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

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EurotestAT
MI 3101
Instruction manual
Version UK 4.4, HW5, Code no. 20 751 320

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Summary of Contents for METREL EurotestAT MI 3101

  • Page 1 EurotestAT MI 3101 Instruction manual Version UK 4.4, HW5, Code no. 20 751 320...
  • 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...2014 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 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 ..................13 Front panel ......................13 Connector panel ....................14 Back panel......................15 Bottom .........................16...
  • Page 4 MI 3101 EurotestAT Table of contents 5.3.2 General 200 mA measurement ................... 54 5.3.3 7 mA resistance measurement..................56 5.3.4 Star circuit resistance R2 measurement ..............57 5.3.5 Star circuit R1+R2 measurement ................59 Continuity in ring final circuits ................61 5.4.1 Ring circuit resistance R1+R2 measurement ..............
  • Page 5 MI 3101 EurotestAT Table of contents 8.4.1 General data......................114 8.4.2 Contact voltage RCD-Uc ................... 114 8.4.3 Trip-out time ......................114 8.4.4 Trip-out current......................115 Fault loop impedance and prospective fault current ..........115 8.5.1 No disconnecting device or FUSE selected .............. 115 8.5.2 RCD selected ......................

  • 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. 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 3101 EurotestAT: Safety and operational considerations `Battery and charging 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 that were unused for a longer period (more than 3 months).

  • 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 – EMC requirements EN 61326 Class B (Hand held equipment used in controlled EM environments)

  • 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. 2 HELP Accesses help menus.

  • 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 Bluetooth dongle and 3 PS/2 connector connection to optional 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 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 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 display monitor 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 - Tests

    MI 3101 EurotestAT: Instrument description Display organization High electrical noise during measurement. Results may be impaired. 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 –...

  • Page 20: Backlight And Contrast Adjustments

    MI 3101 EurotestAT: Instrument description Display organization Keys in help menu:  /  Select neighbour help screen. HELP Rotates through help screens. Exits help menu. Figure 3.7: Examples of help screen 3.5.9 Backlight and contrast adjustments With the BACKLIGHT key backlight and contrast can be adjusted. Click Toggle backlight intensity level.

  • 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: The instrument hangs around operators neck only - quick placing and...

  • 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 / inspection menu (see 4.2),  Auto sequence menu (see 4.3),  Miscellaneous (see 4.4). ...

  • Page 23: Single Test / Inspection

    MI 3101 EurotestAT: Instrument operation Single test / Inspection 4.2 Single test / Inspection intended individual measurement functions. is intended for visual inspections. Figure 4.2: Example of typical Single test screen Keys in main Single test screen: Select test / measurement function: <VOLTAGE>...
  • Page 24 MI 3101 EurotestAT: Instrument operation Single test / Inspection Keys in main Inspection screen: Select inspection type: <FULL SCHEDULE> Schedule for standard installations.   /  <DOMESTIC SCHEDULE > Schedule for domestic installations.  <FUNCTIONAL INSPECTION> Schedule for functional inspection at the ...

  • Page 25: 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 sequence screen Saving and renaming options.

  • Page 26: Auto Sequence Number Main Menu

    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. Overall PASS result is reported if all performed tests passed.

  • Page 27: Auto Sequence Set

    MI 3101 EurotestAT: Instrument operation Automatic testing ♦ Repeat this part until all results are observed. Viewing of the results is finished by pressing the key  until selected sequence  number is focused or by pressing the ESC key. 4.3.2 Auto sequence set Keys in main auto sequence menu: Starts the selected test sequence.

  • Page 28: Test Parameters In Auto Sequence

    MI 3101 EurotestAT: Instrument operation Automatic testing Note: It is recommended to save current auto sequence if modified or new prepared, to  keep it during manipulation. 4.3.3 Test parameters in auto sequence Keys in test parameter menu (in auto sequence): ...

  • Page 29: 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 30: 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. Figure 4.12: Store dialog Keys: ...

  • Page 31: 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 32 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 sequence main TEST menu.

  • Page 33: 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. TEST Confirms storing the comment and returns. Returns to Edit comments menu. Note: It is not possible to overwrite comments associated to locked auto sequences.
  • Page 34 MI 3101 EurotestAT: Instrument operation Automatic testing Figure 4.20: Blank auto sequence Example of building an auto sequence A radial circuit (fuse type BS88, In = 6 A, td = 5 s) with RCD (type AC, I = 30 mA) shall N be tested.
  • Page 35 MI 3101 EurotestAT: Instrument operation Automatic testing 4.3.2 Enter test parameter selection mode. FUSE type BS88 FUSE I Set test parameters for line impedance. FUSE T 4.3.2 Exit parameter mode. 4.3.2 Set PAUSE (wait to prepare for measurement).  /  4.3.7 Set PAUSE: ON.
  • Page 36 MI 3101 EurotestAT: Instrument operation Automatic testing 4.3.5 Store prepared test sequence. 4.3.5 Confirm storing. TEST 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,  Selection of communication port, ...

  • 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 limit of Set Isc factor maximum line/loop impedance. 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 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. TEST Enters selected 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: The default setup is listed below: Instrument setting Default value Contrast...
  • Page 42 MI 3101 EurotestAT: Instrument operation Miscellaneous Other instrument options can be set in this menu. Options are: Unlocking default autotests &  comments Setting units of measurements  Commander support  Initialization of Bluetooth dongle Figure 4.28: Other settings dialogue ...
  • Page 43 MI 3101 EurotestAT: Instrument operation Miscellaneous Commander support The commanders operation can be set in this menu. Figure 4.31: Commander operation menu  /  Selects commander enabled / disabled TEST Enters selected option. Exits the menu without changes. Note: Commander disabled option is intended to disable the commander’s remote keys.

  • Page 44: Communication Port

    The Bluetooth dongle A 1436 should always be initialized before first use with the  instrument. If the dongle was initialized by another Metrel instrument it will probably not work  properly when working with the previous instrument again. Bluetooth dongle initialization should be repeated in that case.
  • Page 45 MI 3101 EurotestAT: Instrument operation Miscellaneous 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. Figure 4.34: Operator menu Keys: ...

  • Page 46: Measurements

    MI 3101 EurotestAT: Measurements Inspections 5 Measurements 5.1 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 4.2 Inspection for functionality of keys in Main inspection menu.
  • Page 47 MI 3101 EurotestAT: Measurements Inspections Figure 5.2: Examples of results Markings: ...Inspection was not performed ...Inspection passed....Inspection failed....Inspection was performed in limited extent....Inspection was not applicable...

  • Page 48: Insulation Resistance

    MI 3101 EurotestAT: Measurements Insulation resistance 5.2 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 49 MI 3101 EurotestAT: Measurements Insulation resistance mains voltage switched off loads disconnected loads disconnected Figure 5.5: Connection of plug cable and universal test cable for insulation resistance measurement (TESTS: ‘L-PE,N-PE’, ‘L-N,L-PE’, ALL; L1-L2, L1-L3, L2-L3, All 3ph) Insulation resistance measuring procedure Select the INSULATION function.
  • Page 50 MI 3101 EurotestAT: Measurements Insulation resistance Displayed results: Rln ..Insulation resistance between L (+) and N (-). Rlpe ..Insulation resistance between L (+) and PE (-). Rnpe ..Insulation resistance between N (+) and PE (-). R12 ..Insulation resistance between L1 (+) and L2 (-). R13 ..Insulation resistance between L1 (+) and L3 (-).

  • Page 51: General Resistance Measurements (Including Continuity Of Star Circuit Connections)

    MI 3101 EurotestAT: Measurements General resistance + star connections 5.3 General resistance measurements (including continuity of star circuit connections) The resistance measurement is performed in order to assure that protective measures against electric shock through earth bond connections are effective. The following sub- functions are available: Earth bond resistance measurement according to EN 61557-4 (200 mA), ...

  • Page 52: Compensation Of Test Leads Resistance

    MI 3101 EurotestAT: Measurements General resistance + star connections 5.3.1 Compensation of test leads resistance This chapter describes common principle for compensation of test leads resistance for CONTINUITY, RING CONTINUITY and POLARITY functions. The compensation is required to eliminate the influence of test leads resistance plus internal resistances of the instrument.
  • Page 53 MI 3101 EurotestAT: Measurements General resistance + star connections extension lead Figure 5.9: Shorted test leads Compensation of test leads resistance procedure Select the CONTINUITY RING CONT. POLARITY function (any).  Connect test cable to the instrument and short terminals (see figure 5.9). ...

  • Page 54: General 200 Ma Measurement

    MI 3101 EurotestAT: Measurements General resistance + star connections 5.3.2 General 200 mA measurement The resistance measurement is performed with automatic polarity reversal of the test voltage. Test circuit for General 200 mA measurement MPEC..Main Potential Equilizing Collector PCC..Protection Conductor Collector PCC3 L/L1 PCC1...
  • Page 55 MI 3101 EurotestAT: Measurements General resistance + star connections Figure 5.11: Example of continuity, general 200mA result Displayed results: R....Main resistance result (average of R+ and R- results), R+....Resistance with positive voltage at N terminal, R- ....Resistance with positive voltage at PE terminal.

  • Page 56: Ma Resistance Measurement

    MI 3101 EurotestAT: Measurements General resistance + star connections 5.3.3 7 mA resistance measurement In general this function serves as standard -meter with low test current. The measurement is performed continuously with no pole reversal. The function can be applied for testing continuity of inductive components.

  • Page 57: Star Circuit Resistance R2 Measurement

    MI 3101 EurotestAT: Measurements General resistance + star connections 5.3.4 Star circuit resistance R2 measurement Measurement of the resistance of protective conductors (R2) is performed with automatic polarity reversal of the test voltage. Test circuit for R2 resistance measurement mains voltage switched off (C.p.c) Figure 5.14: Measurement resistance of PE (C.p.c) connection (R2)
  • Page 58 MI 3101 EurotestAT: Measurements General resistance + star connections Figure 5.15: Example of star circuit R2 measurement result Displayed results: R2....Main result for resistance R2 (average of R+ and R- results), R+....R2 resistance with positive voltage at N terminal, R- ....R2 resistance with positive voltage at PE terminal.

  • Page 59: Star Circuit R1+R2 Measurement

    MI 3101 EurotestAT: Measurements General resistance + star connections 5.3.5 Star circuit R1+R2 measurement Measurement of sum of resistance of phase and protective conductors in final circuit, (R1+R2), is performed with automatic polarity reversal of the test voltage. Test circuit for R1+R2 resistance measurement mains voltage switched off (C.p.c)
  • Page 60 MI 3101 EurotestAT: Measurements General resistance + star connections Figure 5.17: Example of star circuit R1+R2 measurement result Displayed results: R1+R2 ..Main result for resistance R1+R2 (average of R+ and R- results), R+....R1+R2 resistance with positive voltage at phase terminal, R- ....R1+R2 resistance with positive voltage at PE terminal.

  • Page 61: Continuity In Ring Final Circuits

    MI 3101 EurotestAT: Measurements Ring final circuits resistances 5.4 Continuity in ring final circuits Special resistance measurements are intended for checking connections in ring final circuits as defined in BS 7671. See chapter 4.2 Single test for functionality of keys. Figure 5.18: Ring continuity Additional active keys: Commits result to selected position.

  • Page 62: Ring Circuit Resistance R1+R2 Measurement

    MI 3101 EurotestAT: Measurements Ring final circuits resistances 5.4.1 Ring circuit resistance R1+R2 measurement The resistance measurement is performed to measure sum of resistances of line and PE conductors in ring final circuit. Test circuits for R1+R2 resistance measurement mains voltage switched off (C.p.c) Figure 5.19: Step 1 –...
  • Page 63 MI 3101 EurotestAT: Measurements Ring final circuits resistances Ring continuity, R1+R2 resistance measurement procedure 1. step: Ring continuity - r1, rN, r2 resistance measurement procedure Select the RING CONT. function.  Set sub-function R1+R2.  Select measuring cable.  Connect test cable to the instrument. ...
  • Page 64 MI 3101 EurotestAT: Measurements Ring final circuits resistances Figure 5.21: Example of ring continuity R1+R2 results Displayed results: r1 .....Ring resistance of line conductors, rN ....Ring resistance of neutral conductors, r2 .....Ring resistance of PE conductors (C.p.c.), (R1+R2)max.. Reference test value, (r1+r2)/4 ..

  • Page 65: R1+Rn Measurement

    MI 3101 EurotestAT: Measurements Ring final circuits resistances 5.4.2 R1+RN measurement The resistance measurement is performed with time limited continuous resistance measurement. Test circuit for R1+RN resistance measurement mains voltage switched off (C.p.c) (r1+rN)/4 Figure 5.22: Verification of wall sockets of tested ring final circuit using universal or plug cable Ring continuity, R1+RN resistance measurement procedure 1.
  • Page 66 MI 3101 EurotestAT: Measurements Ring final circuits resistances 2. step: Ring continuity - R1+RN resistance measurement procedure Cross-connect line and neutral conductors of tested ring circuit (see figure 5.22).  Press the TEST key for measurement of the first socket of tested ring final circuit ...

  • Page 67: Auto Measurement

    MI 3101 EurotestAT: Measurements Ring final circuits resistances 5.4.3 Auto measurement With Ring adapter A1214 the ring resistance measurements can be simplified. The unit automatically cares for correct connectivity at the switchboard. R1+R2 and R1+RN measurements can be performed in one go. Test circuits for Auto resistance measurement mains voltage switched off...
  • Page 68 MI 3101 EurotestAT: Measurements Ring final circuits resistances Ring continuity, Auto resistance measuring procedure 1. step: Ring continuity - r1, rN, r2 resistance measuring procedure Select the RING CONT. function.  Set sub-function Auto.  Connect Ring adapter to the instrument. ...
  • Page 69 MI 3101 EurotestAT: Measurements Ring final circuits resistances Figure 5.26: Examples of ring continuity - Auto results Displayed results: r1 .....Ring resistance of line conductors, committed (actual), rN ....Ring resistance of neutral conductors, r2 .....Ring resistance of protective conductors (C.p.c.), (R1+Rn)max..

  • Page 70: Polarity

    MI 3101 EurotestAT: Measurements Polarity 5.5 Polarity This function is intended to check proper connections of fuses and other protective devices, lamp holders, socket outlets and similar devices as defined in BS 7671. See chapter 4.2 Single test for functionality of keys. Figure 5.27: Polarity Additional active key Applies manual pass / fail indication to test result.

  • Page 71: Testing Rcds

    MI 3101 EurotestAT: Measurements Testing RCDs 5.6 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 72: Contact Voltage (Rcd Uc)

    MI 3101 EurotestAT: Measurements Testing RCDs Circuits for testing RCD Figure 5.30: Connecting the plug cable and the universal test cable 5.6.1 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 73: Trip-Out Time (Rcd T)

    MI 3101 EurotestAT: Measurements Testing RCDs Loop resistance is indicative and calculated from Uc result (without additional proportional  factors) according to:  Figure 5.31: Example of contact voltage measurement results Displayed results: Uc..Contact voltage. Rl..Fault loop resistance. Rmax..

  • Page 74: Trip-Out Current (Rcd I )

    MI 3101 EurotestAT: Measurements Testing RCDs 5.6.3 Trip-out current (RCD I Δ 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 Waveform...

  • Page 75: Rcd Autotest

    MI 3101 EurotestAT: Measurements Testing RCDs 5.6.4 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 76 MI 3101 EurotestAT: Measurements Testing RCDs Step 3 Step 4 Step 5 Figure 5.34: Individual steps in RCD autotest Displayed results: ... Step 1 trip-out time (I , 0º), N ..Step 2 trip-out time (I , 180º), N ..Step 3 trip-out time (5I , 0º), N ..

  • Page 77: Fault Loop Impedance And Prospective Fault Current

    MI 3101 EurotestAT: Measurements Fault loop impedance 5.7 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 78 MI 3101 EurotestAT: Measurements Fault loop impedance Fault loop impedance measurement procedure Select the Z-LOOP function.  Select test parameters (optional).  Select measuring mode (optional).  Connect test cable to the EurotestAT.  Connect test leads to the tested object (see figure 5.36). ...
  • Page 79 MI 3101 EurotestAT: Measurements Fault loop impedance Isc is not calculated in case the terminal voltage monitor does not detect voltage  state that corresponds to the selected supply system, indication This measurement will trip-out RCD in RCD-protected electrical installation if FUSE ...

  • Page 80: Line Impedance / Prospective Short-Circuit Current And Voltage Drop

    MI 3101 EurotestAT: Measurements Line impedance / Voltage drop 5.8 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. The Voltage drop sub-function is intended to check that a voltage in the installation stays above acceptable levels if the highest current is flowing in the circuit.

  • Page 81: Line Impedance And Prospective Short Circuit Current

    MI 3101 EurotestAT: Measurements Line impedance / Voltage drop 5.8.1 Line impedance and prospective short circuit current Circuit for measurement of line impedance Figure 5.40: Line-Neutral or Line-Line impedance measurement – connection of plug cable and universal test cable Line impedance measurement procedure Select the Z-LINE function.

  • Page 82: Voltage Drop

    MI 3101 EurotestAT: Measurements Line impedance / Voltage drop ksc ..Z factor (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 83 MI 3101 EurotestAT: Measurements Line impedance / Voltage drop Step 1 - Zref Step 2 - Voltage drop Figure 5.43: Examples of voltage drop measurement result Displayed results: ΔU ...Voltage drop, ....Prospective short-circuit current, Z ....Line impedance at measured point, Zref..Reference impedance Voltage drop is calculated as follows: ...

  • Page 84: Voltage, Frequency And Phase Sequence

    MI 3101 EurotestAT: Measurements Voltage, frequency, phase sequence 5.9 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 85 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 5.45 and 5.46).  Store current measurement result (optional). ...

  • Page 86: Resistance To Earth

    MI 3101 EurotestAT: Measurements Resistance to earth 5.10 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 lightning. 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 87: Specific Earth Resistance Measurement

    MI 3101 EurotestAT: Measurements Resistance to earth MPEC >5d Figure 5.50: Resistance to earth measurement – lightning protection Resistance to earth measurement procedure Select the EARTH function.  Enable and set limit (optional).  Connect test cable to the instrument. ...
  • Page 88 MI 3101 EurotestAT: Measurements Resistance to earth Circuit for specific earth resistance measurement black  Figure 5.52: Specific earth resistance measurement with -adapter Specific earth resistance measurement procedure Select the EARTH function.  Connect -adapter to the instrument.  Select  measurement. ...

  • Page 89: Line/Loop Impedance

     MI 3101 EurotestAT: Measurements line/loop impedance 5.11 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. With this adapter, low impedances up to 1999 m...
  • Page 90  MI 3101 EurotestAT: Measurements line/loop impedance Connect Impedance adapter to the instrument (see figure 5.55).  Select the functions Z-LINE or Z-LOOP.  Enable and set limit value (optional).  Power ON the Impedance adapter (ON/OFF key, green LED lits). ...
  • Page 91  MI 3101 EurotestAT: Measurements line/loop impedance When testing phase-to-phase line impedance the following parameters are displayed in sub-screen: 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 ....

  • Page 92: Pe Test Terminal

    MI 3101 EurotestAT: Measurements PE test terminal 5.12 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 93 MI 3101 EurotestAT: Measurements PE test terminal Notes: In main and miscellaneous menus the PE terminal is not tested.  PE test terminal does not operate in case the operator’s body is completely  insulated from floor or walls!

  • Page 94: Locator

    MI 3101 EurotestAT: Measurements Locator 5.13 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 95 MI 3101 EurotestAT: Measurements Locator Line tracing procedure Select the LOCATOR function in MISC menu.  Connect test cable to the instrument.  Connect test leads to the tested object (see figures 5.60 and 5.61).  Press the TEST key. ...

  • Page 96: Varistor Test

    MI 3101 EurotestAT: Measurements Varistor test 5.14 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 5.63: Varistor test menu Test parameters for varistor test Lo limit...
  • Page 97 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 5.64). ...

  • Page 98: Data Handling

    MI 3101 EurotestAT: Data handling Installation data structure 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 99 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 100 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. HELP Enters installation structure tree screen.

  • Page 101: Storing Test Results

    MI 3101 EurotestAT: Data handling Recalling test results and parameters 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 102: 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 TEST Confirms selected...
  • Page 103 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. Figure 6.9: Stored single test example Keys:...

  • Page 104: 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:  /  Select CANCEL / CLEAR. TEST Confirms selected option.

  • Page 105: 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 106: 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 107 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 108: 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 three communication interfaces available: USB, RS 232 and Bluetooth. 6.7.1 USB and RS232 communication For setting USB or RS 232 communication interface see chapter 4.4.6.

  • Page 109: Bluetooth Communication

    Some Android applications automatically carry out the setup of a Bluetooth  connection. It is preferred to use this option if it exists. This option is supported by Metrel's Android applications. If this option is not supported by the selected Android application then configure a ...

  • Page 110: 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 111: Maintenance

    MI 3101 EurotestAT: Maintenance 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 112: Technical Specifications

    MI 3101 EurotestAT: Technical specifications 8 Technical specifications 8.1 Insulation resistance Insulation L-N, L-PE, N-PE, L1-L2, L1-L3, L2-L3 Insulation resistance (nominal voltages 50 V , 100 V and 250 V Measuring range according to EN61557 is 0.25 M  199.9 M. Accuracy Measuring range (M) Resolution (M)

  • Page 113: Continuity

    MI 3101 EurotestAT: Technical specifications 8.2 Continuity 8.2.1 Resistance General 200mA, R2, R1+R2 Measuring range according to EN61557 is 0.16   1999 . Accuracy Measuring range R () Resolution () 0.00  19.99 0.01 (3 % of reading + 3 digits) 20.0 ...

  • Page 114: Rcd Testing

    MI 3101 EurotestAT: Technical specifications 8.4 RCD testing 8.4.1 General data Nominal residual current ....10 mA, 30 mA, 100 mA, 300 mA, 500 mA, 1000 mA Nominal residual current accuracy..-0 / +0.1I; I = IN, 2IN, 5IN -0.1I / +0; I = 0.5IN AS / NZ selected: ±...
  • Page 115 MI 3101 EurotestAT: Technical specifications  300 mA (RCD types A, F, 5I is not available for I =1000 mA (RCD types AC) or I N N N B, B+).  300 mA (RCD types B, 2I is not available for I =1000 mA (RCD types A, F) or I N N...
  • Page 116 MI 3101 EurotestAT: Technical specifications The accuracy is valid if mains voltage is stable during the measurement. Test current (at 230 V) ...... 6.5 A (10 ms) Nominal voltage range ...... 30 V  500 V (14 Hz  500 Hz) 8.5.2 RCD selected Fault loop impedance Measuring range according to EN61557 is 0.46 ...

  • Page 117: Voltage, Frequency, And Phase Rotation

    MI 3101 EurotestAT: Technical specifications Test current (at 230 V) ...... 6.5 A (10 ms) Nominal voltage range ...... 30 V  500 V (14 Hz  500 Hz) R, XL values are indicative. Voltage drop (calculated value) Measuring range (%) Resolution (%) Accuracy Consider accuracy of line...
  • Page 118 MI 3101 EurotestAT: Technical specifications 200  1999  5 % of reading 2000  9999  10 % of reading Additional spike resistance error if Rc max. or Rp max. is exceeded ..(5 % of reading + 10 digits) Rc max.

  • Page 119: Line/Loop Impedance

    MI 3101 EurotestAT: Technical specifications 8.10 2  line/loop impedance 8.10.1 High precision line impedance Measuring range according to EN61557 is 5.0  1999 m Accuracy Measuring range (m) Resolution (m) 0.1  199.9 (5 % + 1 m) 200  1999 Nominal voltage range ......100 V ...

  • Page 120: Contact Voltage

    MI 3101 EurotestAT: Technical specifications = 230 V  10 % L-PE Calculation of prospective short-circuit current (non-standard voltage value): × × KMAX KMIN × = 230 V  10 % 230 V < U < 400 V N(L-PE) 1.05 1.10 0.95 1.00...

  • Page 121: General Data

    MI 3101 EurotestAT: Technical specifications 8.12 General data Power supply voltage......9 V (61.5 V battery or accu, size AA) Operation .......... typical 13 h Charger socket input voltage .... 12 V  10 % Charger socket input current..... 400 mA max. Battery charging current....

  • Page 122: A Appendix A - Fuse Table

    MI 3101 EurotestAT: Appendix A Fuse table A Appendix A - Fuse table A.1 Fuse table - IPSC 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...
  • Page 123 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 86.4 172.8 340.2...
  • Page 124 MI 3101 EurotestAT: Appendix A Fuse table Fuse type K Rated Disconnection time [s] current Min. prospective short- circuit current (A) 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 125: Fuse Table - Impedances (Uk)

    MI 3101 EurotestAT: Appendix A Fuse table A.2 Fuse table - impedances (UK) Fuse type B Fuse type C Rated Disconnection time [s] Rated Disconnection time [s] current current Max. loop impedance () Max. loop impedance () 12,264 12,264 6,136 6,136 3,064 3,064...

  • Page 126: 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 127: 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 128: 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. c o rre c t po sitio n R e c eiv er R1 0K sw itc h e d in...

  • Page 129: C.3 R10K Power Supply

    MI 3101 EurotestAT: Appendix C Locator receiver R10K * WARNING! Avoid connection of the EurotestAT in trace mode between line and PE of different wall sockets, electric shock hazard! C.3 R10K power supply The receiver R10K is supplied by a 9 V alkaline battery (IEC 6LR61). C.4 Maintenance Remove battery from R10K when not in use for a longer time.

  • Page 130: 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. D.1 Standard references EN 60364-4-41, EN 60364-6, EN 60364-7-710, BS 7671 D.2 Fundamentals...

  • Page 131: 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 132: 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. Phase rotation For three phase system only, automatic detection.

  • Page 133: 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 134: 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. Reduced low voltage Note system functions...
  • Page 135 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 136: 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 137: E.4.2 Fault Loop Impedance And Prospective Short-Circuit Current

    MI 3101 EurotestAT: Appendix E Reduced low voltage supply systems  300 mA (RCD types B, 2I is not available for I =1000 mA (RCD types A, F) or I N N N B+). 1I is not available I =1000 mA (RCD Types B, B+). N N Trip-out current...
  • Page 138 MI 3101 EurotestAT: Appendix E Reduced low voltage supply systems IPSC calculation: ........IPSC = UNkSC / ZL-PE = 55 V; (44 V  Uinp  61 V) for selected 55 V single-phase system = 63 V; (56 V  Uinp  70 V) for selected 63 V three-phase system Maximum loading........

  • Page 139: 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. Accuracy Measuring range () Resolution () 0.00  9.99 0.01 10.0  99.9 100 ...

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