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.

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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
Calibration certificate
Short instruction manual
Instruction manual*
PC Software SW 0101 EuroLink PRO*

*SW 0101 EuroLink PRO and all documentation can be downloaded free of charge from Metrel Web server or Metrel Documentation center

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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.