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Gossen MetraWatt PROFITEST PV 1500 Operating Instructions Manual
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Gossen MetraWatt PROFITEST PV 1500 Operating Instructions Manual

Peak power meter and curve tracer for pv modules and generators
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Operating Instructions
PROFITESTPV 1500
Peak Power Meter and Curve Tracer for PV Modules
3-447-069-03
and Generators up to 1500 V DC, 20 A DC
2/3.20

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Summary of Contents for Gossen MetraWatt PROFITEST PV 1500

  • Page 1 Operating Instructions PROFITESTPV 1500 Peak Power Meter and Curve Tracer for PV Modules 3-447-069-03 and Generators up to 1500 V DC, 20 A DC 2/3.20...
  • Page 2 11.3.1 Start Measurement at the PROFITEST PV 1500 (“Trace Curve” button)..............17 11.3.2 Managing Files at the PROFITEST PV 1500 (“Data Transfer” button) ..18 11.3.3 Transfer Date and Time to the PROFITEST PV 1500 .....18 11.3.4 Continuous Measurement ............18 11.3.5 Editing the PROFITEST PV 1500 Sensor Database ......19...
  • Page 3 License Agreement The following conditions apply to the use of GMC-I Messtechnik The license agreement is valid for an indefinite period of time. The software by the end user, hereinafter referred to as “licensee”. licensee’s right to use the software expires automatically without notice in the event that he violates any of the conditions of this The subject matter of this agreement if the computer program agreement.
  • Page 4 Safety Precautions in Dortmund, Germany, this measurement can now be easily performed with the PROFITEST PV 1500. Quality control for PV systems is thus quick and Before initial startup of the measuring instrument, read through economical without a long learning curve. In actual practice, this simple yet the included operating instructions completely in any case, decisive test assures safety for the customer and for the installer.
  • Page 5 Caution: Even after disconnecting the device under test, life endan- on page 4. gering voltage may still be present inside the PROFITEST PV 1500! If the rechargeable battery in your instrument is no longer Under certain circumstances, the solar generator may generate...
  • Page 6 As is the case with nearly all electronic measuring instruments, 2 External power pack, 60 W the PROFITEST PV 1500 can only be used within a limited tem- 3 Irradiation reference sensor perature range (see appendix). For this reason, it’s important to...
  • Page 7 Connection to a PC parts for the cable connection to the solar generator, be- The PROFITEST PV 1500 is usually used independent of a PC. cause high voltages may be present and personal injury However, if extended data evaluation is required, or if the...
  • Page 8 Switching the Instrument On Buttons Switch the PROFITEST PV 1500 on with the “Power” switch on Available functions are represented at the screen by means of the front panel. The initial window appears at the color display: buttons which are identified with symbols for the respective oper- ations, for example a PC symbol identifies the data transfer func- tion.
  • Page 9 Observe the safety precautions in section 4 and section 5, as well as the measuring accuracy factors in section 8. Measurement is started either at the PROFITEST PV 1500 or from the intercon- nected analysis PC. Measurement should not be started until the solar generator and the required sensors have been connected.
  • Page 10 Internal non-volatile memory at the formed. PROFITEST PV 1500 is full. Before performing any fur- ther measurements, previously stored measurements A file can be selected with the help of the “Up” and should be deleted from the PROFITEST PV 1500 (see “Down”...
  • Page 11 Insert the measurement cables with MC plugs included with the be greater than 500 W per square meter. PROFITEST PV 1500 into the sockets at the switch as far as they The combination irradiation-temperature sensor measures tem- will go (red plugs to red sockets, black plugs to black sockets).
  • Page 12 Under the following conditions, peak power values obtained with lation to your PC. The setup program copies all of the necessary the PROFITEST PV 1500 have an accuracy of ±5% relative to the files to your hard disk and configures the program. The software...
  • Page 13 Windows update function. – Connect the PROFITEST PV 1500 to an available USB port at your PC. The “found new hardware” dialog is started auto- matically.
  • Page 14 – After installation has been completed, the new COM port appears in the device manager (figure 10.6). Figure 10.4 Figure 10.6 – The screenshot in figure 10.4 shows Windows XP copying the required driver files. 10.2 Uninstalling the CDM Driver Drivers can be removed with the help of the device manager by simply right clicking the respective device and selecting uninstall.
  • Page 15 11.1.3 Browse been stored to the hard disk, perform a measurement, or transfer measurement data from the PROFITEST PV 1500 (ascertained measured values are entered to this document and you can ana- lyze them further or save them to a file). A diagram (line graph of...
  • Page 16 11.1.4 Export 11.1.5 Report Measurement data files from the PROFITEST PV 1500 can be converted to formats which are readable for other programs with the export function. You can use XLS (MS Excel) and DBF (dBase III+) formats, as well as three different ASCII representations.
  • Page 17 11.1.6 Analysis 11.3 Extras First switch the PROFITEST PV 1500 on and set it to “Transfer” The analysis is used to evaluate the characteristic curve measure- (the solar generator to be measured and the sensor should ment. All of the relevant data are arrange in a table. In the event of already be connected if applicable), before using the following errors, reference is made to possible causes in the overview.
  • Page 18 11.3.4 Continuous Measurement First of all, clock time at the PC and the PROFITEST PV 1500 is compared. If the difference is greater than 5 minutes, the applica- tion asks the user if the clock in the PROFITEST PV 1500 should be set to PC time.
  • Page 19 When sensors are changed, the desired sensor data can be selected at the PROFITEST PV 1500 with the help of the “PROFITEST PV 1500” menu. 11.3.8 Calculating Internal Series Resistance R Attention: A PROFITEST PV 1500 must be connected to the PC for this function, and it must be ready for transfer.
  • Page 20 11.3.9 Customer Database 11.3.10 Module Database All relevant customer data, system data and system components The module database is based on the database of the “Photovol- can be managed in the customer database. taik-Forum”. All of the necessary characteristic values are included, which are required for comparison.
  • Page 21 The selected range can then be enlarged. The normal display reappears after drawing a rect- The PROFITEST PV 1500 must be connected to the PC to this angle from bottom right to top left. The selected portion of the end, and must be set to “Transfer”.
  • Page 22 11.4.6 Key On/Off (“Key” button) 11.6 Help A key can be displayed for the diagram if desired. The key 11.6.1 Contents appears in the upper right-hand portion of the graphic. The “Contents” option included in the help menu opens the table of contents for the PV Analysator help function.
  • Page 23 Technical Data PROFITEST PV 1500 Measuring Ranges (subject to change): Std. Measuring Voltage Current Tempera- Irradiation 12.1 Unit of Measure Ranges ture Sampling rate: max. 100 kHz PROFITEST PV 25/100/500/1500 2/5/10/20 –40 °C to 0 to 1300 W Resolution: 0.01 to 0.25 V, 0.005 to 0.001 A 1500 +120 °C...
  • Page 24 List of Symbols Used in Formulas Air mass, relative travel distance of sunlight through the atmosphere Irradiance 1000 W per sq. meter (irradiance under STC) Momentary, effective irradiance with spectral evalua- TRMS tion through the cell material Fill factor, ratio of I , for crystalline pmax pmax...
  • Page 25 Causes of Reduced Output and Yield Error Can be detected by: Possible Cause / Remedy System is not ideally configured Measurement of match losses Planning error / new configuration Incorrect adaptation of strings to inverter Too little power fed to the location and too little generator Planning error / new configuration, replacement of the power inverter...
  • Page 26 Characteristic IU Curves: Contexts The diagrams shown below have been taken from the following books with the kind permission of their authors: Quaschning, Volker: Simulation der Abschattungsverluste bei solarelektrischen Systemen. Verlag Dr. Köster. Berlin. 1996 Wagner Andreas: Photovoltaik Engineering – Handbuch für Planung, Entwicklung und Anwendung. Springer Verlag. Berlin Heidelberg New York.
  • Page 27 Figure: Characteristic curve of a polycrystalline solar cell over the entire voltage range with varying degrees of shading (E = 1000 W per sq. meter, T = 300 K) Figure: Layout of an SM50 module string with a 75% shaded cell (E = 407 W per sq.
  • Page 28 Figure: Simulation of various characteristic module curves with bypass diodes over varying numbers of cells (E = 1000 W per sq. meter, T = 300 K) Figure: Comparison of simulation and measured values using an example with the SM50 module, 36 cells with two bypass diodes over 18 cells each.
  • Page 29 Figure: Resultant characteristic curve using series connection with bypass diode Sample Characteristic Curves from Actual Practice (source: PVE) GMC-I Messtechnik GmbH...
  • Page 30 The calculated R value can then be compared with the mea- sured value, which is read out by the PROFITEST PV 1500 mea- suring instrument after curve tracing. If the measured value is too The characteristic current-voltage curve of a PV generator indi-...
  • Page 31 Solar irradiation is comprised of direct irradiation from the sun, as ditions. well as several indirect components. Amongst others, the indirect With new processes offered by PROFITEST PV 1500 peak power components include reflected irradiation from the environment. meters and curve tracers, it’s now possible to perform measure-...
  • Page 32 The LED lights up when the external charger is connected. 18.2 Acoustic Signals The PROFITEST PV 1500 indicates errors and operating states by means of acoustic signals: Low pitch tones are designed in the fol- lowing as “da”, and high pitch tones as “di”. Signal...
  • Page 33 Maintenance and Recalibration 19.3 Repair and Replacement Parts Service Calibration Center and Rental Instrument Service 19.1 Return and Environmentally Sound Disposal If required please contact: This instrument is subject to directive 2012/19/EC on Waste Elec- trical and Electronic Equipment (WEEE) and its German national PV Engineering GmbH equivalent implemented as the Waste Electrical and Electronic Hugo-Schultz-Str.
  • Page 34 Product Support If required please contact: GMC-I Messtechnik GmbH Product Support Hotline Phone: +49-911-8602-0 Fax: +49-911-8602-709 e-mail support@gossenmetrawatt.com GMC-I Messtechnik GmbH...
  • Page 35 GMC-I Messtechnik GmbH...
  • Page 36 © GMC-I Messtechnik GmbH Edited in Germany • Subject to change without notice • PDF version available on the Internet All trademarks, registered trademarks, logos, product names, and company names are property of their respective owners. Phone +49 911 8602-111 GMC-I Messtechnik GmbH +49 911 8602-777 Südwestpark 15...

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