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Insulation And Continuity Testers

MIC-5010

  • » Insulation resistance measurement:
  • - measurement voltage any in the range of 50…1000 V at 10 V and 1000...5000 V at 25 V resolution,
    - continuous indication of measured insulation resistance or leakage current,
    - automatic discharge of measured object capacitive voltage after the end of insulation resistance measurement,
    - acoustic signaling of 5 seconds intervals to facilitate capturing time characteristics,
    - metered T1 , T2 and T3 test times for measuring one or two absorption coefficients from the range of 1…600 s,
    - adjustable measuring time to 99'59'’,
    - polarization index (PI) and dielectric absorption ratio (DAR) measurement,
    - indication of actual test voltage during measurement,
    - 1.2 mA and 3 mA test current,
    - step voltage insulation resistance measurement (SV),
    - Dielectric Discharge calculation (DD),
    - protection against measuring live objects,
    - measurements with test leads up to 20 m
  • » Digital filters function for measurements in high noise enviroment (10 s, 30 s , 60 s).
  • » Continuity measurement of protective connections and equipotential bonding in accordance with EN 61557-4 with current > 200 mA.
  • » Adjustable limits for measured resistance RISO and RCONT.
  • » Measurement of leakage current during insulation resistance testing.
  • » Measurement of capacitance during the measurement of RISO.
  • » DC and AC voltage measurement in the range of 0…600 V.
  • » 990 cells of memory (11880 records) with the capability of wireless data transmission to a PC (with the USB-OR adapter) or through a USB cable.
  • » Power supply from battery packs, low battery warning indicator, built-in fast charger.
  • » Keyboard and display backlit.
  • Specification

  • Insulation resistance measurement (two-lead)

    Measurement range acc. to IEC 61557-2: 50k…15,0 TΩ (IISOnom = 1,2 mA or 3 mA)

    Range Resolution Accuracy
    0,0...999 kΩ 1 kΩ ±(3% m.v. + 10 digits)
    1.00...9,99 MΩ 0,01 MΩ
    10.0...99,9 MΩ 0,1 MΩ
    100...999 MΩ 1 MΩ
    1.00...9,99 GΩ 0,01 GΩ
    10.0...99,9 GΩ 0,1 GΩ
    100...999 GΩ 1 GΩ ±(3.5% m.v. + 10 digits)
    1.00...9,99 TΩ 0,01 TΩ ±(7.5% m.v. + 10 digits)
    10.0...15,0 TΩ 0,1 TΩ ±(10% m.v. + 10 digits)

    Values of measured resistance depending on measurement voltage

    Voltage UISO Measurement range
    250 V 500 GΩ
    500 V 1.00 TΩ
    1000 V 2.00 TΩ
    2500V 5.00 TΩ
    5000V 15.0 TΩ

     

    Measurement of leakage current

     

    Range Resolution Accuracy
    0…ILmax m, µ, n [A] Calculated basing on
    resistance measurements

    · ILmax – maximum current at short circuit of leads,
    · resolution and units result from the measurement range of individual insulation resistance.

    Step voltage insulation resistance measurement

    Target voltage Measurement
    voltage sequence
    1 kV 200, 400, 600, 800, 1000 V
    2.5 kV 0.5, 1, 1.5, 2, 2.5 kV
    5 kV 1, 2, 3, 4, 5 kV

    · duration of each "step" adjustable from 30s to 5mins
    · measurement result for each voltage step is stored in memory

    Continuity measurement of protective connections and equipotential bonding with 200 mA current
    Measurement range acc. to EN 61557-4: 0,12...999 Ω

    Range Resolution Accuracy
    0.00...19.99 Ω 0,01 Ω ±(2% m.v. + 3 digits)
    120.0...199.9 Ω 0,1 Ω
    200...999 Ω 1 Ω ±(4% m.v. + 3 digits)

    · Voltage on open terminals: 4...24 V
    · Output current at R < 2 Ω: Imin > 200 mA (ISC: 200...250 mA)
    · Compensation of test lead resistance
    · Current flowing in both directions, mean value of resistance is displayed

    Capacity measurement

    Range Resolution Accuracy
    1...999 nF 1 nF ±(5% m.v. + 5 digits)
    1.00...49.99 µF 0.01 µF

    · Capacity measurement result is displayed after the RISO measurement

    DC and AC voltage measurement

    Range Resolution Accuracy
    0.0...29.9 V 0.1 V ±(2% m.v. + 20 digits)
    30.0...299.9 V 0.1 V ±(2% m.v. + 6 digits)
    300...600 V 1 V ±(2% m.v. + 2 digits)

     

    The acronym “m.v.” stands for a “measured reference value”.




MIC-5000

    Description

  • Digital insulation resistance meter MIC-5000 is intended for direct measurements of insulation resistance in power cables, transformers, electric motors and other power devices and equipment. Additionally, the device enables measurement of DC and AC voltages as well as low voltage measurement of low resistances. All test terminals of the instrument are fitted with a circuitry protecting the device from damage should the mains voltage appear on the input. The instrument was designed and built in compliance with EN IEC 61557 standard.
  • Specification

    The most important features of MIC-5000 are:

    Insulation resistance measurement:

    • test voltage selection between 250...5000 V in 50 V intervals, or predefined 250, 500, 1000, 2500, 5000 V,
    • 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...600 V.

    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 600 V acc. to EN 61010 - 1
    • measurement category for terminals and circuit 5 kV: interpolated III 5000 V
    • 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. 1,0 mA for rated test voltage
    • 1,0...3,0 mA for 2500 V
    • 1,0...1,4 mA for 5000 V
    • measurement rate: approx. 1 measure/second
    • quality standard: ISO 9001

    Other technical data:

    • - power supply: Ni-MH battery pack
    • - power supply adaptor: 100...240 V
    • - minimum measurement time 5 kV/1 mA according to
    • EN 61557 (5 s/25 s) 5 h 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 250 V and 5000 V with 50 V 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 1 sec and 600 sec with accuracy ± 1 sec

     

    measurement range according to PN-EN 61557 - 2: RISOmin...5,0 TΩ; RISOmin=UISOnom/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
    10,00...99,99 MΩ 0,01 MΩ
    100,0...999,9 MΩ 0,1 MΩ
    1,000...9,999 GΩ 0,001 GΩ
    10,00...99,99 GΩ 0,01 GΩ
    100,0...999,9 GΩ 0,1 GΩ
    1,000...5,000 TΩ 0,001 TΩ

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

    Minimum insulation resistance measured without limited converter current

    Test voltage Range
    250 V 250 kΩ
    500 V 500 kΩ
    1000 V 1,0 MΩ
    2500 V 2,5 MΩ
    5000 V 5,0 MΩ

     

    DC voltage measurement

     

    Range Resolution Accuracy
    0...600 V 1 V ±(3% m.v. + 2 digits)

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

    Range Resolution Accuracy
    0...600 V 1 V ±(3% m.v. + 2 digits)

    „m.v.” - measured value.

     

    Leakage current reading

    Range Resolution Accuracy
    0...Ipmax depending 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




MIC-10k1

  • » Auto ranging, Trms AC voltage and current measurement
  • » Resistance, Capacitance, Frequency,mV ,mA ,Diode and Continuity measurement facility
  • » Select, Range, Hold/Light, Relative, Hz/Duty, Min/Max functions incorporated
  • » Robust, Rugged and dust proof casing
  • » CAT IV,600V/ IP-54 protected
  • » IEC 61010-1-2010 compliance
  • Description

  • M63 is specially designed industrial grade Trms digital multimeter in our research laboratory & manufactured under stringent manufacturing process for wide range of applications like Power generation, Power distribution, Power transmission, Steel Industries, Cement Industries, Mining Industries, Power Electronics Industries, Heavy Engineering Industries, and Defense Sector & Aviation Sector. M63 is a high performance multimeter with high safety, linearity and reliability. Excellent noise immunity to disturbances from energized power lines, with CAT IV & IP-54 protection.



MIC-5050

  • » Auto ranging, Trms AC voltage and current measurement
  • » Resistance, Capacitance, Frequency,mV ,mA ,Diode and Continuity measurement facility
  • » Select, Range, Hold/Light, Relative, Hz/Duty, Min/Max functions incorporated
  • » Robust, Rugged and dust proof casing
  • » CAT IV,600V/ IP-54 protected
  • » IEC 61010-1-2010 compliance
  • Description

  • M63 is specially designed industrial grade Trms digital multimeter in our research laboratory & manufactured under stringent manufacturing process for wide range of applications like Power generation, Power distribution, Power transmission, Steel Industries, Cement Industries, Mining Industries, Power Electronics Industries, Heavy Engineering Industries, and Defense Sector & Aviation Sector. M63 is a high performance multimeter with high safety, linearity and reliability. Excellent noise immunity to disturbances from energized power lines, with CAT IV & IP-54 protection.




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