PVPM 2540C
6020C
1000C
1000C40
Peak Power Measuring Device
and I-V-Curve Tracer
for PV Moduls und Generators
Users Manual
2
Release © 07 / 2015
PV-Engineering GmbH
Hugo-Schultz-Str. 14
DE-58640 Iserlohn
Tel. +49 2371 436648-0
Fax. +49 2371 436648-9
e-Mail service@pv-engineering.de
1Software End User License Agreement 3
Contents
1 SOFTWARE END USER LICENSE AGREEMENT.......................................................................................................................... 5
2 INTRODUCTION.................................................................................................................................................................................. 6
3 NORMAL USE....................................................................................................................................................................................... 6
4 SAFETY REQUIREMENTS................................................................................................................................................................ 7
5 OPERATION OF THE PVPM.............................................................................................................................................................. 9
5.1 OPERATING AND CONNECTION ELEMENTS.................................................................................................................................................... 9
5.2 GENERAL HINTS................................................................................................................................................................................. 10
5.3 CONNECTING PERIPHERAL DEVICES........................................................................................................................................................10
5.4 POWER SUPPLY................................................................................................................................................................................... 11
5.5 CONNECTING A PC..............................................................................................................................................................................11
5.6 CONNECTING THE SOLAR GENERATOR..................................................................................................................................................... 11
5.7 CONNECTING THE COMBINATION SENSOR.................................................................................................................................................11
5.8 SWITCHING-ON...................................................................................................................................................................................12
5.9 KEYS................................................................................................................................................................................................ 12
5.10 MEASUREMENT................................................................................................................................................................................. 12
5.11 MENUS........................................................................................................................................................................................... 13
5.12 MESSAGES.......................................................................................................................................................................................15
6 EXTERNAL SECURITY SWITCH 1000V / 25A..............................................................................................................................16
7 IMPACTS ON THE ACCURACY OF THE MEASUREMENT......................................................................................................17
8 INSTALLATION OF THE TRANSFER SOFTWARE PVPM.DISP............................................................................................... 19
9 INSTALLING THE USB DEVICE DRIVER..................................................................................................................................... 20
9.1 INSTALLATION WITH „NEW HARDWARE FOUND“......................................................................................................................................... 20
9.2 UNINSTALLING THE CDM DRIVER.......................................................................................................................................................... 23
10 OPERATION OF THE SOFTWARE PVPM.DISP......................................................................................................................... 24
10.1 MAIN MENU FILE............................................................................................................................................................................. 24
10.2 EDIT............................................................................................................................................................................................... 26
10.3 EXTRA............................................................................................................................................................................................26
10.4 DIAGRAM........................................................................................................................................................................................ 29
10.5 RESULTS / LISTS...............................................................................................................................................................................30
10.6 HELP (NOT YET IMPLEMENTED)............................................................................................................................................................ 31
11 HARDWARE INFORMATION........................................................................................................................................................ 32
11.1 MEASURING UNIT:............................................................................................................................................................................ 32
11.2 CALCULATION UNIT:..........................................................................................................................................................................33
11.3 DISPLAY:......................................................................................................................................................................................... 33
11.4 OPERATION:..................................................................................................................................................................................... 33
11.5 POWER SUPPLY:................................................................................................................................................................................33
11.6 DIMENSIONS..................................................................................................................................................................................... 33
11.7 OPERATION CONDITIONS:.................................................................................................................................................................... 33
11.8 OPTIONALLY AVAILABLE:..................................................................................................................................................................... 33
12 LIST OF SYMBOLS..........................................................................................................................................................................34
13 REASONS FOR DECREASED POWER AND YIELD OF PV GENERATORS..........................................................................35
14 I-U DIAGRAM: EXPLANATION.................................................................................................................................................... 36
15 SAMPLE CURVES............................................................................................................................................................................ 40
16 GLOSSARY........................................................................................................................................................................................ 43
16.1 AZIMUTH (SS) AND ELEVATION (Α)........................................................................................................................................................ 43
16.2 SLOPE............................................................................................................................................................................................. 43
16.3 DC................................................................................................................................................................................................ 43
16.4 DEGRADATION CHARACTERISTIC........................................................................................................................................................... 43
16.5 DIRECT RADIATION/ DIFFUSE RADIATION.................................................................................................................................................43
16.6 GENERATOR..................................................................................................................................................................................... 43
16.7 GLOBAL/TOTAL RADIATION.................................................................................................................................................................. 44
16.8 SHORT-CIRCUIT CURRENT OF SOLAR CELLS.............................................................................................................................................. 44
16.9 MISMATCHING.................................................................................................................................................................................. 44
16.10 MPP........................................................................................................................................................................................... 44
16.11 TRACKING...................................................................................................................................................................................... 44
16.12 PEAK POWER................................................................................................................................................................................. 44
16.13 PERFORMANCE RATIO...................................................................................................................................................................... 44
16.14 PHOX-SENSOR................................................................................................................................................................................ 44
16.15 INTERNAL SERIES RESISTANCE............................................................................................................................................................. 45
16.16 SOLAR CONSTANT...........................................................................................................................................................................45
16.17 SOLAR IRRADIATION / INSOLATION....................................................................................................................................................... 45
16.18 CURRENT-VOLTAGE-CHARACTERISTIC................................................................................................................................................. 45
16.19 FOUR-WIRE MEASUREMENT (KELVIN MEASUREMENT)............................................................................................................................. 46
16.20 EFFICIENCY.................................................................................................................................................................................... 46
17 APPENDIX A...................................................................................................................................................................................... 47
17.1 - INDICATOR LIGHTS IN THE FRONT PANEL............................................................................................................................................... 47
17.2 SPEAKER SIGNALS:............................................................................................................................................................................. 47
Operation manual for PVPM devices PV-Engineering GmbH
1Software End User License Agreement 4
1 Software End User License Agreement
LICENSE GRANT
The accompanying software and associated documentation ("Software")
are proprietary products owned by PV-Engineering GmbH and protected
under international copyright law. You may not remove any product
identification, copyright notices, or other notices or proprietary restrictions
from the Software.
Use of the Software is defined to be use and distribution consistent with
the following conditions.
You or any person under your authority or control may:
✔ Make copies of the Software for backup purposes provided said copies
contains all of the original Software's proprietary notices;
✔ Use the Software only on computers owned, leased, or otherwise
controlled by you and only on one computer at a time;
✔ Use the Software on a network, provided that a licensed copy of the
Software has been acquired for each person permitted to access the
Software through the network;
✔ Distribute or redistribute data files generated by the Software;
You or any person under your authority or control may not:
✗ Copy or use the Software except as authorized under this License
Grant;
✗ Use on two or more computers at a time without separate
authorization and the payment of additional license fees;
✗ Distribute or redistribute any part of the Software or Files except as
described above;
✗ Permit other individuals to distribute or redistribute any part of the
Software or Files;
✗ Modify, translate, reverse engineer, decompile, disassemble, or create
derivative works based on the Software or Files;
✗ Copy the Software or Files; rent, lease, grant a security interest in, or
otherwise transfer rights to the Software or Files; or remove any
proprietary notices or labels on the Software or Files.
EXPORT
You agree to comply fully with all laws and regulations to assure that
neither the Software, nor any direct product thereof, is exported, directly or
indirectly, in violation of law.
TERMINATION
This license granted hereunder will terminate automatically if you fail to
comply with the limitations described herein. Upon termination, you must
destroy all copies of the Software.
LIMITED WARRANTY
PV-Engineering GmbH makes no warranties, including warranties of
merchantability and fitness for a particular purpose. Any remedy under this
warranty is limited to return of the software and the user manual to the
dealer or to PV-Engineering GmbH for replacement or refund. This
warranty is valid for 90 days from your date of purchase. PV-Engineering
GmbH excludes any warranty coverage for incidental or consequential
damages. Some states do not allow limitations on implied warranties, so
some of the above limitations may not apply to you.
TRADE MARKS
Borland is a trade mark of Borland Inc.
MS-DOS, MS-Windows are trade marks of Microsoft Corporation
Iserlohn, 20.06.2003
Operation manual for PVPM devices PV-Engineering GmbH
2Introduction 5
2 Introduction
The devices of type PVPM enables the measurement of the I-V-curve of photovoltaic modules as well as of
strings. By a new developed procedure the device can measure and calculate the peak power Ppk, the Rs and
Rp directly at the place of installation of the PV system. Calculation results and the diagram can be displayed on
the internal LC-display.
The peak power is the power of a module under Standard Test Conditions (STC) [1]. In the past the very
complex measurement of the peak power was possible only in particularly suited laboratories. By a new
patented method [2], which was developed by Professor Wagner at the University of Applied Sciences
Dortmund, this measurement can easily be performed with the PVPM. So the quality control of a PV system can
be executed fast and economically. This simple and meaningful check in practice serves the certainty of the
customer and also that of the installer. Beyond that the measured I-V-curves permit further explanations about
the electrical characteristics of the checked module or string. So the PVPM is suitable as an instrument in
research as well as for development purposes.
The PVPM is a mobile measuring device with integrated battery supply and battery charger in a durable metal
housing. The device has its own industrial miniature PC and a high-contrast LC display and thus its function is
independent of other devices. Nevertheless (if desired) a PC can be attached for data transfer and further
analysis of the measured values over a standard serial interface.
The PVPM is operated comfortably over a few keys and an on-screen menu. The functions are defined selfdescribing and the user is always led by the program. So no long training activities for the operating personnel
are necessary.
The PVPM automatically measures the I-V-characteristic of the PV generator at a capacitive load. From the
measured data it calculates the effective solar cell characteristic, Ppk and Rs [2], [3]. After the measurement the
data are stored automatically in a non-volatile storage and so are available later (e. g. in the office) [4]. The
device internally can store the data of several 1000 measurements.
The following results are displayed:
Permanent values:
Peak Power P
Pk
Internal Series Resistance R
s
Internal Parallel Resistance R
p
Current values, depending on irradiation and temperature:
V
pmax
, I
pmax
, P
max
Voc , Isc , FF, T
mod
, E
eff
The determined I-V-characteristic can also be shown directly on the LC-display.
[1] IEC60904-3: STC= Irradiance 1000 W/m2, Spectrum AM=1.5, Cell Temper. 25°C
[2] Wagner A.: Peak Power and Internal Series Resistance Measurement under Natural Ambient Conditions. –EuroSun Copenhagen
2000
[3] Bendel C., Wagner A.: Photovoltaic Measurement relevant to the Energy Yield. - WCPEC3 Osaka 2003
[4] Schulte K.M., Wagner A.: Die Effektive Solarzellenkennlinie. - Anwendung Teillast-Berechnung. Staffelstein. 2002
3 Normal use
The peak power and I-V-characteristic measuring instrument series PVPM is used exclusively for the
admission of the I-V-characteristic curve of single photovoltaic modules and strings. Before connecting
the PV generator under test to the measuring instrument it must be ensured that the test specimen
cannot exceed the maximum current and voltage levels of the measuring instrument at any time.
Operation manual for PVPM devices PV-Engineering GmbH
4Safety Requirements 6
4 Safety Requirements
Before the first use of the PVPM read this manual carefully and completely. It contains important hints to avoid
damage to persons or the measuring device. These hints are emphasized by a frame around the text and
should be paid attention to.
References in this document, which concern security matters, are indicated by a frame. Damages due to the
neglection of the references in this document are excluded from the warranty. No warranty at all is guaranteed
for consequential damages.
The program PVPM.disp requires a PC with hard disk and MS Windows NT or higher and a mouse pointing
device. The connection of the PVPM requires a free RS232 serial interface. Please be sure that this interface
has no interrupt conflicts with other devices in the PC.
If no serial interface is available at the PC, the PVPM can be attached to the PC with the help of a commercial
USB to serial converter.
The required free space on the hard disk before installing PVPM.disp is about 5 MB. Please be sure later on
that there is enough free space on the hard disk before storing measured data.
Attention: For the purpose of data security we would like to point out the importance of saving the database
of the program regularly on another data medium, so in the event of damage you will be able to continue
working without considerable data loss. Such a damage can not be excluded even under the present stateof-the-art. Please do not restore single data files, but always the complete data back-up of the program,
otherwise you might cause malfunction, this in turn might lead to data loss! In case of doubt please contact
the distributor or the producer.
! WARNINGS !
To disregard the following information can lead to severe injury and even entail a peril to
life
CAUTION! Before starting up the equipment please read this manual
carefully!
NOTE: Danger of an electrical impact
Note: Measuring category I. Do not use this device in measuring categories II, III and IV.
Do not connect measuring inputs to ground.
This device may never be utilised close to inflammable gases.
Keep children and infants away from the measuring equipment!
The measuring device may not be used in locations with intense dust exposure or high
humidity. No fluids may reach the interior of the measuring device.
At appearance of unusual sounds, the development of smell or smoke the device has got
to be switched of immediately, the circuit breaker and the current source have got to be
disconnected.
Before each measurement check the test leads for the power measurement for damages.
Never operate damaged test leads! If the conducting wires of the measuring device are
damaged they have to be replaced. Mending the wires is not admissible.
Operation manual for PVPM devices PV-Engineering GmbH
4Safety Requirements 7
The current measurement input may only be attached to a limited source of direct current
(photovoltaic generator) with at most 20A (40A with PVPM2540C and PVPM1000C40)! The
connection of other sources can lead to demolition of the device and to danger of life!
For security reasons only qualified personal must establish the cable connection between
the PV generator and the PVPM security switch! The measurement should be carried out
or accompanied by qualified personal. Additional qualifications and laws (e.g. VDE 0100)
have to be observed, otherwise high currents and voltages involve danger of life!
The PVPM and all devices being part of it may be opened and repaired by authorized
qualified personal only. Before opening a case every cable connection must be
disconnected! Keep in mind that even with disconnected cables the may reside
dangerous high voltage inside the case!
The solar generator can generate very high tensions and currents, which can affect your
health when you do not handle with care!
!! VERY IMPORTANT !!
Never plug in or remove the cable connectors between solar generator and PVPM
before the solar generator is deactivated! A security switch added to the
measurement line allows the simultaneous disconnection and the safe connection
of measuring wires to the PVPM.
The PVPM will make a short circuit during measurement or due to wrong polarization, and
when you tear of a cable under this condition, a light arc can arise and can cause serious
damage to health and material! After the generator is deactivated you can remove the
cable connection without harm.
Operation manual for PVPM devices PV-Engineering GmbH
5Operation of the PVPM 8
5 Operation of the PVPM
5.1Operating and connection elements
1. Test button for battery charge control (working only with lead acid battery)
2. On/Off switch
3. Status indicator lamps
4. LC display
5. Control buttons
6. Temperature measuring input Pt100 or Pt1000 (depending on model)
7. .Irradiation or combined irradiation and temperature input (depending on model)
8. Serial interface RS-232 to the PC
9. Four-wire measuring connector (voltage)
10. Four-wire measuring connector (current)
11. External voltage supply/battery charge at left side of the PVPM
Fig.: Sensor connectors until 2003 (left) , 2003 - 2008 (middle), scince 2008 (right )
Operation manual for PVPM devices PV-Engineering GmbH
5Operation of the PVPM 9
5.2General Hints
The PVPM, as nearly all electronic measuring device, can only operate in a defined temperature range (see
appendix). That is why the PVPM should not be exposed to direct sunlight over a longer period of time. Keep
the device in a shady place or protect it from direct sunlight using a sunshade.
The standard version of the PVPM cannot be integrated into other devices or e.g. brackets. It is very important
that the air can move free around the case so that a proper cooling is guaranteed! Only if the PVPM is
completely out of operation (even no charging) it may be stacked.
Attention: Never loosen a measurement cable connection during a measurement! The considerable
dc tensions and currents can cause a light arc which may cause fire, serious injuries and even
death! (see chapter 4)
The front panel of the PVPM is rather rough, but you should handle it with care anyway. To avoid damage of the
front panel please take notice of the following hints:
Do not touch the front panel with a sharp or pointed object. This could force scratches and might even
destroy the foil especially in the regions with switches in the back.
Clean the surface with a soft and damp tissue. Do not use materials that can scratch, especially on the
cover of the display. A scratched display cover will dramatically affect the display quality.
The case is not water proofed. Do not expose the PVPM directly to influence of water, rain or similar.
For a good measuring quality the sun irradiance during the measurement should be above 500 W/m2.
Measurements are possible below this irradiance value, but less precise and meaningful.
5.3Connecting Peripheral Devices
For an I-V-curve measurement the following components are necessary:
Peak power measuring device PVPM (measurement of I-V-curve, display of results)
Phox irradiance sensor with Pt100/Pt1000 temperature sensor
external security switch 1000V / 32A (see chapter 6)
of course the module to be measured and the cable connection between PV module and PVPM
optional: External PC for the operation of the measurement and evaluation of the measured data
The PVPM is equipped with the following input/output interfaces (you will find all interfaces besides the power
supply at the front panel, they are all marked):
Interface Function
Power supply At the left side of the PVPM, input 16Vdc
Temperature (External) temperature sensor
Irradiance Combined sensor irradiance / Pt1000 temperature
4-wire-measurement Voltage input (module under test)
Current input Current input (module under test)
PC Serial connection to PC (AT Cross cable 9-Pin)
Operation manual for PVPM devices PV-Engineering GmbH
5Operation of the PVPM 10
5.4Power Supply
The PVPM contains an accumulator which let it become independent from mains grid power supply. The
accumulator can be charged by the external power supply and an integrated charge unit. After connecting the
external power supply to the left side of the PVPM case the accumulator is loaded automatically. The loading
state is displayed by a LED at the front panel of the device.
5.5Connecting a PC
The PVPM can operate independent from an external PC. For an extended evaluation of the measured data or
just for controlling the PVPM from a PC you can connect the PC to the PVPM with the delivered cable (USB A –
Mini B). Attach this cable to a free USB port of your PC and to the “PC” connector of the PVPM.
Caution: before you can control the PVPM from a PC with PVPM.disp it is necessary to select the menu option
“transfer” on the PVPM. Otherwise the PVPM will not listen to the serial port and the PC can not access the
device.
5.6Connecting the Solar Generator
Important: during an I-V-curve measurement the solar generator under test must be disconnected from all
other devices like batteries, inverters or loads. During the measurement the PVPM will short circuit the solar
generator for some seconds and it might be damaged by still connected batteries or load capacities of the
inverter!
Connect the PVPM properly to the solar generator using the cables delivered with the PVPM. The plus pole is
marked RED, the minus pole is marked BLACK!
Assure that all connectors of the power measuring cables are pushed in completely (until stop) into
the sockets.
For older, not yet serviced PVPMs: When connected with wrong polarity the solar generator is in short circuit
through the safety diodes integrated in PVPM (than no measurement of current is possible). This condition must
not be kept for more than one minute, else the measuring amplifier may overheat. Newer or serviced PVPMs
have an inverse-polarity protection diode that prevents this problem.
It is important, that all 4 plugs of the 4-wire-measurement are connected properly by the delivered 4-wire-cable
or (if you don’t want a 4-wire-measurement) the two red plugs should be connected and the two black plugs as
well. Use standard short circuit plugs (19mm) or laboratory cables for this purpose. Without this connection a
measurement is not possible!
Caution: keep a sufficient distance to power leading parts of the cables between solar generator and
measuring device. These cables may lead high tension what may affect your health even without direct
contact!
5.7Connecting the Combination Sensor
For a measurement you must connect a Pt100/Pt1000 temperature sensor and a Phox irradiance sensor
(delivered as a combined device) to the relevant plug(s) of the PVPM. For just the measurement of serial
resistance Rs or I-V-curve these sensors are obsolete. The plugs are build in a way with prevents you from
connecting a sensor to a wrong plug.
The combined Phox/Pt1000 sensor should be mounted near the modules to be measured. It must have exactly
the same orientation (elevation and azimuth) regarding the sun as the modules have. Most time the easiest way
is the direct assembly to the module frame. Please take care that the sensor will drop no shadow to the module!
The sensor needs several minutes to adapt to the environment conditions: the reference cell firstly should reach
the temperature of the module, before you can start to measure I-V-curves with the PVPM (see chap.5.10).
For this reason the sensor should not be set up far away from the modules (e.g. modules on the roof, sensor in
the yard). Since the solar cells do not react only to the direct irradiation, but also to light reflected in the
environment, the sensor can possibly notice different light intensity in the same orientation of sensor and
modules and so falsify the results of the measurement.
In the simplest case the sensor is fastened with a clamp to the modules under test. Pay attention that the
sensor does not shadow the modules under test! The sensor should have some time in order to adapt to the
Operation manual for PVPM devices PV-Engineering GmbH
5Operation of the PVPM 11
site conditions. At PVPM devices that have no second temperature measuring input the sensor must
approximately reach the temperature of the module under test (the temperatures are readable on the display of
the running PVPM). For security reasons we recommend to check the backsurface temperature of the module
under test additionally manually e.g. with an infrared thermometer. Now a measurement with the PVPM can be
carried out (s. also chapter 8).
5.8Switching-on
Switch the power of PVPM on by pushing the trigger switch “Power” at the front panel for approx. 1 second
(push it again to power the device off again). The indicator light “On” will show you the presence of power from
the accumulator or an external power supply. The PVPM will now pass some self tests and will be ready after
about 10-15 seconds of operation. The device is ready when the main menu appears on the LCD-screen.
Lamps on front panel:: see chapter 17.1
The PVPM reports several system conditions, functions and errors by speaker signals. A list of signals you will
find in the appendix.
When the device signales readiness, you can start a new measurement.
Only devices with Li-Ion battery:
● The device will power off automatically, if the battery voltage becomes too low. Recharge the battery before
you use the device again. Caution: charging is only allowed in the temperature range between 0°C and
40°C. If the battery temperature is outside this range, charging will not proceed.
● If the battery voltage becomes lower and the device estimates an operation time left of less than 30
minutes, the LED „State of charge“ will blink red.
● The battery then should be charged within short time or the device should be powered externally.
5.9Keys
5.9.1 Test
The “Test” key is used to visualize the state of charge of the accumulator with the front panel LEDs when the
device is not operating. You should do this regular to avoid damage of the accumulator through inevitable self
discharge. Charge the PVPM completely at least once a month even if you don’t use the device.
5.9.2 ESC
The “ESC” key will bring you up to the next higher menu level.
5.9.3 HOME
The “HOME” key will bring you up to the main menu.
5.9.4 ENTER
With the “ENTER” key you select an option or confirm.
5.9.5 Arrow keys
You can move the mark in menus and other lists using the arrow keys.
5.10 Measurement
Please pay attention to the safety hints in chapters 4+5 and factors affecting measurement accuracy in chapter
6.
The measurement can be started from the PVPM or from a connected PC (see chapter 10). The measurement
should not be started before the solar generator and the necessary sensors are connected properly. The I-Vcurve measurement will take up to 2 seconds, than the calculated results will be displayed immediately on the
PVPMs display (or on the PC).
Operation manual for PVPM devices PV-Engineering GmbH
5Operation of the PVPM 12
5.11 Menus
On the display of the PVPM vertical and horizontal menus may
appear. The handling is same for both: choose an option with the
arrow keys, select it with “Enter” key. The “Home” key will bring you
back to the main menu, “ESC” key back to the next higher menu
level.
5.11.1 Menu „New measurement“
Brings you to the sub menu:
5.11.1.1Menu “Start measurement”
A single measurement is made and the results like Ppk and
Rs will be calculated and displayed at once. The data is
stored permanently and automatically. The I-V-curve can
be displayed on the graphical display immediately.
5.11.1.2 Meas. series
The “measurement series” was implemented to allow marginal structuring of the measured data. Due to the
lack of a alphanumerical keyboard no additional data can be added to the measurements. The “measurement
series” now allows to assign a number to the measurements. So you can organize datasets that belong together
(for example from one module) with the same “measurement series” index. In the menu “Service” you can reset
the object index to 1.
5.11.2 Menu „Stored meas.“
This function enables you to recall a former
automatically stored measurement from the internal
storage (as long as you not already deleted the
dataset). The datasets are displayed in a list identified
by the date and time of the measurement. Locate a
dataset with the arrow keys, select the dataset with
“Enter”. If more than one page of datasets can be
displayed you can select other pages with the keys
“Left” and “Right”.
Now a menu with “Display”, “Delete” and “Abort”
appears. “Display” will again show the results of this
measurement on the display, “Delete” will delete the dataset from internal storage (caution: you cannot undo this
operation!), “Abort” brings you back to the main menu.
Operation manual for PVPM devices PV-Engineering GmbH
5Operation of the PVPM 13
5.11.3 Menu „Transfer“
This function allows the operation of the PVPM by a connected
external PC (see also chapter 10). Terminate this function by
pressing the ESC key.
5.11.4 Menu „Service“
Brings up to the following sub menu:
5.11.4.1Menu “Select sensor”
You can select one of the sensors that are defined in the sensor
database (see chapter 10.3.4).
5.11.4.2Disp. contrast
Newer PVPM devices allows the control of the contrast voltage of the LC display by software. So the quality of
the presentation e.g. under sunlight can be optimized.
5.11.4.3Menu “Reset obj. index
Here you can reset the object index to a value of 1.
5.11.4.4Menu Set Date/Time”
Here you can set date and time of the internal clock of the PVPM1000C, but it will be much more simple to do
this with the program PVPM.disp (see chapter 10).
Operation manual for PVPM devices PV-Engineering GmbH
5Operation of the PVPM 14
5.12 Messages
Message: Description:
'Serial error' An error in the serial connection between PVPM and PC ocurred
'No measured data' No measured data present
'Configuration file not found!' Internal error, consult manufacturer. PVPM cannot work without its configuration file
'Irradiance varies (ref-cell)!',
'Irradiance too low!',
'Irradiance varies (module)!' The irradiance is not constant enough for the peak power measurement (for example due to moving
clouds)
'not available' This result cannot be calculated
'No room for new data!',
'Delete files from PVPM' There is no space left on the internal permanent storage, you have to delete stored data from the
permanent storage of the PVPM (see 5.11.1.2)
'Error when writing ' Problems during the writing of a measuring data to the internal permanent memory
Measurement runs',
'Please wait...' Measurement is in process
'Error writing file ' An error ocurred storing the measured data
'Data transfer:',
'Quit transfer with ESC' Data connection to PC invoked
'Measurement not yet possible' The security delay between two measurements is not yet elapsed
'Calculation of Rs not possible' Data is not sufficient for calculation of Rs. Redo the measurement
'Values not evaluablely' Data is not sufficient for calculation. Redo the measurement
'Voltage too high!' Immediately switch off the generator with the external security switch! The device could be damaged
by the high voltage!
'Service required!' The device is damaged internally and requires test and repair through authorised personnel.
'Wrong polarity!' The measuring cables are mounted in the wrong way! Switch off the generator with the external
security switch immediately! The device will short circuit the generator if the polarity is wrong and can
take harm. If you disconnect the cables under voltage a light arc can cause serious damage to
health and material
Operation manual for PVPM devices PV-Engineering GmbH
6External Security Switch 1000V / 25A 15
6 External Security Switch 1000V / 25A
Use this switch to disconnect the PVPM from the PV power before connecting or disconnecting the measuring
cables to/from the PVPM. This avoids damages of your own health or the PVPM.
Handling:
Turn the knob at the switch in a neutral position “0” (both “0” positions are equal).
Put the measuring cable delivered with the PVPM as far as possible to the sockets at the switch housing, red
connectors to red sockets and black connectors to black sockets. You can reverse the two red connectors
without harm, the two black ones as well. Now connect the cables mounted at the switch to the PVPM (red to
red, black to black).
Before you can make a measurement you have to turn the knob at the switch to one of the “1” positions. After
the measurement turn the switch again in position „0 “! Afterwards the wiring at the PVPM can be removed
safely.
Security advice
CAUTION: Do never forget to switch to “0” before handling the connectors at the PVPM!
If you detect a defect at the switch, the housing or the connection cables, the switch must not be
used any longer under any condition!
Only specially instructed professionals must do repairs!
Keep the switch and cables away from liquids, dust and dirt. Clean the surface with a damp cloth
only.
Operation manual for PVPM devices PV-Engineering GmbH
7Impacts on the accuracy of the measurement 16
7 Impacts on the accuracy of the measurement
Be sure, that there is no shadow (even not the smallest) affecting the module under test. Even the shadow of
grass may cause an error! This is also true for the reference sensor. Please consider that also a contamination
of the modules becomes effective as shading.
The higher the irradiance to the module, the more exact will be the result. The irradiance measured by the
combined sensor should be higher than 500 W/m2 for good results.
The combined Phox/Pt1000 sensor measures the irradiance and the cell temperature at the back side of the
irradiance reference cell. If no external temperatur sensor for the measurement of the back side temperature of
the module under test is available the PVPM expects the temperature of the reference cell to be nearly the
same as that of the measured module. This will be true with sufficient precision if the reference cell and the PV
module were exposed to the sunlight for same period of time (at least 15 minutes).In addition before a
measurement modules and reference cell should be exposed directly aligned to the sun for more than 15
minutes. For sureness the backsurface temperature of the module should be additionally checked before the IV-curve measurement e.g. with an infrared thermometer.
The angle of the module regarding the sun should be in an range of 10° regarding the right angle between
sunlight and module surface. Very important is a sufficient irradiance to the module and precise alignment of the
reference cell towards the module. Often the easiest way is to clip the combined sensor directly to the side or
top of the frame of the measured module. However the sensor may also be installed in some distance to the
module if you can grant the correct alignment and the sensor does “see” the same light as the module.
Principally the irradiance reference must have the same spectral behavior than the module under test
(according to IEC 60904). It is possible to use a module like that under test as irradiance reference: the module
will be short circuited by a small precision shunt resistor which will operate the module near the Isc . The voltage
at the shunt resistor is proportional to the Isc and so to the irradiance. That is how most irradiance reference
sensors work.
Caution: even a few degrees deviation in the temperature of the reference cell towards the module
temperature can cause a significant error in peak power measurement. Before a you make a
measurement be sure, that the reference sensor and the module were exposed to the same ambient
conditions for a sufficient period of time!
You can enhance the precision of the PVPM results by measuring the same object several times (e.g. 5 times)
and after that do a statistical evaluation on these results.
Given below are once more the parameters, that are decisive for the accuracy of the measurements:
Operation manual for PVPM devices PV-Engineering GmbH
7Impacts on the accuracy of the measurement 17
Accuracy of the peak power calculations from I-V characteristics of PV generators
with the PVPM
Under following constraints the peak power results of the PVPM have an accuracy of +/- 5% relating to the
actual peak power value of the device under test:
● The device under test consists of mono- or polycristalline silicon cells
● The device under test is not (not even slightly) shadowed
● The irradiation reference sensor is not (not even slightly) shadowed
● The irradiation reference sensor must have largely the same spectral sensitivity as the tested device
● The measurement has to be carried out under natural sunlight
● According to IEC60904 the sun has to stand within +/- 10° at right angle to the active surface of the device
under test
● According to IEC60904 an irradiation of at least 800W/m² is required. On the basis of comparative
measurements we found 600W/m² to be sufficient for the PVPM
● The measurement of the irradiation has to take place immediately before/after that of the I-V characteristic,
the time-lag between measurement of characteristic and irradiation should be less than 1ms.
● The measured value of the irradiation reference sensor has to be adjusted with the measured temperature of
the reference cell
● The measurement of the cell temperature has to take place immediately before/after the measurement of
the characteristic within 1second and an accurateness of 1K
● The active surface of the device under test must lie in-plane with the irradiation reference sensor (within +/-
1-2°)
● Before the measurement of the I-V characteristic the irradiation has to be constant enough (+/-10W/m²) for
at least 10 seconds , in that way misinterpretations of the temperature of tested device and reference sensor
can be avoided
● The irradiation must not vary more than 10W/m² during the measurement (PVPM will caution the user in this
case)
● The temperature of the device under test and the reference sensor has got to be balanced (no alteration of
temperature may be indicated)
● Current and voltage of the device under test are measured with distinct measuring lines (four-wire
measurement)
Operation manual for PVPM devices PV-Engineering GmbH
8Installation of the Transfer Software PVPM.disp 18
8 Installation of the Transfer Software PVPM.disp
PVPM.disp is delivered on a CD-ROM or a comparable storage medium and available by download at www.pve.de. The medium contains a setup program for easy installation of the software on to your PC. The setup
program will copy all necessary files to your hard disk and initializes the program. The installation can be
performed by every person with basic experience of PC and MS Windows®.
For the installation of the software perhaps administrator rights are required
For the installation the following steps are necessary:
1. Insert the CD-ROM with the setup application into the appropriate drive of your PC .
2. If the setup application starts automatically after inserting the CD-ROM, continue with 4.
3. Under “Start” select menu option “Execute”In the now appearing edit line under “Open” enter “x:setup” (were
x is the drive letter of the installation media. Press ENTER now or click the Ok-Button.
4. Now the setup program will be executed. Follow the messages on the screen.
5. Setup now copies all necessary files to your hard disk and will create a new program group for PVPM.disp..
6. After completing the installation please execute PVPM.disp. The program should now work as described in
the following text.
The operation of the program will be professed detailed in chapter 10 .
For the operation of the program these files are necessary:
{program} \ PVPMdisp Program file and additionally files required for the
operation of the application (eg language files)
{common} appdata \ PV Engineering \ PVPMdisp Configuration and the database files
{user docs} \ PVPMdisp Sample and measured data
The program will create files with the extension .SUI, which contains measured data from an I-V-measurement.
When these files were created automatically during a data transfer from PVPM to PC the file name will contain
the date and time of the measurement. A typical file name could be 24-05-01 14_17_04.SUI, this file
contains data from a measurement made May 24., 2001 at 2:17:04pm.
The measuring data are usually stored in files below “My Documents\PVPMdisp\”.
Operation manual for PVPM devices PV-Engineering GmbH
9Installing the USB device driver 19
9 Installing the USB device driver
9.1Installation with „New hardware found“
We now will describe the installation of the USB driver for the virtual COM-port using the example of Windows
XP.:
➔ You will find the device driver on the installation CD-ROM in a directory „x:\CDM nnnnn“. Here x: means
the CD-ROM drive containing the installation CD and nnnnn the version number of the USB driver. The
newest driver you will find always on the website of FTDI (www.ftdichip.com).
➔ If you use Windows XP or Windows XP SP1 you should disconnect the internet connection temporary.
You can connect the network again after finishing the installation.
➔ This will not be necessary for Windows XP SP2, if this is configured to ask before it connects to
Windows Update.
➔ Connect the PVPM to a free USB port of your PC and switch it on. After some seconds the dialogue
“New hardware found” will appear.
➔ If there is no internet connection or if Windows XP SP2 is configured accordingly you will be asked as in
Figure 10.1 before a connection to Windows Update will be made.
Select “No, not this time” and click on “Next”.
Figure 10.1
➔ Select “Install from a list or specific location” as displayed in Figure 10.2 below and click on “Next”
Operation manual for PVPM devices PV-Engineering GmbH
9Installing the USB device driver 20
Figure 10.2
Figure 10.3
➔ Select “Search for the best driver in these locations” and enter the directory with the driver files in the
combo box (e.g. "D:\CDM 2.02.04"), or search for it by pressing the button “Browse”. If the directory is
entered click “Next”, to continue.
➔
➔ If Windows is configured to warn, if a not WHQL certified driver is to be installed, an warning message
will appear now. Click to “Continue anyway” and continue the installation.
Operation manual for PVPM devices PV-Engineering GmbH
9Installing the USB device driver 21
Figure 10.4
➔ The screen in Figure 10.4 displays how Windows XP copies the required drivers.
Figure 10.5
➔ Windows will display the message that the installation was successful (Fig. 10.5). Click on “Finish” to
finish the installation for the first port of the USB device.
➔
➔ The hardware assistant may now appear a second time for the installation of a second USB port.
➔ The installation procedure will be the same as described above for the first port.
➔
➔ After the installation the new COM port appears in the device manager (Figure 10.6)
Operation manual for PVPM devices PV-Engineering GmbH
9Installing the USB device driver 22
Figure 10.6
9.2Uninstalling the CDM driver
The driver can be removed using the Windows device manager: select the device in the list of devices with the
right mouse key and select “Uninstall”. This will delete the entries for this device from registry.
Operation manual for PVPM devices PV-Engineering GmbH
10Operation of the Software PVPM.disp 23
10 Operation of the Software PVPM.disp
For the installation of the software please refer to chapter8. After starting the software the following window
appears:
The displayed document is empty, all values are zero. Now you can open an exisiting data file, make a
measurement or retrieve already measured data from the PVPM. The new or received data will be stored to this
document and you are able to continue evaluating these data or save it to a hard disk file. For the evaluation
you can refer to the line diagram of measured data and the displayed results. The function “Export” lets you
export the data to different file formats for further evaluation in other software.
Buttons are grayed out, when they are not active. They change to normal state, when this function is
meaningful.
10.1 Main Menu File
10.1.1 Open
I-V-curves saved to disk before can be
reloaded using the „Open“ button. The
loaded data will overwrite the data in
memory. If you want to re-use the
current data later you will have to save
it to a disk file before loading different
data. The files have the default
extension .SUI.
If you click on the directory symbol
near the displayed directory in the
above dialogue window, you can
select the directory, whose measuring
data are to be displayed in the list.
In this list you can now either select an
entry by doubleclick (these data will
Operation manual for PVPM devices PV-Engineering GmbH
10Operation of the Software PVPM.disp 24
automatically be loaded and represented in the working window) or you can select some or all entries in the list,
which than may be deleted, exported or printed (→ test reports).
10.1.2 Save as...
Here you can save the current data to a disk file. Entries made in
field “Remarks” will be saved as well. The default file extension is
".SUI".
10.1.3 Browse
The “browse” window shows the thumbnail images of the
measured curves in the selected directory. This gives you a quick
overview over the existing measurements and you can detect a
special curve.
If you go with the mouse cursor above one diagram a small hint
window will display the significant values.
Double clicking the diagram will open the file for evaluation.
10.1.4 Export
The current data can be exported to disk files with several
different file formats which can be read by other programs (e.g.
spread sheet programs). You can use formats .XLS (Microsoft
Excel), .DBF (dBase III+) and three different ASCII formats. For
the selection of the right format please consult the manual of
the destination program. The files can contain either pure
measuring data (I-V-measuring points, temperature and
irradiation) or the results of computations. In the latter case the
results of several measurements can even be exported together
into one table. The data in the target table are represented line
by line.
Please select the desired export file format from the combo box.
Now enter a valid file name for the export file or select a existing
one with the button “Search”, then press OK.
The export files are now created and stored in the same
directory and under the same file name, but replaced file
extension (for example .XLS instead of .SUI). You can process
the exported files afterwards with a program of your choice.
Changes at the exported files do not have influence on the
original data.
10.1.5 Report
This button creates a measurement protocol containing the I-Vdiagram and measured as well as calculated values of the currently
loaded data. This report may be printed out or written to a PDF
document.
Please pay attention to the fact, that in some cases the page
orientation of the printer has to be changed before printing out. The
print uses the whole available printing area.
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10Operation of the Software PVPM.disp 25
The buttons on top of the preview window are from left to right:
• Starting printout
• Export to PDF
• Zoom factor
• Full page
• Page settings
• Page backward / forward
• Close preview
10.1.6 Printer Settings
Calls the windows standard dialogue “Printer Settings”. Select
the desired printer settings here.
10.1.7 Quit Program
Here you finish the program PVPM.disp. The current data are
not saved automatically but you will get an warning, that your
data should be saved before closing the program
Don’t forget:
Finish “Transfer” on the PVPM when you close PVPM.disp
Finish PVPM.disp always using one of the functions “Quit program”, the button “End” or the key combination
<ALT>-<F4>. It is also important, that you shut down your operating system properly, because else a data loss
might occur due to a write back cache etc.
10.2 Edit
This function is only active when the cursor is placed in a text edit field.
10.2.1 Cut
Cuts the marked text and moves it to the clipboard.
10.2.2 Copy
Copies the marked text and moves it to the clipboard.
10.2.3 Insert
Inserts the contents of the clipboard at the cursor position.
10.3 Extra
Switch the PVPM at first to „transfer“ (the solar generator under test as well as the sensors should, if necessary,
already be attached), before you use the following function “measurement”.
10.3.1 Start Measurement on PVPM / Button „Measure“
After starting the function the status line will display the message “Measurement processing– Please wait”.
The measurement will take up to 2 seconds. Directly after the measurement the measured values will be
transferred to the PC (process will be displayed in the status line) and the main window will display the values
and results. Now you can display the data in a diagram (chap. 10.4) or a list (chap. 10.5), export (chap. 10.1.3)
or save to file (chap. 10.1.2).
Important: When the measurement is initialized from the PC the data will not be stored in the PVPM!
Operation manual for PVPM devices PV-Engineering GmbH
10Operation of the Software PVPM.disp 26
If this message appears (see right), the cable to the
PVPM is not mounted properly or the function
“Transfer” on the PVPM is not activated.
10.3.2 Manage Files on the PVPM
At first the time settings of PC and PVPM will be compared – if
the time differs more than 5 minutes the application will ask
whether to correct the PVPM time with the PCs time setting. Now
the measurement data stored on PVPM will be displayed in a
list (the PVPM must be connected and online for this
function). Now you can select data sets from the list (even
more than one) and either transfer it to the PC for further
processing (Button “Get data”) or just delete it from the PVPM
(Button “Delete data”). You can set the destination directory
with a directory dialogue that appears if you click on the
directory symbol right of the displayed directory.
Caution: Carrying out the “delete” function can not be
withdrawn!!
When you select data transfer the data sets will be
transferred one after the other and the files are stored to
disk automatically using a file name that contains the date
and time of the measurement.
If the checkbox “Delete data after transfer” is checked a
dialog will appear after the transfer and ask, whether the
transferred data should be deleted now from the PVPMs
memory. Only if you are really shure that the data on the
PVPM will not be used any more you can answer “Yes” here
– the marked datasets will be deleted from the PVPMs
memory.
10.3.3 Synchronize PVPM to PC date/time
With this function the internal real time clock of the PVPM is
set to the PCs date/time.
10.3.4 Modify PVPM sensor database
You can connect different irradiance sensors to the PVPM.
Every sensor has its own calibration value, the PVPM needs
to know this value for correct operation. To make the
selection of a sensor simple during measurement you can
define a table with up to ten different sensors, its names
and calibration values, which will be stored in the PVPMs
permanent memory. So later on you just have to select the
appropriate sensor at the PVPM. The name you give the
sensor is more or less free selectable, but it should be short
and informative. It will be displayed later on on PVPMs
display and informs you about the actually selected sensor.
You can select the sensor at the PVPM via the menu
“Service” and “Select sensor”.
If you want to modify the sensors database the PVPM must
be connected and ready for data transfer. When you start
this function the database is loaded from PVPM and will be
stored back to PVPM when you close this form.
Operation manual for PVPM devices PV-Engineering GmbH
10Operation of the Software PVPM.disp 27
To enter a new value just select a free line in the list and enter the values in the edit fields below the table.
After finishing all entries, press OK. Now you will be asked whether the data should be transferred to PVPM.
You should select “Yes” here or your changes will be discarded.
10.3.5 Calculate internal series resistor
Basing on the nominal values of short circuit current, open
circuit voltage, and the I and V value of the MPP the
PVPM can calculate the effective solar cell curve and with
this the expected internal series resistance Rs. This
theoretical value can be compared to the actually
measured value and give a hint, whether there are
problems for example in the cabling.
10.3.6 Continuous measurement
This function allows the automatically timed measurement
controlled from the PC.
Set the desired time interval and the time unit (seconds,
minutes, hours) for the execution of the measurement and
the number of repetitions (0, if measurements shell be
repeated infinite).
After pushing the button “Start measurement” the
measurement runs automatically and can be cancelled by
the “Stop” button. The measured data will automatically
stored to files in the predefined directory. The file names
contain the date and time of the measurement.
The automatic measurement will stop, when the given
number of repetitions are finished or when the PVPM does
not answer.
10.3.7 Settings
All changes made here will be saved automatically and are
valid until the next change.
10.3.7.1 Serial Port
You can select the serial RS232 port (COMn:) used for PVPM
communications from the combo box
If the application can read the list of existing serial interfaces
from the Windows registry, the identifiers of the interfaces
defined there are represented in the combobox - together with
the reference whether this interface is available or not. In the
latter case this interface is already occupied by another
application. If the registry cannot be read (insufficient user
rights), the application will only display simple interface
identifiers like „COMx“. A selection of the interface is possible
anyway. If you do not know, to which interface the PVPM is
attached, you can use the button „look for“: that allows the
Operation manual for PVPM devices PV-Engineering GmbH
10Operation of the Software PVPM.disp 28
application to automatically try all available interfaces in order to establish the communication with the PVPM.
The PVPM must be attached to the PC and set to „transfer“. If the application receives an valid answer from a
PVPM, the search stops and the detected interface is used now for communication with the PVPM.
10.3.7.2 Working directory
The working directory is used in file open and file save dialogs and for the automatically saving of files. Select
here the directory which contains your measured data or to which the measured data should be saved to. This
listing is used also during the automatic data storage (data transfer of PVPM or continuous measurement) The
entry field has a button at its right side. Press this button to display a directory selection dialog.
10.3.7.3 Dialogue language
PVPM.disp supports the dialog languages English and German. The language can be changed during program
execution. Just select your desired language from the combobox “dialog language”. After you close the dialog
box the labels of PVPM.disp will be displayed in the selected language. PVPM.disp will remember the language
setting.
Please note, that the standard and system dialogs will always be displayed in the language of the current
windows version!
10.3.7.4 Temperature correction
Sometimes it may be useful to add a correction factor to the measured temperature values. In this case you can
enter the factor here. The factor will be added to the measured temperatures: enter a negative value, if you want
to decrease the temperature. If the factor is not zero the displayed temperatures will be displayed like “xx.x°C
korr.” to remember you, that this value is not the measured one. The altered value will not be stored.
10.3.8 Firmware-Update
This function is for service purposes only and not documented here.
10.4 Diagram
After loading the data of a measurement the diagram will be displayed.
Operation manual for PVPM devices PV-Engineering GmbH
10Operation of the Software PVPM.disp 29
In the diagram you can draw up a rectangle with the mouse cursor (from top left to bottom right with pressed left
mouse button). This marked region then will be displayed zoomed. To come back to normal view just click onto
the drawing region. If you press the Shift-Key and the right mouse button in the viewing area and keep the
buttons pressed, you can move the diagram area in every direction (pan).
A modification of the data is at present only possible in the fields irradiation and temperature: a doubleclick on
the displayed value opens a dialogue box, in which you can enter the new value. The changed values remain, if
the file is now stored to disk again.
Into the field „remark “you can write your notes. These are stored along with measured data. The first line of the
remarks is used as title of the diagram.
With the button “Clipb” you can copy important data in a tabular
form to the clibboard and then for example into MS Excel.
So you can easily setup a table of different measurements and
compare them using a software other then PVPM.disp without
exporting the files.
Clicking the viewing area with the right mouse button lets a
popup menu appear. The same functions are available if you use the
buttons on left of the diagram region. The following options are available:
10.4.1.1 MPP display on/off (button “Show MPP”)
You can select whether the MPP shell be displayed in the diagram or not.
Note: The displayed MPP is not exactly one of the measured data points
but will be interpolated and thus more precise
10.4.1.2 Theo. curve on/off (button “Eff. curve”)
You can select whether the effective solar curve will be calculated from the data and whether this curve will be
displayed additionally to the measured curve. Depending on the measured data this calculations may be
impossible.
10.4.1.3 Show STC curve on/off (button “STC curve”)
If a effective solar curve can be calculated it can be converted to STC conditions as well and also be displayed.
Here you can switch the display of this curve on or off. The axis scale will be corrected automatically (if
necessary).
10.4.1.4 Show power on/off (button “
You can select whether the power graph is displayed or not.
10.4.1.5 Zoom on/off (button “Zoom max”)
The Y-scaling is changed in such a way that the diagram uses the complete Y
axis.
10.4.1.6 Legend on/off (button “Legend”)
A legend of the displayed graphs can be displayed optionally. Here you can switch
the display of the legend on or off.
10.4.1.7 Copy to clipboard (button “Clipb”)
Copies the actual diagram to the clipboard, you can enter this copy for example
into a word document.
10.5 Results / Lists
By clicking the option ”Display data list“ in the local menu a window with the
measured characteristic data (in a list) appears.
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10Operation of the Software PVPM.disp 30
10.6 Help (not yet implemented)
10.6.1 Contents
Displays the contents of the online help.
10.6.2 Search
Here you can search within the online help.
10.6.3 Use help
Basic hints for the windows help system.
10.6.4 Info
Displays an information window with the version number of the program.
Operation manual for PVPM devices PV-Engineering GmbH
11Hardware Information 31
11 Hardware Information
(Changes reserved)
Build in a stable metal case with carrying handle and tough front panel.
11.1 Measuring Unit:
Sampling rate max. 100kHz
Resolution 0.01V - 0.25V, 0.005A – 0.01A (depending on sel. range)
Accuracy of the a/d converter 0.08% of FSR±1 LSB
Peak power measurement: ±5%
Reproducement: ±2%
Duration of single measurement: 20ms up to 2 seconds
Phox sensor with integrated Pt1000 sensor measures irradiance and cell temperature. Other commercially
available sensors as e.g. ISET-Sensor® can be connected using a reliable cable connection.
Pinout of sensor plugs:
10.2 Pin allocation of the sensor connections:
Allocation until 2003
Irradiance: 5pin female chassis socket B605 (plug:M605)
Pin 1 = not used
Pin 2 = V+
Pin 3 = not used
Pin 4 = VPIN5= not used
Temperatur: 6pin female chassis socket -B606 (plug:M606)
Pin 1 = +Current source (~1 mA)
Pin 2 = +Pt1000
Pin 3 = not used
Pin 4 = - Pt1000
Pin 5 = - Current source
Pin 6 = not used
Allocation 2003 - 2008:
Temperature: 4 pin female chassis socket Lumberg KFV40 (plug SV40)
Pin 1 = Current source + (~1 mA)
Pin 2 = Pt1000 +
Pin 3 = Pt1000 Pin 4 = Current source - (~1 mA)
Irradiance: 3 pin female chassis socket Typ Lumberg KFV30 (plug: SV30)
Pin 1 = V+
Pin 2 = not used
Pin 3 = V-
Allocation starting from 2008:
Temperature (external): 4 pin female chassis socket Lumberg KFV40
Pin 1 = Current source + (~1 mA)
Pin 2 = Pt100 +
Pin 3 = Pt100 Pin 4 = Current source - (~1 mA)
Irradiance: 8 pin female chassis socket Lumberg KFV81 (plug: SV81)
Pin 1 = Irradiance+
Pin 2 = Pt1000 (reference) +
Pin 3 = IrradiancePin 4 = Current source + (~1 mA)
Pin 5 = Current source - (~1 mA)
Pin 6 = do not connect
Pin 7 = do not connect
Pin 8 = Pt1000 (reference) -
Operation manual for PVPM devices PV-Engineering GmbH
11Hardware Information 32
Measuring ranges of the PVPM:
Standard
Meas.Range
Voltage
[V]
Current
[A]
Tempe-
rature
Irradiance
PVPM2540C 25/50/100/250 5/10/20/40
-100°C +120°C
0 - 1300 W/m2
PVPM6020C 25/100/300/600 2/5/10/20
PVPM1000C 25/100/500/1000 2/5/10/20
PVPM1000C40 25/100/500/1000 2/5/10/40
Peak power: up to 40kW
Ranges for current and voltage can be combined in any order
An optimal range is selected by the device automatically.
11.2 Calculation Unit:
Low power industrial PC
Flash disk 32MB (can store several 1000 results)
Watchdog, real time clock
No mechanically moved parts like hard disk, fan etc.
11.3 Display:
LC display with CCFL backlight, resolution 256 x 128 pixels,
monochrome, high contrast through white on black display
sunlight suitable
11.4 Operation:
Menu driven with few keys mounted to the front panel
Operation and evaluation alternatively by Windows software, connected via RS232 (19200Bd)
Cable RS232 null-modem 2 x 9Pin Sub-D female
connected: 1-4/2-3/3-2/4-1/5-5/7-8/8-7/9-9
11.5 Power Supply:
Li-Ion battery 11.25V, 8.85Ah, 99.6Wh (continuous operation about 8h),
(tested acc. UN T1-T8 transportation tests, compliant UN 38.3 / PSE / RCM)
Optional: Lead-acid-accumulator 12V/3.4Ah or 12V/7.2Ah.
External power supply wide range input (90-263Vac, 47-63Hz, 40W, Out 16Vdc)
Integrated battery charger with overload protection for accumulator
Display of battery state with LEDs at the front panel
11.6 Dimensions
Width: 48cm, height: 16cm, depth: 34cm
11.7 Operation Conditions:
Temperature: Humidity
Operation: 0°C to 40°C 10% to 90% (not condensing)
Storage: -10°C to 85°C 5% to 95%
11.8 Optionally available:
• Software for MS-Windows for the automatic generation of test reports
• test leads e.g. with length 15m or 25 m (different lengths on request)
Operation manual for PVPM devices PV-Engineering GmbH
12List of symbols 33
12 List of symbols
AM Air-Mass, relative way length for the sunlight through the atmosphere of the earth
E Irradiance
E
0
1000 W/m2 (Irradiance at STC)
E
eff
Irradiation, measured with a crystalline PV cell
FF Fill factor: relationship Isc*Uoc/(Ipmax*Upmax), for crystalline modules about 0.75 = 75%, smaller values can
indicate insufficient power
I Current
I
m
Short form for Ipmax
I
ph
Photo current
I
pmax
Current at Pmax
I
pmax0
Current at Pmax0 (at STC)
I
sc
Short circuit current
I
sc0
Short circuit current (at STC)
MPP Maximum Power Point, other description for P
max
NOCT Nominal Operating Cell Temperature,
cell operating temperature at T
ambN
and EN.
P Power
P
max
Recent maximum power of a solar cell
P
pk
Peak Power, maximum power of the solar cell at STC
PV Photovoltaic
R Resistance
R
pv
Photovoltaic resistance (calculation factor only, no real resistor)
R
s
Series internal resistance, apart from resistances in the module e.g. cable/plug resistance, intrinsic resistance of
crystalline modules about 0,5 ohms, of thin film cells 2-3 ohms. In strings RS is determined strongly by the
resistances of the cables.
R
p
Parallel internal resistance
STC Standard Test Conditions fE0=1000W/m2, AM1.5, T=25°C
T
mod
Current module temperature (at the back side of the module)
U Voltage
U
m
Short form for Upmax
U
oc
Open circuit voltage
U
oc0
Open circuit voltage (at STC)
U
pmax
Maximum power voltage
Operation manual for PVPM devices PV-Engineering GmbH
13Reasons for decreased Power and Yield of PV Generators 34
13 Reasons for decreased Power and Yield of PV Generators
Error To be detected by: Possible reason / workaround
System configuration chosen inadequately Measurement of mismatch losses Design fault / redesign
Erroneous match of strings and inverter Fed power too low for location and in
relation to nominal generator power
Design fault / redesign, replacement of inverters
Cast shadow I-V-curve shows "bulge", peak power too
low, optical check
Barrier near module (e.g. tree, chimney, birds
excrements) / remove barrier
Diffuse shading (may be hardly visible for
bare eye!)
I-V-curve is "impressed", peak power too
low
Barrier in some distance to module (high portion of
diffuse light) / remove barrier
Corrosion at plugs and cables Serial internal resistance Rs too high Material, planning or mounting fault / Clean,
replacement
De-lamination of cell embedding see shading diffuse Material / production fault / Replacement
Bubbling in resin see shading diffuse Material defect / replacement by supplier
Transparent covering material (glass,
plastics, resin) becomes blind
Optical check, peak power too low (s. a.
shading diffuse)
Material defect / replacement by supplier
Discolouring of the transparent cover
material (plastics, resin)
Optical check, peak power too low (s. a.
shading diffuse)
Material defect / replacement by supplier
Intrusion of water into the laminate, leads to
other problems (corrosion, discolouring)
Optical check Material or production fault / replacement by supplier
Faults in the crystalline structure of single
cells (hot-spot effect)
see shading diffuse Production fault / reduction of price, replacement by
supplier
Pollution of the module by dust Optical check, see shading diffuse High dust impact. Check modules periodically /
cleaning
Moss / algae on module, birds excrements see cast shadow Normal for several regions / cleaning
Broken cover glass, leads to other problems
(corrosion, discolouring)
Optical check Hailstorm, mounting or transportation fault /
replacement by supplier
Break of single cells in module Peak power too low, possibly deformation
of I-V-curve
material defective / replacement by supplier
Improper electrical connections in module Peak power too low, internal series
resistance Rs higher than calculated
Fault in soldering, material defective, corrosion /
replacement by supplier
Bypass diode defective (short circuit) Peak power of strings reduced by module
power
Overload, material defective / repair
Bypass diode mounted the wrong way Peak power of strings reduced by module
power
Mounting fault / repair
No bypass diode mounted or diode defective
(high resistance)
Shading of one module reduces power of
the string dramatically
Planning / mounting fault / repair
Dimension of cabling too small Internal series resistance Rs too high Design fault / replacement of cables
Cable defective (e.g. break, corrosion) Internal series resistance Rs too high Mounting fault / repair
Insufficient mounting of connectors Internal series resistance Rs too high Mounting fault / repair
Corrosion in screwed or plugged connectors Internal series resistance Rs too high Mounting fault / cleaning, repair
Insufficient preselection of modules
regarding peak power
Peak power of plant too low Planning or mounting fault (match losses) / New
preselection of the modules after peak power
measurement
Insufficient preselection of single cells
regarding power during module production
Peak power of module too low Production fault / reduction of price, replacement by
supplier
Short circuit between cells in the module Peak power of plant too low, open circuit
voltage Uoc too low, shape of curve
Production fault / replacement by supplier
Fabrication tolerances in cell production Peak power too low, shape of curve Production fault / reduction of price, replacement by
supplier
Please notice: some faults may appear only under special operating states, e.g. high module temperatures.
This compilation does not claim to be complete or free of failures.
Operation manual for PVPM devices PV-Engineering GmbH
14I-U diagram: Explanation 35
14 I-U diagram: Explanation
The diagrams represented in the following are from the books (with friendly permission of the 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 . 2005
fig: Current voltage characteristics with an irradiation of 1000W/m2 and different irradiations
fig: Current voltage characteristics with an irradiation of 1000W/m2 and different cell temperatures
fig: Construction of the module characteristic from the cell characteristics (irradiance E = 400W/m2, T = 300K)
Operation manual for PVPM devices PV-Engineering GmbH
14I-U diagram: Explanation 36
fig: Partial construction of the module characteristic with a part-shaded cell
fig: Solar cell characteristic of a polycrystalline cell over the whole voltage range with different shading degrees
(E0 = 1000W/m2, T = 300K)
fig: Construction of the module characteristic of the module SM50 with a 75% shaded cell (E = 407W/m2, T =
300k)
Operation manual for PVPM devices PV-Engineering GmbH
14I-U diagram: Explanation 37
fig: Solar module characteristic: (1) fully illuminated; (2) a cell completely covered, with bypass diode over the
cell; (3) with bypass diodes over half cell string; (4) without bypass diode
fig: Simulation of different module characteristics with bypass diodes over a different number of cells (E =
1000W/m2, T = 300K)
fig: Comparison of simulation and measured values by the example of the module SM50, 36 cells with two
bypass diodes over in each case 18 cells. A cell was differently shaded, the others was fully illuminated (E =
574W/m2, T = 300K)
Operation manual for PVPM devices PV-Engineering GmbH
14I-U diagram: Explanation 38
fig: Module characteristics of the module SM50 without bypass diodes, first cell differently shadows (shading
degree of SZI = 0..1), E = 407W/m2, T = 300K
fig: Resulting characteristic during series connection with bypass diode
Operation manual for PVPM devices PV-Engineering GmbH
15Sample Curves 39
15 Sample Curves
Operation manual for PVPM devices PV-Engineering GmbH
Partly shading
0,0
0,5
1,0
1,5
2,0
0,0 5,0 10,0 15,0 20,0 25,0
V/Volt
I/Ampere
Measured characteristic
Shading and mismatch
0,0
0,2
0,4
0,6
0,8
1,0
1,2
1,4
0,0 100,0 200,0 300,0 400,0 500,0 600,0
U/Volt
I/Ampere
Reference characteristic
Measured characteristic
Shading and match losses
0
0,5
1
1,5
2
2,5
3
0 10 20 30 40 50
V/Volt
I/ A m pe re
Comparison curve
Characteristic with errors
15Sample Curves 40
Operation manual for PVPM devices PV-Engineering GmbH
Result without errors
0,0
0,5
1,0
1,5
2,0
2,5
3,0
3,5
0 5 10 15 20 25
V/Volt
I/Ampere
Monocrystalline <--> Amorphous
0,0
0,2
0,4
0,6
0,8
1,0
0,0 2,0 4,0 6,0 8,0 10,0 12,0 14,0 16,0
V/Volt
I/ A m p ere
Monocrystalline Module
aSi - Module
Comparison characteristic
Small R - e.g.: match loss
p
0,0
0,5
1,0
1,5
2,0
2,5
3,0
3,5
4,0
4,5
0,0 10,0 20,0 30,0 40,0 50,0
V/Volt
I/Ampere
Measured characteristic
15Sample Curves 41
Operation manual for PVPM devices PV-Engineering GmbH
High loss due to shading
0,0
0,5
1,0
1,5
2,0
2,5
3,0
0 10 20 30 40
50
V/Volt
I/Am p e re
Characteristic without shading
Characteristic with 2 shaded regions
Comparison curve
Partly shading
0,0
0,1
0,2
0,3
0,4
0,5
0,6
0,0 5,0 10,0 15,0 20,0 25,0
V/Volt
I/Am p e r e
Characteristic with errors
16Glossary 42
16 Glossary
16.1 Azimuth (ß) and elevation (α)
For the optimal use of solar radiation the modules and collectors are arranged in a way that allows a preferably
large solar yield. In this context the incidence angle of the sun, but also the azimuth and the elevation of the
modules and collectors play a certain part. The azimuth angle specifys the angle between the orientation of the
modules or the collectors and the exact adjustment to the south. The elevation means the angle of the modules
from the horizontal. Studies have approved that PV plants with an azimuth of 0° and an elevation of about 30°
are aligned in the best possible way. Nevertheless small deviations are not implicitly problematic: with the
orientation to south-east or south-west still around 95% of the possible yield can be realised. Larger plants are,
to enhance the profit, tracked towards the sun by electric motors. (see also → tracking).
For measurements with the PVPM the accurate alignment of the irradiation sensor with the modules is very
important. The sensor has to 'see the same part of the sky' as the modules. At the same time it is to be taken in
account that by reflections from the environment (by house walls or other light surfaces) the incidence of light on
the modules and the sensor can be intensely influenced.
16.2 Slope
When planning a solar plant the question for the slope of the roof (e.g. on the internet) leads to wrong
conclusions, as it is not the slope of the roof - but the slope of the collectors that is important. Through an
appropriate elevation and mounting the collectors can be brought into a good position even if the slope or the
adjustment of the roof are disadvantageous.
For the optimum use of solar radiation the sun rays should fall on the collectors in a right angle. The optimum
elevation and angle of setting-up correspond to the geographical latitude of a location. (Freiburg is located on
the 48. degree of latitude; Lübeck on the 54. degree of latitude) Since the sun stands higher in the summer than
in the winter it depends on in which time of the year the solar equipment is predominantly being used.
Photovoltaic plants for example carry the highest yield on long summer days, while thermal solar plants are
taken to support heating installations in the winter. As a rule of thumb for the elevation of the collector you can
use latitude minus 10° in the summer and latitude plus10° in the winter is considered to be effective.
Not to be confused with the slope is the orientation (azimuth angle) to the south. In practice smaller deviations
from the optimum slope or orientation decrease the productivity insignificantly. A temporary shading of the
collectors impairs the effectiveness far more.
16.3 DC
Short form for direct current, as it is being produced by solar cells and modules and stored by a battery. If many
solar cells are connected in series to a module, the single voltages add.
16.4 Degradation characteristic
The degree of efficiency of amorphous solar cells declines at the beginning of the phase of irradiation rapidly
and first stabilises after a time between 3 weeks and 5 month. Besides this irreversible degradation, another
reversible degradation is taking place. That means that amorphous solar cells have a better degree of efficiency
in spring-/summer-time compared to autumn/winter.
16.5 Direct radiation/ diffuse radiation
Direct radiation (forces casting shadows) meets a surface without scattering through components of the earth'
atmosphere. Through scattering (fog, haze, clouds) diffuse/ indirect radiation develops.
16.6 Generator
Lat.: producer. Generators dissipate other forms of energy into current. In the photovoltaic the entirety of the
interconnected photovoltaic modules is characterised as generator or as solar power plant.
Operation manual for PVPM devices PV-Engineering GmbH
16Glossary 43
16.7 Global/total radiation
Denotes the irradiation of the sun towards a horizontal surface on the earth. It is composed of the direct
irradiation and the reflected irradiation (e.g.: by snowfields).
16.8 Short-circuit current of solar cells
Current that circulates, if the positive and the negative pole of the PV generator is connected, that means when
there is no resistance or load between the two poles. It is not dangerous for the generator, but a disconnection
might cause a light arc which is dangerous for health and environment!
16.9 Mismatching
The connection of weak and better modules in one string, whereby the weaker module in a row affects the
current of the string and in that way impairs the total power.
16.10 MPP
Denotes the point of maximum power in the I-V-curve. A solar cell has a point of maximum power in its I-Vcharacteristic depending on the current irradiation, temperature and light spectrum. The product of usable
voltage and corresponding current of a solar cell does not always have the same value.
16.11 Tracking
The module-surfaces of 'trackers' follow the state of the sun during the course of the day. The tracking can be
carried out by one or two axis, whereby the production of two-axle tracking is more effective. Compared to a
permanent south orientated plant the annual yield increases with up to approximately 30%. Tower mounted,
tracked and elevated solar plants allows the choice of an optimum position. That way, irrespective of structural
circumstances, a panning range of 180° free from shadowing is made possible.
16.12 Peak Power
To guarantee the comparability of power output of PV-modules it was generally accepted that the nominal power
of a module is measured at a cell temperature of 25°C, an irradiation of 1000W/m² and a spectrum of light
according to AM=1,5 and named “Peak Power” (some producers also characterise it as “nominal value”). The
boundary conditions are called Standard Test Conditions (STC).
Unfortunately the natural appearance of the STC is rare, that is why the relevant measurements so far were
only realised in laboratories, where the conditions had to be produced under high effort.
With the new methods of the Peak Power measuring devices and curve tracers series PVPM, it is now possible
to realise these measurements under current ambient conditions - the measuring device automatically converts
the results to STC. Thus after just one I-V-curve measurement the Peak Power Ppk, the internal series
resistance Rs and the parallel resistance Rp are available as a result. This result is, in comparison with the
specified value, an indication for different errors in the PV-Generator, that is how they simplify quality control and
error detection.
16.13 Performance Ratio
In the photovoltaic the “Performance Ratio” means the ratio of available profit and specified value of a plant.
The Performance Ratio is the quotient of the yield of alternating current and nominal yield of generator DC. It
indicates what proportion of the current produced by the generator is in real terms available. PV-plants of high
capacity reach a Performance Ratio of more than 70%. The Performance Ratio is often denominated as quality
factor (Q). Solar modules on the basis of crystalline cells reach a quality factor of 0,85 to 0,95, network coupled
plants average out at 70% to 75%.
16.14 Phox-sensor
The principle of the Phox (PHOtovoltaic LuX) -sensor is that the current from the photovoltaic cell, which is
almost linear to the irradiation of the cell, is conducted through a so called shunt, a particular precision resistor.
The voltage which drops at the resistor is linear depending from the irradiation and can easily be measured with
Operation manual for PVPM devices PV-Engineering GmbH
16Glossary 44
the measuring device. Disadvantage: every sensor has got to be calibrated separately: the calibration value is
the voltage the sensor delivers, when it is exposed to the Standard-Test-Conditions (STC).
16.15 Internal series resistance
This resistance results physically from the material being used for the production of the module as well as from
its cable connections. For crystalline modules it amounts about 0.5Ohm, for thin-film modules more than 2
Ohm.
The measurement of the internal series resistance is latterly possible with the measuring devices series PVPM.
For that purpose just one I-V-curve of the module has to be measured. With this data the device automatically
calculates the Rs as well as the Ppk and the parallel resistance Rp.
The theoretically expected value of the internal series resistance Rs can be calculated. The calculation can be
carried out with the software PVPMdisp, if the STC characteristic values for Voc, Isc, V
pmax
and I
pmax
of the module
are known.
The calculated Rs can be compared to the measured value which the PVPM measuring device displays after
the I-V-curve measurement. If the measured value is too high the wiring should be checked for burst, corrosion,
connection errors or wrong dimensions.
16.16 Solar Constant
Denotes the solar radiation that hits vertically on a surface outside the atmosphere. s=1,37 kW/m². Outer space
the solar radiation is almost constant; on earth it fluctuates in the course of daytime or time of the year and
varies depending on latitude and weather. The maximum value on earth lies between about 0,8 and 1,2 kW/m².
In annual means the irradiation in Germany amounts according to region between 850 and 1100 kWh/m².
16.17 Solar irradiation / insolation
The solar irradiation consists of the radiation which is directly from the sun and divers indirect proportions.
Those are radiation reflected by the environment, e.g. snowfields reflect very intensive the radiation of the blue
sky, and other diffuse radiation. For the exact calculation of the energy that hits a surface the angle between the
sunlight and the surface is decisive. It changes according to time of year and time of the day. Informations about
the exact calculation are offered at different internet addresses. The radiation is delimited by several factors;
even if the sky is beaming blue only around 90% of the total solar energy arrives on earth.
Standard Test Conditions
To make the power of PV modules comparable they always are measured at the same conditions: according to
IEC60904-3 the Standard Test Conditions (STC) consists of an irradiation of 1000W/m2, a light spectrum
according to AM=1,5 as well as a module temperature of 25°C. Since these requirements are hardly to find
under natural sunlight, methods were developed to calculate the STC values of PV modules from I-V-curves
measured under ambient conditions.
16.18 Current-Voltage-Characteristic
The Current-Voltage-Characteristic of a PV-Generator
shows different qualities and problems of the
generator and is the basis of a few substantial specific
values.
For example partially or hard shading will modify the
characteristic as well as high internal series resistance
and defective or missing bypass diodes.
Besides short circuit current Isc and open circuit
voltage Voc, voltage and current at the maximum power
point (MPP) I
pmax
and V
pmax
as a result you get the fill
factor FF:
FF = Isc*Voc/(I
pmax*Vpmax
)
The I-V-curve is the basis for the calculation of the effective solar curve, which then allows the determination of
the peak power Ppk and the internal series resistance R
s.
Operation manual for PVPM devices PV-Engineering GmbH
High loss due to shading
0,0
0,5
1,0
1,5
2,0
2,5
3,0
0 10 20 30 40
50
V/Volt
I/A mp ere
Characteristic without shading
Characteristic with 2 shaded regions
16Glossary 45
16.19 Four-wire measurement (Kelvin measurement)
If an current flows through an electric conductor a
voltage will drop due to the specific resistance of the
conductor. This interrelationship is known as Ohm's law
(R=V/I). The voltage at the and of the wire is lower as at
the beginning of the wire (the point of measurement).
To get the exact voltage at the point of measurement
anyway the four-wire method is used: here the current
flows through two of the four wires where the input
resistance of the measurement device is low (here
voltage will drop on the wire), the voltage is measured over the other two wires that are connected to a high
resistance input (here nearly no current flows and thus no significant voltage drops).
16.20 Efficiency
General: Relationship of the usable to the assigned energy. For illustration: Conventional bulbs transform about
3 - 4% of the assigned energy into light, photovoltaic generators respectively solar cells at present reach an
efficiency of 11 - 17%, thermal solar plants between 25 and 40% regarding the solar radiation.
Operation manual for PVPM devices PV-Engineering GmbH
V
A
R
L
+
-
17Appendix A 46
17 Appendix A
17.1 - Indicator lights in the front panel
LED Battery type Function Remark
Charge Lead-Acid Batt. Lights up, when battery is charged Not used with Li-Ion Battery
State of charge
(3 color LED)
Lead-Acid Batt. Red: battery discharged (charge at once!)
Green: battery ready
Yellow: battery charged completely *)
Operation not possible!
Operation possible
Operation possible
Li-Ion Battery Blinking Red: battery nearly discharged (charge!)
Red: battery is charged
Green: charge is nearly finished
Off: charge is finished
Operation time left max. 30 minutes
Operation is possible
Operation is possible
Operation is possible
External Power Both On, when an external power supply is connected, the internal battery will be charged autom.
On Lights up, when device is powered on (readiness is displayed on LCD screen)
17.2 Speaker signals:
PVPM reports errors and operating conditions by speaker signals: in the following deep sounds are represented
by „da“, higher sounds as „dee“.
audio declaration reaction
click „Keyboard-click “when
pressing the transparency
keyboard one simulates
--
dee During the operation: signals
the start or the end of a
function
--
da generally in the case of
errors
Consider, which error the
device shows on display
dee If this signal is given with the
first appearance of the main
menue, the device is ready
for operation
Device is ready
da or da-da Shortly after switching on:
CPU Is working
--
da or da-da
followed by dada
Shortly after switching on :
probably the litium buffer
batttery of the CPU is empty.
Customer service
necessary
dee-dee-da-da The LC-display cannot be
addressed.
Switch the equipment out,
after short waiting period
on again. If the error
arises once more:
Customer service
necessary
dee dee After a transfer of a file to the
PVPM (only service mode)
File transfer O.K
da-dee-da After a transfer of a file to the
PVPM (only service mode)
File transfer not o.k .
destination file is deleted
dee-dee-deedee
During measurement:
irradiation varies or is too
small
Measurement is
inaccurate and must be
rejected
dee-dee-deeda-da-dadee-dee-dee
A/D converter could not be
initialized
Customer service
necessary
Operation manual for PVPM devices PV-Engineering GmbH
17Appendix A 47
Konformitätserklärung
Declaration of Conformity
Operation manual for PVPM devices PV-Engineering GmbH
17Appendix A 48
EG-Konformitätserklärung im Sinne der EG-Richtlinien
EC Declaration of Conformity as defined by the EC Directives
Der Hersteller / PV Engineering GmbH
The manufacturer Hugo-Schultz-Str. 14
58640 Iserlohn
Deutschland/Germany
erklärt hiermit in alleiniger Verantwortung, dass folgende Produkte / herewith certifies in sole responsibility that
the products
Produkt: I-U-Kennlinienmessgerät
Product: I-V-Curve tracer
Typen: PVPM2540C
Types: PVPM6020C
PVPM1000C
PVPM1000C40
Baujahr: 2009
Year of manufact.:
auf das sich diese Erklärung bezieht, ausschließlich für die Messung der I-U-Kennlinie von Photovoltaikmodulen
und -strings verwendet wird und den Anforderungen der EG-Richtlinien
to which this declaration refers to are exclusively used for the measurement of the I-V- curve of PV modules or
strings and are in conformity with the directive(s)
• Niederspannungsrichtlinie 2006/95/EG
• EMV-Richtlinie 2004/108/EG
entspricht.
Folgende harmonisierte Normen wurden angewandt:
The following standards are in use:
EN 61010-1, EN 61000-3-2, EN 61000-3-3 EN 61326-1, EN 61326-2-2
Eine technische Dokumentation ist vollständig vorhanden. Die zum Messgerät gehörende Betriebsanleitung
liegt in der Originalfassung vor.
A technical documentation is completely available. The operation manual of the device is available in its original
version.
Iserlohn, 01.10.2009 Dipl.-Ing. Klaus M. Schulte
(Ort/Place, Datum/Date) Geschäftsführer/Managing Director
Operation manual for PVPM devices PV-Engineering GmbH
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