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Demonstration board
Electrical installations
MI 2166
User Manual
Version 1.1, Code No. 20 750 750

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July 28, 2025

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Summary of Contents for METREL MI 2166

  • Page 1 Demonstration board Electrical installations MI 2166 User Manual Version 1.1, Code No. 20 750 750...
  • Page 2 Mark on your equipment certifies that this equipment meets the requirements of the EU (European Union) concerning safety and interference causing equipment regulations © 2005 METREL No part of this publication may be reproduced or utilized in any form or by any means without permission in writing from METREL.
  • Page 3: Table Of Contents

    MI 2166 Demonstration board Table of contents 1. Introduction ....................... 4 1.1. General Description....................4 1.2. General warnings ....................4 1.3. Meaning of warning/information symbols on front panel........4 1.4. List of measurements that can be demonstrated..........5 2. Before connecting demonstration board to mains supply........5 3.
  • Page 4: Introduction

    MI 2166 Demonstration board Electrical installations 1. Introduction 1.1. General Description Demonstration board simulates common electrical installation usually met in individual house or apartment. This board is to be used preferably by sales personnel when demonstrating operation of electrical installation test equipment. It is placed into a practical plastic carrying case.
  • Page 5: List Of Measurements That Can Be Demonstrated

    MI 2166 Demonstration board Electrical installations Protection circuit inside Demonstration board cuts mains voltage at input stage of the board if phase line is not applied to appropriate terminal or a voltage difference between neutral line and protective conductor is higher than 30 V.
  • Page 6: Front Panel Description

    MI 2166 Demonstration board Electrical installations 3. Front panel description 4. Faults simulation The following faults on electrical installation can be simulated: Approx. Approx. parameter Switch Parameter parameter value value without fault with fault Ω Ω Earth resistance R = 95...
  • Page 7: Continuity Of Protective Conductor

    MI 2166 Demonstration board Electrical installations 5. Measurements 5.1. Continuity of protective conductor Warning: Disconnect mains plug and switch off the RCD (protection device)! Start conditions: • All »fault« switches in OK position! Measurement location Nominal value 0.1 Ω PE collector – PE terminal of mains outlet 0.1 Ω...
  • Page 8: Insulation Resistance

    MI 2166 Demonstration board Electrical installations 5.2. Insulation Resistance Warning: Disconnect mains plug and switch off the RCD (protection device)! Start conditions: • Switch off the lamp! • All »fault« switches in OK position! Measurement location Nominal value L terminal of mains outlet – N terminal of mains outlet >...
  • Page 9: Earth Resistance

    MI 2166 Demonstration board Electrical installations 5.3. Earth resistance Warning: Disconnect mains plug and switch off the RCD (protection device)! Start conditions: • All »fault« switches in OK position! Measurement location Nominal value 2.7 Ω H terminal – S0 / S+d / S-d+ – E/ES (jumper TN/TT/AUX in TT position, jumper JUMP inserted) 2.8 Ω...
  • Page 10 MI 2166 Demonstration board Electrical installations Measurement location Nominal value 95.2 Ω PE collector – S0 / S+d / S-d – E/ES (jumper TN/TT/AUX removed, R switch in OK position) E/LOOP 2000 Ω PE collector – S0 / S+d / S-d – E/ES...
  • Page 11: Earth Resistance Using Two-Clamp Method

    MI 2166 Demonstration board Electrical installations 5.4. Earth resistance using two-clamp method Warning: Disconnect mains plug and switch off the RCD (protection device)! Start conditions: • All »fault« switches in OK position! Measurement location Nominal value 11.5 Ω Current loop (jumper TN/TT/AUX removed, Jumper JUMP inserted) ≈...
  • Page 12: Specific Earth Resistance

    MI 2166 Demonstration board Electrical installations 5.5. Specific earth resistance Warning: Disconnect mains plug and switch off the RCD (protection device)! Measurement location Nominal value 103 Ωm E – ES – S – H (“a” switch in 2 m position) 471 Ωm...
  • Page 13: Loop Resistance

    MI 2166 Demonstration board Electrical installations 5.7. Loop resistance Start conditions: • Connect mains plug and switch on the RCD (protection device)! • All »fault« switches in OK position! TN position TT position Note! The measurement of loop resistance will cause the RCD on front panel to trip if test current is higher or equal than declared nominal one, i.e.
  • Page 14: Contact Voltage And Trip-Out Time / Current Of Rcd Protection Device

    MI 2166 Demonstration board Electrical installations 5.8. Contact voltage and trip-out time / Current of RCD protection device Start conditions: • Connect mains plug and switch on the RCD (protection device)! • All »fault« switches in OK position! Contact voltage ∆N...
  • Page 15: Technical Data

    MI 2166 Demonstration board Electrical installations 6. Technical data Nominal mains voltage.......230 V / 50 Hz Power consuption........7 W Mains cord………………………………….. single-phase Dimensions (width × length × height) ..450 × 330 × 110 mm Weight............3.45 kg Protection class..........I (protective earth conductor) Over current category ........CAT II 300 V...
  • Page 16: Standard Set

    MI 2166 Demonstration board Electrical installations 8. Standard set Upon receipt of Demonstration board it is advisable to check the content of the delivery. The following items have to be included: • Demonstration board. • Two jumpers. • Mains cable.

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