METREL Eutrotest PB Instruction Manual Download Page 1

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EurotestPV

MI 3108

Instruction manual

Version 1.7, Code no. 20 752 095

Summary of Contents for Eutrotest PB

Page 1: ...EurotestPV MI 3108 Instruction manual Version 1 7 Code no 20 752 095...

Page 2: ...ent meets the requirements of the EU European Union concerning safety and electromagnetic compatibility regulations 2013 2017 METREL The trade names Metrel Smartec Eurotest Autosequence are trademarks...

Page 3: ...ngs 22 4 1 6 Help screens 22 4 1 7 Backlight and contrast adjustments 23 4 2 Function selection 23 4 3 Instruments main menu 25 4 4 Settings 25 4 4 1 Memory 26 4 4 2 Language 26 4 4 3 Date and time 26...

Page 4: ...rmonics 85 7 3 Scope 86 7 4 Current 87 7 5 Energy 89 8 Data handling 90 8 1 Memory organization 90 8 2 Data structure 90 8 3 Storing test results 92 8 4 Recalling test results 93 8 5 Clearing stored d...

Page 5: ...7 2 Voltage 108 11 7 3 Frequency 109 11 7 4 Online terminal voltage monitor 109 11 8 TRMS Clamp current 109 11 9 Power tests 110 11 10 PV tests 112 11 10 1 Accuracy of STC data 112 11 10 2 Panel Inve...

Page 6: ...rgy measurements Measurements and tests on PV systems Voltages currents and power in PV systems Inverter and PV panels Calculation of efficiencies and STC values in PV systems Uoc Isc measurements Env...

Page 7: ...ing with hazardous voltages If the 315 mA fuse blows follow the instructions in this manual in order to replace it Use only fuses that are specified Do not disassemble or repair the high breaking curr...

Page 8: ...s the instrument from the PV installation in case of a failure in the instrument PV test lead A1385 has integrated fuses that safely disconnects instrument from the PV installation in case of a failur...

Page 9: ...IL indication is enabled when limit is set Apply appropriate limit value for evaluation of measurement results In the case that only two of the three wires are connected to the electrical installation...

Page 10: ...nce using trip lock function does not normally trip an RCD However the trip limit may be exceeded if a leakage current flows to the PE protective conductor or if there is a capacitive connection betwe...

Page 11: ...al considerations 11 For calculation of STC results measured Uoc Isc values irradiance cell temperature and PV module parameters must be known Refer to Appendix E for more information Always perform z...

Page 12: ...attery lifetime Figure 2 2 Power supply socket polarity Symbols Indication of battery charging Figure 2 3 Charging indication Warnings related to safety When connected to an installation the instrumen...

Page 13: ...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 comparin...

Page 14: ...nctionality BS EN 61557 Electrical safety in low voltage distribution systems up to 1000 VAC and 1500 VAC Equipment for testing measuring or monitoring of protective measures Part 1 General requiremen...

Page 15: ...N 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 d...

Page 16: ...selected function 7 Backlight Contrast Changes backlight level and contrast 8 ON OFF Switches the instrument power on or off The instrument automatically turns off 15 minutes after the last key was pr...

Page 17: ...input 2 Measuring input for external probes 7 PS 2 connector Communication with PC serial port Connection to optional measuring adapters Connection to barcode RFID reader Connection to Bluetooth dongl...

Page 18: ...compartment cover 2 Back panel information label 3 Fixing screws for battery fuse compartment cover Figure 3 4 Battery and fuse compartment Legend 1 Fuse F1 FF 315 mA 1000 V d c Breaking capacity 50 k...

Page 19: ...4 Nominal voltage 100V 264V 15Hz 500Hz impedance L PE 17 Voltage frequency U 0V 440V f 15Hz 500Hz Phase rotation EN 61557 7 Nominal voltage 100V 440V 1 00 Results 1 2 3 or 2 1 3 5Hz 5 Hz RCD EN 61557...

Page 20: ...clamp Plug test cable Test lead 3 x 1 5 m Test probe 4 pcs Crocodile clip 4 pcs Set of carrying straps PV MC 4 adapter male PV MC 4 adapter female PV MC 3 adapter male PV MC 3 adapter female RS232 PS...

Page 21: ...cates the charge condition of battery and connection of external charger Battery capacity indication Low battery Battery is too weak to guarantee correct result Replace or recharge the battery cells C...

Page 22: ...nt for declared accuracy Results may be impaired Check in Current Clamp Settings if sensitivity of current clamp can be increased Measured signal is out of range clipped Results are impaired Fuse F1 i...

Page 23: ...oggles backlight intensity level Keep pressed for 1 s Locks high intensity backlight level until power is turned off or the key is pressed again Keep pressed for 2 s Bargraph for LCD contrast adjustme...

Page 24: ...tored results ESC Exits back to main menu Keys in test parameter field UP DOWN Changes the selected parameter TAB Selects the next measuring parameter Function selector Toggles between the main functi...

Page 25: ...option 4 4 Settings Different instrument options can be set in the SETTINGS menu Options are Recalling and clearing stored results Selection of language Setting the date and time Selection of referenc...

Page 26: ...ESC Exits back to settings menu Function selector Exits back to main menu without changes 4 4 2 Language In this menu the language can be set Figure 4 6 Language selection Keys UP DOWN Selects langua...

Page 27: ...to settings menu Function selector Exits back to main menu without changes Maximum RCD disconnection times differ in various standards The trip out times defined in individual standards are listed bel...

Page 28: ...s 300 ms 150 ms 40 ms EN 60364 4 41 1000 ms 1000 ms 150 ms 40 ms BS 7671 2000 ms 300 ms 150 ms 40 ms AS NZS 3017 I II III 1000 ms 1000 ms 150 ms 40 ms Maximum test times related to selected test curre...

Page 29: ...mander disabled option is intended to disable the commander s remote keys In the case of high EM interfering noise the operation of the commander can be irregular 4 4 7 Communication In this menu the...

Page 30: ...tings menu Function selector Exits back to main menu without changes 4 4 7 2 Searching for the Metrel Powermeter with Bluetooth connection and pairing with EurotestPV instrument In the BLUETOOTH DEVIC...

Page 31: ...d for the first time During initialization the instrument sets the dongle parameters and name in order to communicate properly Figure 4 15 Menu for initialization of Bluetooth dongle s INIT BT DONGLES...

Page 32: ...roperly EXTERNAL BT DONGLE SEARCHING OK 6 The successfully initialized Bluetooth dongle A 1436 is now ready to be connected to a Metrel Powermeter Notes The Bluetooth dongle A 1436 should always be in...

Page 33: ...CLAMP 1 CLAMP 2 A1391 40A A1391 40A Solar settings See chapter 4 4 10 Solar Settings Test mode Function Parameters limit value Sub function INSTALLATION EARTH RE No limit R ISO L N L E N E L L No lim...

Page 34: ...range of current clamp 20 A 200 A 40 A 300 A Selection of measuring parameters Keys UP DOWN Selects appropriate option TEST Enables changing data of selected parameter MEM Saves settings ESC Exits bac...

Page 35: ...ntal 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 instrum...

Page 36: ...The database can also be created on the PC or mobile device and then sent to the instrument PCSW EurolinkPRO and some Android applications support this feature Figure 4 21 PV module settings menu Para...

Page 37: ...s menu for storing changed data of selected PV module type DELETE Deletes selected PV module type DELETE ALL Deletes all PV module types Keys UP DOWN Selects option TEST Enters selected menu Function...

Page 38: ...olar irradiance for calculation 500 1000 W m2 T sensor Temperature for calculation Tamb Tcell Mod Ser Number of modules in serial 1 30 Mod Par Number of modules in parallel 1 10 Correct T Correction o...

Page 39: ...MI 3108 EurotestPV Instrument operation 39 Changing data of selected parameter Keys UP DOWN Sets parameter TEST Confirms set data ESC Function selectors Exits back...

Page 40: ...age fields if the compensation was carried out successfully Circuits for compensating the resistance of test leads Figure 5 1 Examples of connections for compensation Compensation of test leads resist...

Page 41: ...ree phase connection can be stored Measurements are based on the BS EN 61557 7 standard See chapter 4 2 Function selection for instructions on key functionality Figure 5 4 Voltage in single phase syst...

Page 42: ...tion of VOLTAGE TRMS function Figure 5 7 Examples of voltage measurement in three phase system Displayed results for single phase system Uln Voltage between phase and neutral conductors Ulpe Voltage b...

Page 43: ...vailable ISO L E ISO L N ISO L L ISO N E The insulation resistance tests are carried out in the same way regardless which sub function is selected However it is important to select the appropriate sub...

Page 44: ...nstallation from mains supply and discharge insulation as required Connect test cable to the instrument and to the item to be tested see figure 5 9 Press the TEST key to perform the measurement double...

Page 45: ...nsidered in verification documents Electrical Installation Certificate Periodic Inspection Report etc The r1 rN r2 R1 R2 and R2 continuity tests are carried out between L and PE terminals in the same...

Page 46: ...wiring in ring circuits R2 R1 R2 Figure 5 13 Connections for testing the R2 and R1 R2 sections of the wiring in final circuits Continuity measurement procedure Select Continuity function using the fu...

Page 47: ...14 Example of Continuity result Displayed result R Continuity result R Result at positive polarity R Result at negative test polarity 5 5 Ring Continuity With Easy Switch A1214 the resistance measurem...

Page 48: ...ty measurement Measurement Subfunction r1 r2 rN R1 R2 R1 RN The Ring Continuity measurement is performed with automatic polarity reversal of the test voltage according to BS EN 61557 4 Test circuits f...

Page 49: ...MI 3108 EurotestPV Measurements a c LV installations 49 Figure 5 18 Step 2 measurement of resistances R1 R2 R1 RN...

Page 50: ...nsated Figure 5 19 Examples of Ring Continuity test Step 1 Displayed results r1 Ring resistance of line conductors committed and measured rN Ring resistance of neutral conductors committed and measure...

Page 51: ...be cleared with the TAB key Repeat the measurement on all sockets of the final ring circuit The R1 RN and R1 R2 results can be cleared with the TAB key After the measurements are finished store the r...

Page 52: ...Dt RCD I AUTO Uc I N Rated RCD residual current sensitivity I N 10 mA 30 mA 100 mA 300 mA 500 mA 1000 mA type RCD type AC A F B B starting polarity selective S or general characteristic MUL Multiplica...

Page 53: ...st cable to the instrument Connect test leads to the item to be tested see figure 5 21 Press the TEST key to perform the measurement Store the result by pressing the MEM key optional The contact volta...

Page 54: ...tested see figure 5 21 Press the TEST key to perform the measurement Store the result by pressing the MEM key optional Figure 5 24 Example of trip out time measurement results Displayed results t Trip...

Page 55: ...st cable to the instrument Connect test leads to the item to be tested see figure 5 21 Press the TEST key to perform the measurement Store the result by pressing the MEM key optional Trip out After th...

Page 56: ...s if necessary Connect test cable to the instrument Connect test leads to the item to be tested see figure 5 23 Press the TEST key to perform the test Start of test Test with I N 0 step 1 RCD should t...

Page 57: ...Measurements a c LV installations 57 Result examples Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Step 8 Figure 5 26 Individual steps in RCD autotest Top Bottom Figure 5 27 Two parts of result fie...

Page 58: ...rip out current 180 Uc Contact voltage for rated I N Notes The autotest sequence is immediately stopped if any incorrect condition is detected e g excessive Uc or trip out time out of bounds Auto test...

Page 59: ...e chapter 4 2 Function selection for instructions on key functionality Figure 5 28 Fault loop impedance Test parameters for fault loop impedance measurement Test Selection of fault loop impedance sub...

Page 60: ...ective fault current Lim High limit fault loop impedance value Prospective fault current IPFC is calculated from measured impedance as follows factor scaling Z U I PE L N PFC _ where Un Nominal UL PE...

Page 61: ...limit values are described in the standard EN 60364 5 52 Sub functions Z LINE Line impedance measurement according to BS EN 61557 3 U Voltage drop measurement See chapter 4 2 Function selection for in...

Page 62: ...e instrument Connect test leads to the item to be tested see figure 5 33 Press the TEST key to perform the measurement Store the result by pressing the MEM key optional Figure 5 34 Examples of line im...

Page 63: ...Phase neutral or phase phase voltage drop measurement connection of plug cable and 3 wire test lead Voltage drop measurement procedure Step 1 Measuring the impedance Zref at origin Select the U sub fu...

Page 64: ...ge range L N or L1 L2 110 V 93 V UL PE 134 V 230 V 185 V UL PE 266 V 400 V 321 V UL N 485 V Notes If the reference impedance is not set the value of ZREF is considered as 0 00 The ZREF is cleared set...

Page 65: ...earthings etc can be verified with the earthing resistance test The measurement conforms to the BS EN 61557 5 standard See chapter 4 2 Function selection for instructions on key functionality Figure 5...

Page 66: ...Store the result by pressing the MEM key optional Figure 5 40 Example of earth resistance measurement result Displayed results for earth resistance measurement R Earth resistance Rp Resistance of S p...

Page 67: ...arthed An often reason for this fault is incorrect wiring see examples below When touching the TEST key in all functions that requires mains supply the user automatically performs this test Examples f...

Page 68: ...ment buzzer is activated and further measurements are disabled in Zloop and RCD functions Warning If dangerous voltage is detected on the tested PE terminal immediately stop all measurements find and...

Page 69: ...against electric shock through insulation between live parts on PV installations and earth The followed by a test between panel string array positive and earth measurement is carried out according to...

Page 70: ...nt double click for continuous measurement and later press to stop the measurement After the measurement is finished wait until tested item is fully discharged Store the result by pressing the MEM key...

Page 71: ...of a Metrel Powermeter and the EurotestPV instrument During the measurement the Power meter and EurotestPV instrument must be connected via cable or Bluetooth link At the end of the measurement the re...

Page 72: ...MI 3108 EurotestPV Solar measurements PV systems 72 Connections for PV inverter test Figure 6 6 PV inverter test DC side Figure 6 7 PV inverter test AC side Figure 6 8 PV inverter test AC and DC sides...

Page 73: ...INVERTER sub function using the function selector keys and keys Connect PV safety probe and current clamp to the instrument see figures 6 6 and 6 7 or Connect PV test lead A 1385 and current clamps t...

Page 74: ...voltage test leads to L1 L2 L3 and N at the output side of the inverter see figures 6 9 and 6 10 Connect accessories to the PV system see figures 6 9 and 6 10 Check input voltages on the instrument a...

Page 75: ...e set to DC and AC separately For the INVERTER AC DC test fused test lead A 1385 must be used For more information about measuring and setup of the Metrel Powermeter refer to Metrel Powermeter s instr...

Page 76: ...sult by pressing the MEM key optional Figure 6 16 Examples of PV measurement results Displayed results are MEAS column U measured output voltage of the panel I measured output current of the panel P m...

Page 77: ...n I V menu The Uoc Isc Irr and T measurements should be carried out immediately before the PANEL test Environmental conditions must be stable during the tests For best results PV remote unit A 1378 sh...

Page 78: ...Example of measured results Displayed results for environmental parameters Irr solar irradiance Tamb or Tcell temperature of ambient or PV cells Note If the Irradiance result is lower than the set min...

Page 79: ...ters are cleared when the SOLAR test mode is exited 6 2 1 Operation with A1378 PV Remote Unit See PV Remote Unit User Manual 6 5 Uoc Isc test The Uoc Isc test is intended to check if protection device...

Page 80: ...c measured open voltage of the panel Isc measured short circuit current of the panel STC column Uoc calculated open voltage at STC Isc calculated short circuit current at STC Notes Before starting the...

Page 81: ...of a part of the PV panel string dirt shadow etc can be found Figure 6 24 I V curve starting screens The data to be measured is divided into three screens See chapter 4 2 Function selection for instr...

Page 82: ...PV module type PV test parameters Irr and Tcell values must be measured or be entered manually before the test The Irr and T results in ENV menu are considered Refer to Appendix E for further informa...

Page 83: ...test results for more information Figure 6 27 Example of cell temperature before test result screen Displayed results T15 cell temperature 15 minutes before the PV test T10 cell temperature 10 minutes...

Page 84: ...armonic analysis of voltage and current Displaying of voltage and current waveforms Energy counting 7 1 Power The Power function is intended to measure the standard power parameters P Q S THDU and PF...

Page 85: ...parent power Q reactive power capacitive or inductive PF power factor capacitive or inductive THDU voltage total harmonic distortion Notes Consider polarity and setup of current clamps see chapter 4 4...

Page 86: ...ent results Displayed results for the Harmonics measurements Uh TRMS voltage of selected harmonic Ih TRMS current of selected harmonic THDU voltage total harmonic distortion THDI voltage total harmoni...

Page 87: ...e the result by pressing the MEM key optional Figure 7 7 Example of Scope measurement results TRMS values of voltage and current are displayed Notes The parameter input can be changed and results can...

Page 88: ...optional Connect current clamp s to the instrument Connect the clamp s to the item to be tested see figure 7 9 Press the TEST key to start the continuous measurement Press the TEST key again to stop t...

Page 89: ...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 Press the TEST key to start the measurement Press the TEST key again...

Page 90: ...tructure level Circuit Earth Electrode Bonding conductors 3rd structure level Connection 4th structure level OBJECT 001 DISTRIBUTION BOARD 001 CIRCUIT 001 CIRCUIT 002 CIRCUIT 199 EARTH ELECTRODE BONDI...

Page 91: ...circuit connection In the measurement field there is information about type and number of measurements that belong to the selected structure element object and block and circuit and connection The mai...

Page 92: ...ed test result No of all stored test results in selected location Type of stored measurement in the selected location 8 3 Storing test results After the completion of a test the results and parameters...

Page 93: ...menu installation structure field TAB Selects the location element Object D Board Circuit or Bonding or Electrode Connection UP DOWN Selects the location element in selected level Function selector E...

Page 94: ...ORY in MEMORY menu A warning see fig 6 6 will be displayed Figure 8 7 Clear all memory Keys in clear all memory menu TEST Confirms clearing of complete memory content YES must be selected with keys Fu...

Page 95: ...ion structure field menu without changes Function selector Exits back to main function menu without changes 8 5 3 Clearing individual measurements Select DELETE RESULTS in MEMORY menu Figure 8 10 Menu...

Page 96: ...ode Circuit and Connection In the PCSW package EurolinkPRO default names can be changed with customized names that corresponds the installation under test Refer to PCSW EurolinkPRO HELP for informatio...

Page 97: ...ument Make sure that RS232 is selected in Communication menu In Save menu select memory location to be renamed A new location name scanned from a barcode label or a RFID tag will be accepted by the in...

Page 98: ...ally recognize each other The instrument is prepared to communicate with the PC How to configure a RS232 link between instrument and PC Connect a PC COM port to the instrument PS 2 connector using the...

Page 99: ...matically 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...

Page 100: ...droid device to enter the code Enter code NNNN to correctly configure the Bluetooth link The name of a correctly configured Bluetooth device must consist of the instrument type plus serial number eg M...

Page 101: ...d 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 soft...

Page 102: ...the instrument before opening battery fuse compartment cover hazardous voltage inside Replace blown fuse with original type only otherwise the instrument or accessory may be damaged and or operator s...

Page 103: ...01 5 of reading 3 digits 20 0M 199 9M 0 1 5 of reading 200M 999M 1 10 of reading Voltage Measuring range V Resolution V Accuracy 0 1200 1 3 of reading 3 digits Nominal voltages 50 VDC 100 VDC 250 VDC...

Page 104: ...rent accuracy 0 0 1 I I I N 2 I N 5 I N 0 1 I 0 I 0 5 I N AS NZS selected 5 Test current shape Sine wave AC pulsed A F smooth DC B B DC offset for pulsed test current 6 mA typical RCD type non delayed...

Page 105: ...tion ms Accuracy 0 0 40 0 0 1 1 ms 0 0 max time 0 1 3 ms For max time see normative references in chapter 4 4 4 RCD standard this specification applies to max time 40 ms Test current I N I N 2 I N 5 I...

Page 106: ...e or FUSE selected Fault loop impedance Measuring range according to EN 61557 is 0 25 9 99k Measuring range Resolution Accuracy 0 00 9 99 0 01 5 of reading 5 digits 10 0 99 9 0 1 100 999 1 10 of readi...

Page 107: ...9 99 k 10 10 0 k 23 0 k 100 Nominal voltage range 93 V 134 V 45 Hz 65 Hz 185 V 266 V 45 Hz 65 Hz No trip out of RCD 11 5Line impedance and prospective short circuit current Voltage drop Line impedance...

Page 108: ...whichever is lower Max probe resistance RP 100 RE or 50 k whichever is lower Additional probe resistance error at RCmax or RPmax 10 of reading 10 digits Additional error at 3 V voltage noise 50 Hz 5 o...

Page 109: ...TRMS Clamp current Instrument Maximum voltage on C1 and P C2 measuring inputs 3 V Nominal frequency 0 Hz 40 Hz 500 Hz AC current clamp A1018 Range 20 A Measuring range A Resolution A Accuracy 0 0 m 9...

Page 110: ...tion A Accuracy 0 00 19 99 0 01 indicative 20 0 39 9 0 1 40 0 299 9 999 9 0 1 3 of reading 5 digits Accuracy at operating conditions for instrument and current clamp is given Customized clamps 11 9 Po...

Page 111: ...range is from 0 1 V to 500 V Voltage THD Measuring range is from 0 1 to 99 9 Current harmonics and Current THD Measuring range is from 0 00 A to 199 9 A Energy Measuring range is from 0 000 Wh to 199...

Page 112: ...eading 2 digits 40 0 199 9 0 1 1 of reading 200 999 1 DC Current Measuring range A Resolution mA Accuracy 0 00 1 99 10 1 of reading 2 digits 2 00 19 99 10 1 of reading 20 0 199 9 100 200 299 999 1000...

Page 113: ...l specifications of applied Metrel Powermeter 11 10 3 I V curve DC Voltage Measuring range V Resolution V Accuracy 0 0 14 9 0 1 indicative 15 0 39 9 0 1 1 of reading 2 digits 40 0 199 9 0 1 1 of readi...

Page 114: ...e 40 C 55 C Designed for continuous outdoor use Probe A 1427 Measuring range Resolution W m2 Accuracy 0 999 W m2 1 4 5 digits 1 00 1 75 kW m2 10 4 Measuring principle Monocrystall PV cell temperature...

Page 115: ...ut battery cells Reference conditions 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...

Page 116: ...00 26 48 35 20 5 9 93 14 6 7 94 11 68 4 15 60 21 00 12 48 16 80 16 2 30 3 90 1 84 3 12 6 7 80 12 00 6 24 9 60 20 1 93 3 20 1 54 2 56 10 4 65 6 80 3 72 5 44 32 0 91 1 60 0 73 1 28 16 2 43 4 00 1 94 3 2...

Page 117: ...0 87 20 2 19 1 75 25 0 87 0 70 25 1 75 1 40 32 0 68 0 54 32 1 37 1 10 40 0 55 0 44 40 1 09 0 87 50 0 44 0 35 50 0 87 0 70 63 0 35 0 28 63 0 69 0 55 80 0 27 0 22 80 0 55 0 44 100 0 22 0 18 100 0 44 0 3...

Page 118: ...asuring cable Tip commander A 1401 Three phase adapter with switch A 1111 RCD testing Test lead 3 x 1 5 m Mains measuring cable Three phase adapter with switch A 1111 Earth resistance RE Test lead 3 x...

Page 119: ...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 PV Safety probe Environment Temperature pr...

Page 120: ...MI 3108 EurotestPV Appendix C Country notes 120 Appendix C Country notes There are no specific country notes...

Page 121: ...nstrument and installation Service repairs or adjustment of instruments and accessories is only allowed to be carried out by a competent authorized personnel D 2 Battery The commander uses two AAA siz...

Page 122: ...Switches On Off lamp Tip commander 9 Battery cells Size AAA alkaline rechargeable NiMH 10 Battery cover Battery compartment cover 11 Cap Removable CAT IV cap Tip commander D 4 Operation of commander...

Page 123: ...re D 3 Touch PE test probe the TEST key on commander for at least one second If PE terminal is connected to phase voltage both LEDs will light yellow the warning message on the instrument is displayed...

Page 124: ...s for PANEL measurements WP stands for DC Working Point of the inverter should be actual MPP of the connected PV string but not necessary Inverter AC 3 1 cos AC meas i meas i i i P U I U I and phase a...

Page 125: ...epending on type of temperature being measured as or where NOCT is nominal operating temperature of the cell data supplied by the panels manufacturer and is coeff of temperature of power characteristi...

Page 126: ...TSTC is temperature at STC Tmeas is measured temperature Rs is serial resistance of panel string M is number of modules in serial and N is number of modules in parallel Istc Ustc Calculated values of...

Page 127: ...values of the first method must be converted to a single value result This can be done using the bellow equation which is based on the electrical substitute model of PV modules and returns the same o...

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