• Insulation resistance measurement: up to 1 TΩ
  • measurement voltage: 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 T ₁ , T ₂ i T ₃ 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

Values of measured resistance depending on measurement voltage

• Voltage on open terminals: 4...24 V
• Output current at R <2 Ω: I _SC >200 mA
• Compensation of test lead resistance
• Current flowing in both directions, mean value of resistance is displayed

DC and AC voltage measurement

• 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