OPERATING MANUAL FAULT LOOP IMPEDANCE METER MZC -20E SONEL S.A. ul. Wokulskiego 11 58-100 Świdnica, Poland Version 1.00 01.12.2016...
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MIC-20 meter is a modern, high quality, easy to use and safe measuring device. Please acquaint yourself with this manual in order to avoid measuring errors and prevent possible problems in opera- tion of the meter.
Safety MZC-20E meter is designed for performing check tests of protection against electric shock in mains systems. The meter is used for making measurements and providing results to determine safe- ty of electrical installations. Therefore, in order to provide conditions for correct operation and accura- cy of obtained results, the following recommendations must be observed: ...
Leave the parameter settings without valida- tion using the on/off button and go to the me- ter readiness to measure. Set the parameters according to the following algorithm: MZC-20E OPERATING MANUAL version 1.00...
10 seconds. Press the up down arrow to restore the last measurement result. Re-press any of the arrows to recall the value of short-circuit current I and the real and imaginary component of the measured impedance (R, X MZC-20E OPERATING MANUAL version 1.00...
Using cables terminated with banana plugs, before starting to measure, select the appropriate length of the phase conductor, compatible with the length of cable used for measurement. Measuring lead length setting Cables from known manufacturers and selection of the correct length guarantees the de- clared measurement accuracy. MZC-20E OPERATING MANUAL version 1.00...
2.5.2. Connect test leads according to the drawing a) for measurement in the L-N cir- cuit b) for measurement in the L-L cir- cuit b) for measurement in L-PEN cir- cuit MZC-20E OPERATING MANUAL version 1.00...
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(R, X may be read when pressing the up down arrow buttons for indications dis- played in reverse order. Indication: Standby Cable length Short-circuit current I R fault loop resistance fault loop reactance MZC-20E OPERATING MANUAL version 1.00...
Measuring range is exceeded. Measurement of resistance-to-earth The MZC-20E meter can be used for approximate measurements of resistance to earth For this purpose, the phase conductor is used as a secondary source of voltage which generates test current. Connection diagram for the instrument for such measurement in the TN-C, TN-S and TT systems is shown in the figure below.
Replacing (rechargeable) batteries The MZC-20E is powered by four LR6 batteries or AA size rechargeable batteries. The (recharge- able) batteries are placed in the compartment at the bottom of the enclosure.
Too low temperature should prevent starting the process of charging, which might irreparably damage rechargeable batteries. An increase of the temperature of the rechargeable batteries is a signal to stop charging and is a typical phenomenon. However charging at a high ambi- MZC-20E OPERATING MANUAL version 1.00...
Worn-out electronic equipment should be sent to a collection point in accordance with the law of waste electrical and electronic equipment. Before the equipment is sent to a collection point, do not dismantle any elements. Observe local regulations concerning disposal of packages, waste batteries and accumulators. MZC-20E OPERATING MANUAL version 1.00...
accessories crocodile clip (CAT III 1000 V) – 1 pc (red K02 – WAKRORE20K02) test probes with banana socket (CAT III 1000 V) – 2 pcs(red – WASONREOGB1 and blue – WASONBUOGB1) MZC-20E OPERATING MANUAL version 1.00...
SONEL S.A. ul. Wokulskiego 11 58-100 Świdnica Poland tel. +48 74 858 38 60 fax +48 74 858 38 09 E-mail: export@sonel.pl Web page: www.sonel.pl Note: Service repairs must be performed only by the manufacturer. MZC-20E OPERATING MANUAL version 1.00...
11 Laboratory services Research and Calibration Laboratory of SONEL SA offers calibration of the following instruments used for electrical/non-electrical measurements: meters for electrical protective measurements: insulation resistance, impedance and resistance of short-circuit loops, earthing resistances and earth resistivity, RCD parameters and multi-functional...
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NOTES MZC-20E OPERATING MANUAL version 1.00...
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