MI 3125 EurotestCOMBO

Multifunctional testers

The MI 3125 is a multifunctional installation safety tester which is distinguished by lightweight design and usability. Integrated characteristics of fuses and RCDs, help screens, red and green LEDs for PASS / FAIL evaluation of test results online voltage monitor make the MI 3125 ideally suited for fast and easy testing of electrical installations.

Sets

MI 3125 Standard set

  • Instrument MI 3125 EurotestCOMBO
  • Set of carrying straps
  • Test probe, 3 pcs (blue, black, green)
  • Crocodile clip, 3 pcs (blue, black, green)
  • Power supply adapter + 6 rechargeable batteries NiMH, type AA
  • Short instruction manual
  • Instruction manual and handbook on CD
  • Calibration certificate
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Optional accessories

Standards applied

Building LV Installation

  • EISinsp Competences: Low Voltage Electrical Installation Safety Inspection
  • EISc Competences: Low Voltage Electrical Installation Safety for Contractors and Maintainers
  • IEC/EN 60364 Electrical Installations for Buildings series
  • IEC/EN 60364-6 Electrical Installations for Buildings - Verification
  • IEC/EN 60364-4-41 Electrical Installations for Buildings - Protection against electric shock
  • IEC/EN 60364-5-52 Electrical Installations for Buildings - Wiring system
  • IEC/EN 60755 General safety requirements for residual current operated protective devices
  • IEC/EN 61008-1 Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCBs)
  • IEC/EN 61557 Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - series
  • IEC/EN 61557-1 Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - Part 1: General requirements
  • IEC/EN 61557-6 Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - Part 6: Effectiveness of residual current devices (RCD) in TT, TN and IT systems
  • VDE 0413 (IEC 61557) Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - series
  • AS / NZ 3017 Electrical installations – Verification guidelines
  • AS / NZ 3018 Electrical installations - Domestic installations
  • BS 7671 IEE Wiring Regulations (18th edition)
  • CEI 64.8 V4 rated electrical equipment not exceeding 1,000 VAC and 1,500V DC current

Earthing and lightning protection 

  • LPSinsp Competences: Lightning Protection of Buildings Inspection
  • LPSc Competences: Lightning Protection of Buildings for Contractors and Maintainers
  • IEC 62305 Protection against lightning - series

Instrument safety towards user

  • Directive EMC 89/336/EE on electromagnetic compatibility
  • IEC/EN 61010 Safety requirements for electrical equipment for measurement, control, and laboratory use - series
  • IEC/EN 61010-2-033 Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-033: Particular requirements for hand-held multimeters and other meters for domestic and professional use, capable of measuring mains voltage

EMC safety

  • IEC/EN 61326 Electrical equipment for measurement, control and laboratory use - EMC requirements - series

Properties

Measuring functions

  • Insulation resistance with DC voltage.
  • Continuity of PE conductors with 200 mA test current with polarity change.
  • Line impedance.
  • Loop impedance.
  • Loop impedance with Trip Lock RCD function.
  • TRMS voltage and frequency.
  • Phase sequence.
  • RCD testing (general and selective, type AC, A).

Key features

  • LED Pass/Fail indicators: two LED indicators for PASS / FAIL evaluation of test results are placed on both sides of the LCD.
  • Help screens: instrument comes complete with built-in help screens for referencing on site.
  • Built-in fuse tables: this unique feature allows automatic evaluation of the line / loop impedance compared to the regulations.
  • Online voltage monitoring: monitors all 3 voltages in realtime.
  • Upgradeable: if changes occur to the regulations, upgrades can be made to the firmware to keep the unit up to date.
  • Polarity swap: automatic polarity re-versal on continuity test.
  • Insulation range: wide range of insulation test voltages from 50 V to 1000 V, reading up to 1000 MΩ.
  • Trip Lock function: Zs (RCD) function performs a loop impedance test without tripping the RCD.
  • Multisystem testing: tests on single and multiphase TT and TN systems.
  • Built-in charger & rechargeable batteries: unit has a built-in charging circuit and comes complete with a set of rechargeable NiMH batteries.
  • RCD auto: automated RCD testing procedure significantly reduces test time.

Technical data

  • Dimensions: 140 x 80 x 230 mm
  • Mass: 1.0 kg

Applications

Preventative maintenance

  • Earth continuity and insulation testing
  • Line and loop impedance and RCD testing
  • Basic earth resistance
  • Voltage measurements
  • Current measurements
  • Frequency measurements

Troubleshooting

  • Installation troubleshooting

Specifications


Print

Downloads

Datasheet Language Version Release Notes Type Size Download
MI 3125 EurotestCOMBO en 1.0 28.01.2016 pdf 378.76 KB
Manual Language Version Release Notes Type Size Download
MI 3125 BT EurotestCOMBO en 2.7.10 23.01.2023 20 751 484 pdf 2.7 MB Login
MI 3125 / MI 3125 BT Multi-Language 2023 20.01.2023 zip 13.43 MB Login
Fuse tables guide en 1.11.1 20.01.2023 pdf 350.79 KB Login

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