SONEL - Fault Loop Impedance Meter MZC-20E - WMGBMZC20E

Fault loop impedance measurement with 0.01 resolution.
Operates in networks with voltages 220/380 V, 230/400 V,
240/415 V (operating range 180440 V).
Operating frequency 4565 Hz
Calculation of Ik fault current.
Automatic differentiation between phase and phase-to-phase voltage.
Possibility of applying test leads: 1.2 m, 5 m and longer.
Measurement with swapped L and N conductors.

datasheet_MZC-20E_EN_v3.02 Copy
Measurement of resistance (RS) and reactance (XS) components

Fault loop impedance measurement with 0.01 resolution.
Operates in networks with voltages 220/380 V, 230/400 V,
240/415 V (operating range 180440 V).
Operating frequency 4565 Hz
Calculation of Ik fault current.
Automatic differentiation between phase and phase-to-phase voltage.
Possibility of applying test leads: 1.2 m, 5 m and longer.
Measurement with swapped L and N conductors.
Measurement of resistance (RS) and reactance (XS) components

Additional features
Voltage measurement 0...440 V AC.
Power supply: batteries (4 x LR6) or rechargeable batteries (4 x NiMH).

Application
This meter is designed for measurements on objects protected by
circuit breakers with rating up to 63 A, where fault currents reach
1 kA, i.e. in housing industry, single and multi-family houses, office
buildings, small factories and all other facilities that are equipped
with low-voltage electrical systems. In addition, the meter is a useful
tool for maintenance services.

Technical specifications
Measurement functions Measurement
range
Display
range Resolution Accuracy
±(% m.v. + digits)
Voltage 0 V440 V 0 V440 V 1 V ±(2% m.v. + 2 digits)
Short-circuit loop parameters
2p method - standard current measurement
maximum current 26.7 A
from 0.24 200
acc. to EN 61557
0.00 200 from 0.01 from ±(2.5% m.v. + 3 digits)
Short-circuit current readings
2p method - standard current measurement
Calculated on the basis
of test ZS ranges and rated
voltages
1.15 A40 kA from 0.01 A
Calculated on the
basis of error
for fault loop
Safety and work conditions
Measuring category according to EN 61010 III 300 V
Ingress protection IP67
Type of insulation according to EN 61010-1 and EN 61557 double
Power supply
4x LR6 1.5 V alkaline battery
4x AA size NiMH rechargeable battery
Dimensions 220 x 102 x 61 mm
Weight 509 g
Operating temperature -10+50°C
Storage temperature -20+70°C
Humidity 2080%
Nominal temperature 23 ± 2°C
Reference humidity 40%60%
Other information
Quality standard development, design and production ISO 9001
The product meets the EMC (emission for industrial environment)
requirements according to standards
EN 61326-1
EN 61326-2-2