Multifunctional Electrical Installation Tester

MI 3155 EurotestXD

Electrical Installation Safety

Product Overview

The MI 3155 EurotestXD is Metrel's newest flagship multi-functional measuring instrument, designed for industrial testing. It features an ergonomic design, an intuitive user interface, a memory organizer, and programmable AUTO SEQUENCES managed via a large color touch screen. It complies with standards like IEC/EN 61557 and IEC/EN/HD 60364-4-41, performing TRMS current measurements, RCD tests, line and loop impedance tests (3/4 wires), and earth resistance measurements. It also supports on-line voltage monitoring, phase sequence testing, varistor testing, PI/DAR calculation, luminance measurement, discharge time testing, ISFL measurements, IMD tests, and functional/visual inspections.

[Image: Front view of the Metrel MI 3155 EurotestXD tester, showing a large color touch screen displaying the main menu with options like Single Tests, Memory Organizer, Auto Sequences, and General Settings. The device has a rugged, ergonomic design with blue and black casing.]

Measuring Functions

Live Transformer's Impedance Measurement with Four Wire Test
Hi-precision Short Circuit Current evaluation with Calculated Hot factor
3-wire test of PE (RPE function) without extension lead conductor
Autotest insulation function between L-N, N-PE and L-PE (R ISO ALL function)
4 wire continuity test
Insulation resistance with DC voltage from 50 V to 2500 V and PI, DAR calculation
Varistor test
Continuity of PE conductors with 200 mA DC test current with polarity change
Continuity of PE conductors with 7 mA test current without RCD tripping
2-wire and 3-wire high-current loop impedance (L-PE) measurement
3-wire loop impedance (L-PE) measurement with Trip Lock RCD function
Touch voltage / Contact voltage measurement with external P/S probe
2-wire and 3-wire line impedance (L-L, L-N) measurement
1-phase / 3-phase TRMS voltage and frequency measurements
Line, loop and RCD measurements at frequency range 16 ... 400 Hz
Phase sequence
Power and THD measurement (up to the 12th harmonic)
RCD testing (general and selective, type AC, A, F, B, B+, MI RCD, EV RCD, PRCD, PRCD-K, PRCD-S)
Earth resistance (3-wire and 2-clamps method)
Specific earth resistance with Ro-adapter (option)
TRMS leakage and load currents (option)
First fault leakage current (ISFL)
Testing of Insulation Monitoring Devices (IMDs)
Machine mode support with time discharge
Illumination (option)
High resolution Loop impedance (mΩ) (option)
EVSE (Electrical Vehicle Supply Equipment) support (option)
Determining location of cables (option)
QR and/or barcode scanner support (option)

Key Features

Programmable AUTO SEQUENCES.
Predefined profile dependent AUTO SEQUENCES.
Predefined Automatic tests: Auto TT (U, ZIn, Zs, Uc); Auto TN/RCD (U, ZIn, Zs, Rpe); Auto TN (U, ZIn, Zlpe, Rpe); Auto IT (U, ZIn, Isc, Isfl, IMD).
High resolution colour touch screen, 4.3" TFT.
Functional inspections.
Visual inspections.
Custom inspections (visual and functional) which may be incorporated into AUTO SEQUENCES.
EVSE AUTO SEQUENCES and function inspections.
Machine functional and visual inspections.
Built-in help screens for referencing on site.
Built-in fuse tables for automatic evaluation of the line / loop impedance result.
Monitoring of all 3 voltages in real-time.
Automatic polarity reversal on continuity test.
Automated RCD testing procedure (RCD AUTO).
Automated Impedance testing procedure (Z AUTO).
Measurement filtering according to the selected area group.
Built-in charger and rechargeable batteries as standard accessory.
BT communication with PC, Android tablets and smart phones via built-in BT.
PC SW Metrel ES Manager (structure and report creation, data upload/download).
Optional aMESM Android app (structure and report creation, data upload/download).

Technical Specifications

Function	Measuring range	Resolution	Accuracy
CONTINUITY	Test Current 7 mA 2-wire	0.00 Ω ... 19.99 Ω	0.1 Ω	±(5% of r. + 3 digits)
	20.0 Ω ... 1999 Ω	1 Ω	±(5% of r. + 3 digits)
	Test Current 200 mA 2-wire, 4-wire	0.00 Ω ... 19.99 Ω	0.01 Ω	±(3% of r. + 3 digits)
	20.0 Ω ... 199.9 Ω	0.1 Ω	±(5% of r.)
	200.0 Ω ... 1999 Ω	1 Ω	±(5% of r.)
INSULATION RESISTANCE	R iso, R iso all ¹ Test Voltage 50/100/250 V	0.00 MΩ ... 19.99 MΩ	0.01 MΩ	±(5% of r. + 3 digits)
	20.0 MΩ ... 99.9 MΩ	0.1 MΩ	±(10% of r.)
	100.0 MΩ ... 199.9 MΩ	0.1 MΩ	±(20% of r.)
	R iso, R iso all ¹ Test Voltage 500/1000 V	0.00 MΩ ... 19.99 MΩ	0.01 MΩ	±(5% of r. + 3 digits)
	20.0 MΩ ... 199.9 MΩ	0.1 MΩ	±(5% of r.)
	200 MΩ ... 999 MΩ	1 MΩ	±(10% of r.)
	R iso, R iso all ¹ Test Voltage 2500 V	0.00 MΩ ... 19.99 MΩ	0.01 MΩ	±(5% of r. + 3 digits)
	20.0 MΩ ... 199.9 MΩ	0.1 MΩ	±(5% of r.)
	200 MΩ ... 999 MΩ	1 MΩ	±(10% of r.)
	1.00 GΩ ... 19.99 GΩ	0.01 GΩ	±(10% of r.)
DAR, PI	0.01 ... 9.99	0.01	±(5% of r. + 2 digits)
	10.0 ... 100.0	0.1	±(5% of r.)
Varistor test AC, DC ²	0 V ... 1000 V (DC)	1 V	±(3% of r. + 3 digits)
	0 V ... 625 V (AC)		(-0%/+15%) of r. ± 10 digits
RCD Uc	0.00 V ... 19.99 V	0.1 V	(-0%/+15%) of r.
	20.0 V ... 99.9 V
RCD (t), RCD I Ramp	0.00 ms ... 40.0 ms	0.1 ms	±1 ms
	0.0 ms ... max. time		+3 ms
	0.2xIΔN ... 1.1xIΔN (AC, MI, EV a.c.)	0.05xIΔN	±0.1xIΔN
	0.2xIΔN ... 1.5xIΔN (A, IΔN ≥30 mA)
	0.2xIΔN ... 2.2xIΔN (A, IΔN <30 mA)
	0.2xIΔN ... 2.2xIΔN (B, MI, EV d.c.)
IMPEDANCE	Zline (L-L, L-N), Ipsc, Zline 4-wire ³	0.00 Ω ... 9.99 Ω	0.01 Ω	±(3% of r. + 3 digits)
	10.0 Ω ... 99.9 Ω	0.1 Ω
	100 Ω ... 999 Ω	1 Ω	±(10% of r.)
	1.00 kΩ ... 9.99 kΩ	10 Ω
	Zloop (L-PE), Ipfc, Zloop 4-wire ³	0.00 Ω ... 9.99 Ω	0.01 Ω	±(3% of r. + 3 digits)
	10.0 Ω ... 99.9 Ω	0.1 Ω
	100 Ω ... 999 Ω	1 Ω	±(10% of r.)
	1.00 kΩ ... 9.99 kΩ	10 Ω
	Zs RCD ⁴
VOLTAGE	TRMS (0, 14 ... 500 Hz)	0 ... 550 V	1 V	±(2% of r. + 2 digits)
	Frequency	0.00 Hz .. 9.99 Hz	0.01 Hz	±(0.2% of r. + 1 digits)
		10.0 Hz ... 499.9 Hz	0.1 Hz
CURRENT	TRMS, AC with A 1018, range=20 A	0.0 mA ... 99.9 mA	0.1 mA	±(5% of r. + 5 digits)
	100 mA ... 999 mA	1 mA	±(3% of r. + 3 digits)
	1.00 A ... 19.99 A	0.01 A	±(3% of r.)
	TRMS, AC with A 1019, range=20 A	0.0 mA ... 99.9 mA	0.1 mA	Indicative
	100 mA ... 999 mA	1 mA	±(5% of r.)
	1.00 A ... 19.99 A	0.01 A	±(3% of r.)
	TRMS, AC/DC with A 1391, range=40 A	0.00 A ... 1.99 A	0.01 A	±(3% of r. + 3 digits)
	2.00 A ... 19.99 A	0.01 A	±(3% of r.)
	20.0 A ... 39.9 A	0.1 A	±(3% of r.)
	TRMS, AC/DC with A 1391, range = 300 A	0.00 A ... 19.99 A	0.01 A	Indicative
	20.0 A ... 39.9 A	0.1 A	Indicative
	40.0 A ... 299.9 A	0.1 A	±(3% of r. + 5 digits)
EARTH RESISTANCE	3 wire ⁵	0.00 Ω ... 19.99 Ω	0.01 Ω	±(5% of r. + 5 digits)
	20.0 Ω ... 199.9 Ω	0.1 Ω
	200.0 Ω ... 9999 Ω	1 Ω
	2 clamp	0.00 Ω ... 19.99 Ω	0.01 Ω	±(10% of r. + 10 digits)
	20.0 Ω ... 30.0 Ω	0.1 Ω	±(20% of r.)
	30.1 Ω ... 39.9 Ω	0.1 Ω	±(30% of r.)
Specific earth resistance	0.0 Ωm ... 99.9 Ωm	0.1 Ωm	±(5% of r.) for Re 1 Ω ... 1999kΩ
	100 Ωm ... 999 Ωm	1 Ωm	±(10% of r.) for Re 2 kΩ ... 19.99kΩ
	1.00 kΩm ... 9.99 kΩm	0.01 kΩm	±(20% of r.) for Re > 20 kΩ
	10.0 kΩm ... 99.9 kΩm	0.1 kΩm
	100 kΩm ... 9999 kΩm	1 kΩm
POWER	Power (P, S, Q)	0.00 W (VA, Var) ... 99.9 kW (kVA, kVar)	0.1% ... 99.9%
	Power factor	-1.00 ... 1.00
HARMONICS	Voltage THD	0.1 % ... 99.9 %	0.1% ... 99.9%
	Voltage harmonics	0.1 V ... 500 V
	Voltage THD	0.1 % ... 99.9 %
	Current harmonics and Current THD	0.00 A ... 199.9 A	0.1 mA	±(5% of r. + 3 digits)
FIRST FAULT LEAKAGE CURRENT (ISFL)		0.0 mA ... 19.9 mA	0.1 mA
IMD TEST	Threshold indicative insulation resistance	5 ... 640 kΩ	5 kΩ	Indicative values, up to 128 steps
ILLUMINANCE	Type B	0.01 lux ... 19.99 lux	0.01 lux	±(5% of r. + 2 digits)
	20.0 lux ... 199.9 lux	0.1 lux	±(5% of r.)
	200 lux ... 1999 lux	1 lux	±(10% of r. + 3 digits)
	2.00 klux ... 19.99 klux	10 lux	±(10% of r.)
	Type C	0.01 lux ... 19.99 lux	0.01 lux	±(5% of r. + 2 digits)
	20.0 lux ... 199.9 lux	0.1 lux	±(5% of r. + 3 digits)
	200 lux ... 1999 lux	1 lux	±(10% of r. + 3 digits)
	2.00 klux ... 19.99 klux	10 lux	±(10% of r.)
DISCHARGING TIME	Discharging time	0.0 s ... 10.0 s	0.1 s	±(5% of r. + 2 digits)
	Peak voltage	0 V ... 550 V	1 V	±(5% of r. + 3 digits)
GENERAL	Power supply	7.2 V (4400 mAh Li-Ion battery pack)
	Overvoltage category	600 V CAT III; 300 V CAT IV
	Protection class	double insulation
	COM port	BT, USB, RS232
	Display	Colour TFT display, 4.3 inch, 480 x 272 pixels
	Weight	1.78 kg
	Size (l x h x w)	252 x 111 x 165 mm

Standards

Functionality: EN 61557; DIN 5032
Other reference standards for testing: IEC/EN/HD 60364-4-41; IEC/EN 61008; IEC/EN 61009; BS 7671; AS/NZ 3017
Electromagnetic compatibility (EMC): IEC/EN 61326-1
Safety: IEC/EN 61010-1; IEC/EN 61010-031; IEC/EN 61010-2-030; IEC/EN 61010-2-032

Applications

Testing of TT, TN and IT systems
Testing of single and multiphase systems
Initial and periodic testing of domestic and industrial installations
LV Installation safety testing
Maintenance
Lightning installations
Testing on high and low frequency installations (industrial, aircraft, railway, mining, chemistry, ferry boat)
Construction sites
Mobile LV Generator Units
Machine and switchboard testing
Medical installation testing
Fire brigades, ambulance, military and police vehicles
Mobile Video/Audio, Concert Halls, Fairs, Playgrounds
Electrical Vehicle Supply Equipment (EVSE) testing
Observation of insulation trends

Optional Accessories

A 1569 Power supply adapter 12 V / 3 A
A 1567 4400mAh battery pack
A 1568 8800mAh battery pack
A 1551 Small carrying bag with Metrel logo
A 1552 Large carrying bag with Metrel logo
P 1101 BASIC to PRO licence key upgrade for Metrel ES Manager
A 1401 BLK Tip commander
A 1018 Current clamp (low range, leakage)
A 1019 Current clamp
A 1391 AC/DC Current clamp
A 1172 Luxmeter sensor, type B (PS/2)
A 1173 Luxmeter sensor, type C (PS/2)
A 1191 Receiver R10K
A 1192 Selective probe for R10K
A 1437 Test lead with Kelvin probe
S 2027 Earth test set, 3-wire, 50 m
S 2058 Insulation test plates
A 1012 Test lead, green, 4 m
A 1154 Test lead, black, 4 m
A 1026 Test lead, red, 20 m
A 1153 Test lead, black, 20 m
A 1164 Test lead, black, 50 m
S 2012 Continuity test lead, 10 m, 2 pcs (red, black)
S 2025 Test lead, 1.5 m, 2 pcs (black, red)
A 1198 Magnetic contact probe
A 1201 Insulated rod for CONTINUITY measurement
A 1202 Additional extension part for A 1201
A 1532 EVSE adapter
A 1199 Ro-adapter
A 1143 Euro Z 290 A

Ordering Information

Standard Set MI 3155 ST

Instrument MI 3155 EurotestXD
4400 mAh battery pack
Power supply adapter 12 V / 3 A
Plug commander, 1.5 m
Test lead, 4-wire, 1.5 m
Test lead, 3-wire, 1.5 m
Test lead, 2-wire, 2,5 kV, 1.5 m
Test probe, 4 pcs (black, blue, green, red)
Crocodile clip, 6 pcs (black - 2 pcs, blue - 1 piece, green - 1 piece, red - 2 pcs)
Earth set 20 m
USB cable
Soft carrying bag
Soft carrying neck belt
Metrel ES Manager BASIC license*
Short instruction manual
Instruction manual (CD)
Guide for testing and verification of Low voltage installations (CD)
Calibration certificate
Metrel ES Manager (program installation) A 1481 (CD)

Euro Set MI 3155 EU

MI 3155 ST
8800 mAh battery pack instead of 4400 mAh battery pack
Current clamp A 1018 (low range, leakage)
Current clamp A 1019
Metrel ES Manager PRO license*
Metrel aMESM Android app
*Metrel ES Manager can be downloaded free of charge from Metrel Web server.

Manufacturer Information

METREL D.D.
Measuring and Regulation Equipment Manufacturer
Ljubljanska 77, SI-1354 Horjul, Slovenia
T +386 (0)1 75 58 200, F +386 (0)1 75 49 226
metrel@metrel.si, www.metrel.si

Note! Photographs in this catalogue may slightly differ from the instruments at the time of delivery. Subject to technical change without notice.

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