METREL EurotestIM Instruction Manual
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METREL EurotestIM Instruction Manual

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EurotestIM
MI 3110
Instruction manual
Version 1.2.2, Code no. 20 752 063

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Summary of Contents for METREL EurotestIM

  • Page 1 EurotestIM MI 3110 Instruction manual Version 1.2.2, Code no. 20 752 063...
  • Page 2 Mark on your equipment certifies that it meets requirements of all subjected EU regulations. Hereby, Metrel d.d. declares that the MI 3110 is in compliance with subjected EU directive. The full text of the EU declaration of conformity is available at the following internet address https://www.metrel.si/DoC.

  • Page 3: Table Of Contents

    MI 3110 EurotestIM Table of contents Table of contents Preface ........................5 Safety and operational considerations ..............6 Warnings and notes ..................6 Battery and charging ..................8 Standards applied ................... 10 Instrument description ..................11 Front panel ...................... 11 Connector panel ....................
  • Page 4 MI 3110 EurotestIM Table of contents Clearing stored data ..................43 6.5.1 Clearing complete memory content ............... 43 6.5.2 Clearing measurement(s) in selected location ............43 6.5.3 Clearing individual measurements ................. 44 6.5.4 Renaming installation structure elements (upload from PC) ........45 Communication ....................

  • Page 5: Preface

    1 Preface Congratulations on your purchase of the Eurotest instrument and its accessories from METREL. The instrument was designed on a basis of rich experience, acquired through many years of dealing with electric installation test equipment. The Eurotest instrument is a professional, multifunctional, hand-held test instrument intended to perform all the measurements on a.c.

  • Page 6: Safety And Operational Considerations

    2.1 Warnings and notes In order to maintain the highest level of operator safety while carrying out various tests and measurements, Metrel recommends keeping your Eurotest instruments in good condition and undamaged. When using the instrument, consider the following general...
  • Page 7 MI 3110 EurotestIM Safety and operational considerations All normal safety precautions must be taken in order to avoid risk of ❑ electric shock while working on electrical installations! Warnings related to safety of measurement functions: Testing PE terminal PE test probe (TEST key) is activated, but does not inhibit selected test if voltage ❑...

  • Page 8: Battery And Charging

    MI 3110 EurotestIM Safety and operational considerations 2.2 Battery and charging The instrument uses six AA size alkaline or rechargeable Ni-MH battery cells. Nominal operating time is declared for cells with nominal capacity of 2100 mAh. Battery condition is always displayed in the lower right display part. In case the battery is too weak the instrument indicates this as shown in Figure 2.1.
  • Page 9 (more than 6 months). In this case Metrel recommends repeating the charge / discharge cycle at least 2-4 times. If no improvement is achieved after several charge / discharge cycles, then each ❑...

  • Page 10: Standards Applied

    MI 3110 EurotestIM Safety and operational considerations 2.3 Standards applied The Eurotest instruments are manufactured and tested in accordance with the following regulations: Electromagnetic compatibility (EMC) EN 61326 Electrical equipment for measurement, control and laboratory use – EMC requirements Class B (Hand-held equipment used in controlled EM environments)

  • Page 11: Instrument Description

    MI 3110 EurotestIM Instrument description 3 Instrument description 3.1 Front panel Figure 3.1: Front panel Legend: 1 LCD 128 x 64 dots matrix display with backlight. 2  Modifies selected parameter. 3  4 TEST Starts measurements. Acts also as the PE touching electrode.

  • Page 12: Connector Panel

    MI 3110 EurotestIM Instrument description 3.2 Connector panel Figure 3.2: Connector panel Legend: Test connector Measuring inputs / outputs Charger socket USB connector Communication with PC USB (1.1) port Protection cover PS/2 connector Communication with PC serial port Warnings! Maximum allowed voltage between any test terminal and ground is 600 V! ❑...

  • Page 13: Back Side

    MI 3110 EurotestIM Instrument description 3.3 Back side Figure 3.3: Back panel Legend: Battery / fuse compartment cover Back panel information label Fixing screws for battery / fuse compartment cover Figure 3.4: Battery and fuse compartment Legend: Fuses F2, F3...

  • Page 14: Carrying The Instrument

    MI 3110 EurotestIM Instrument description Serial number label Battery cells & holder Size AA, alkaline / rechargeable NiMH. RCD (EN 61557-6) Continuity R Low (EN 61557-4) I : 10mA, 30mA, 100mA, 300mA, 500mA, 1A R: 0.12 1999 Nominal voltage: 100V...

  • Page 15: Instrument Set And Accessories

    The instrument can be used even when placed in soft carrying bag – test cable connected to the instrument through the front aperture. 3.5 Instrument set and accessories 3.5.1 Standard set MI 3110 Instrument MI 3110 EurotestIM ❑ Soft carrying bag ❑ Mains measuring cable ❑...

  • Page 16: Instrument Operation

    MI 3110 EurotestIM Instrument operation 4 Instrument operation 4.1 Display organization Function name Result field Test parameter field Message field Figure 4.1: Typical function Terminal voltage monitor display Battery indication 4.1.1 Terminal voltage monitor The terminal voltage monitor displays on-line the voltages on the test terminals and information about active test terminals in the a.c.

  • Page 17: Results

    MI 3110 EurotestIM Instrument operation Instrument is overheated. The measurement is prohibited until the temperature decreases under the allowed limit. Result(s) can be stored. High electrical noise was detected during measurement. Results may be impaired. Single fault condition in IT system.

  • Page 18: Backlight And Contrast Adjustments

    MI 3110 EurotestIM Instrument operation 4.1.7 Backlight and contrast adjustments With the BACKLIGHT key backlight and contrast can be adjusted. Click Toggles backlight intensity level. Locks high intensity backlight level until power is turned off or the Keep pressed for 1 s key is pressed again.
  • Page 19 MI 3110 EurotestIM Instrument operation General rule regarding enabling parameters for evaluation of measurement / test result: No limit values, indication: _ _ _. Value(s) – results will be marked as PASS or FAIL in Parameter accordance with selected limit.

  • Page 20: Instruments Main Menu

    MI 3110 EurotestIM Instrument operation 4.3 Instruments main menu In instrument’s main menu the test mode can be selected. Different instrument options can be set in the SETTINGS menu. <AUTO SEQUENCE> automatic testing ❑ <SINGLE TESTS> a.c. LV IT installation testing ❑...

  • Page 21: Memory

    MI 3110 EurotestIM Instrument operation 4.4.1 Memory In this menu the stored data can be recalled or deleted. See chapter 6 Data handling for more information. Figure 4.6: Memory options Keys:  /  Selects option. TEST Enters selected option.

  • Page 22: Isc Factor

    MI 3110 EurotestIM Instrument operation 4.4.4 Isc factor In this menu the Isc factor for calculation of short circuit current in Z-LINE measurements can be set. Figure 4.9: Selection of Isc factor Keys:  /  Sets Isc value. TEST Confirms Isc value.

  • Page 23: Initial Settings

    MI 3110 EurotestIM Instrument operation 4.4.6 Initial settings In this menu the instrument settings, measurement parameters and limits can be set to initial (factory) values. Figure 4.11: Initial settings dialogue Keys:  /  Selects option [YES, NO]. TEST Restores default settings (if is selected).

  • Page 24: Measurements - A.c. Lv It Installations

    Measurements – a.c. LV IT installations MI 3110 EurotestIM 5 Measurements – a.c. LV IT installations 5.1 Voltage, frequency and phase sequence Voltage and frequency measurement is always active in the terminal voltage monitor. In the special VOLTAGE TRMS menu the measured voltage, frequency and information about detected three-phase connection can be stored.
  • Page 25 Measurements – a.c. LV IT installations MI 3110 EurotestIM Voltage measurement procedure Select the VOLTAGE TRMS function using the function selector keys. ❑ Connect test cable to the instrument. ❑ Connect test leads to the item to be tested (see Figure 5.2 and Figure 5.3).

  • Page 26: Line Impedance And Prospective Short-Circuit Current / Voltage Drop

    Measurements – a.c. LV IT installations MI 3110 EurotestIM 5.2 Line impedance and prospective short-circuit current / Voltage drop Line impedance is measured in loop comprising of mains voltage source and line wiring. Line impedance is covered by the requirements of the EN 61557-3 standard.

  • Page 27: Line Impedance And Prospective Short Circuit Current

    Measurements – a.c. LV IT installations MI 3110 EurotestIM 5.2.1 Line impedance and prospective short circuit current Circuits for measurement of line impedance Figure 5.7: Single phase IT line impedance measurement – connection of 3-wire test lead Line impedance measurement procedure...

  • Page 28: Voltage Drop

    Measurements – a.c. LV IT installations MI 3110 EurotestIM Note: High fluctuations of mains voltage can influence the measurement results (the ❑ noise sign is displayed in the message field). In this case it is recommended to repeat few measurements to check if the readings are stable.
  • Page 29 Measurements – a.c. LV IT installations MI 3110 EurotestIM Step 1 - Zref Step 2 - Voltage drop Figure 5.10: Examples of voltage drop measurement result Displayed results: ΔU ... Voltage drop, .... Prospective short-circuit current, Z ....Line impedance at measured point, ..

  • Page 30: First Fault Leakage Current (Isfl)

    Measurements – a.c. LV IT installations MI 3110 EurotestIM 5.3 First fault leakage current (ISFL) First fault leakage current measurement is performed in order to verify the maximum current that could leak into PE from observed line. This current flows through the insulation resistance and reactance (capacitance) between the other lines and PE when the first fault is applied as short circuit between observed line and PE.
  • Page 31 Measurements – a.c. LV IT installations MI 3110 EurotestIM First fault leakage current measuring procedure Select the ISFL function. ❑ Enable and set limit value (optional). ❑ Connect 3-wire test lead or mains measuring cable to the instrument and tested ❑...

  • Page 32: Testing Of Insulation Monitoring Devices (Imd)

    Measurements – a.c. LV IT installations MI 3110 EurotestIM 5.4 Testing of insulation monitoring devices (IMD) This function is intended for checking the alarm threshold of insulation monitor devices (IMD) by applying a changeable resistance between L1/PE and L2/PE terminals.
  • Page 33 Measurements – a.c. LV IT installations MI 3110 EurotestIM IMD test procedure (MANUAL R, MANUAL I) Select the function. ❑ Select MANUAL R or MANUAL I sub-function. ❑ Enable and set limit value. ❑ Connect 3-wire test lead to the instrument and tested item (see Figure 5.16).
  • Page 34 Measurements – a.c. LV IT installations MI 3110 EurotestIM When MANUAL I or AUTO I sub-function is selected, start value of insulation   − resistance is determined by start Figure 5.17: Examples of IMD test results Displayed results: R1 ... threshold indicative insulation resistance for L1, R2 ...

  • Page 35: Automatic Measurement Procedure

    Measurements – a.c. LV IT installations MI 3110 EurotestIM 5.5 Automatic measurement procedure The auto function is intended to perform a complete test of IT supply system: Voltage, ❑ Line impedance, ❑ First fault leakage current (ISFL), ❑ Testing of insulation resistance measurement (IMD).
  • Page 36 Measurements – a.c. LV IT installations MI 3110 EurotestIM Test circuit for automatic measurement Figure 5.19: Connection for automatic measurement Automatic measurement procedure Select AUTO SEQUENCE mode from main menu. ❑ Use TAB and  /  keys to enable and set limit values (optional).
  • Page 37 Measurements – a.c. LV IT installations MI 3110 EurotestIM Testing of insulation monitoring devices (IMD): R1.... Threshold indicative insulation resistance for phase 1, I1 ..... First fault leakage current at single fault between L1/PE, R2.... Threshold indicative insulation resistance for phase 2 I2 .....

  • Page 38: Pe Test Terminal

    Measurements – a.c. LV IT installations MI 3110 EurotestIM 5.6 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 39: Data Handling

    MI 3110 EurotestIM Data handling 6 Data handling 6.1 Memory organization Measurement results together with all relevant parameters can be stored in the instrument’s memory. After the measurement is completed, results can be stored to the flash memory of the instrument, together with the sub-results and function parameters.
  • Page 40 MI 3110 EurotestIM Data handling No. of measurements in selected location [No. of measurements in selected location and its sub- locations] Measurement field Type of stored measurement in the selected location. No. of selected test result / No. of all stored test results in...

  • Page 41: Storing Test Results

    MI 3110 EurotestIM Data handling 6.3 Storing test results After the completion of a test the results and parameters are ready for storing ( icon is displayed in the information field). By pressing the MEM key, the user can store the results.

  • Page 42: Recalling Test Results

    MI 3110 EurotestIM Data handling 6.4 Recalling test results Press the MEM key in a main function menu when there is no result available for storing or select MEMORY in the SETTINGS menu. Figure 6.3: Recall menu - installation Figure 6.4: Recall menu - measurements...

  • Page 43: Clearing Stored Data

    MI 3110 EurotestIM Data handling 6.5 Clearing stored data 6.5.1 Clearing complete memory content Select CLEAR ALL MEMORY in MEMORY menu. A warning will be displayed. Figure 6.6: Clear all memory Keys in clear all memory menu TEST Confirms clearing of complete memory content (YES must be selected with ...

  • Page 44: Clearing Individual Measurements

    MI 3110 EurotestIM Data handling Keys in dialog for confirmation to clear results in selected location: TEST Deletes all results in selected location. MEM / ESC Exits back to delete results menu without changes. Function selector Exits back to main menu without changes.

  • Page 45: Renaming Installation Structure Elements (Upload From Pc)

    MI 3110 EurotestIM Data handling 6.5.4 Renaming installation structure elements (upload from PC) Default installation structure elements are “Object”, “Block” and “Fuse”. In the PCSW package EUROLink PRO default names can be changed with customized names that corresponds the installation under test.
  • Page 46 MI 3110 EurotestIM Data handling The program EUROLink PRO is a PC software running on Windows XP, Windows Vista, Windows 7 and Windows 8. Read the file README_EuroLink.txt on CD for instructions about installing and running the program. Note: USB drivers should be installed on PC before using the USB interface. Refer to ❑...

  • Page 47: Upgrading The Instrument

    MI 3110 EurotestIM Upgrading the instrument 7 Upgrading the instrument The instrument can be upgraded from a PC via the RS232 communication port. This enables to keep the instrument up to date even if the standards or regulations change. The upgrade can be carried with a help of special upgrading software and the communication cable as shown on Figure 6.13.

  • Page 48: Maintenance

    MI 3110 EurotestIM Maintenance 8 Maintenance Unauthorized persons are not allowed to open the EurotestIM instrument. There are no user replaceable components inside the instrument, except the battery and fuses under rear cover. 8.1 Fuse replacement There are two fuses under back cover of the EurotestIM instrument.

  • Page 49: Technical Specifications

    MI 3110 EurotestIM Technical specifications 9 Technical specifications 9.1 Voltage, frequency, and phase rotation 9.1.1 Voltage Measuring range (V) Resolution (V) Accuracy 0  550 (2 % of reading + 2 digits) Result type ........True r.m.s. (trms) Nominal frequency range ....0 Hz, 14 Hz  500 Hz 9.1.2 Frequency...

  • Page 50: Line Impedance And Prospective Short-Circuit Current / Voltage Drop

    MI 3110 EurotestIM Technical specifications 9.2 Line impedance and prospective short-circuit current / Voltage drop Line impedance Measuring range according to EN 61557 is 0.25   99.9 . Accuracy Measuring range () Resolution () 0.00  9.99 0.01 (5 % of reading + 5 digits) 10.0 ...

  • Page 51: First Fault Leakage Current (Isfl)

    MI 3110 EurotestIM Technical specifications 9.3 First fault leakage current (ISFL) Measuring range (mA) Resolution (mA) Accuracy 0.0  19.9 ±(5 % of reading + 3 digits) Measuring resistance ......approx. 390  Nominal voltage ranges ......93 V  U ...
  • Page 52 MI 3110 EurotestIM Technical specifications Reference temperature range ... 10 C  30 C Reference humidity range ....40 %RH  70 %RH Operation conditions Working temperature range ....0 C  40 C Maximum relative humidity ....95 %RH (0 C  40 C), non-condensing Storage conditions Temperature range ......

  • Page 53: Appendix A - Fuse Table

    Appendix A – Fuse table MI 3110 EurotestIM 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...
  • Page 54 Appendix A – Fuse table MI 3110 EurotestIM 919.2 464.2 266.9 1217.2 821.7 663.3 319.1 1567.2 1133.1 964.9 836.5 447.9 2075.3 1429 1195.4 1018 585.4 Fuse type B Rated Disconnection time [s] current Min. prospective short- circuit current (A) Fuse type C...

  • Page 55: Fuse Table - Impedances (Uk)

    Appendix A – Fuse table MI 3110 EurotestIM 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 A.2 Fuse table - impedances (UK) Fuse type B Fuse type C...
  • Page 56 Appendix A – Fuse table MI 3110 EurotestIM Fuse type D Fuse type BS 88-3 (system C) Rated Disconnection time [s] Rated Disconnection time [s] current current Max. loop impedance () Max. loop impedance () 1,536 1,536 8,36 12,264 0,92...

  • Page 57: Appendix B - Accessories For Specific Measurements

    Appendix B – Accessories for specific measurements MI 3110 EurotestIM Appendix B - Accessories for specific measurements The table below presents recommended standard and optional accessories required for specific measurement. Please see attached list of standard accessories for your set or contact your distributor for further information.

  • Page 58: Appendix C - Commanders (A 1314, A 1401)

    If the commander is not used for a long period of time, remove all batteries from ❑ the battery compartment. Alkaline or rechargeable Ni-MH batteries (size AA) can be used. Metrel ❑ recommends only using rechargeable batteries with a capacity of 800 mAh or above.

  • Page 59: Operation Of Commanders

    Appendix C – Commanders MI 3110 EurotestIM Figure C.2: Front side plug commander (A 1314) Figure C.3: Back side Legend: 1 TEST Starts measurements. TEST Acts also as the PE touching electrode. 2 LED Left status RGB LED 3 LED...
  • Page 60 Appendix C – Commanders MI 3110 EurotestIM Left LED orange Voltage between any test terminals is higher than 50 V Both LEDs blink red Low battery Both LEDs red and switch off Battery voltage too low for operation of commander PE terminal test procedure Connect commander to the instrument.

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