METREL MI 3108 EurotestPV Instruction Manual
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METREL MI 3108 EurotestPV Instruction Manual

Combined photovoltaic tester and electrical installations safety tester
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EurotestPV
MI 3108

Instruction manual

Version 1.2, Code no. 20 751 987

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Summary of Contents for METREL MI 3108 EurotestPV

  • Page 1: Instruction Manual

    EurotestPV MI 3108 Instruction manual Version 1.2, Code no. 20 751 987...
  • Page 2 (European Union) concerning safety and electromagnetic compatibility regulations © 2013 METREL The trade names Metrel, Smartec, Eurotest, Autosequence are trademarks registered or pending in Europe and other countries. No part of this publication may be reproduced or utilized in any form or by any means...

  • Page 3: Table Of Contents

    MI 3108 EurotestPV Table of contents Table of contents Preface ........................6 Safety and operational considerations ..............7 Warnings and notes ..................7 Battery and charging ..................12 Standards applied ................... 14 Instrument description ..................16 Front panel ...................... 16 Connector panel ....................
  • Page 4 MI 3108 EurotestPV Table of contents 5.4.2 Trip-out time (RCDt) ..................48 5.4.3 Trip-out current (RCD I) ..................48 5.4.4 RCD Autotest ....................50 Fault loop impedance and prospective fault current ........53 Line impedance and prospective short-circuit current / Voltage drop ....55 5.6.1...
  • Page 5 MI 3108 EurotestPV Table of contents 11.2 Continuity ......................93 Ω 11.2.1 Resistance R LOW ..................93 11.2.2 Resistance CONTINUITY .................. 93 11.3 RCD testing ..................... 93 11.3.1 General data ...................... 93 11.3.2 Contact voltage RCD-Uc ................... 94 11.3.3 Trip-out time ...................... 94 11.3.4...

  • Page 6: Preface

    In order for operator to be familiar enough with performing measurements in general and their typical applications it is advisable to read Metrel handbook Guide for testing and verification of low voltage installations. The instrument is equipped with the entire necessary accessory for comfortable testing.

  • Page 7: 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 8 MI 3108 EurotestPV Safety and operational considerations Hazardous voltages exist inside the instrument. Disconnect all test leads, remove the power supply cable and switch off the instrument before removing battery compartment cover. Do not connect any voltage source on C1 and P/C2 inputs. They are intended only for connection of current clamps and sensors.
  • Page 9 MI 3108 EurotestPV Safety and operational considerations When an insulation resistance measurement has been performed on a capacitive object, automatic discharge may not be done immediately! The warning message and the actual voltage are displayed during discharge until voltage drops below 10 V.
  • Page 10 MI 3108 EurotestPV Safety and operational considerations Parameters set in one function are also kept for other RCD functions! The measurement of contact voltage does not normally trip an RCD. However, the trip limit of the RCD may be exceeded as a result of leakage current flowing to the PE protective conductor or a capacitive connection between L and PE conductors.
  • Page 11 MI 3108 EurotestPV Safety and operational considerations Environmental conditions (irradiance, temperature) must be stable during the measurements. For calculation of STC results measured Uoc / Isc values, irradiance, temperature (ambient or cell), and PV module parameters must be known. Refer to Appendix E for more information.

  • Page 12: Battery And Charging

    MI 3108 EurotestPV 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 13 (more than 6 months). In this case Metrel recommends to repeat the charge / discharge cycle at least 2-4 times. If no improvement is achieved after several charge / discharge cycles, then each battery cell should be checked (by comparing battery voltages, testing them in a cell charger, etc).

  • Page 14: Standards Applied

    MI 3108 EurotestPV 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 15 MI 3108 EurotestPV Safety and operational considerations Note about EN and IEC standards: Text of this manual contains references to European standards. All standards of EN 6XXXX (e.g. EN 61010) series are equivalent to IEC standards with the same number (e.g. IEC 61010) and differ only in amended parts required by European...

  • Page 16: Instrument Description

    MI 3108 EurotestPV 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 UP Modifies selected parameter. 3 DOWN 4 TEST Starts measurements. TEST Acts also as the PE touching electrode.

  • Page 17: Connector Panel

    MI 3108 EurotestPV Instrument description 3.2 Connector panel Figure 3.2: Connector panel (picture of MI 3108) Legend: Test connector Measuring inputs / outputs Charger socket USB connector Communication with PC USB (1.1) port. Protection cover Current clamp measuring input #1...

  • Page 18: Back Side

    MI 3108 EurotestPV 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: Fuse F1 FF 315 mA / 1000 V d.c.

  • Page 19: Carrying The Instrument

    MI 3108 EurotestPV: Instrument description Continuity RCD (EN 61557-6) I : 10mA, 30mA, 100mA, 300mA, 500mA, 1A R Low (EN 61557-4) Nominal voltage: 100V 264V / 15Hz 500Hz R: 0.12 1999 Contact voltage Test current: min. ±200mA at 2 U : 0.0V 100.0V...

  • Page 20: Secure Attachment Of The Strap

    MI 3108 EurotestPV: Instrument description The instrument can be used even when placed in soft carrying bag – test cable connected to the instrument through the front aperture. 3.4.1 Secure attachment of the strap You can choose between two methods: Figure 3.6: First method...

  • Page 21: Instrument Set And Accessories

    MI 3108 EurotestPV Instrument description 3.5 Instrument set and accessories 3.5.1 Standard set MI 3108 Instrument Soft carrying bag, 2 pcs PV Safety Probe Pyranometer PV Temperature probe AC/ DC current clamp Schuko-plug test cable Test lead, 3 x 1.5 m...

  • Page 22: Instrument Operation

    MI 3108 EurotestPV Instrument operation 4 Instrument operation 4.1 Display and sound 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. installation measuring mode.

  • Page 23: Results

    MI 3108 EurotestPV Instrument operation L and N are changed. Warning! High voltage is applied to the test terminals. Warning! Dangerous voltage on the PE terminal! Stop the activity immediately and eliminate the fault / connection problem before proceeding with any activity! Test leads resistance in Continuity measurement is not compensated.

  • Page 24: Backlight And Contrast Adjustments

    MI 3108 EurotestPV Instrument operation Figure 4.1: Examples of help screens 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 25 MI 3108 EurotestPV Instrument operation Keys in test parameter field: UP/DOWN Changes the selected parameter. Selects the next measuring parameter. Function selector Toggles between the main functions. Stores measured results / recalls stored results General rule regarding enabling parameters for evaluation of measurement / test result: No limit values, indication: _ _ _.

  • Page 26: Instruments Main Menu

    MI 3108 EurotestPV 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. <INSTALLATION> a.c. LV installation testing <POWER> Power & Energy testing <SOLAR> PV systems testing <SETTINGS>...

  • Page 27: Memory

    MI 3108 EurotestPV Instrument operation 4.4.1 Memory In this menu the stored data can be recalled or deleted. See chapter 8 Data handling for more information. Figure 4.5: Memory options Keys: UP / DOWN Selects option. TEST Enters selected option.

  • Page 28: Rcd Standard

    MI 3108 EurotestPV Instrument operation 4.4.4 RCD standard In this menu the used standard for RCD tests can be set. Figure 4.8: Selection of RCD test standard Keys: UP / DOWN Selects standard. TEST Confirms selected standard. Exits back to settings menu.

  • Page 29: Isc Factor

    MI 3108 EurotestPV Instrument operation Maximum test times related to selected test current for general (non-delayed) RCD Standard ½×I 2×I 5×I ∆N ∆N ∆N ∆N EN 61008 / EN 61009 300 ms 300 ms 150 ms 40 ms EN 60364-4-41...

  • Page 30: Communication

    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 31: Initial Settings

    Communications and A 1436 manual. Selection of barcode scanner type In this menu the barcode scanner type can be set. Options are: Serial barcode scanner Barcode scanner application on Android devices (check list of approved Metrel Android devices and applications) Keys: UP / DOWN Selects option.
  • Page 32 MI 3108 EurotestPV Instrument operation The default setup is listed below: Instrument setting Default value Language English Contrast As defined and stored by adjustment procedure Isc factor 1.00 RCD standards EN 61008 / EN 61009 Commander Enabled Scanner type RS232...

  • Page 33: Clamp Settings

    MI 3108 EurotestPV Instrument operation Note: Initial settings (reset of the instrument) can be recalled also if the TAB key is pressed while the instrument is switched on. 4.4.9 Clamp Settings In Clamp settings menu the C1 and C2/P measuring inputs can be configured.
  • Page 34 MI 3108 EurotestPV Instrument operation Synchronization (of time stamps) enables to later update the PV measured results with enviromental data that were measured simultaneously with the A 1378 PV Remote unit. Stored STC values are then corrected accordingly. Selecting this option will allow synchronization of data between the instrument and PV Remote unit.

  • Page 35: Solar Settings

    MI 3108 EurotestPV Instrument operation 4.4.11 Solar settings In Solar settings parameters of PV modules and settings for PV measurements can be set. Figure 4.17: Solar settings Keys: UP / DOWN Selects option. TEST Enters menu for changing parameters. Exits back to settings menu.
  • Page 36 MI 3108 EurotestPV Instrument operation Selection of PV module type and parameters Keys: UP / DOWN Selects appropriate option. TEST Enters menu for changing type or parameters. ESC, Function selector Exits back. Enters PV module type memory menu. Changing a PV module type / parameter...
  • Page 37 MI 3108 EurotestPV Instrument operation Figure 4.20: Delete options Keys: TEST Confirms clearing. In Delete all option YES must be selected. ESC / Function selector Exits back to main function menu without changes. PV measurements settings Parameters for PV measurements can be set in this menu.

  • Page 38: Measurements - A.c. Lv Installations

    MI 3108 EurotestPV Measurements – a.c. LV installations 5 Measurements – a.c. LV 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 39 MI 3108 EurotestPV Measurements – a.c. LV installations Figure 5.3: Connection of plug commander and 3-wire test lead in single-phase system Voltage measurement procedure Select the VOLTAGE TRMS function using the function selector keys. Connect test cable to the instrument.

  • Page 40: Insulation Resistance

    MI 3108 EurotestPV Measurements – a.c. LV installations 5.2 Insulation resistance The Insulation resistance measurement is performed in order to ensure safety against electric shock through insulation. Typical applications are: Insulation resistance between conductors of installation, Insulation resistance of non-conductive rooms (walls and floors), Insulation resistance of ground cables, Resistance of semi-conductive (antistatic) floors.
  • Page 41 MI 3108 EurotestPV Measurements – a.c. LV installations Insulation resistance measuring procedure Select the R ISO function using the function selector keys. Set the required test voltage. Enable and set limit value (optional). Disconnect tested installation from mains supply (and discharge insulation as required).

  • Page 42: R Lowω, 200 Ma Resistance Measurement

    MI 3108 EurotestPV Measurements – a.c. LV installations 5.3 Resistance of earth connection and equipotential bonding The resistance measurement is performed in order to ensure that the protective measures against electric shock through earth connections and bondings are effective. Two sub-functions are available: R LOWΩ...

  • Page 43: Continuous Resistance Measurement With Low Current

    MI 3108 EurotestPV Measurements – a.c. LV installations R LOWΩ measurement procedure Select continuity function using the function selector keys. LOWΩ. Set sub-function to Enable and set limit (optional). Connect test cable to the instrument. Compensate the test leads resistance (if necessary, see section 5.3.3).

  • Page 44: Compensation Of Test Leads Resistance

    MI 3108 EurotestPV Measurements – a.c. LV installations Figure 5.11: Tip commander and 3-wire test lead applications Continuous resistance measurement procedure Select continuity function using the function selector keys. Set sub-function CONTINUITY. Enable and set the limit (optional). Connect test cable to the instrument.
  • Page 45 MI 3108 EurotestPV Measurements – a.c. LV installations Circuits for compensating the resistance of test leads Figure 5.13: Shorted test leads Compensation of test leads resistance procedure R LOWΩ Select CONTINUITY function. Connect test cable to the instrument and short the test leads together (see figure 5.13).

  • Page 46: Testing Rcds

    MI 3108 EurotestPV Measurements – a.c. LV installations 5.4 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:...

  • Page 47: Contact Voltage (Rcd Uc)

    MI 3108 EurotestPV Measurements – a.c. LV installations 5.4.1 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. This voltage difference is called contact voltage and is present on all accessible conductive parts connected to the PE.

  • Page 48: Trip-Out Time (Rcdt)

    MI 3108 EurotestPV Measurements – a.c. LV installations Displayed results: Uc ..Contact voltage. Rl ..Fault loop resistance. 5.4.2 Trip-out time (RCDt) Trip-out time measurement verifies the sensitivity of the RCD at different residual currents. Trip-out time measurement procedure Select the function using the function selector keys.
  • Page 49 MI 3108 EurotestPV Measurements – a.c. LV installations Trip-out current measurement procedure Select the function using the function selector keys. Set sub-function RCD I. Set test parameters (if necessary). Connect test cable to the instrument. Connect test leads to the item to be tested (see figure 5.17).

  • Page 50: Rcd Autotest

    MI 3108 EurotestPV Measurements – a.c. LV installations Displayed results: I…….Trip-out current, Uci…Contact voltage at trip-out current I or end value in case the RCD didn’t trip, t…….Trip-out time. 5.4.4 RCD Autotest RCD autotest function is intended to perform a complete RCD test (trip-out time at different residual currents, trip-out current and contact voltage) in one set of automatic tests, guided by the instrument.
  • Page 51 MI 3108 EurotestPV Measurements – a.c. LV installations Result examples: Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Step 8 Figure 5.21: Individual steps in RCD autotest Bottom Figure 5.22: Two parts of result field in RCD autotest...
  • Page 52 MI 3108 EurotestPV Measurements – a.c. LV installations Displayed results: x1 ..Step 1 trip-out time ( , I∆N, 0º), x1 ..Step 2 trip-out time ( , I∆N, 180º), x5 ..Step 3 trip-out time ( , 5×I∆N, 0º), x5 ..

  • Page 53: Fault Loop Impedance And Prospective Fault Current

    MI 3108 EurotestPV Measurements – a.c. LV installations 5.5 Fault loop impedance and prospective fault current Fault loop is a loop comprised by mains source, line wiring and PE return path to the mains source. The instrument measures the impedance of the loop and calculates the short circuit current.
  • Page 54 MI 3108 EurotestPV Measurements – a.c. LV installations Fault loop impedance measurement procedure Select the Zloop Zs rcd sub-function using the function selector keys and keys. Select test parameters (optional). Connect test cable to the instrument. Connect test leads to the item to be tested (see figures 5.17 and 5.24).

  • Page 55: Line Impedance And Prospective Short-Circuit Current / Voltage Drop

    MI 3108 EurotestPV Measurements – a.c. LV installations 5.6 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 56: Line Impedance And Prospective Short Circuit Current

    MI 3108 EurotestPV Measurements – a.c. LV installations 5.6.1 Line impedance and prospective short circuit current Circuits for measurement of line impedance Figure 5.28: Phase-neutral or phase-phase line impedance measurement – connection of plug commander and 3-wire test lead Line impedance measurement procedure...

  • Page 57: Voltage Drop

    MI 3108 EurotestPV Measurements – a.c. LV installations Input voltage range (L-N or L1-L2) (93 V ≤ U < 134 V) 110 V (185 V ≤ U ≤ 266 V) 230 V (321 V < U ≤ 485 V) 400 V...
  • Page 58 MI 3108 EurotestPV Measurements – a.c. LV installations Step 1 - Zref Step 2 - Voltage drop Figure 5.31: Examples of voltage drop measurement result Displayed results: ΔU ... Voltage drop, .... Prospective short-circuit current, Z ....Line impedance at measured point, Zref ..

  • Page 59: Earth Resistance

    MI 3108 EurotestPV Measurements – a.c. LV installations 5.7 Earth resistance Earth resistance is one of the most important parameters for protection against electric shock. Main earthing arrangements, lightning systems, local earthings, etc can be verified with the earthing resistance test. The measurement conforms to the EN 61557- 5 standard.
  • Page 60 MI 3108 EurotestPV Measurements – a.c. LV installations Figure 5.34: Resistance to earth, measurement of a lighting protection system Earth resistance measurements, common measurement procedure Select EARTH function using the function selector keys. Enable and set limit value (optional). Connect test leads to the instrument.

  • Page 61: Pe Test Terminal

    MI 3108 EurotestPV Measurements – a.c. LV installations 5.8 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 62 MI 3108 EurotestPV Measurements – a.c. LV installations PE terminal test procedure Connect test cable to the instrument. Connect test leads to the item to be tested (see figures 5.36 and 5.37). Touch PE test probe (the TEST key) for at least one second.

  • Page 63: Solar Measurements - Pv Systems

    MI 3108 EurotestPV Solar measurements – PV systems 6 Solar measurements - PV systems The following measurements for verification and troubleshooting of PV installations can be performed with the instrument: Insulation resistance on PV systems PV inverter test PV panel test...
  • Page 64 MI 3108 EurotestPV Solar measurements – PV systems Test circuits for insulation resistance on PV systems Figure 6.2: Connections for insulation resistance measurement on PV systems Insulation resistance measuring procedure Select the RISO - sub-function using the function selector keys and keys.

  • Page 65: Pv Inverter Test

    MI 3108 EurotestPV Solar measurements – PV systems 6.2 PV inverter test The test is intended to check proper operation of the PV inverter. Following functions are supported: Measuring of DC values at inverter’s input and AC values at inverter’s output.
  • Page 66 MI 3108 EurotestPV Solar measurements – PV systems Figure 6.6: PV inverter test - AC side Figure 6.7: PV inverter test - AC and DC sides PV inverter test procedure Select INVERTER sub-function using the function selector keys and keys.

  • Page 67: Pv Panel Test

    MI 3108 EurotestPV Solar measurements – PV systems Displayed results for PV inverter test: DC column: U....measured voltage at the input of the inverter I ....measured current at the input of the inverter P ....measured power at the input of the inverter AC column: U....
  • Page 68 MI 3108 EurotestPV Solar measurements – PV systems Connections for PV panel Figure 6.10: PV panel test PV panel test procedure Select PANEL sub-function using the function selector keys. Connect PV safety probe, current clamp(s) and sensors to the instrument.

  • Page 69: Measuring Of Environmental Parameters

    MI 3108 EurotestPV Solar measurements – PV systems Pmeas… . measured output power of the panel at momentary conditions Ptheo…. .. calculated theoretical output power of the panel at momentary conditions η2…..calculated efficiency of the panel at momentary conditions...
  • Page 70 MI 3108 EurotestPV Solar measurements – PV systems Connections for measuring of environmental parameters Figure 6.13: Measurement of environmental parameters Procedure for measuring of environmental parameters Select ENV. function and MEAS sub-function using the function selector keys keys. Connect environmental probes to the instrument (see figure 6.13).

  • Page 71: Operation With A1378 Pv Remote Unit

    MI 3108 EurotestPV Solar measurements – PV systems Keys: TEST Enters menu for manual setting of environmental parameters. Enters menu for changing selected parameter. Confirms set value of parameter. Selects environmental parameter. Selects value of parameter. Function Exits environmental menu and select PV measurement.
  • Page 72 MI 3108 EurotestPV Solar measurements – PV systems Connection for Uoc / Isc test Figure 6.17: Uoc / Isc test Uoc / Isc test procedure Select Uoc / Isc sub-function using the function selector keys and keys. Connect PV safety probe and sensors (optional) to the instrument.

  • Page 73: I / V Curve Measurement

    MI 3108 EurotestPV Solar measurements – PV systems Notes: Before starting the PV measurements settings of PV module type and PV test parameters should be checked. For calculation of STC results correct PV module type, PV test parameters, Irr and T (ambient or cell) values must be measured or be entered manually before the test.
  • Page 74 MI 3108 EurotestPV Solar measurements – PV systems I / V curve test procedure Select I / V sub-function using the function selector keys and keys. Check or set PV module and PV testing parameters and limits (optional). Connect PV safety probe to the instrument.

  • Page 75: Measurements - Power & Energy

    MI 3108 EurotestPV Measurements - Power & energy 7 Measurements - Power & Energy 1- phase power measurements and tests (sub-functions) can be performed with the EurotestPV instrument. Main features are: Measurement of standard power parameters, Harmonic analysis of voltage and current, Displaying of voltage and current waveforms, Energy counting.

  • Page 76: Harmonics

    MI 3108 EurotestPV Measurements - Power & energy Power test procedure Select POWER sub-function using the function selector keys and keys. Connect the voltage test leads and current clamp to the instrument. Connect the voltage test leads and current clamp to the item to be tested (see figure 7.2).

  • Page 77: Scope

    MI 3108 EurotestPV Measurements - Power & energy Connection for the Harmonics measurement (See figure 7.2) Harmonics measurement procedure Select HARMONICS sub-function using the function selector keys and keys. Connect voltage test leads and current clamp to the instrument. Connect the voltage test leads and current clamp to the item to be tested (see figure 7.2).

  • Page 78: Current

    MI 3108 EurotestPV Measurements - Power & energy Connection for the Scope measurement (See figure 7.2) Scope measurement procedure Select SCOPE sub-function using the function selector keys and Up/Down keys. Connect voltage test leads and current clamp to the instrument.

  • Page 79: Energy

    MI 3108 EurotestPV Measurements - Power & energy Connection for current measurement Figure 7.9: Leakage and load current measurements Current measurement procedure Select CURRENT function using the function selector keys. Select input channel (optional). Connect current clamp(s) to the instrument.
  • Page 80 MI 3108 EurotestPV Measurements - Power & energy Settings and parameters for the Energy measurement Maximal expected TRMS current during measurement [ I /10, range range /100] range Maximal expected TRMS voltage during measurement [ 260 V, 500 V] Connection for the Energy measurements (See figure 7.2)

  • Page 81: Data Handling

    MI 3108 EurotestPV Data handling 8 Data handling 8.1 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 82 MI 3108 EurotestPV Data handling Data structure field Memory operation menu Data structure field level: OBJECT: Default location name (object and its successive number). 004: No. of selected element. level: BLOCK: Default location name (block and its successive number). 001: No. of selected element.

  • Page 83: Storing Test Results

    MI 3108 EurotestPV Data handling 8.3 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 84: Recalling Test Results

    MI 3108 EurotestPV Data handling 8.4 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 8.3: Recall menu - installation Figure 8.4: Recall menu - measurements...

  • Page 85: Clearing Stored Data

    MI 3108 EurotestPV Data handling 8.5 Clearing stored data 8.5.1 Clearing complete memory content Select CLEAR ALL MEMORY in MEMORY menu. A warning will be displayed. Figure 8.6: Clear all memory Keys in clear all memory menu TEST Confirms clearing of complete memory content (YES must be selected with keys).

  • Page 86: Clearing Individual Measurements

    MI 3108 EurotestPV 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 function menu without changes.

  • Page 87: Renaming Installation Structure Elements (Upload From Pc)

    A new location name (scanned from a barcode label or a RFID tag) will be accepted by the instrument. A successful receive of barcode or RFID tag is confirmed by two short confirmation beeps. Note: Use only barcode readers and RFID readers delivered by Metrel or authorized distributor.

  • Page 88: Communication

    MI 3108 EurotestPV Data handling 8.6 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.

  • Page 89: 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 Bluetooth link via Android device’s Bluetooth configuration tool.

  • Page 90: Upgrading The Instrument

    MI 3108 EurotestPV Upgrading the instrument 9 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 8.14.

  • Page 91: Maintenance

    MI 3108 EurotestPV Maintenance Maintenance Unauthorized persons are not allowed to open the EurotestPV instrument. There are no user replaceable components inside the instrument, except the battery and fuse under rear cover. 10.1 Fuse replacement There is a fuse under back cover of the EurotestPV instrument.

  • Page 92: Technical Specifications

    MI 3108 EurotestPV Technical specifications Technical specifications 11.1 Insulation resistance, Insulation resistance of PV systems Insulation resistance (nominal voltages 50 V , 100 V and 250 V Measuring range according to EN 61557 is 0.15 MΩ ÷ 199.9 MΩ. Accuracy Measuring range (MΩ)

  • Page 93: Continuity

    MI 3108 EurotestPV Technical specifications 11.2 Continuity 11.2.1 Resistance R LOWΩ Measuring range according to EN 61557 is 0.16 Ω ÷ 1999 Ω. Accuracy Measuring range R (Ω) Resolution (Ω) 0.00 ÷ 19.99 ±(3 % of reading + 3 digits) 0.01...

  • Page 94: Contact Voltage Rcd-Uc

    MI 3108 EurotestPV Technical specifications I∆N × 1/2 I∆N × 1 I∆N × 2 I∆N × 5 RCD I∆ I∆N (mA) AC A,F B, B+ AC B,B+ AC B,B+ AC A,F B,B+ AC A,F B,B+ 100 100 10.5 15 212 300...

  • Page 95: Trip-Out Current

    MI 3108 EurotestPV Technical specifications 11.3.4 Trip-out current Trip-out current Complete measurement range corresponds to EN 61557 requirements. Accuracy Measuring range I Resolution I ∆ ∆ ÷ 1.1×I ±0.1×I 0.2×I (AC type) 0.05×I ∆N ∆N ∆N ∆N ÷ 1.5×I ≥30 mA) ±0.1×I...

  • Page 96: Rcd Selected

    MI 3108 EurotestPV Technical specifications 11.4.2 RCD selected Fault loop impedance Measuring range according to EN 61557 is 0.46 Ω ÷ 9.99 kΩ. Accuracy Measuring range (Ω) Resolution (Ω) 0.00 ÷ 9.99 0.01 ±(5 % of reading + 10 digits) 10.0 ÷...

  • Page 97: Resistance To Earth

    MI 3108 EurotestPV Technical specifications Voltage drop (calculated value) Measuring range (%) Resolution (%) Accuracy 0.0 ÷ 99.9 Consider accuracy of line impedance measurement(s)* measuring range……………………… 0.00 Ω ÷ 20.0 Ω *See chapter 5.6.2 Voltage drop for more information about calculation of voltage drop result 11.6 Resistance to earth...

  • Page 98: Voltage

    MI 3108 EurotestPV Technical specifications 11.7.2 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 11.7.3 Frequency...

  • Page 99: Power Tests

    MI 3108 EurotestPV Technical specifications Range = 200 A Measuring range (A) Resolution (A) Accuracy* 0.00 ÷ 0.09 0.01 indicative 0.10 ÷ 1.99 ±(5 % of reading + 3 digits) 0.01 2.00 ÷ 19.99 ±(3 % of reading + 3 digits) 0.01...

  • Page 100: Pv Tests

    MI 3108 EurotestPV Technical specifications Note: Error of external voltage and current transducers is not considered in this specification. Power (P, S, Q) Measuring range is from 0.00 W (VA, Var) to 99.9 kW (kVA, kVar) Power factor Measuring range is from – 1.00 to 1.00 Voltage harmonics Measuring range is from 0.1 V to 500 V...

  • Page 101: I-V Curve

    MI 3108 EurotestPV Technical specifications 2.00 k ÷ 19.99 k ±2.5 % of reading 20.0 k ÷ 199.9 k ±2.5 % of reading AC Voltage Measuring range (V) Resolution (V) Accuracy 0.0 ÷ 99.9 ± (1.5 % of reading + 3 digits) 100.0 ÷...

  • Page 102: Uoc - Isc

    MI 3108 EurotestPV Technical specifications 11.10.4 Uoc - Isc DC Voltage Measuring range (V) Resolution (V) Accuracy 0.0 ÷ 15.0 indicative 15.1 ÷ 199.9 ± (2 % of reading + 2 digits) 200 ÷ 999 ±2 % of reading DC Current...

  • Page 103: Insulation Resistance Of Pv Systems

    MI 3108 EurotestPV Technical specifications Designed for continuous outdoor use. Note: Given accuracy is valid for stable irradiance and temperature during the test. 11.10.6 Insulation Resistance of PV systems Refer to chapter 11.1. Insulation Resistance, Insulation Resistance of PV systems.
  • Page 104 MI 3108 EurotestPV Technical specifications Other measurements: ...... ca 1800 measurements The error in operating conditions could be at most the error for reference conditions (specified in the manual for each function) +1 % of measured value + 1 digit, unless...

  • Page 105: Appendix A - Fuse Table

    MI 3108 EurotestPV Appendix A – Fuse table 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 106 MI 3108 EurotestPV Appendix A – Fuse table 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 107 MI 3108 EurotestPV Appendix A – Fuse table Fuse type D Rated Disconnection time [s] current Min. prospective short- circuit current (A) 10.8 21.6 32.4 70.2 86.4 172.8...

  • Page 108: Appendix B - Accessories For Specific Measurements

    MI 3108 EurotestPV Appendix B – Accessories for specific measurements 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 109 MI 3108 EurotestPV Appendix B – Accessories for specific measurements PV MC3 adapters PV Remote unit (A 1378) PV fused test lead (A 1385) AC/DC current clamp (A 1391) AC current clamp (A 1018) AC current clamp (A 1019) Insulation resistance PV...

  • Page 110: Appendix C - Country Notes

    MI 3108 EurotestPV Appendix C – Country notes Appendix C – Country notes This appendix C 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 111 MI 3108 EurotestPV Appendix C – Country notes Contact voltage Uc Rated I ∆N RCD type proportional to 1.05×I ∆N 2×1.05×I ∆N 1.4×1.05×I ∆N ≥ 30 mA 2×1.4×1.05×I ∆N 2×1.05×I ∆N < 30 mA 2×2×1.05×I ∆N B, B+ 2×1.05×I ∆N B, B+ 2×2×1.05×I...

  • Page 112: Appendix D - 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 113: Operation Of Commanders

    MI 3108 EurotestPV Appendix D – Commanders Figure D.2: Front side plug commander (A 1314) Figure D.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 114 MI 3108 EurotestPV Appendix D – Commanders 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.

  • Page 115: Appendix E - Pv Measurements - Calculated Values

    MI 3108 EurotestPV Appendix E – PV measurements – calculated values Appendix E – PV measurements - calculated values Calculation with known U, I (DC, AC), configuration of modules into a string (M - modules in serial, N - modules in parallel), environment parameters (Irr, T) and data supplied by the panels manufacturer (U, I (AC, DC), phase, Istc, γ, Pnom,...
  • Page 116 MI 3108 EurotestPV Appendix E – PV measurements – calculated values Depending on temperature criterion for PASS is: • If Tamb < 25 °C or Tcell < 40 °C => η >0.85 • If Tamb > 25 °C or Tcell > 40 °C => η...
  • Page 117 MI 3108 EurotestPV Appendix E – PV measurements – calculated values is measured temperature, Rs is serial resistance of panel, M is number of modules in serial and N is number of modules in parallel. Calculated values of current and voltage at standard test condition...

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