METREL EurotestXA MI 3105 Instruction Manual
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METREL EurotestXA MI 3105 Instruction Manual

Multifunctional hand-held installation tester
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EurotestXA
MI 3105

Instruction manual

Version 2.4, HW 3; Code no. 20 751 009

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Summary of Contents for METREL EurotestXA MI 3105

  • Page 1: Instruction Manual

    EurotestXA MI 3105 Instruction manual Version 2.4, HW 3; Code no. 20 751 009...
  • Page 2 Mark on your equipment certifies that this equipment meets the requirements of the EU (European Union) concerning safety and electromagnetic compatibility regulations © 2006, 2007, 2008 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 3105 EurotestXA Table of contents Preface ............................. 6 Safety and operational considerations ................. 7 Warnings and notes ......................7 Battery and charging ......................10 2.2.1 New battery cells or cells unused for a longer period..........11 Standards applied ......................12 Instrument description ......................13 Front panel ........................13 Connector panel .......................14 Back panel........................15...
  • Page 4 MI 3105 EurotestXA Table of contents 5.3.4 RCD Autotest ......................55 Fault loop impedance and prospective fault current............57 Line impedance and prospective short-circuit current............59 Voltage, frequency and phase sequence .................61 Resistance to earth ......................63 5.7.1 Standard 3-wire measurement ................63 5.7.2 One clamp measurement ..................
  • Page 5 MI 3105 EurotestXA Table of contents 2 Ω line/loop impedance....................102 8.11 8.11.1 High precision line impedance ................102 8.11.2 High precision fault loop impedance ..............102 8.11.3 Contact voltage ..................... 103 8.12 Varistor test ........................103 8.13 General data........................104 Appendix A - Fuse table ..................... 105 Appendix B - Accessories for specific measurements ...........

  • Page 6: Preface

    MI 3105 EurotestXA Preface 1 Preface Congratulations on your purchase of the instrument and its accessories from METREL. The instrument was designed on basis of rich experience, acquired through many years of dealing with electric installation test equipment. The multifunctional hand-held installation tester EurotestXA is intended for all tests and measurements required for total inspection of electrical installations in buildings.

  • Page 7: Safety And Operational Considerations

    MI 3105 EurotestXA Safety and operational considerations Warnings and notes 2 Safety and operational considerations 2.1 Warnings and notes In order to reach high level of operator’s safety while carrying out various tests and measurements using EurotestXA, as well as to keep the test equipment undamaged, it is necessary to consider the following general warnings: Warning on the instrument means »Read the Instruction manual with special care to safety operation«.
  • Page 8 MI 3105 EurotestXA Safety and operational considerations Warnings and notes Notes related to measurement functions: General Indicator means that the selected measurement can't be performed because of irregular conditions on input terminals. Insulation resistance, varistor test, continuity functions and earth resistance measurements shall be performed on de-energized objects, i.e.
  • Page 9 MI 3105 EurotestXA Safety and operational considerations Warnings and notes Z-LOOP Fault loop impedance measurement trips-out the RCD. Use the Z-LOOP Impedance, Protection: RCD option to prevent the trip-out. Fault loop impedance function with selected RCD protection takes longer time to complete but offers much better accuracy then R sub-result in RCD: Uc function.

  • Page 10: Battery And Charging

    MI 3105 EurotestXA Safety and operational considerations Battery and charging 2.2 Battery and charging The instrument uses six AA size alkaline or rechargeable Ni-Cd or Ni-MH battery cells. Nominal operating time is declared for cells with nominal capacity of 2100 mAh. Battery condition is always present on the display when the instrument is turned on.

  • Page 11: New Battery Cells Or Cells Unused For A Longer Period

    MI 3105 EurotestXA Safety and operational considerations Battery and charging Take into account handling, maintenance and recycling requirements that are defined by related regulatives and manufacturer of alkaline or rechargeable batteries! Use only power supply adapter delivered from manufacturer or distributor of the test equipment to avoid possible fire or electric shock! 2.2.1 New battery cells or cells unused for a longer period Unpredictable chemical processes can occur during charging of new battery cells or cells...

  • Page 12: Standards Applied

    MI 3105 EurotestXA Safety and operational considerations Standards applied 2.3 Standards applied The MI 3105 EurotestXA instrument is manufactured and tested according to the following regulations, listed below. Electromagnetic compatibility (EMC) Electrical equipment for measurement, control and laboratory use – EMC requirements EN 61326 Class B (Hand held equipment used in controlled EM environments)

  • Page 13: Instrument Description

    MI 3105 EurotestXA Instrument description Front panel 3 Instrument description 3.1 Front panel Figure 3.1: Front panel Legend: Switches the instrument power on or off. 1 ON / OFF The instrument automatically turns off 15 minutes after the last key was pressed. 2 HELP Accesses help menus.

  • Page 14: Connector Panel

    MI 3105 EurotestXA Instrument description Connector panel 3.2 Connector panel > 550V Figure 3.2: Connector panel Legend: 1 Test connector Measuring inputs / outputs, connection of measuring cables. 2 Charger socket Connection of power supply adapter. Communication with PC serial port and connection to optional 3 PS/2 connector measuring adapters.

  • Page 15: Back Panel

    MI 3105 EurotestXA Instrument description Back panel 3.3 Back panel Figure 3.3: Back panel Legend: Battery / fuse compartment cover Back panel information label Fixing screws for battery / fuse compartment cover Fuse Fuse Fuse S/N XXXXXXXX SIZE AA SIZE AA SIZE AA Figure 3.4: Battery and fuse compartment Legend:...

  • Page 16: Bottom

    Ljubljanska 77 SI - 1354 Horjul Phase rotation (EN 61557-7) Tel: +386 1 75 58 200 Nominal voltage: 100V 440V / 1 http://www.metrel.si Results: 1.2.3 or 2.1.3 Figure 3.5: Bottom Legend: Bottom information label Neck belt openings Handling side covers...

  • Page 17: Display Organization

    MI 3105 EurotestXA Instrument description Display organization 3.5 Display organization Menu line Result field Test parameter field Message field Terminal voltage Figure 3.6: Typical single test monitor display Function tabs 3.5.1 Terminal voltage monitor The terminal voltage monitor displays current voltages present on the test terminals. In its lower part, messages are displayed regarding the measured voltages and selected voltage system (see 4.4.2 Supply systems).

  • Page 18: Menu Line

    MI 3105 EurotestXA Instrument description Display organization Warning! Phase voltage on the PE terminal! Stop the activity immediately and eliminate the fault / connection problem before proceeding with any activity! 3.5.2 Menu line In the menu line, the name of the selected function is displayed. Additional information about active cursor / TEST keys and battery condition are shown.

  • Page 19: Result Field

    MI 3105 EurotestXA Instrument description Display organization Low clamp current could influence earth resistance result. Pause activated in auto sequence test. Follow required activity for paused test function. 3.5.4 Result field Measurement result is inside pre-set limits (PASS). Measurement result is out of pre-set limits (FAIL). Measurement is aborted.

  • Page 20: Backlight And Contrast Adjustments

    MI 3105 EurotestXA Instrument description Display organization Figure 3.7: Examples of help screen 3.5.8 Backlight and contrast adjustments With the BACKLIGHT key backlight and contrast can be adjusted. Toggle backlight intensity level. Click Lock high intensity backlight level until power is turned off or the Keep pressed for 1 s key is pressed again.

  • Page 21: Carrying The Instrument

    MI 3105 EurotestXA Instrument description Carrying the instrument 3.6 Carrying the instrument With the neck-carrying belt supplied in standard set, various possibilities of carrying the instrument are available. Operator can choose appropriate one on basis of his operation, see the following examples: The instrument hangs around operators neck only - quick placing and...

  • Page 22: Instrument Operation

    MI 3105 EurotestXA Instrument operation Main menu & Single test 4 Instrument operation 4.1 Main menu From the Main menu different instrument operation modes can be set. Single test menu (see 4.2), Auto sequence menu (see 4.3), Miscellaneous (see 4.4). Figure 4.1: Main menu Keys: Select the mode.
  • Page 23 MI 3105 EurotestXA Instrument operation Single test Keys in main single test screen: Select test / measurement function: <VOLTAGE> Voltage and frequency plus phase sequence. <CONTINUITY> Resistance to earth connection and equipotential bonding. <INSULATION> Insulation resistance. <Z-LINE> Line impedance. <Z-LOOP> Fault loop impedance. <RCD>...

  • Page 24: Automatic Testing

    MI 3105 EurotestXA Instrument operation Automatic testing 4.3 Automatic testing is intended for automatic executing of predefined measurement sequences. Auto sequence menu. Selected sequence number and (optional) name. Sequence field. Test parameter / auto sequence description field. Figure 4.3: Typical auto Saving and renaming options.
  • Page 25 MI 3105 EurotestXA Instrument operation Automatic testing Measurements are marked with one of the following symbol after finished test. Measurement is finished and has failed. Measurement is finished and has passed. Measurement is finished. No comparison limit was applied. Measurement is not performed yet (during test) or was skipped. Overall PASS result is reported if all performed tests passed.

  • Page 26: Auto Sequence Number Main Menu

    MI 3105 EurotestXA Instrument operation Automatic testing 4.3.1 Auto sequence number main menu In the instrument up to 99 auto sequences can be stored. Auto sequence number. Indicator that the preset sequence was changed and is not stored yet, the auto sequence can be performed anyway.

  • Page 27: Test Parameters In Auto Sequence

    MI 3105 EurotestXA Instrument operation Automatic testing The key is indication of locked sequence. This indication appears at predefined sequences that were loaded into the instrument from PC. It is possible to modify locked auto sequences and run them. However, the modified sequence cannot be stored by overwriting.
  • Page 28 MI 3105 EurotestXA Instrument operation Automatic testing Name and description for the selected auto sequence can be added or changed (optional) in this two level menu. Figure 4.9: Auto sequence name menu Keys for 1 level: Select between name and description field. Returns to auto sequence main menu.

  • Page 29: Storing Auto Sequence Settings (Sequence, Number, Name)

    MI 3105 EurotestXA Instrument operation Automatic testing 4.3.5 Storing auto sequence settings (sequence, number, name) Opens dialog for storing auto sequence settings in auto sequence main menu. The dialog enables storing existing auto sequence settings into different location or overwriting existing. Figure 4.12: Store dialog Keys: Select the auto sequence number.

  • Page 30: Pause Flag And Comments In Auto Sequence

    MI 3105 EurotestXA Instrument operation Automatic testing 4.3.6 Pause flag and comments in auto sequence The auto sequence holds if a pause flag is associated with the measurement and the pre- defined comment is displayed. When the input conditions are regular, the auto sequence can be continued by pressing the TEST key.
  • Page 31 MI 3105 EurotestXA Instrument operation Automatic testing Keys: Enable (ON) / disable (OFF) pause flag. Select between pause flag and comments fields. Confirms pause and comment selection, and returns to auto TEST sequence main menu. Returns to auto sequence main menu without changes. Comments set-up menu enables selection and editing of the pause comment.

  • Page 32: Building An Auto Sequence

    MI 3105 EurotestXA Instrument operation Automatic testing Storing comment opens dialog for storing into selected location. Figure 4.19: Store dialog for comment Keys: Select comment number. Confirms storing the comment and returns. TEST Returns to Edit comments menu. Note: It is not possible to overwrite comments associated to locked auto sequences. 4.3.8 Building an auto sequence The instrument supports up to 99 auto sequences, each consisting of up to 6 steps.
  • Page 33 MI 3105 EurotestXA Instrument operation Automatic testing Figure 4.20: Blank auto sequence Example of building an auto sequence A house installation wall socket protected with fuse (type gG, In = 6 A, td = 5 s) and RCD (type AC, I = 30 mA) shall be tested.
  • Page 34 MI 3105 EurotestXA Instrument operation Automatic testing Accept description and exit into sequence name editing menu. 4.3.4 Exit sequence name editing menu. TEST Enter into sequence field. 4.3.2 Select CONTINUITY. 4.3.2 Enter test parameter selection mode. TEST R200mA Set test parameters for equipotential bonding Limit resistance.
  • Page 35 MI 3105 EurotestXA Instrument operation Automatic testing 4.3.2 Select VOLTAGE. 4.3.2 Set PAUSE (wait to connect mains voltage). 4.3.7 Set PAUSE: ON. 4.3.7 Select COMMENT. (3 x) 4.3.7 Select COMMENT: #3. 4.3.7 Confirm selected pause and its comment. TEST Next step. 4.3.2 Select Z-LINE.

  • Page 36: Miscellaneous

    MI 3105 EurotestXA Instrument operation Miscellaneous 4.4 Miscellaneous Different instrument options can be set in the menu. Options are: Selection of language, Selection of mains supply system, Recalling and clearing stored results, Setting date and time, Selection of communication port, Setting the instrument to initial values, Entering locator function, Selection of operator.

  • Page 37: Supply System, Isc Factor, Rcd Standard

    MI 3105 EurotestXA Instrument operation Miscellaneous 4.4.2 Supply system, Isc factor, RCD standard In the Voltage system menu the following parameters can be selected: Voltage system Mains supply system type. Correction factor for Isc Set Isc factor calculation (ksc). RCD normative reference. RDC testing Figure 4.24: System parameters Keys:...
  • Page 38 MI 3105 EurotestXA Instrument operation Miscellaneous RCD normative references Maximum RCD disconnection times differ in various standards. The trip-out times defined in individual standards are listed below. Trip-out times according to EN 61008 / EN 61009: 2×I 5×I ½×I ΔN ΔN ΔN ΔN...

  • Page 39: Memory

    MI 3105 EurotestXA Instrument operation Miscellaneous 4.4.3 Memory In this menu, the stored data can be recalled, viewed and cleared. See chapter 6 Data handling for more information. Figure 4.25: Memory options Keys: Select option. Exits this option. Enters selected option. TEST 4.4.4 Date and time Date and time can be set in this menu.

  • Page 40: Initial Settings

    MI 3105 EurotestXA Instrument operation Miscellaneous 4.4.5 Initial settings Instrument settings and measurement parameters and limits are set to their initial values in this menu. Figure 4.27: Initial settings dialogue Keys: Restores default settings. TEST Exits the menu without changes. Opens other settings menu.
  • Page 41 MI 3105 EurotestXA Instrument operation Miscellaneous Earth resistance 3-wire 3-wire Limit value: OFF One clamp Limit value: OFF Two clamps Limit value: OFF Specific resistance Distance unit: m Current Limit value: OFF Sensors - illumination Limit value: OFF Adapters – 2 Ω line/loop mΩ...

  • Page 42: Communication Port

    MI 3105 EurotestXA Instrument operation Miscellaneous Units selection Unit for specific earth resistance will be selected. Figure 4.30: Other settings dialogue Select distance units. Enters selected distance units. TEST Exits the menu without changes. 4.4.6 Communication port The communication port (RS232 or USB) can be selected in this menu.

  • Page 43: Operator

    MI 3105 EurotestXA Instrument operation Miscellaneous 4.4.8 Operator This menu enables registering the operator of the instrument. Selected operator name appears on the bottom of the LCD during turning on of the instrument. It is also associated to stored measurement results. Up to 5 operators can be defined.

  • Page 44: Measurements

    MI 3105 EurotestXA Measurements Insulation resistance 5 Measurements 5.1 Insulation resistance Insulation resistance measurement is performed in order to assure safety against electric shock through insulation. It is covered by the EN 61557-2 standard. Typical applications are: Insulation resistance between conductors of installation, Insulation resistance of non-conductive rooms (walls and floors), Insulation resistance of ground cables, Resistance of semi-conductive (antistatic) floors.
  • Page 45 MI 3105 EurotestXA Measurements Insulation resistance mains voltage switched off loads disconnected Figure 5.3: Application of plug commander and / or universal test cable for insulation resistance measurement (TESTS: ‘L-PE,N-PE’, ‘L-N,L-PE’, ALL) Insulation resistance measuring procedure Select the function. INSULATION Set test parameters.

  • Page 46: Resistance To Earth Connection And Equipotential Bonding

    MI 3105 EurotestXA Measurements Continuity 5.2 Resistance to earth connection and equipotential bonding The resistance measurement is performed in order to assure that protective measures against electric shock through earth bond connections are effective. Four subfunctions are available: Earth bond resistance measurement according to EN 61557-4 (between N and PE terminals, test current >200 mA), Earth bond resistance measurement according to EN 61557-4 (between L and PE terminals, test current >200 mA),...
  • Page 47 MI 3105 EurotestXA Measurements Continuity Test circuit for Continuity R200mA measurement MPEC..Main Potential Equilizing Collector PCC..Protection Conductor Collector PCC3 N/L2 PCC1 PCC2 MPEC PE/L3 extension lead L/L1 Figure 5.6: Connection of universal test cable plus optional extension lead Resistance to earth connection and equipotential bonding measurement procedure Select the function.

  • Page 48: Ma Resistance Measurement

    MI 3105 EurotestXA Measurements Continuity 5.2.2 7 mA resistance measurement In general this function serves as standard Ω-meter with low test current. The measurement is performed continuously without pole reversal. The function can also be applied for testing continuity of inductive components. Test circuit for continuous resistance measurement Figure 5.8: Universal test cable application Continuous resistance measurement procedure...

  • Page 49: Compensation Of Test Leads Resistance

    MI 3105 EurotestXA Measurements Continuity 5.2.3 Compensation of test leads resistance This chapter describes common principle for compensation of test leads resistance for both CONTINUITY functions. The compensation is required to eliminate the influence of test leads resistance plus internal resistances of the instrument. The lead compensation is very important to obtain correct result.
  • Page 50 MI 3105 EurotestXA Measurements Continuity Circuits for compensating the resistance of test leads extension lead Figure 5.11: Shorted test leads-examples for N-PE Compensation of test leads resistance procedure Select the function (any). CONTINUITY Connect test cable to the instrument and short N/PE or L/PE terminals (see figure 5.11).

  • Page 51: Testing Rcds

    MI 3105 EurotestXA Measurements RCD 5.3 Testing RCDs Various test and measurements are required for verification of RCD(s) in RCD protected installations. Measurements are based on the EN 61557-6 standard. The following measurements and tests (sub-functions) can be performed: Contact voltage, Trip-out time, Trip-out current, RCD autotest.

  • Page 52: Contact Voltage (Rcd Uc)

    MI 3105 EurotestXA Measurements RCD Circuits for testing RCD Figure 5.13: Connecting the plug commander and the universal test cable 5.3.1 Contact voltage (RCD Uc) A current flowing into the PE terminal causes a voltage drop on earth resistance, i.e. voltage difference between PE equipotential bonding circuit and earth.

  • Page 53: Trip-Out Time T

    MI 3105 EurotestXA Measurements RCD Loop resistance result is indicative and calculated from Uc result (without additional proportional factors) according to: Δ Figure 5.14: Example of contact voltage measurement results Displayed results: Uc..Contact voltage. Rl..Fault loop resistance. 5.3.2 Trip-out time t Trip-out time measurement verifies the sensitivity of an RCD at different residual currents.

  • Page 54: Trip-Out Current

    MI 3105 EurotestXA Measurements RCD Note: See 4.4.2 RCD normative reference for selection of appropriate standard test conditions. 5.3.3 Trip-out current A continuously rising residual current is intended for testing the threshold sensitivity for RCD trip-out. The instrument increases the test current in small steps through appropriate range as follows: Slope range RCD type...

  • Page 55: Rcd Autotest

    MI 3105 EurotestXA Measurements RCD 5.3.4 RCD Autotest RCD autotest function is intended to perform complete RCD testing and measurement of belonging parameters (contact voltage, fault loop resistance and trip-out time at different residual currents) in one set of automatic tests, guided by the instrument. If any false parameter is noticed during the RCD autotest, then individual parameter test has to be used for further investigation.
  • Page 56 MI 3105 EurotestXA Measurements RCD Step 3 Step 4 Step 5 Step 6 Figure 5.17: Individual steps in RCD autotest Displayed results: ..Step 1 trip-out time (½ × I Δ N, 0º), ..Step 2 trip-out time (½ × I Δ N, 180º), ...

  • Page 57: Fault Loop Impedance And Prospective Fault Current

    MI 3105 EurotestXA Measurements Fault loop impedance 5.4 Fault loop impedance and prospective fault current Fault loop is a loop comprising mains source, line wiring and PE return path to the mains source. The instrument has ability to measure impedance of mentioned loop and calculate short circuit current and contact voltage regarding the selected circuit breaker type.
  • Page 58 MI 3105 EurotestXA Measurements Fault loop impedance Fault loop impedance measurement procedure Select the function. Z-LOOP Select test parameters (optional). Connect test cable to the EurotestXA. Connect test leads to the tested object (see figure 5.18). Press the TEST key. After the measurement is finished store the result (optional).

  • Page 59: Line Impedance And Prospective Short-Circuit Current

    MI 3105 EurotestXA Measurements Line impedance 5.5 Line impedance and prospective short-circuit current Line impedance is measured in loop comprising of mains voltage source and line wiring (L and N). It is covered by requirements of the EN 61557-3 standard. See 4.2 Single test for keys functionality.
  • Page 60 MI 3105 EurotestXA Measurements Line impedance Line to neutral Line to line Figure 5.23: Examples of line impedance measurement result Displayed results: Z ....Line impedance, ....Prospective short-circuit current, R....Resistive part of line impedance, XL....Reactive part of line impedance. Prospective short circuit current is calculated as follows: ×...

  • Page 61: Voltage, Frequency And Phase Sequence

    MI 3105 EurotestXA Measurements Voltage, frequency, phase sequence 5.6 Voltage, frequency and phase sequence Voltage and frequency measurement is always active in the terminal voltage monitor. In the special voltage menu the measured voltage, frequency and information about detected three-phase connection can be stored. Phase sequence measurement conforms to the EN 61557-7 standard.
  • Page 62 MI 3105 EurotestXA Measurements Voltage, frequency, phase sequence Voltage measurement procedure Select the function. VOLTAGE Connect test cable to the instrument. Connect test leads to the tested object (see figures 5.25 and 5.26). Store current measurement result (optional). Measurement runs immediately after selection of function.

  • Page 63: Resistance To Earth

    MI 3105 EurotestXA Measurements Resistance to earth 5.7 Resistance to earth Resistance to earth is important for protection against electric shock. This function is intended for verification of earthing of house installation and other earthings, e.g., earthing for lighting. The measurement conforms to the EN 61557-6 standard. The following resistance to earth sub-functions are available: Standard 3-wire, for standard resistance to earth measurements.
  • Page 64 MI 3105 EurotestXA Measurements Resistance to earth MPEC >5d Figure 5.30: Resistance to earth, 3-wire measurement of lighting protection Resistance to earth, 3-wire measurement procedure Select the function. EARTH Select 3-wire measurement. Enable and set limit (optional). Connect test cable to the instrument. Connect test leads to the tested object (see figures 5.29 and 5.30).

  • Page 65: One Clamp Measurement

    MI 3105 EurotestXA Measurements Resistance to earth 5.7.2 One clamp measurement The measurement supports testing of particular earthing branches in earthing system. Circuit for one clamp measurement MPEC >5d Figure 5.32: Resistance to earth, measurement with a current clamp Resistance to earth, one clamp measurement procedure Select the function.

  • Page 66: Two Clamps Measurement

    MI 3105 EurotestXA Measurements Resistance to earth 5.7.3 Two clamps measurement The measurement is intended for testing of particular earthing branches in earthing system, especially in urban areas. It is also required by IEC 60364-6:2006. Circuit for two clamps measurement MPEC Figure 5.34: Resistance to earth, two clamps measurement of lighting protection Resistance to earth, two clamps measurement procedure...

  • Page 67: Specific Earth Resistance Measurement

    MI 3105 EurotestXA Measurements Resistance to earth 5.7.4 Specific earth resistance measurement The measurement is intended for measuring specific earth resistance by using special adapter A1199. Circuit for specific earth resistance measurement black ρ Figure 5.36: Specific earth resistance measurement with -adapter Specific earth resistance measurement procedure Select the...

  • Page 68: Current

    MI 3105 EurotestXA Measurements Current Note: Distance units can be selected in Miscellaneous/Initial settings/Other settings menu, see 4.4.5. 5.8 Current This function is intended for measurement of the electric current with current clamp. It is intended for measurement of leakage current and load current. See chapter 4.2 Single test for functionality of keys.
  • Page 69 1000:1, appropriate measurement range; consider error of test clamp when evaluating measured results)! Current clamps Metrel A 1074 and A 1019 are suitable for use with the instrument in range of 0.2 A ÷ 20 A. Below 0.2 A they can be used as indicator only. They are not suitable for leakage current measurements.

  • Page 70: Sensors And Adapters

    Measurements Sensors - Illumination 5.9 Sensors and adapters This function extends application range of the instrument by using external Metrel sensors and adapters. The probe is connected to the instrument via RS 232 interface. The instrument automatically recognizes connected probe.
  • Page 71 MI 3105 EurotestXA Measurements Sensors - Illumination Figure 5.43: LUX meter probe positioning Illumination measuring procedure Connect LUX probe to the instrument (see figure 5.42). Select the function. SENSORS Enable and set limit value (optional). Power ON the LUX probe (ON/OFF key, green LED lits). Press the TEST key for measurement.

  • Page 72: Ω Line/Loop Impedance

    Ω MI 3101 EurotestAT Measurements Adapters – 2 impedance 5.9.2 2 Ω line/loop impedance The measurement is performed with Impedance adapter A1143. It is automatically recognized in Z-LINE and Z-LOOP functions. With this adapter, low impedances up to 1999 m Ω can be measured. The measurement is covered by requirements of the EN 61557-3 standard.
  • Page 73 Ω MI 3101 EurotestAT Measurements Adapters – 2 impedance 2 Ω line/loop impedance measuring procedure Connect Impedance adapter to the instrument (see figure 5.46). Select the functions or Z-LOOP. Z-LINE Enable and set limit value (optional). Power ON the Impedance adapter (ON/OFF key, green LED lits). Connect Impedance adapter to tested installation.

  • Page 74: Pe Test Terminal

    MI 3101 EurotestAT Measurements PE test terminal Notes: For application and technical data of the Impedance adapter A1143 see its user manual 20750859. High fluctuations of mains voltage can influence the measurement results. Check adapter indications in case the abort symbol appears after the start of measurement.
  • Page 75 MI 3101 EurotestAT Measurements PE test terminal PE terminal test procedure Connect test cable to the instrument. Connect test leads to the tested object (see figures 5.48 and 5.49). Touch PE test probe (the TEST key) for at least one second. If PE terminal is connected to phase voltage the warning message is displayed, instrument buzzer is activated, and further measurements are disabled in Z-LOOP and RCD functions.

  • Page 76: Locator

    MI 3101 EurotestAT Measurements Locator 5.11 Locator This function is intended for tracing mains installation, like: Tracing lines, Finding shorts, breaks in lines, Detecting fuses. The instrument generates test signals that can be traced with the handheld tracer receiver R10K. See Locator appendix for additional information.
  • Page 77 MI 3101 EurotestAT Measurements Locator Line tracing procedure Select the function in MISC menu. LOCATOR Connect test cable to the instrument. Connect test leads to the tested object (see figures 5.51 and 5.52). Press the TEST key. Trace lines with receiver (in IND mode) or receiver plus its optional accessory. After tracing is finished press the ESC key to stop generating test signal.

  • Page 78: Varistor Test

    MI 3105 EurotestXA Measurements Varistor test 5.12 Varistor test This test is performed to verify overvoltage protection devices. Typical devices are: Metal oxide varistors, Gas arresters, Semiconductor transient voltage suppressors. See chapter 4.2 Single test for functionality of keys. Figure 5.54: Varistor test menu Test parameters for varistor test Lo limit Low limit DC threshold voltage [50 V ÷...
  • Page 79 MI 3105 EurotestXA Measurements Varistor test Varistor test procedure Select the function. VARISTOR TEST Set test parameters. Disconnect mains supply and consumers from tested overvoltage device. Connect test cable to the instrument and tested item (see figure 5.55). Press the TEST key for measurement. After the measurement is finished wait until tested item is discharged.

  • Page 80: Data Handling

    MI 3105 EurotestXA Data handling 6 Data handling 6.1 Memory organization The following data can be stored in instrument memory: Auto sequence name, sequence, and function parameters, Auto sequence and single test results with belonging parameters, Installation structure with belonging data. Stored data can be organized according to the installation structure of the tested object.
  • Page 81 Figure 6.2: Installation structure example as presented on PC Legend: Memory operation menu Installation data structure field Root level in the structure: METREL d.d.: 1 level location name. 1/1: No. of selected / available locations on this level. Sub-level (level 2) in the structure: PRODUCT.: sub-location name.
  • Page 82 MI 3105 EurotestXA Data handling Select the existing location. Pressed for 2 s opens dialog box for adding a new location. Renames the current location. Enters installation structure tree screen. Back to the last operation mode of the instrument. Note: The tree structure is limited to 2000 locations with 10 levels in depth, see figure 6.3.

  • Page 83: Storing Test Results

    MI 3105 EurotestXA Data handling Figure 6.4: Data structure elements 6.3 Storing test results After the completion of a single test or auto sequence the results and parameters are ready for storing ( icon is displayed in the information field). Press the MEM key to store the results.

  • Page 84: Saving Results Specialties

    MI 3105 EurotestXA Data handling Keys in save test menu - installation data structure field: Short press - select the location in structure of installation data field. Pressed for a few seconds in some cases - add a new location in the structure, see 6.6.1.

  • Page 85: Recalling Test Results And Parameters

    MI 3105 EurotestXA Data handling 6.4 Recalling test results and parameters Press the MEM key in single or auto sequence menu when there is no result available for storing or select in MISC menu. See chapter 6.2 for definitions of displayed fields. Figure 6.7: Main recall menu Keys in main recall memory menu: Short press - select the location in structure of installation data field.

  • Page 86: Clearing Saved Data

    MI 3105 EurotestXA Data handling Key: Back to recall memory main menu. Figure 6.9: Stored single test example Keys: Select stored data. Opens function result. TEST Back to recall memory main menu. Key in open function result: Back to observed auto sequence. Figure 6.10: Auto sequence stored example 6.5 Clearing saved data...

  • Page 87: Clearing Specialties

    MI 3105 EurotestXA Data handling option to delete particular result select or modify installation data structure. Figure 6.12: Clear test menu Keys: Select location. Opens dialog for clearing in installation data structure. TEST Moves focus into result field for selection of surplus result, see 6.5.1. Enters installation structure tree view to select appropriate location.

  • Page 88: Editing Installation Data Structure

    MI 3105 EurotestXA Data handling Legend for clearing in installation data structure: Results in current location. Results in sub-locations. Remove current location and its sub-locations. Figure 6.14: Clear in installation data structure menu Keys: Select option. Confirms option. TEST Cancels dialog without changes. 6.6 Editing installation data structure Installation data structure when once stored in the instrument can also be modified during use of the instrument.
  • Page 89 MI 3105 EurotestXA Data handling Keys in open dialog box: Select YES / NO. Confirms selected option. TEST Cancels dialog box without changes. An example for opening a new location and storing a test result into the location is presented below. Finished test with the results prepared for saving is marked with icon.
  • Page 90 MI 3105 EurotestXA Data handling Enter name of the location. Key: Confirms the name. Figure 6.18: Entering name for the new location Key: Saves results into the location. Figure 6.19: Location prepared Figure 6.20: Stored example...

  • Page 91: Communication

    MI 3105 EurotestXA Data handling 6.7 Communication Stored results can be transferred to a PC. A special communication program on the PC automatically identifies the instrument and enables data transfer between the instrument and the PC. There are two communication interfaces available on the instrument: USB or RS 232 (for selection see 4.4.6).

  • Page 92: Maintenance

    MI 3105 EurotestXA Maintenance 7 Maintenance Unauthorized person is not allowed to open the EurotestXA instrument. There are no user replaceable components inside the instrument, except three fuses and batteries under rear cover. 7.1 Replacing fuses There are three fuses under back cover of the EurotestXA instrument. M 0.315 A / 250 V, 20 ×...

  • Page 93: Technical Specifications

    MI 3105 EurotestXA Technical specifications 8 Technical specifications 8.1 Insulation resistance Insulation LN, LPE, NPE Insulation resistance (nominal voltages 50 V , 100 V and 250 V Measuring range according to EN61557 is 0.25 M Ω ÷ 199.9 M Ω . Measuring range (M Ω...

  • Page 94: Continuity

    MI 3105 EurotestXA Technical specifications 8.2 Continuity 8.2.1 Resistance R200mA (L-PE, N-PE) Measuring range according to EN61557 is 0.16 Ω ÷ 1999 Ω . Measuring range R ( Ω ) Resolution ( Ω ) Accuracy 0.00 ÷ 19.99 0.01 ± (3 % of reading + 3 digits) 20.0 ÷...

  • Page 95: Contact Voltage Rcd-Uc

    MI 3105 EurotestXA Technical specifications RCD test current selection (r.m.s. value calculated to 20ms) according to IEC 61009: IΔN × 1/2 IΔN × 1 IΔN × 2 IΔN × 5 RCD IΔ AC A B IΔN (mA) 100 100 10.5 15 120 150 212 300 400 500...

  • Page 96: Trip-Out Current

    MI 3105 EurotestXA Technical specifications 8.3.4 Trip-out current Trip-out current Complete measurement range corresponds to EN 61557 requirements. Accuracy Measuring range I Resolution I Δ Δ 0.2 × I ÷ 1.1 × I 0.05 × I ± 0.1 × I (AC type) ΔN ΔN...

  • Page 97: Rcd Selected

    MI 3105 EurotestXA Technical specifications 8.4.2 RCD selected Fault loop impedance Measuring range according to EN61557 is 0.46 Ω ÷ 19999 Ω . Measuring range ( Ω ) Resolution ( Ω ) Accuracy * 0.00 ÷ 9.99 0.01 ± (5 % of reading + 10 digits) 10.0 ÷...

  • Page 98: Voltage, Frequency, And Phase Rotation

    MI 3105 EurotestXA Technical specifications 8.6 Voltage, frequency, and phase rotation 8.6.1 Phase rotation ÷ 550 V Nominal system voltage range..100 V Nominal frequency range....14 Hz ÷ 500 Hz Result displayed ....... 1.2.3 or 3.2.1 8.6.2 Voltage Measuring range (V) Resolution (V) Accuracy 0 ÷...

  • Page 99: Earth Resistance

    MI 3105 EurotestXA Technical specifications 8.8 Earth resistance Earth resistance three-wire method Measuring range according to EN61557 is 0.67 Ω ÷ 9999 Ω Measuring range ( Ω ) Resolution ( Ω ) Accuracy 0.00 ÷ 19.99 0.01 ± (3 % of reading + 3 digits) 20.0 ÷...
  • Page 100 MI 3105 EurotestXA Technical specifications Earth resistance two clamps method Measuring range ( Ω ) Resolution ( Ω ) Accuracy* 0.00 ÷ 19.9 0.01 ± (10 % of reading + 10 digits) 20.0 ÷ 30.0 ± (20 % of reading ) 30.1 ÷...

  • Page 101: Trms Clamp Current

    MI 3105 EurotestXA Technical specifications 8.9 TRMS Clamp current Measuring range Resolution Accuracy 0.0 mA ÷ 99.9 mA 0.1 mA 100 mA ÷ 999 mA 1 mA ± (3 % of reading + 3 digits) 1.00 A ÷ 19.99 A 0.01 A Input resistance ........

  • Page 102: Ω Line/Loop Impedance

    MI 3105 EurotestXA Technical specifications 8.11 2 Ω line/loop impedance 8.11.1 High precision line impedance Measuring range according to EN61557 is 5.0 ÷ 1999 mΩ Accuracy Mesuring range (mΩ) Resolution (mΩ) 0.1 ÷ 199.9 ±(5 % + 1 mΩ) 200 ÷ 1999 Nominal voltage range ......100 V ÷...

  • Page 103: Contact Voltage

    MI 3105 EurotestXA Technical specifications Calculation of prospective short-circuit current (standard voltage value): = 230 V ± 10 % L-PE Calculation of prospective short-circuit current (non-standard voltage value): × × KMAX KMIN × = 230 V ± 10 % 230 V < U <...

  • Page 104: General Data

    MI 3105 EurotestXA Technical specifications 8.13 General data (6 × 1.5 V battery or accu, size AA) Power supply voltage......9 V Operation .......... typical 13 h Charger socket input voltage .... 12 V ± 10 % Charger socket input current..... 400 mA max. Battery charging current....

  • Page 105: A Appendix A - Fuse Table

    MI 3105 EurotestXA Appendix A Fuse table A Appendix A - Fuse table Note : This fuse table is incorporated in the instrument. Fuse type NV Rated Disconnection time [s] current Min. prospective short- circuit current (A) 32.5 22.3 18.7 15.9 65.6 46.4...
  • Page 106 MI 3105 EurotestXA Appendix A Fuse table Fuse type B Rated Disconnection time [s] current Min. prospective short- circuit current (A) Fuse type C Rated Disconnection time [s] current Min. prospective short- circuit current (A) 10.8 21.6 32.4 70.2 86.4 172.8 340.2 Fuse type K...
  • Page 107 MI 3105 EurotestXA Appendix A Fuse table Fuse type D Rated Disconnection time [s] current Min. prospective short- circuit current (A) 10.8 21.6 32.4 70.2 86.4 172.8...

  • Page 108: B Appendix B - Accessories For Specific Measurements

    MI 3105 EurotestXA Appendix B Accessories for specific measurement B Appendix B - Accessories for specific measurements The table below presents standard and optional accessories required for specific measurement. The accessories marked as optional may also be standard ones in some sets.

  • Page 109: C Appendix C - Locator Receiver R10K

    IND (inductive) mode. The CAP (capacitive) operating mode is intended for operating in combination with other Metrel measuring equipment. The built in field detector is placed in the front end of the receiver. External detectors can be connected via the rear connector.

  • Page 110: Tracing Principles

    MI 3105 EurotestXA Appendix C Locator receiver R10K C.1 Tracing principles C.1.1 Positioning the receiver The receiver has to be correctly positioned (see the figures below) to obtain the best results! Also wire position can be defined this way. co rrect po sition R e c eiv er R1 0K sw itched in...

  • Page 111: Positioning Selective Probe

    MI 3105 EurotestXA Appendix C Locator receiver R10K Lines: energized Mains supply Figure C.4: Transmitter as active load, clamp used instead of inductive sensor C.1.3 Positioning selective probe For searching a fuse in a group the selective probe shall be used. The wire or housing of the fuse must be touched at the right angle with it.

  • Page 112: D Appendix D - It Supply Systems

    D Appendix D - IT supply systems In order for operator to be familiar enough with measurements in and their typical applications in IT supply system it is advisable to read Metrel handbook Measurements on IT power supply systems .

  • Page 113: Measurement Guides

    MI 3105 EurotestXA Appendix D IT supply systems 133 V 230 V 230 V 133 V 133 V 230 V Optional (Optional) high impedance Figure D.1: General IT supply system Three phase star connection, optional delta connection. Optional neutral line. Single-phase connection is also possible.

  • Page 114: Mi 3105 Test Functions And It Systems

    MI 3105 EurotestXA Appendix D IT supply systems D.3.1 MI 3105 test functions and IT systems The table below contains functions of the instrument including compatibility notes related to the IT system. IT system functions Note Voltage Voltage Symbols modified for IT system, see figure D.2. Phase rotation For three phase system only, automatic detection.

  • Page 115: Rcd Testing

    MI 3105 EurotestXA Appendix D IT supply systems D.3.4 RCD testing RCD testing is performed in the same way as in TN/TT system (See chapter 5.3 ), with the following exception: measurement is not relevant. Test circuit with bypassing principle should correspond to that on figure D.3 . Figure D.3: RCD testing in IT system D.3.5 IMD testing...
  • Page 116 MI 3105 EurotestXA Appendix D IT supply systems Test circuit for IMD test Figure D.5: Connection with plug commander and universal test cable Keys in IMD test procedure: Change terminals to which resistance is applied (L1/PE or L2/PE). Change the selected line. Starts / stops test procedure.

  • Page 117: First Fault Leakage Current (Isfl)

    MI 3105 EurotestXA Appendix D IT supply systems Calculated first fault leakage current at threshold insulation resistance is given as: L − is line-line voltage. The calculated first fault current is the maximum L1-L2 current that would flow when insulation resistance decreases to the same value as the applied test resistance, and a first fault is assumed between opposite line and PE.
  • Page 118 MI 3105 EurotestXA Appendix D IT supply systems Figure D.8: Measurement of highest first fault leakage current with plug commander and universal test cable Figure D.9: Measurement of first fault leakage current for RCD protected circuit with universal test cable First fault leakage current measuring procedure Select the function.

  • Page 119: Technical Specifications

    MI 3105 EurotestXA Appendix D IT supply systems Figure D.10: Examples of measurement results for the first fault leakage current Displayed results: Isc1 ..First fault leakage current at single fault between L1/PE, Isc2 ..First fault leakage current at single fault between L2/PE. D.4 Technical specifications Only technical specifications that are different to the specifications from chapter 8 of this document are listed below.

  • Page 120: E Appendix E - Reduced Low Voltage Supply Systems

    MI 3105 EurotestXA Appendix E Reduced low voltage supply systems E Appendix E - Reduced low voltage supply systems E.1 Standard reference BS7671 E.2 Fundamentals Special supply systems are applied where inherent protection to electric shock is required but no SELV used. Reduced low voltage supply with ground reference can be used for this purpose.

  • Page 121: Mi 3105 Functions And Reduced Low Voltage Systems

    MI 3105 EurotestXA Appendix E Reduced low voltage supply systems E.3.1 MI 3105 functions and reduced low voltage systems The table below contains EurotestXA functions intended for test and measurement of supply systems with compatibility notes related to the reduced low voltage system. Reduced low voltage Note system functions...
  • Page 122 MI 3105 EurotestXA Appendix E Reduced low voltage supply systems E.3.1.2 RCD tests Maximum regular RCD test current is 1 A r.m.s. (1.4 A peak) and can be achieved only when fault loop impedance is lower than 1 Ω. Tests are carried out for both combination L1-PE and L2-PE automatically.

  • Page 123: Technical Specifications

    MI 3105 EurotestXA Appendix E Reduced low voltage supply systems E.4 Technical specifications Only those technical specifications are listed below that are different to specifications from chapter 8 of this document. E.4.1 RCD General Nominal differential currents ...... 10, 30, 100, 300, 500, 1000 mA Accuracy of actual differential currents: ..
  • Page 124 MI 3105 EurotestXA Appendix E Reduced low voltage supply systems Trip out time Complete measurement range corresponds to EN 61557 requirements. Maximum measuring times set according to selected reference for RCD testing. Measuring range (ms) Resolution (ms) Accuracy 0 ÷ 40 * ±...

  • Page 125: Fault Loop Impedance And Prospective Short-Circuit Current

    MI 3105 EurotestXA Appendix E Reduced low voltage supply systems E.4.2 Fault loop impedance and prospective short-circuit current Fuse or no circuit breaker selected Fault loop impedance Measuring range according to EN61557 is 0.32 Ω ÷ 19999 Ω . Measuring range ( Ω ) Resolution ( Ω...
  • Page 126 MI 3105 EurotestXA Appendix E Reduced low voltage supply systems RCD selected Loop impedance Measuring range according to EN61557 is 0.85 Ω ÷ 19999 Ω . Measuring range ( Ω ) Resolution ( Ω ) Accuracy * 0.00 ÷ 9.99 0.01 ±...

  • Page 127: Line Impedance And Prospective Short-Circuit Current

    MI 3105 EurotestXA Appendix E Reduced low voltage supply systems E.4.3 Line impedance and prospective short-circuit current Line-Line Measuring range according to EN61557 is 0.25 Ω ÷ 19.9 k Ω . Measuring range ( Ω ) Resolution ( Ω ) Accuracy 0.00 ÷...

  • Page 128: F Appendix F - Country Notes

    MI 3105 EurotestXA Appendix F Country notes F Appendix F – Country notes This appendix F contains collection of minor modifications related to particular country requirements. Some of the modifications mean modified listed function characteristics related to main chapters and others are additional functions. Some minor modifications are related also to different requirements of the same market that are covered by various suppliers.

  • Page 129: Es Modification - Continuity Loop Re

    MI 3105 EurotestXA Appendix F Country notes recover type RCD after pretests and time delay of 5 s is inserted for the same purpose type RCD. Modification of the chapter 5.3.1 Contact voltage Uc RCD type Rated I ΔN proportional to 1.05 ×...
  • Page 130 MI 3105 EurotestXA Appendix F Country notes Circuit for measurement the resistance of PE wire Outlets and consumers Distribution board Step 1 Step 2 Figure F.1: Two step procedure for PE wiring resistance measurement – connection of plug commander and universal test cable Auto sequence recommendation For measurement of the PE resistance the following shall be applied: Two auto sequences with at least one function can be prepared (see 4.3 ).

  • Page 131: It Modification - Continuity Loop Re

    MI 3105 EurotestXA Appendix F Country notes LOOP Re at distribution board LOOP Re at wall socket Figure F.2: Examples of LOOP Re measurement results Displayed results: Re....Resistance of PE wiring at distribution board. Rpe....Resistance of PE wiring between distribution board and wall socket. Re_outlet ...Resistance of complete PE wiring.
  • Page 132 MI 3105 EurotestXA Appendix F Country notes Circuit for measurement the resistance of PE wire Outlets and consumers Distribution board Step 1 Step 2 Figure F.3: Two step procedure for PE wiring resistance measurement – connection of plug commander and universal test cable Auto sequence recommendation For measurement of the PE resistance the following shall be applied: Two auto sequences with at least one function can be prepared (see 4.3 ).

  • Page 133: Ch Modification - Change L/N

    MI 3105 EurotestXA Appendix F Country notes LOOP Re at distribution board LOOP Re at wall socket Figure F.4: Examples of LOOP Re measurement results Displayed results: Re....Resistance of PE wiring at distribution board. Rpe....Resistance of PE wiring between distribution board and wall socket. Re_outlet ...Resistance of complete PE wiring.
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