METREL EurotestXD MI 3155 User manual

EurotestXD
MI 3155
Instruction manual
Version 1.3.4, Code no. 20 752 716

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Distributor:
Manufacturer:
METREL d.d.
Ljubljanska cesta 77
1354 Horjul
Slovenia
web site: http://www.metrel.si
e-mail: [e-mail]
Mark on your equipment certifies that it meets requirements of all subjected EU regulations
© 2018 METREL
The trade names Metrel®, Smartec®, Eurotest®, Auto Sequence®are trademarks registered in Europe and
other countries.
No part of this publication may be reproduced or utilized in any form or by any means without
permission in writing from METREL.

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i. About the instruction manual
This Instruction manual contains detailed information on the EurotestXD, its key
features, functionalities and use.
It is intended for technically qualified personnel responsible for the product and its use.
Please note that LCD screenshots in this document may differ from the actual instrument
screens in details due to firmware variations and modifications.

MI 3155 EurotestXD Table of Contents
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Table of Contents
1General description..........................................................................................................8
1.1 Warnings and notes ....................................................................................................8
1.1.1 Safety warnings.......................................................................................................8
1.1.2 Markings on the instrument .....................................................................................9
1.1.3 Warnings related to safety of batteries ....................................................................9
1.1.4 Warnings related to safety of measurement functions .............................................9
1.1.5 Notes related to measurement functions ...............................................................10
1.2 Testing potential on PE terminal................................................................................13
1.3 Battery and charging of Li-ion battery pack ...............................................................15
1.3.1 Precharge..............................................................................................................16
1.3.2 Li –ion battery pack guidelines .............................................................................18
1.4 Standards applied.....................................................................................................19
2Instrument set and accessories.....................................................................................20
2.1 Standard set MI 3155 EurotestXD.............................................................................20
2.1.1 Optional accessories.............................................................................................20
3Instrument description...................................................................................................21
3.1 Front panel................................................................................................................21
3.2 Connector panel........................................................................................................22
3.3 Back side ..................................................................................................................23
3.4 Carrying the instrument.............................................................................................25
3.4.1 Secure attachment of the strap..............................................................................25
4Instrument operation......................................................................................................27
4.1 General meaning of keys ..........................................................................................27
4.2 General meaning of touch gestures...........................................................................28
4.3 Virtual keyboard........................................................................................................29
4.4 Display and sound.....................................................................................................30
4.4.1 Terminal voltage monitor.......................................................................................30
4.4.2 Battery indication...................................................................................................31
4.4.3 Measurement actions and messages....................................................................31
4.4.4 Result indication....................................................................................................33
4.4.5 Auto Sequence®result indication..........................................................................33
4.5 Instruments main menu.............................................................................................34
4.6General Settings .......................................................................................................35
4.6.1 Language..............................................................................................................36
4.6.2 Power Save...........................................................................................................36
4.6.3 Date and time........................................................................................................37
4.6.4 Workspace manager .............................................................................................37
4.6.5 Auto Sequences  groups .....................................................................................37
4.6.6 User accounts.......................................................................................................38
4.6.7 Profiles..................................................................................................................42
4.6.8 Settings.................................................................................................................42
4.6.9 Devices .................................................................................................................44
4.6.10 Initial Settings....................................................................................................45
4.6.11 About.................................................................................................................46
4.7 Instrument profiles.....................................................................................................47
4.8 Workspace Manager.................................................................................................48
4.8.1 Workspaces and Exports.......................................................................................48

MI 3155 EurotestXD Table of Contents
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4.8.2 Workspace Manager main menu...........................................................................48
4.8.3 Operations with Workspaces.................................................................................49
4.8.4 Operations with Exports ........................................................................................49
4.8.5 Adding a new Workspace......................................................................................51
4.8.6 Opening a Workspace...........................................................................................52
4.8.7 Deleting a Workspace / Export..............................................................................52
4.8.8 Importing a Workspace..........................................................................................53
4.8.9 Exporting a Workspace .........................................................................................54
4.9 Auto Sequence® groups ...........................................................................................55
4.9.1 Auto Sequence®groups menu..............................................................................55
5Memory Organizer ..........................................................................................................57
5.1 Memory Organizer menu...........................................................................................57
5.1.1 Measurement statuses..........................................................................................57
5.1.2 Structure Objects...................................................................................................58
5.1.3 Selecting an active Workspace in Memory Organizer............................................60
5.1.4 Adding Nodes in Memory Organizer......................................................................61
5.1.5 Operations in Tree menu.......................................................................................62
5.1.6 Searching in Memory Organizer............................................................................80
6Single tests......................................................................................................................83
6.1 Selection modes........................................................................................................83
6.1.1 Single test (measurement) screens.......................................................................84
6.1.2 Setting parameters and limits of single tests..........................................................86
6.1.3 Single test start screen..........................................................................................87
6.1.4 Single test screen during test ................................................................................88
6.1.5 Single test result screen........................................................................................89
6.1.6 Editing graphs (Harmonics)...................................................................................91
6.1.7 Single test (inspection) screens.............................................................................92
6.1.8 Help screens.........................................................................................................96
6.1.9 Recall single test results screen............................................................................97
7Tests and measurements...............................................................................................98
7.1 Voltage, frequency and phase sequence...................................................................98
7.2 R iso –Insulation resistance....................................................................................102
7.3 R iso all –Insulation resistance...............................................................................104
7.4 The DAR and PI diagnostic.....................................................................................106
7.5 Varistor test.............................................................................................................108
7.6 R low –Resistance of earth connection and equipotential bonding.........................110
7.7 R low 4W.................................................................................................................111
7.8 Continuity –Continuous resistance measurement with low current.........................113
7.8.1 Compensation of test leads resistance................................................................114
7.9 Testing RCDs..........................................................................................................116
7.9.1 RCD Uc –Contact voltage ..................................................................................117
7.9.2 RCD t –Trip-out time...........................................................................................119
7.9.3 RCD I –Trip-out current......................................................................................119
7.10 RCD Auto –RCD Auto test .....................................................................................121
7.11 Z loop –Fault loop impedance and prospective fault current...................................124
7.12 Z loop 4W –Fault loop impedance and prospective fault current.............................127
7.13 Zs rcd –Fault loop impedance and prospective fault current in system with RCD...129
7.14 Z loop m–High precision fault loop impedance and prospective fault current......132
7.15 Z line –Line impedance and prospective short-circuit current.................................135
7.16 Z line 4W –Line impedance and prospective short-circuit current...........................138
7.17 Z line m–High precision line impedance and prospective short-circuit current ....140
7.18 Voltage Drop...........................................................................................................143

MI 3155 EurotestXD Table of Contents
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7.19 Z auto - Auto test sequence for fast line and loop testing ........................................146
7.20 Earth –Earth resistance (3-wire test)......................................................................148
7.21 Earth 2 clamp –Contactless earthing resistance measurement (with two current
clamps) ...................................................................................................................150
7.22 Ro –Specific earth resistance.................................................................................151
7.23 Power......................................................................................................................153
7.24 Harmonics...............................................................................................................155
7.25 Currents..................................................................................................................157
7.26 ISFL –First fault leakage current.............................................................................159
7.27 IMD –Testing of insulation monitoring devices........................................................161
7.28 Rpe –PE conductor resistance...............................................................................165
7.29 Illumination..............................................................................................................167
7.30 Discharging time .....................................................................................................168
7.31 AUTO TT –Auto test sequence for TT earthing system..........................................171
7.32 AUTO TN (RCD) –Auto test sequence for TN earthing system with RCD...............173
7.33 AUTO TN –Auto test sequence for TN earthing system without RCD.....................175
7.34 AUTO IT –Auto test sequence for IT earthing system.............................................177
7.35 Locator....................................................................................................................179
7.36 Visual and Functional inspections ...........................................................................181
8Auto Sequences®.........................................................................................................182
8.1 Selection of Auto Sequences®................................................................................182
8.1.1 Selecting an active Auto Sequence®group in Auto Sequences®menu..............182
8.1.2 Searching in Auto Sequences®menu.................................................................183
8.1.3 Organization of Auto Sequences®in Auto Sequences®menu ...........................185
8.2 Organization of an Auto Sequence® .......................................................................185
8.2.1 Auto Sequence® view menu ...............................................................................186
8.2.2 Step by step execution of Auto Sequences®.......................................................188
8.2.3 Auto Sequence®result screen............................................................................190
8.2.4 Auto Sequence®memory screen........................................................................191
9Communication.............................................................................................................193
9.1 USB and RS232 communication.............................................................................193
9.2 Bluetooth communication........................................................................................193
9.3 Bluetooth and RS-232 communication with scanners..............................................194
10 Upgrading the instrument ............................................................................................195
11 Maintenance..................................................................................................................196
11.1 Fuse replacement ...................................................................................................196
11.2 Battery pack insertion / replacement .......................................................................197
11.3 Cleaning..................................................................................................................198
11.4 Periodic calibration..................................................................................................198
11.5 Service....................................................................................................................198
12 Technical specifications...............................................................................................199
12.1 R iso, R iso all –Insulation resistance.....................................................................199
12.2 Diagnostic test.........................................................................................................200
12.3 R low, R low 4W –Resistance of earth connection and equipotential bonding........200
12.4 Continuity –Continuous resistance measurement with low current.........................201
12.5 RCD testing.............................................................................................................201
12.5.1 General data....................................................................................................201
12.5.2 RCD Uc –Contact voltage...............................................................................202
12.5.3 RCD t –Trip-out time.......................................................................................202
12.5.4 RCD I –Trip-out current ..................................................................................203
12.5.5 RCD Auto........................................................................................................203

MI 3155 EurotestXD Table of Contents
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12.6 Z loop, Z loop 4W –Fault loop impedance and prospective fault current.................204
12.7 Zs rcd –Fault loop impedance and prospective fault current in system with RCD...205
12.8 Z loop m–High precision fault loop impedance and prospective fault current......205
12.9 Z line, Z line 4W –Line impedance and prospective short-circuit current ................206
12.10 Voltage Drop...........................................................................................................206
12.11 Z line m–High precision line impedance and prospective fault current................207
12.12 Z auto, AUTO TT, AUTO TN, AUTO TN (RCD), AUTO IT.......................................207
12.13 Rpe –PE conductor resistance...............................................................................207
12.14 Earth –Earth resistance (3-wire measurement) ......................................................208
12.15 Earth 2 clamp –Contactless earthing resistance measurement (with two current
clamps) ...................................................................................................................208
12.16 Ro –Specific earth resistance.................................................................................209
12.17 Voltage, frequency, and phase rotation...................................................................210
12.17.1 Phase rotation.................................................................................................210
12.17.2 Voltage / Online terminal voltage monitor ........................................................210
12.17.3 Frequency .......................................................................................................210
12.18 Varistor test.............................................................................................................211
12.19 Currents..................................................................................................................212
12.20 Power......................................................................................................................213
12.21 Harmonics...............................................................................................................213
12.22 ISFL –First fault leakage current.............................................................................214
12.23 IMD.........................................................................................................................214
12.24 Illumination..............................................................................................................214
12.25 Discharging time .....................................................................................................215
12.26 Auto Sequences® ...................................................................................................215
12.27 General data...........................................................................................................215
Appendix A Profile notes...............................................................................................217
A.1 Profile Austria (ATAF) .............................................................................................217
A.2 Profile Hungary (ATAG) ..........................................................................................218
A.3 Profile Finland (ATAH) ............................................................................................219
A.4 Profile France (ATAI)...............................................................................................220
A.5 Profile Switzerland (ATAJ).......................................................................................220
Appendix B Commanders (A 1314, A 1401)..................................................................221
B.1 Warnings related to safety................................................................................221
B.2 Battery.....................................................................................................................221
B.3 Description of commanders.....................................................................................221
B.4 Operation of commanders.......................................................................................222
Appendix C Locator receiver R10K...............................................................................223
Appendix D Structure objects.......................................................................................224
Appendix E Default list of Auto Sequences..................................................................227
Appendix F Programming of Auto Sequenceson Metrel ES Manager........................228
F.1 Auto SequenceEditor workspace.........................................................................228
F.2 Managing groups of Auto Sequences...................................................................229
F.3 Auto Sequence®Name, Description and Image editing..........................................232
F.4 Search within selected Auto Sequence®group.......................................................233
F.5 Elements of an Auto Sequence® ............................................................................234
F.5.1 Auto Sequence® steps....................................................................................234
F.5.2 Single tests......................................................................................................234
F.5.3 Flow commands ..............................................................................................234
F.5.4 Number of measurement steps........................................................................234

MI 3155 EurotestXD Table of Contents
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F.6 Creating / modifying an Auto Sequence®................................................................235
F.7 Description of flow commands.................................................................................236
F.8 Custom Inspections programming...........................................................................238
F.8.1 Creating and editing Custom Inspections ........................................................238
F.8.2 Applying Custom Inspections...........................................................................240

MI 3155 EurotestXD General description
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1 General description
1.1 Warnings and notes
Read before use
1.1.1 Safety warnings
In order to reach high level of operator safety while carrying out various measurements using the
EurotestXD instrument, as well as to keep the test equipment undamaged, it is necessary to
consider the following general warnings:
Read this user manual carefully, otherwise the use of the instrument may be
dangerous for the operator, the instrument or for the equipment under test!
Consider warning markings on the instrument (see next chapter for more
information).
If the test equipment is used in a manner not specified in this user manual, the
protection provided by the equipment could be impaired!
Do not use the instrument or any of the accessories if any damage is noticed!
Regularly check the instrument and accessories for correct functioning to avoid
hazard that could occur from misleading results.
Regularly check the instrument and accessories for correct functioning to avoid
hazard that could occur from misleading results.
Consider all generally known precautions in order to avoid risk of electric shock
while dealing with hazardous voltages!
Always check for the presence of dangerous voltage on PE test terminal of
installation by touching the TEST key on the instrument or by any other method
before starting single test and Auto Sequence® measurements. Make sure that the
TEST key is grounded through human body resistance without any insulated
material between (gloves, shoes, insulated floors, pens,...). PE test could
otherwise be impaired and results of a single test or Auto Sequence® can mislead.
Even detected dangerous voltage on PE test terminal cannot prevent running of a
single test or Auto Sequence®. All such behaviour is regarded as misuse.
Operator of the instrument must stop the activity immediately and eliminate the
fault/connection problem before proceeding with any activity!
Use only standard or optional test accessories supplied by your distributor!
In case a fuse has blown follow the instructions in this manual in order to replace
it! Use only fuses that are specified!
Service, calibration or adjustment of instruments and accessories is only allowed
to be carried out by a competent authorized person!
Do not use the instrument in AC supply systems with voltages higher than 550
Va.c.
Consider that protection category of some accessories is lower than of the
instrument. Test tips and Tip commander have removable caps. If they are
removed the protection falls to CAT II. Check markings on accessories!
cap off, 18 mm tip: CAT II up to 1000 V
cap on, 4 mm tip: CAT II 1000 V / CAT III 600 V / CAT IV 300 V

MI 3155 EurotestXD General description
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The instrument comes supplied with rechargeable Li-Ion battery pack. The battery
pack should only be replaced with the same type as defined on the battery
compartment label or as described in this manual!
Hazardous voltages exist inside the instrument. Disconnect all test leads, remove
the power supply cable and switch off the instrument before removing battery
/fuse compartment cover.
Do not connect any voltage source on C1 inputs. It is intended only for connection
of current clamps. Maximal input voltage is 3 V!
1.1.2 Markings on the instrument
Read the Instruction manual with special care to safety operation«. The
symbol requires an action!
Do not use the instrument in AC supply systems
with voltages higher than 550 Va.c.!
Mark on your equipment certifies that it meets requirements of all subjected
EU regulations.
This equipment should be recycled as electronic waste.
1.1.3 Warnings related to safety of batteries
Use only batteries and power supply adapter delivered from the manufacturer or
distributer of the test equipment.
Never dispose of the batteries in a fire as it may cause them to explode or generate
a toxic gas.
Do not attempt to disassemble, crush or puncture the batteries in any way.
Do not short circuit or reverse polarity the external contacts on a battery.
Avoid exposing the battery to excessive shock/impacts or vibration.
Do not use a damaged battery.
The Li –ion battery contains safety and protection circuit, which if damaged, may
cause the battery to generate heat, rupture or ignite.
Do not leave a battery on prolonged charge when not in use.
If a battery has leaking fluids, do not touch any fluids.
In case of eye contact with fluid, do not rub eyes. Immediately flush eyes
thoroughly with water for at least 15 minutes, lifting upper and lower lids, until no
evidence of the fluid remains. Seek medical attention.
1.1.4 Warnings related to safety of measurement functions
Insulation resistance (R iso, R iso –all)
Insulation resistance measurement should only be performed on de-energized objects!
Do not touch the test object during the measurement or before it is fully discharged! Risk
of electric shock!
Continuity functions (R low, R low 4W, Continuity)
Continuity measurements should only be performed on de-energized objects!

MI 3155 EurotestXD General description
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1.1.5 Notes related to measurement functions
Insulation resistance (R iso, R iso –all)
The measuring range is decreased if using Tip commander A 1401.
If a voltage of higher than 30 V (AC or DC) is detected between test terminals, the
measurement will not be performed.
Diagnostic test
If any insulation resistance values (RISO(15 s) or RISO(60 s )) are over-ranged the DAR
factor is not calculated. The result field is blank: DAR:_____!
If any insulation resistance values (RISO(60 s) or RISO(10 min)) are over-ranged the PI
factor is not calculated. The result field is blank: PI :_____!
Continuity functions (R low, R low 4W, Continuity)
If a voltage of higher than 10 V (AC or DC) is detected between test terminals, the
measurement will not be performed.
Parallel loops may influence on test results.
Earth, Earth 2 clamp, Ro
If voltage between test terminals is higher than 10 V (Earth, Earth 2 clamps) or 30 V (Ro)
the measurement will not be performed.
Contactless earthing resistance measurement (using two current clamps) enables simple
testing of individual earthing rods in large earthing system. It is especially suitable for use
in urban areas because there is usually no possibility to place the test probes.
For two clamps earth resistance measurement clamps A 1018 and A 1019 should be
used. Clamps A 1391 are not supported. The distance between clamps should be at
least 30 cm.
For specific earth resistance measurements Adaptor A 1199 should be used.
RCD t, RCD I, RCD Uc, RCD Auto
Parameters set in one function are also kept for other RCD functions!
Selective (time-delayed) RCDs have delayed response characteristics. As the contact
voltage pre-test or other RCD tests influence the time delayed RCD it takes a certain
period to recover into normal state. Therefore a time delay of 30 s is inserted before
performing trip-out test by default.
Portable RCDs (PRCD, PRCD-K and PRCD-S) are tested as general (non-delayed)
RCDs. Trip-out times, trip-out currents and contact voltage limits are equal to limits of
general (non-delayed) RCDs.
The a.c. part of MI and EV RCDs is tested as general (non-delayed) RCDs.
The d.c. part of MI and EV RCDs is tested with a d. c. test current The Pass limit is
between 0.5 and 1.0 IdNDC.
The Zs rcd function takes longer to complete but offers much better accuracy of fault loop
resistance (in comparison to the RLsub-result in Contact voltage function).
Auto test is finished without x5 tests in case of testing the RCD types A, F, B and B+ with
rated residual currents of IdN = 300 mA, 500 mA, and 1000 mA or testing the RCD type
AC with rated residual current of IdN = 1000 mA . In this case Auto test result passes if all
other results pass, and indications for x5 are omitted.
Auto test is finished without x1 tests in case of testing the RCD types B and B+ with rated
residual currents of IdN = 1000 mA. In this case Auto test result passes if all other results
pass, and indications for x1 are omitted.
Tests for sensitivity Idn(+) and Idn(-) are omitted for selective type RCD.
Trip out time measurement for B and B+ type RCDs in AUTO function is made with sine-
wave test current, while trip-out current measurement is made with DC test current.

MI 3155 EurotestXD General description
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Z loop, Zloop 4W, Zs rcd
The specified accuracy of tested parameters is valid only if the mains voltage is stable
during the measurement.
The measurement accuracy and immunity against noise are higher if I test parameter in
Zsrcd is set to ‘Standard’.
Fault loop impedance (Z loop) measurements will trip an RCD.
The Zs rcd measurement does not normally trip an RCD. However if a leakage current
from L to PE already flows or if a very sensitive RCD is installed (for example EV type)
the RCD could trip. In this case setting parameter I test to ‘Low’ can help.
Z line, Z line 4W, Voltage drop
In case of measurement of ZLine-Line with the instrument test leads PE and N connected
together the instrument will display a warning of dangerous PE voltage. The
measurement will be performed anyway.
Specified accuracy of tested parameters is valid only if mains voltage is stable during the
measurement.
If the reference impedance is not set the value of ZREF is considered as 0.00 Ω.
The lowest value of Zref, measured at different settings of the Test or Phase parameters
is used for Voltage drop (ΔU) measurement in Voltage drop single test, Zauto single test,
auto tests and Auto Sequences®.
Measuring Zref without test voltage present (disconnected test leads) will reset Zref value
to initial value.
Power, Harmonics, Currents
Consider polarity of current clamp (arrow on test clamp should be oriented toward
connected load), otherwise result will be negative!
Illumination
LUXmeter type B (A 1172) and LUXmeter type C (A 1173) probes are supported by the
instrument.
Artificial light sources reach full power of operation after a period of time (see technical
data for light sources) and should be therefore switched on for this period of time before
the measurements are taken.
For accurate measurement make sure that the milk glass bulb is lit without any shadows
cast by hand, body or other unwanted objects.
Refer to the Illuminance handbook for more information.
Rpe
The specified accuracy of tested parameters is valid only if the mains voltage is stable
during the measurement.
Measurement will trip an RCD if the parameter RCD is set to ‘No’.
The measurement does not normally trip an RCD if the parameter RCD is set to ‘Yes’.
However, the RCD can trip if a leakage current from L to PE already flows.
IMD
It is recommended to disconnect all appliances from the tested supply to receive regular
test results. Any connected appliance will influence the insulation resistance threshold
test.
Z line mΩ, Z loop mΩ
A 1143 Euro Z 290 A adapter is required for this measurements.

MI 3155 EurotestXD General description
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AutoTT, Auto TN(RCD), Auto TN, Auto IT, Zauto
Voltage drop (dU) measurement in each Auto test (except Z auto) is enabled only if ZREF
is set.
See notes related to Zline, Zloop, Zs rcd, Voltage drop, Rpe, IMD and ISFL single tests.
Auto Sequences®
Metrel Auto Sequences®are designed as guidance to tests in order to significantly
reduce testing time, improve work scope and increase traceability of the tests performed.
METREL assumes no responsibility for any Auto Sequence® by any means. It is the
user’s responsibility, to check adequacy for the purpose of use of the selected Auto
Sequence®. This includes type and number of tests, sequence flow, test parameters and
limits.
Auto Sequences® mode allows building custom-defined test sequences.
See notes related to single tests in the selected Auto Sequence®.
Compensate test leads resistance before entering Auto Sequences®.
Zref value for Voltage drop test (ΔU) implemented in any Auto Sequence® should be set
in single test function.

MI 3155 EurotestXD General description
13
1.2 Testing potential on PE terminal
In certain instances faults on the installation's PE wire or any other accessible metal bonding
parts can become exposed to live voltage. This is a very dangerous situation since the parts
connected to the earthing system are considered to be free of potential. In order to properly
check the installation against this fault the key should be used as an indicator prior to
performing live tests.
Examples for application of PE test terminal
Figure 1.1: Reversed L and PE conductors (plug commander)
Figure 1.2: Reversed L and PE conductors (application of 3-wire test lead)
Warning!
Reversed phase and protection conductors! The most dangerous situation!
If dangerous voltage is detected on the tested PE terminal, stop all measurements
immediately and ensure the cause of the fault is eliminated before proceeding
with any activity!

MI 3155 EurotestXD General description
14
Test procedure
Connect test cable to the instrument.
Connect test leads to the object under test, see Figure 1.1 and Figure 1.2.
Touch test probe for at least 1 second.
If PE terminal is connected to phase voltage the warning message is displayed, display
is yellow coloured, instrument buzzer is activated and further measurements are
disabled: RCD tests, Z loop, Zs rcd, Z auto, AUTO TT, AUTO TN, AUTO TN (rcd) and
Auto Sequences®.
Notes:
PE test terminal is active in the Voltage, Rpe, RCD tests, Z loop, Zs rcd, Z auto, Z line,
ΔU, AUTO TT, AUTO TN, AUTO TN (rcd), AUTO IT tests and Auto Sequencesonly!
In case of detection of phase voltage on PE terminal in IT earthing system, the tests can
be enabled/disabled according to setting of parameter ‘Ignore PE probe warning (IT)’.
For correct testing of PE terminal, the key has to be touched for at least 1 second.
Make sure that the TEST key is grounded through human body resistance without any
insulated material between (gloves, shoes, insulated floors, pens, ...). PE test could
otherwise be impaired and results of a single test or Auto Sequence® can mislead. Even
detected dangerous voltage on PE test terminal cannot prevent running of a single test or
Auto Sequence®. All such behaviour is regarded as misuse. Operator of the instrument
must stop the activity immediately and eliminate the fault/connection problem before
proceeding with any activity!

MI 3155 EurotestXD General description
15
1.3 Battery and charging of Li-ion battery pack
The instrument is designed to be powered by rechargeable Li-ion battery pack. The LCD
contains an indication of battery condition (upper right section of LCD). In case the battery is too
weak the instrument indicates this as shown in Figure 1.3.
Symbol:
Indication of low battery.
Figure 1.3: Battery test
The battery is charged whenever the power supply is connected to the instrument. The charger
socket polarity is shown in Figure 1.4. Internal circuit controls (CC, CV) charging and assures
maximum battery lifetime. Nominal operating time is declared for battery with nominal capacity of
4.4 Ah.
Figure 1.4: Charger socket polarity
The instrument automatically recognizes the connected power supply and begins charging.
Symbol:
Indication of battery charging
Figure 1.5: Charging indication
(animation)
Battery and charging characteristic
Typical
Battery types
18650T22A2S2P
18650T22A2S4P (optional)
Charging mode
CC / CV
Nominal voltage
7,2 V
Rated capacity
4400 mAh (type: 18650T22A2S2P)
8800 mAh (type: 18650T22A2S4P)
Max charging voltage
8,0 V
Max charging current
2,2 A (type: 18650T22A2S2P)
3,0 A (type: 18650T22A2S4P)
Max discharge current
2,5 A
Typical charging time
3 hours (type: 18650T22A2S2P)
4,5 hours (type: 18650T22A2S4P)

MI 3155 EurotestXD General description
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Typical charging profile which is also used in this instrument is shown in Figure 1.6.
ICH/8
Fastcharge Safety Time
Precharge
Time
Current Regulation Voltage Regulation
ICH
VREG
VLOWV
Charge
Current
Charge
Voltage
Figure 1.6: Typical charging profile
where:
VREG ...................................Battery charging voltage
VLOWV..................................Precharge threshold voltage
ICH ......................................Battery charging current
ICH/8 ....................................1/8 of the charging current
1.3.1 Precharge
On power up, if the battery voltage is below the VLOWV threshold, the charger applies 1/8 of the
charging current to the battery. The precharge feature is intended to revive deeply discharged
battery. If the VLOWV threshold is not reached within 30 minutes of initiating precharge, the
charger turns off and a FAULT is indicated.
Figure 1.7: Battery fault indication
(charging suspended, timer fault, battery
absent)
Figure 1.8: Battery full indication
(charging completed)
Note:
As a safety backup, the charger also provides an internal 5-hour charge timer for fast
charge.

MI 3155 EurotestXD General description
17
Typical charging time is 3 hours (Battery type: 18650T22A2S2P) in the temperature range of
5°C to 60°C.
Ich/8
Ich
TLTF TCOOL TWARM THTF
Charge
Suspended
Charge
Suspended
Temperature
Current
Charge
Figure 1.9: Typical charging current vs temperature profile
where:
TLTF ...........Cold temperature threshold (typ. -15°C)
TCOOL .........Cool temperature threshold (typ. 0°C)
TWARM ........Warm temperature threshold (typ. +60°C)
THTF...........Hot temperature threshold (typ. +75°C)
The charger continuously monitors battery temperature. To initiate a charge cycle, the battery
temperature must be within the TLTF to THTF thresholds. If battery temperature is outside of this
range, the controller suspends charge and waits until the battery temperature is within the TLTF to
THTF range.
If the battery temperature is between the TLTF and TCOOL thresholds or between the TWARM and
THTW thresholds, charge is automatically reduced to ICH/8 (1/8 of the charging current).

MI 3155 EurotestXD General description
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1.3.2 Li –ion battery pack guidelines
Li –ion rechargeable battery pack requires routine maintenance and care in their use and
handling. Read and follow the guidelines in this Instruction manual to safely use Li –ion battery
pack and achieve the maximum battery life cycles.
Do not leave batteries unused for extended periods of time –more than 6 months (self –
discharge).
When a battery has been unused for 6 months, check the charge status see chapter 4.4.2
Battery indication. Rechargeable Li –ion battery pack has a limited life and will gradually lose
their capacity to hold a charge. As the battery loses capacity, the length of time it will power the
product decreases.
Storage
Charge or discharge the instruments battery pack to approximately 50 % of capacity
before storage.
Charge the instrument battery pack to approximately 50 % of capacity at least once
every 6 months.
Transportation
Always check all applicable local, national, and international regulations before
transporting a Li –ion battery pack.
Handling Warnings
Do not disassemble, crush, or puncture a battery in any way.
Do not short circuit or reverse polarity the external contacts on a battery.
Do not dispose of a battery in fire or water.
Avoid exposing the battery to excessive shock/impacts or vibration.
Do not use a damaged battery.
The Li –ion battery contains safety and protection circuit, which if damaged, may
cause the battery to generate heat, rupture or ignite.
Do not leave a battery on prolonged charge when not in use.
If a battery has leaking fluids, do not touch any fluids.
In case of eye contact with fluid, do not rub eyes. Immediately flush eyes
thoroughly with water for at least 15 minutes, lifting upper and lower lids, until no
evidence of the fluid remains. Seek medical attention.

MI 3155 EurotestXD General description
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1.4 Standards applied
The EurotestXD instruments are manufactured and tested in accordance with the following
regulations:
Electromagnetic compatibility (EMC)
EN 61326-1
Electrical equipment for measurement, control and laboratory
use –EMC requirements
Class B (Hand-held equipment used in controlled EM environments)
Safety (LVD)
EN 61010-1
Safety requirements for electrical equipment for measurement, control and
laboratory use –Part 1: General requirements
EN 61010-2-030
Safety requirements for electrical equipment for measurement, control and
laboratory use –Part 2-030: Particular requirements for testing and
measuring circuits
EN 61010-031
Safety requirements for electrical equipment for measurement, control and
laboratory use –Part 031: Safety requirements for hand-held probe
assemblies for electrical measurement and test
EN 61010-2-032
Safety requirements for electrical equipment for measurement, control, and
laboratory use - Part 2-032: Particular requirements for hand-held and hand-
manipulated current sensors for electrical test and measurement
Functionality
EN 61557
Electrical safety in low voltage distribution systems up to 1000 VAC and 1500
VAC –Equipment for testing, measuring or monitoring of protective measures
Part 1: General requirements
Part 2: Insulation resistance
Part 3: Loop resistance
Part 4: Resistance of earth connection and equipotential bonding
Part 5: Resistance to earth
Part 6: Residual current devices (RCDs) in TT and TN systems
Part 7: Phase sequence
Part 10: Combined measuring equipment
Part 12: Performance measuring and monitoring devices (PMD)
Part 14: Equipment for testing the safety of electrical equipment for
machinery
DIN 5032
Photometry
Part 7: Classification of illuminance meters and luminance meters
Reference standards for electrical installations and components
EN 61008
Residual current operated circuit-breakers without integral overcurrent
protection for household and similar uses
EN 61009
Residual current operated circuit-breakers with integral overcurrent
protection for household and similar uses
IEC 60364-4-41
Electrical installations of buildings Part 4-41 Protection for safety –
protection against electric shock
BS 7671
IEE Wiring Regulations (17th edition)
AS/NZS 3017
Electrical installations –Verification guidelines