Sonel MIC-5000 绝缘电阻测试仪(5kV,5.000TΩ)

MIC-5000 Technical Specification

The most important features of MIC-5000 are:

  • Insulation resistance measurement:
    -  test voltage selection between 250...5000V in 50V intervals, or predefined 250, 500, 1000, 2500, 5000V,
    - on-line insulation resistance measurement or leakage current,
    - automatic discharge of tested object’s capacitance after measurement of insulation resistance,
    - direct measurement of one or two absorption coefficients,
    - acoustic determination of 5 seconds time intervals that facilitates to take time characteristics during insulation resistance measurement,
    - saving measured value of test voltages and selected times T1, T2 and T3 ranging from 1... 600 seconds for the measurements of one or two absorption coefficients (DAR, PI or Ab1, Ab2),
    - indicator of the actual test voltage value during a measurement,
    - protection against live objects.
  • AC/DC voltage measurement in range 0...600V.
  • Memory for 999 measurement results with an ability to transfer the datato a PC.
  • Automatic selection of measurement ranges.
  • Powered by rechargeable battery pack:
    -  included with the device an external power supply for automatic battery charging to ensure prolonged battery life and optimal working conditions,
    -  battery status indicator.
  • AUTO-OFF function.
  • Meter meets the requirements of the standard EN 61557.

Electric security:
- type of insulation: double, according to  EN 61010-1 and IEC 61557
- measurement category: CAT III 600V acc. to EN 61010-1
- measurement category for terminals and circuit 5kV: interpolated III 5000V 
- protection class acc. to EN 60529: IP54

Rated operational conditions:

- operating temperature: -10...+50°C,
- test voltage accuracy (Robc[Ω]≥1000*Un[V]): -0...+10% of the set value,
- voltage fluctuation due to temperature changes better than: 0,2%/°C,
- converter output current:
        min. 1,0mA for rated test voltage
        1,0...3,0mA for 2500V
        1,0...1,4mA for 5000V
- measurement rate: approx. 1 measure/second
- quality standard: ISO 9001 

Other technical data:
- power supply:     Ni-MH battery pack
- power supply adaptor:    100...240V
- minimum measurement time 5kV/1mA according to 
  EN 61557 (5s/25s)    5h or 600 measurements
- time to auto-off:
    mode RISO/IL    depends on T2 or T3 (T2/T3 + 300 seconds) settings
    other modes    300 seconds

Insulation resistance measurement

  • test voltage can be set in the range between 250V and 5000V with 50V intervals
  • test voltage accuracy (Robc [Ω] ≥ 1000*UN [V]): 0 +10% of the set value
  • voltage fluctuation due to temperature changes - better than 0,2% / °C
  • measurement times T1, T2 i T3 for absorption coefficient measurement selected from the range between 1sec and 600sec with accuracy ± 1sec


measurement range according to PN-EN 61557-2: RISOmin...5,0TΩ; RISOmin=UISOnom/1mA

0,0...999,9kΩ0,1kΩ±(3% m.v. + 20 digits)

• for measurements of limited converter current, the accuracy is not specified.

Minimum insulation resistance measured without limited converter current

Test voltageRange


DC voltage measurement

0...600V1V±(3% m.v. + 2 digits)

AC voltage measurement 

50Hz (sinusoidal shape with harmonic contents < 2%)

0...600V1V±(3% m.v. + 2 digits)

„m.v.” - measured value.


Leakage current reading

0...Ipmaxdepending on range-ΔI-, +ΔI+

Ipmax - maximum converter current 1,2 ± 0,2 mA, 
ΔI-, +ΔI+ - current reading accuracy calculated using the following formula:


UISO - test voltage
R - displayed insulation resistance value
ΔR - resistance measurement defined for a particular measurement








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