METREL MI 3101 EurotestAT Instruction Manual
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METREL MI 3101 EurotestAT Instruction Manual

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EurotestAT
MI 3101

Instruction manual

Version 5.0, HW 5; Code no. 20 751 834

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  • Page 1: Instruction Manual

    EurotestAT MI 3101 Instruction manual Version 5.0, HW 5; Code no. 20 751 834...
  • Page 2 Mark on your equipment certifies that this equipment meets the requirements of the EU (European Union) concerning safety and electromagnetic compatibility regulations © 2005..2010 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 MI 3101 EurotestAT 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 ......................
  • Page 4 MI 3101 EurotestAT Table of contents 5.3.1 Contact voltage (RCD Uc) ..................53 5.3.2 Trip-out time (RCD t) ....................54 5.3.3 Trip-out current (RCD I ) ..................55  5.3.4 RCD Autotest ......................56 Fault loop impedance and prospective fault current............58 Line impedance / prospective short-circuit current and Voltage drop ......
  • Page 5 MI 3101 EurotestAT Table of contents Earth resistance ......................95 2  line/loop impedance....................96 8.9.1 High precision line impedance ................96 8.9.2 High precision fault loop impedance ............... 97 8.9.3 Contact voltage ....................... 98 8.10 Varistor test ........................98 8.11...

  • Page 6: Preface

    MI 3101 EurotestAT 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 EurotestAT is intended for all tests and measurements required for total inspection of electrical installations in buildings.

  • Page 7: Safety And Operational Considerations

    MI 3101 EurotestAT: 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 EurotestAT, 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...
  • Page 8 MI 3101 EurotestAT: 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 ...
  • Page 9 MI 3101 EurotestAT: Safety and operational considerations Warnings and notes Z-LOOP Fault loop impedance measurement (protection: FUSE or no protection ---) 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 ...

  • Page 10: Battery And Charging

    MI 3101 EurotestAT: 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.

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

    MI 3101 EurotestAT: 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 ...

  • Page 12: Standards Applied

    MI 3101 EurotestAT: Safety and operational considerations Standards applied 2.3 Standards applied The MI 3101 EurotestAT instrument is manufactured and tested according to the following regulations, listed below. Electromagnetic compatibility (EMC) Electrical equipment for measurement, control and laboratory use –...

  • Page 13: Instrument Description

    MI 3101 EurotestAT: 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.

  • Page 14: Connector Panel

    MI 3101 EurotestAT: 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 3101 EurotestAT: 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...

  • Page 16: Bottom

    MI 3101 EurotestAT: Instrument description Bottom 3.4 Bottom RCD (EN 61557-6) Continuity I : 10mA, 30mA, 100mA, 300mA, 500mA, 1A R Low (EN 61557-4) Nominal voltage: 100V 264V / 15Hz 500Hz R: 0.12 1999 Test current: min. ±200mA at 2 Contact voltage U : 0.0V...

  • Page 17: Display Organization

    MI 3101 EurotestAT: 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 system).

  • Page 18: Menu Line

    MI 3101 EurotestAT: 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 informations about active cursor / TEST keys and battery condition are shown.

  • Page 19: Result Field

    MI 3101 EurotestAT: Instrument description Display organization Probe resistances Rc or Rp 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).

  • Page 20: Backlight And Contrast Adjustments

    MI 3101 EurotestAT: 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. Click Toggle backlight intensity level. 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 3101 EurotestAT: 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:...

  • Page 22: Instrument Operation

    MI 3101 EurotestAT: Instrument operation Main menu 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). ...

  • Page 23: Single Test

    MI 3101 EurotestAT: Instrument operation Single test 4.2 Single test is intended to run individual test / measurement functions. Figure 4.2: Example of typical Single test screen Keys in main single test screen: Select test / measurement function: <VOLTAGE> Voltage and frequency plus phase sequence.

  • Page 24: Automatic Testing

    MI 3101 EurotestAT: 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 3101 EurotestAT: 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.

  • Page 26: Auto Sequence Number Main Menu

    MI 3101 EurotestAT: Instrument operation Automatic testing 4.3.1 Auto sequence number main menu In the instrument up to 99 automatic 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 3101 EurotestAT: 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: Name And Description Of Auto Sequence

    MI 3101 EurotestAT: Instrument operation Automatic testing 4.3.4 Name and description of auto sequence Enters test sequence name menu from auto sequence main menu. Name and description for the selected auto sequence can be added or changed (optional) in this two level menu.

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

    MI 3101 EurotestAT: 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.

  • Page 30: Pause Flag And Comments In Auto Sequence

    MI 3101 EurotestAT: 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 3101 EurotestAT: 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.

  • Page 32: Building An Auto Sequence

    MI 3101 EurotestAT: 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.
  • Page 33 MI 3101 EurotestAT: 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 3101 EurotestAT: Instrument operation Automatic testing Example: Chapter Item/keys Comment reference Selection of auto sequence operation in main Auto sequence, TEST menu.  /  4.3.1 Selection of test sequence number 10. 4.3.4 Enter into sequence name editing menu.
  • Page 35 MI 3101 EurotestAT: Instrument operation Automatic testing  (3 x) 4.3.7 Select COMMENT: #1. 4.3.7 Confirm selected pause and its comment. TEST  Next step.  /  4.3.2 Select INSULATION. 4.3.2 Enter test parameter selection mode. TEST 500 V Setting test parameters for insulation resistance.
  • Page 36 MI 3101 EurotestAT: Instrument operation Automatic testing 4.3.2 Exit parameter mode.  (6 x) Exit the editing of sequence field. 4.3.5 Store prepared test sequence. TEST 4.3.5 Confirm storing. Figure 4.21: Auto sequence screen of the example above...

  • Page 37: Miscellaneous

    MI 3101 EurotestAT: 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, ...

  • Page 38: Supply System, Isc Factor, Rcd Standard

    MI 3101 EurotestAT: 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.
  • Page 39 MI 3101 EurotestAT: 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: ½I 2I 5I N N...

  • Page 40: Memory

    MI 3101 EurotestAT: 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.
  • Page 41 MI 3101 EurotestAT: Instrument operation Miscellaneous Keys: TEST Restores default settings. Exits the menu without changes. Opens other settings menu. Warning: Custom made settings will be lost when this option is used!  The default setup is listed below: Instrument setting...
  • Page 42 MI 3101 EurotestAT: Instrument operation Miscellaneous Unlock protected sequences or distance unit can be selected. Figure 4.28: Other settings dialogue Keys:  /  Select other settings item. TEST Enters selected item. Exits the menu without changes. Unlocking autotests and comments...

  • Page 43: Communication Port

    MI 3101 EurotestAT: Instrument operation Miscellaneous 4.4.6 Communication port The communication port (RS232 or USB) can be selected in this menu. Figure 4.31: Communication port selection Keys:  /  Select communication port. TEST Confirms selected port. Exits without changes.
  • Page 44 MI 3101 EurotestAT: Instrument operation Miscellaneous Operators name can be entered or modified. Maximum 15 characters can be entered for operator. Figure 4.33: Operator name edit menu Keys: Highlighted key Selected symbol or activity.  /  /  / ...

  • Page 45: Measurements

    MI 3101 EurotestAT: Measurements Insulation 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, ...
  • Page 46 MI 3101 EurotestAT: Measurements Insulation mains voltage switched off loads disconnected Figure 5.3: Application of plug commander and universal test cable for insulation resistance measurement (TEST: ‘L-PE,N-PE’, ‘L-N,L-PE’, ALL) Insulation resistance measuring procedure Select the INSULATION function.  Set test parameters.

  • Page 47: Resistance To Earth Connection And Equipotential Bonding

    MI 3101 EurotestAT: 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 ...
  • Page 48 MI 3101 EurotestAT: 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...

  • Page 49: Ma Resistance Measurement

    MI 3101 EurotestAT: Measurements Continuity 5.2.2 7 mA resistance measurement In general this function serves as standard -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.

  • Page 50: Compensation Of Test Leads Resistance

    MI 3101 EurotestAT: 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 51 MI 3101 EurotestAT: 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 CONTINUITY function (any).  Connect test cable to the instrument and short N/PE or L/PE terminals (see figure ...

  • Page 52: Testing Rcds

    MI 3101 EurotestAT: Measurements Testing 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, ...

  • Page 53: Contact Voltage (Rcd Uc)

    MI 3101 EurotestAT: Measurements Testing 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.

  • Page 54: Trip-Out Time (Rcd T)

    MI 3101 EurotestAT: Measurements Testing RCD Loop resistance is indicative and calculated from Uc result (without additional proportional  factors) according to:  Figure 5.14: Example of contact voltage measurement results Displayed results: Uc..Contact voltage. Rl..Fault loop resistance.

  • Page 55: Trip-Out Current (Rcd I  )

    MI 3101 EurotestAT: Measurements Testing RCD Note: See 4.4.2 RCD standard for selection of appropriate standard test conditions.  5.3.3 Trip-out current (RCD I  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...

  • Page 56: Rcd Autotest

    MI 3101 EurotestAT: Measurements Testing 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 57 MI 3101 EurotestAT: Measurements Testing 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  N, 0º), ..Step 2 trip-out time (½  I  N, 180º), ...

  • Page 58: Fault Loop Impedance And Prospective Fault Current

    MI 3101 EurotestAT: 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 59 MI 3101 EurotestAT: Measurements Fault loop impedance Fault loop impedance measurement procedure Select the Z-LOOP function.  Select test parameters (optional).  Connect test cable to the EurotestAT.  Connect test leads to the tested object (see figure 5.19 ).

  • Page 60: Line Impedance / Prospective Short-Circuit Current And Voltage Drop

    MI 3101 EurotestAT: Measurements Line impedance / Voltage drop 5.5 Line impedance / prospective short-circuit current and Voltage drop Line impedance is measured in loop comprising of mains voltage source and line wiring. It is covered by the requirements of the EN 61557-3 standard.

  • Page 61: Line Impedance And Prospective Short Circuit Current

    MI 3101 EurotestAT: Measurements Line impedance / Voltage drop 5.5.1 Line impedance and prospective short circuit current Circuit for measurement of line impedance Figure 5.23: Phase-neutral or phase-phase line impedance measurement – connection of plug commander and universal test cable...

  • Page 62: Voltage Drop

    MI 3101 EurotestAT: Measurements Line impedance / Voltage drop ksc ..Correction factor for Isc (see chapter 4.4.2 ). Input voltage range (L-N or L1-L2) 110 V (93 V  U  134 V) 230 V (185 V  U  266 V) 400 V (321 V ...
  • Page 63 MI 3101 EurotestAT: Measurements Line impedance / Voltage drop Step 1 - Zref Step 2 - Voltage drop Figure 5.26: Examples of voltage drop measurement result Displayed results: ΔU ...Voltage drop, ....Prospective short-circuit current, Z ....Line impedance at measured point, Zref..Reference impedance...

  • Page 64: Voltage, Frequency And Phase Sequence

    MI 3101 EurotestAT: 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 65 MI 3101 EurotestAT: Measurements Voltage, frequency, phase sequence Voltage measurement procedure Select the VOLTAGE function.  Connect test cable to the instrument.  Connect test leads to the tested object (see figures 5.28 and 5.29 ).  Store current measurement result (optional).

  • Page 66: Resistance To Earth

    MI 3101 EurotestAT: 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 67 MI 3101 EurotestAT: Measurements Resistance to earth MPEC >5d Figure 5.33: Resistance to earth measurement – lighting protection Resistance to earth measurement procedure Select the EARTH function.  Enable and set limit (optional).  Connect test cable to the instrument.

  • Page 68: Specific Earth Resistance Measurement

    MI 3101 EurotestAT: Measurements Resistance to earth 5.7.2 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  Figure 5.35: Specific earth resistance measurement with...

  • Page 69: Line/Loop Impedance

     MI 3101 EurotestAT: Measurements line/loop impedance Note: Distance units can be selected in Miscellaneous/Initial settings/Other settings menu,  see 4.4.5. 5.8 2  line/loop impedance The measurement extends application range of the instrument and is performed with Impedance adapter A1143 connected to the instrument via RS 232 interface. It is automatically recognized in Z-LINE and Z-LOOP functions.
  • Page 70  MI 3101 EurotestAT: Measurements line/loop impedance RS 232 PS/2 Figure 5.38: Connection of impedance adapter to the instrument 2  line/loop impedance measuring procedure Connect Impedance adapter to the instrument (see figure 5.38 ).  Select the functions Z-LINE or Z-LOOP.
  • Page 71  MI 3101 EurotestAT: Measurements line/loop impedance IscMax3Ph..Maximum three-phase prospective short-circuit current. IscMin3Ph..Minimum three-phase prospective short-circuit current. IscMax2Ph..Maximum two-phase prospective short-circuit current. IscMin2Ph..Minimum two-phase prospective short-circuit current. IscStd ....Standard prospective short-circuit current. The following parameters are displayed in sub-screen for loop impedance measurement: IscMaxL-Pe ..

  • Page 72: Pe Test Terminal

    MI 3101 EurotestAT: Measurements PE test terminal 5.9 PE test terminal It can happen that a dangerous voltage is applied to the PE wire or other accessible metal parts. This is a very dangerous situation since the PE wire and MPEs are considered to be earthed.

  • Page 73: Locator

    MI 3101 EurotestAT: Measurements Locator PE terminal test procedure Connect test cable to the instrument.  Connect test leads to the tested object (see figures 5.40 and 5.41 ).  Touch PE test probe (the TEST key) for at least one second.
  • Page 74 MI 3101 EurotestAT: Measurements Locator Typical applications for tracing electrical installation Figure 5.43: Tracing wires under walls and in cabinets Energized installation Selective probe Receiver R10K Figure 5.44: Locating individual fuses Line tracing procedure Select the LOCATOR function in MISC menu.

  • Page 75: Varistor Test

    MI 3101 EurotestAT: Measurements Varistor test 5.11 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.
  • Page 76 MI 3101 EurotestAT: Measurements Varistor test Varistor test procedure Select the VARISTOR TEST function.  Set test parameters.  Disconnect mains supply and consumers from tested overvoltage device.  Connect test cable to the instrument and tested item (see figure 5.47).

  • Page 77: Memory Organization

    MI 3101 EurotestAT: Data handling Memory organization 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, ...
  • Page 78 MI 3101 EurotestAT: Data handling Installation data structure 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.
  • Page 79 MI 3101 EurotestAT: Data handling Installation data structure Keys:  /  /  /  Select the existing location.  Pressed for 2 s opens dialog box for adding a new location. Enters installation structure tree screen. Renames the current location.

  • Page 80: Storing Test Results

    MI 3101 EurotestAT: Data handling Storing test results 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 81: Recalling Test Results And Parameters

    MI 3101 EurotestAT: Data handling Recalling test results and parameters Keys in save test menu - results field: Keys with open dialog:  /  Select stored test result.  /  Select YES / NO. Saves test result into selected line...
  • Page 82 MI 3101 EurotestAT: Data handling Recalling test results and parameters Keys in results field:  /  Select the stored data. TEST Opens selected stored item. TAB, ESC Back to recall memory main menu. Key: Back to recall memory main menu.

  • Page 83: Clearing Saved Data

    MI 3101 EurotestAT: Data handling Clearing saved data 6.5 Clearing saved data From main menu select miscellaneous menu and enter option (see 4.4.3 ). option for erasing complete test select results memory. Figure 6.11: Clear memory Keys:  / ...

  • Page 84: Clearing Specialties

    MI 3101 EurotestAT: Data handling Clearing saved data 6.5.1 Clearing specialties In the result field the particular stored test result can be cleared. Selection of data for clearing Dialog before clear Figure 6.13: Clearing particular test Keys: Keys in opened dialog: ...

  • Page 85: Editing Installation Data Structure

    MI 3101 EurotestAT: Data handling Editing installation data structure 6.6 Editing installation data structure Installation data structure when once stored in the instrument can also be modified during use of the instrument. Editing possibilities are: Adding new location – see 6.6.1 , ...
  • Page 86 MI 3101 EurotestAT: Data handling Editing installation data structure Key: Enters the save test menu. Figure 6.16: Save test menu Keys: Changes structure view. TEST Confirms the new location. Enters name of the location. Figure 6.17: Dialog box for new location Enter name of the location.

  • Page 87: Communication

    MI 3101 EurotestAT: Data handling Communication 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 88: Operation With Barcode Scanner

    In ‘Edit location menu’ (see chapter 6.6, figure 6.18) the location name can be  alternatively read from barcode. Note: Proper operation is assured only with barcode scanners supplied by METREL.  For support of different barcode format refer to Barcode reader’s manual. ...

  • Page 89: Replacing Fuses

    MI 3101 EurotestAT: Maintenance Replacing fuses/Cleaning/Calibration/Service 7 Maintenance Unauthorized person is not allowed to open the EurotestAT 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 EurotestAT instrument.

  • Page 90: Insulation Resistance

    MI 3101 EurotestAT: 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   199.9 M  .

  • Page 91: Continuity

    MI 3101 EurotestAT: Technical specifications 8.2 Continuity 8.2.1 Resistance R200mA (LPE, NPE) Measuring range according to EN61557 is 0.16   1999  . Measuring range R (  ) Resolution (  ) Accuracy 0.00  19.99 0.01  (3 % of reading + 3 digits) 20.0 ...

  • Page 92: Contact Voltage Rcd-Uc

    MI 3101 EurotestAT: Technical specifications RCD test current selection (r.m.s. value calculated to 20ms) according to IEC 61009: IN × 1/2 IN × 1 IN × 2 IN × 5 RCD I AC A B IN (mA)   ...

  • Page 93: Trip-Out Current

    MI 3101 EurotestAT: 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   0.2  I  1.1  I 0.05  I  0.1  I (AC type) N...

  • Page 94: Rcd Selected

    MI 3101 EurotestAT: Technical specifications 8.4.2 RCD selected Fault loop impedance Measuring range according to EN61557 is 0.46   19999  . Measuring range (  ) Resolution (  ) Accuracy * 0.00  9.99  (5 % of reading + 10 digits) 0.01...

  • Page 95: Voltage, Frequency, And Phase Rotation

    MI 3101 EurotestAT: Technical specifications Voltage drop (calculated value) Measuring range (%) Resolution (%) Accuracy Consider accuracy of line 0.0  99.9 impedance measurement measuring range……………………… 0.00 Ω  20.0 Ω 8.6 Voltage, frequency, and phase rotation 8.6.1 Phase rotation ...

  • Page 96: Line/Loop Impedance

    MI 3101 EurotestAT: Technical specifications or 50 k  (whichever is lower) Rp max..........100 R Automatic test of probe resistance..yes Additional error at 3 V voltage noise (50 Hz).... (5 % of reading +10 digits) Automatic test of voltage noise ..yes Noise voltage indication threshold ..

  • Page 97: High Precision Fault Loop Impedance

    MI 3101 EurotestAT: Technical specifications Nominal voltage range ......100 V  440 V Nominal frequency ........50 Hz Maximum test current (at 400V)....267 A (10 ms) Calculation of prospective short-circuit current (standard voltage value): = 230 V  10 % = 400 V  10 % Calculation of prospective short-circuit current (non-standard voltage value): ×...

  • Page 98: Contact Voltage

    MI 3101 EurotestAT: Technical specifications = 230 V  10 % 230 V < U < 400 V N(L-PE) 1.05 1.10 0.95 1.00 8.9.3 Contact voltage Measuring range (V) Resolution (V) Accuracy 0  100  (10 % + 3 digits) 8.10 Varistor test...

  • Page 99: General Data

    MI 3101 EurotestAT: Technical specifications 8.11 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.

  • Page 100: A Appendix A - Fuse Table

    MI 3101 EurotestAT: Appendix A Fuse table A Appendix A - Fuse table 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 38.8 31.9 18.7 102.8 56.5 46.4 26.7 165.8...
  • Page 101 MI 3101 EurotestAT: 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...
  • Page 102 MI 3101 EurotestAT: 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 103: B Appendix B - Accessories For Specific Measurements

    MI 3101 EurotestAT: Appendix B Accessories for specific measurements 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 104: C Appendix C – Locator Receiver R10K

    MI 3101 EurotestAT: Appendix C Locator receiver R10K C Appendix C – Locator receiver R10K The highly sensitive hand-held receiver R10K detects the fields caused by the currents in the traced line. It generates sound and visual output according to the signal intensity. The operating mode switch in the head detector should always be set in IND (inductive) mode.

  • Page 105: C.1 Tracing Principles

    MI 3101 EurotestAT: 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...

  • Page 106: C.1.3 Positioning Selective Probe

    MI 3101 EurotestAT: 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 107: 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 108: D.3 Measurement Guides

    MI 3101 EurotestAT: 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.

  • Page 109: D.3.1 Mi 3101 Test Functions And It Systems

    MI 3101 EurotestAT: Appendix D IT supply systems D.3.1 MI 3101 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.

  • Page 110: E Appendix E - Reduced Low Voltage Supply Systems

    MI 3101 EurotestAT: 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 111: E.3.1 Mi 3101 Functions And Reduced Low Voltage Systems

    MI 3101 EurotestAT: Appendix E Reduced low voltage supply systems E.3.1 MI 3101 functions and reduced low voltage systems The table below contains EurotestAT functions intended for test and measurement of supply systems with compatibility notes related to the reduced low voltage system.
  • Page 112 MI 3101 EurotestAT: 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  Tests are carried out for both combination L1-PE and L2-PE automatically.

  • Page 113: E.4 Technical Specifications

    MI 3101 EurotestAT: 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 mA, 30 mA, 100 mA, 300 mA, 500 mA, 1 A Accuracy of actual differential currents: ..
  • Page 114 MI 3101 EurotestAT: 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 0.0  40.0 ...

  • Page 115: E.4.2 Fault Loop Impedance And Prospective Short-Circuit Current

    MI 3101 EurotestAT: 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   19999  . Measuring range (  ) Resolution ( ...
  • Page 116 MI 3101 EurotestAT: Appendix E Reduced low voltage supply systems RCD selected Loop impedance Measuring range according to EN61557 is 0.85   19999  . Measuring range (  ) Resolution (  ) Accuracy * 0.00  9.99 ...

  • Page 117: E.4.3 Line Impedance And Prospective Short-Circuit Current

    MI 3101 EurotestAT: 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   19.9 k  . Measuring range (  ) Resolution (  ) Accuracy 0.00 ...

  • Page 118: F Appendix F – Country Notes

    MI 3101 EurotestAT: 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 119: F.2.2 Es Modification - Continuity Loop Re

    MI 3101 EurotestAT: Appendix F Country notes pre-test in the measuring procedure also influences the RCD and it takes a period to recover into idle state. Time delay of 30 s is inserted before performing trip-out test to recover type RCD after pretests and time delay of 5 s is inserted for the same purpose type RCD.
  • Page 120 MI 3101 EurotestAT: 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...

  • Page 121: F.2.3 It Modification - Continuity Loop Re

    MI 3101 EurotestAT: 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.
  • Page 122 MI 3101 EurotestAT: 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...

  • Page 123: F.2.4 Ch Modification - Change L/N

    MI 3101 EurotestAT: 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.

  • Page 124: G Appendix G – Es1; Application Of Regulative Une-202008

    MI 3101 EurotestAT: Appendix G ES1 – application of regulative UNE-202008 G Appendix G – ES1; application of regulative UNE-202008 ES1 modification enables operator to select limits and test procedures according to national regulative UNE-202008. G.1 Main menu In the Main menu an additional operation mode to those listed in chapter 4.1 can be set.

  • Page 125: G.2 Miscellaneous

    MI 3101 EurotestAT: Appendix G ES1 – application of regulative UNE-202008 G.2 Miscellaneous menu as defined in chapter 4.4 Miscellaneous has additional option. Additional option is: Selection standard or regulative  supported measurement. Figure G.1: Options in Miscellaneous menu G.2.1...

  • Page 126: G.3.1 Inspections

    MI 3101 EurotestAT: Appendix G ES1 – application of regulative UNE-202008 G.3.1 Inspections This function is intended to support visual inspections of tested installation or installation assemblies. Result flags for each individual item can be set. See chapter G.1.1 Inspection for functionality of keys in Main inspection menu.

  • Page 127: G.3.2 Resistance To Earth Connection And Equipotential Bonding

    MI 3101 EurotestAT: Appendix G ES1 – application of regulative UNE-202008 Figure G.4: Examples of results Markings: ...Inspection was not performed ...Inspection passed....Inspection failed. G.3.2 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.
  • Page 128 MI 3101 EurotestAT: Appendix G ES1 – application of regulative UNE-202008 See chapter 4.2 Single test for functionality of keys. Figure G.5: Continuity Test parameters for resistance measurement TEST Resistance measurement sub-function [R200mA NPE, R7mA NPE, R200mA LPE, R7mA LPE, R-PE(loop)]...
  • Page 129 MI 3101 EurotestAT: Appendix G ES1 – application of regulative UNE-202008 G.3.2.3 R-PE(loop) measurement It is based on Z-Loop measurement which also gives reference value measured at e.g. switchboard or common coupling point of tested electrical installation. Test circuit for R-PE(loop) measurement Figure G.6: Connection for reference (1) and socket measurements...

  • Page 130: G.3.3 Fault Loop Impedance And Prospective Fault Current

    MI 3101 EurotestAT: Appendix G ES1 – application of regulative UNE-202008 Displayed results: Rpe..Resistance of PE conductor between reference point and tested socket, RPEcal ..PE resistance value of reference socket (given in Z-LOOP function). Notes: Warning! Measurement is executed on live installation! ...
  • Page 131 MI 3101 EurotestAT: Appendix G ES1 – application of regulative UNE-202008 Fault loop impedance measurement procedure Select the Z-LOOP function.  Select test parameters (optional).  Connect test cable to the EurotestAT.  Connect test leads to the tested object (see figure G.9 ).

  • Page 132: G.3.4 Line Impedance And Prospective Short-Circuit Current

    MI 3101 EurotestAT: Appendix G ES1 – application of regulative UNE-202008 G.3.4 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.
  • Page 133 MI 3101 EurotestAT: Appendix G ES1 – application of regulative UNE-202008 Line to neutral Line to line Figure G.13: 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.

  • Page 134: H Appendix H – Dk Modifications

    MI 3101 EurotestAT: Appendix H DK modifications H Appendix H – DK modifications DK modifications relate to modified fault loop test group. H.1 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.
  • Page 135 MI 3101 EurotestAT: Appendix H DK modifications Circuits for measurement of fault loop impedance Figure H.2: Connection of plug cable and universal test cable Fault loop impedance measurement procedure Select the Z-LOOP function.  Select test parameters (optional).  Connect test cable to the EurotestAT.
  • Page 136 MI 3101 EurotestAT: Appendix H DK modifications Prospective fault current I is calculated from measured impedance as follows:   where: Un ..Nominal U voltage (see table below), L-PE ksc ..Correction factor for Isc (see chapter 4.4.2 ). Input voltage (L-PE) 110 V (93 V ...

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