MZC-304
Index: WMGBMZC304
Loop Meter
Description
Technical Specification
Files
  • Description

    Measurements of impedance in a short circuit loop.

    • L-PE circuit,
    • L-N, L-L circuit,
    • L-PE(RCD) circuit - without tripping the circuit breaker ≥ 30 mA.

    Low voltage resistance measurement:

    • continuity measurement - DC current +200 mA with wire resistivity reset
    • low current resistance measurement with accoustic signalling,

    the measurements are posible in instalations 220/380 V, 230/400 V, 240/415 V with frequeency range 45...65 Hz.

    memory of 10 banks of 99 cells each (min.10000 records).

    Radio wireless interface comunication

     

  • Technical Specification

    Short circuit loop impedance ZL-PE,ZL-N,ZL-L , resistance and reactance measurement
    Short circuit loop impedance ZS

    Range Resolution Accuracy
    0,00...19,99 Ω 0,01 Ω ±(5% m.v. + 3 digits)
    20,0...199,9 Ω 0,1 Ω ±(5% m.v. + 3 digits)
    200...1999 Ω 1 Ω ±(5% m.v. + 3 digits)
    • nominal work voltage UnL-N / UnL-L: 220/380 V, 230/400 V, 240/415 V,
    • voltage range 180…270 V (for ZL-PE i ZL-N) and 180…460 V (dla ZL-L),
    • nominal network frequency fn: 50 Hz, 60 Hz,
    • frequency range: 45…65 Hz,
    • maximum measurement current 7,6 A for 230 V (3 x 10 ms), 13,3 A for 400 V (3 x 10 ms),
    • PE terminal connection correctness check with the help of touch electrode (ZL-PE, ZL-PE(RCD)),
    • short circuit current calculation for nominal voltage

     

    Short circuit loop resistance RS and reactance XS

    Range Resolution Accuracy
    0,00...19,99 Ω 0,01 Ω ±(5% m.v. + 5 digits) of ZS value
    20,0...199,9 Ω 0,1 Ω ±(5% m.v. + 5 digits) of ZS value

    calculated and displayed for ZS<200 Ω

    Short circuit loop impedance ZL-PE RCD measurement - without tripping the circuit breaker
    Short circuit loop impedance ZS measurement

    Range Resolution Accuracy
    0,00...19,99 Ω 0,01 Ω ±(6% m.v. + 10 digits)
    20,0...199,9 Ω 0,1 Ω ±(6% m.v. + 5 digits)
    200...1999 Ω 1 Ω ±(6% m.v. + 5 digits)
    • No RCD reaction for I?n≥30 mA,
    • nominal work voltage Un: 220 V, 230 V, 240 V,
    • voltage range: 180…270 V,
    • nominal network frequency fn: 50 Hz, 60 Hz,
    • frequency range: 45…65 Hz,
    • PE terminal connection correctness check with the help of touch electrode
    • short-circuit current calculation for nominal voltage

    Short circuit resistance RS and reactance XS display range (for ZL-PE RCD)*

    Range Resolution Accuracy
    0,00...19,99 Ω 0,01 Ω ±(6% m.v. + 10 digits) of ZS value
    20,0...199,9 Ω 0,1 Ω ±(6% m.v. + 5 digits) of ZS value

    *ocalculated and displayed for Zs<200 Ω

    Low voltage resistance measurement
    Measurement of continuity of equipotential bondings and protective conductors with ±200 mA current

    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...400 Ω 1 Ω ±(2% m.v. + 3 digits)
    • open terminals voltage: 4…9 V DC,
    • output current at R<2 Ω: min 200 mA (ISC: 200...250 mA),
    • test leads resistance compension,
    • measurement for both current polarization

    Low current resistance measurement

    Range Resolution Accuracy
    0,0...199,9 Ω 0,1 Ω ±(3% m.v. + 3 digits)
    200...1999 Ω 1 Ω ±(3% m.v. + 3 digits)
    • open terminals voltage4...9 V DC
    • output current ISC< 8 mA,
    • accustic signal for measured resistance < 30 Ω ± 50%,
    • test leads resistance compensation.

    AC voltage measurement

    Range Resolution Accuracy
    0,0 V...299,99 V 0,1 V ±(2% m.v. + 6 digits)
    300 V...500 V 1 V ±(2% m.v. + 2 digits)
    • frequency range 45...65 Hz,
    • test result refreshing: twice per second


    Frequency measurement

    Range Resolution Accuracy
    45,0 V...65,0 Hz 0,1 Hz ±(0,1% m.v. + 1 digit)
    • voltage range: 50... 500 V

    Electrical safety:

    • type of insulation: double, according EN 61010, 61557:2007 - 01
    • measurement category: III 600 V (CAT IV 300 V)
    • protectin class acc. to EN 60529: IP67

    Other technical data:

    • power supply: package of batteries (AA, 4 pcs.)
    • batteries performance (short-circuit loop): min.5000 measurements

    Rated operational conditions:

    • operating temperature: 0...+50°C
    • humidity: 20 - 80%
    • rated mains voltage: 220/380 V, 230/400 V, 240/415 V

    "m.v. = measured value"

  • Files

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