Loop Impedance Meter | MZC-304

Loop Impedance Meter MZC-304
Impedance Loop Meter front view of screen
Impedance Loop Meter Angle view
Impedance Loop Meter Angle view

Loop Impedance Meter | MZC-304

R16,170.00 ex vat

Safety Rating Cat IV at 300V label  Safety Rating Cat III at 600V label  Ingress protection IP67 label

Loop Impedance Meter – Overview

The MZC-304 meter is designed for testing the protection against electric shock in the mains systems. The meter is used to make measurements which determine the electrical installation safety level.

Loop Impedance Meter – Features

  • 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 rest
  • Low current resistance measurement with acoustic signalling
  • The measurements are possible in installations 220/30 V, 240/415 V with frequency range 45…65 Hz
  • Memory of 10 banks of 99 cells each (min. 10000 records)
  • Radio wireless interface communication

Available on back-order

SKU: WMGBMZC304F Categories: , Tags: , , ,
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Description

Loop Impedance Meter | MZC-304

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

*calculated 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 compensation
  • 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
  • acoustic 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)
  • protection 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

Loop Impedance Meter | MZC-304

Brand

Sonel

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