | ±(3% m.v. + 20 digits) |
| 100,0...999,9 GΩ | 0,1 GΩ | ±(3% m.v. + 20 digits) |
Values of measured resistance depending on measurement voltage
| Voltage UISO | Measurement range |
|---|---|
| 100 V | 50 GΩ |
| 200...400 V | 100 GΩ |
| 500...900 V | 250 GΩ |
| 1000...2400 V | 500 GΩ |
| 2500 V | 1000 GΩ |
Continuity measurement of protective connections and equipotential bonding with 200 mA current.
Measurement range acc. to EN 61557-4: 0,10...999 Ω
| Range | Resolution | Accuracy |
|---|---|---|
| 0,00...19,99 Ω | 0,01 Ω | ±(2% m.v. + 3 digits) |
| 20,0...199,9 Ω | 0,1 Ω | ±(2% m.v. + 3 digits) |
| 200...999 Ω | 1 Ω | ±(4% m.v. + 3 digits) |
- Voltage on open terminals: 4...24 V
- Output current at R <2 Ω: ISC >200 mA
- Compensation of test lead resistance
- Current flowing in both directions, mean value of resistance is displayed
DC and AC voltage measurement
| Range | Resolution | Accuracy |
|---|---|---|
| 0...299,9 V | 0,1 V | ±(3% m.v. + 2 digits) |
| 300...750 V | 1 V | ±(3% m.v. + 2 digits) |
- Frequency range: 45...65 Hz
The acronym “m.v.” stands for a “measured reference value”.
Electrical safety:
- type of insulation: double, in acc. with EN 61010-1 und IEC 61557
- measurement category: IV 600 V (III 1000 V) in acc. to EN 61010-1
- case protection rating in acc. with EN 60529: IP65
Other technical specifications:
- power supply of the meter SONEL L-1 NiMH 9,6 V; DC 12 V 2,5 A
- weight of the meter: approx. 0,9 kg
- dimensions: 200 x 180 x 77 mm
- display: LCD segment display
- measurement results memory: 990 cells, 11880 records,
- transmission of measurement results: USB