Gossen MetraWatt PROFITEST PV 1500 User manual

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

2GMC-I Messtechnik GmbH
Inhalt Seite Inhalt Seite
1 License Agreement .......................................................... 3
2 Introduction ...................................................................... 4
3 Use for Intended Purpose ................................................. 4
4 Safety Precautions ........................................................... 4
4.1 Device Safety Features and Precautions ..........................................4
4.2 Battery Pack Safety Precautions .....................................................5
5 Warnings .......................................................................... 5
6 Operating the PROFITEST PV 1500 ................................... 6
6.1 Controls and Connectors ................................................................6
6.2 General Notes ...............................................................................6
6.3 Connecting Peripheral Devices .......................................................6
6.4 Power Supply ................................................................................7
6.5 Connection to a PC ........................................................................7
6.6 Connecting the Solar Generator ......................................................7
6.7 Measured Value Transducers for Temperature and
Irradiation ......................................................................................7
6.8 Switching the Instrument On ..........................................................8
6.9 Buttons .........................................................................................8
6.10 Measurement ................................................................................9
6.10.1 Entering Module, Customer and System Data ..................................9
6.10.2 Start Measurement ......................................................................10
6.10.3 Archive .......................................................................................10
6.10.4 Transfer ......................................................................................10
6.10.5 Results .......................................................................................10
6.11 Messages ...................................................................................10
7 1500 V / 20 A Load Disconnector .................................. 11
8 Influences on Measuring Accuracy ................................ 11
9 Installing PV Analyzer Transfer Software ....................... 12
10 Installing the USB Device Driver (CDM) .......................... 13
10.1 Installation via “Found New Hardware” ..........................................13
10.2 Uninstalling the CDM Driver ..........................................................14
11 Using PV Analyzer Transfer Software ............................ 15
11.1 The File Menu .............................................................................15
11.1.1 Open ..........................................................................................15
11.1.2 Save as ... ...................................................................................15
11.1.3 Browse .......................................................................................15
11.1.4 Export .........................................................................................16
11.1.5 Report .........................................................................................16
11.1.6 Analysis ......................................................................................17
11.1.7 Printer Setup ...............................................................................17
11.1.8 Exit .............................................................................................17
11.2 Edit .............................................................................................17
11.2.1 Cut .............................................................................................17
11.2.2 Copy ...........................................................................................17
11.2.3 Paste ..........................................................................................17
11.3 Extras .........................................................................................17
11.3.1 Start Measurement at the PROFITEST PV 1500
(“Trace Curve” button). ................................................................17
11.3.2
Managing Files at the PROFITEST PV 1500 (“Data Transfer” button) .......... 18
11.3.3 Transfer Date and Time to the PROFITEST PV 1500 .....................18
11.3.4 Continuous Measurement ............................................................18
11.3.5 Editing the PROFITEST PV 1500 Sensor Database ........................19
11.3.6
Managing Modules at the PROFITEST PV 1500
(“Module List” button) ........................................................................19
11.3.7 Managing Measuring Tasks at the PROFITEST PV 1500
(“Measuring Tasks” button) ................................................................19
11.3.8 Calculating Internal Series Resistance Rs ......................................19
11.3.9 Customer Database .....................................................................20
11.3.10 Module Database ........................................................................20
11.3.11 Settings ......................................................................................20
11.3.12 Setting Temperature Offset ..........................................................21
11.3.13 Firmware Update .........................................................................21
11.4 Using the Graphic Interface ..........................................................21
11.4.1 Measuring Points On/Off (“Measuring Points” button) ....................21
11.4.2 MPP On/Off (“Show MPP” button) ................................................21
11.4.3 Display Theoretical Curve On/Off ..................................................21
11.4.4 Display Characteristic STC Curve On/Off .......................................21
11.4.5 Power Display On/Off ...................................................................21
11.4.6 Key On/Off (“Key” button) .............................................................22
11.4.7 Stretch On /Off (“Max. Zoom” button) ...........................................22
11.4.8 To Clipboard (“Clipboard” button, main toolbar) .............................22
11.5 Results .......................................................................................22
11.6 Help ...........................................................................................22
11.6.1 Contents .....................................................................................22
11.6.2 Search ........................................................................................22
11.6.3 Using Help ..................................................................................22
11.6.4 Info .............................................................................................22
12 Technical Data ............................................................... 23
12.1 Unit of Measure ...........................................................................23
12.2 Sensor Connection Pin Allocations ................................................23
12.3 Computer Unit .............................................................................23
12.4 Display .......................................................................................23
12.5 Operation ....................................................................................23
12.6 Power Supply ..............................................................................23
12.7 Dimensions .................................................................................23
12.8 Operating Conditions ...................................................................23
12.9 Optionally Available .....................................................................23
13 List of Symbols Used in Formulas .................................. 24
14 Causes of Reduced Output and Yield ............................. 25
15 Characteristic IU Curves: Contexts ................................. 26
16 Sample Characteristic Curves from Actual
Practice (source: PVE) ..................................................... 29
17 Glossary ......................................................................... 30
18 Appendix A ..................................................................... 32
18.1 Charge Level Indicator for Integrated Rechargeable Battery ............32
18.2 Acoustic Signals ..........................................................................32
19 Maintenance and Recalibration ..................................... 33
19.1 Return and Environmentally Sound Disposal ..................................33
19.2 Recalibration ...............................................................................33
19.3 Repair and Replacement Parts Service
Calibration Center and Rental Instrument Service ..........................33
20 Product Support ............................................................. 34

GMC-I Messtechnik GmbH 3
1 License Agreement
The following conditions apply to the use of GMC-I Messtechnik
software by the end user, hereinafter referred to as “licensee”.
The subject matter of this agreement if the computer program
included on the data storage medium, the program description
and the instructions for use, as well as all other associated printed
materials, hereinafter referred to as “software”.
We draw the user’s attention to the fact that it is not possible, with
the current state-of-the-art, to produce computer software such
that it functions in an error-free fashion in all applications and
combinations. The subject matter of the license agreement is thus
once piece of software only, which is generally usable as set forth
in the program description and instructions for use.
For the duration of this agreement, GMC-I Messtechnik GmbH
grants you the non-exclusive personal right (hereinafter referred to
as “license”) to use the accompanying copy of GMC-I Messtech-
nik software on a single computer (i.e. with a single central pro-
cessing unit), and at a single location only. If this single computer
is a multi-user system, the right to use the software applies to all
users of the system.
As the licensee, you may transmit software in physical form (i.e.
stored to a data storage medium) from one computer to another,
on the condition that it will always be used on one computer at
any given point in time.
Any further use is impermissible.
The licensee is forbidden:
a) To forward the software or associated printed materials to any
third party, or otherwise make it accessible to any third party,
without prior written consent from GMC-I Messtechnik GmbH
b) To transfer the software from one computer to another via a
network or other data transmission lines
c) To modify, translate, reverse engineer, decompile or disas-
semble the software without prior written consent from
GMC-I Messtechnik GmbH
d) To produce other work derived from the software or to dupli-
cate the printed materials
e) To translate or modify it the printed materials, or to produce
other work derived from them
Upon purchasing the product, the licensee acquires ownership of
the physical data storage medium only, to which the software has
been recorded. Even in this case, the licensee does not acquire
any rights to the software. GMC-I MesstechnikGmbH reserves all
rights to the software, in particular regarding publication, duplica-
tion, editing and utilization rights.
The software and the associated printed materials are protected
by copyrights. Insofar as the software is not copy protected, you
are entitled to make a single backup copy for purposes of data
security. You are obligated to attach or record the copyright
notice of GMC-I Messtechnik to the backup copy. Any copyright
notice included in the software and registration numbers recorded
to it may not be removed. It is expressly prohibited to copy or oth-
erwise duplicate the software or the printed materials, either in
part or in their entirety, in their original or in any modified form, or
in any form involving mixing with, or inclusion in, other software.
The right to use the software can only be transferred to a third
party with prior written consent from GMC-I Messtechnik, and
only under the conditions set forth in this agreement. Giving away,
renting and loaning the software are expressly forbidden.
The license agreement is valid for an indefinite period of time. The
licensee’s right to use the software expires automatically without
notice in the event that he violates any of the conditions of this
agreement. Upon termination of the licensee’s right to use the
software, he is obligated to destroy the original data storage
medium, as well as all copies of the software, including any modi-
fied copies and the printed materials.
GMC-I Messtechnik draws attention to the fact that the licensee is
liable for all damages resulting from copyright violations incurred
by GMC-I Messtechnik due to any breach of the conditions of this
agreement committed by the licensee.
GMC-I Messtechnik is entitled to update the software at its own
discretion.
GMC-I Messtechnik is not obligated to automatically make any
software updates available to the licensee.
Guarantee:
a) GMC-I Messtechnik guarantees to the original licensee that, at
the time of delivery, the data storage medium to which the
software has been recorded, as well as the hardware supplied
with the software, demonstrate error-free material and work-
manship when used under normal operating conditions and
with normal maintenance.
b) In the event that the data storage medium or the hardware
delivered with it should be defective, the buyer is entitled to
demand replacement during the guarantee period of 6
months after delivery. The buyer must return the data storage
medium and any hardware supplied along with it to this end,
together with the backup copy, the printed materials and a
copy of the invoice to GMC-I Messtechnik.
c) If a defect as described in point b) is not eliminated within a
reasonable period of time by means of replacement, the buyer
is entitled to demand either a reduction of the purchase price
or cancellation of the sales contract at his own discretion.
d) GMC-I Messtechnik does not assume any liability for defects
in the software. In particular, GMC-I Messtechnik does not
guarantee that the software shall fulfill the buyer’s require-
ments and purposes, or that it functions together with other
software programs selected by the buyer. Responsibility for
correct selection and the consequences of use of the soft-
ware, as well as any intended or achieved results obtained
with the software, are borne by the buyer. The same applies
to the printed materials which accompany the software. If the
software is not generally usable in the spirit of the program
description and the instructions for use, the buyer has the
right to rescind the sales contract. GMC-I Messtechnik also
has the right to rescind the sales contract if such usability can-
not be restored at reasonable expense.
e) GMC-I Messtechnik assumes no liability for damages, unless
they result from gross negligence or malicious intent on the
part of GMC-I Messtechnik. Liability for gross negligence is
also excluded vis-à-vis merchants. Any liability resulting from
characteristics warranted by GMC-I Messtechnik remain unaf-
fected. Liability for consequential damages which are not cov-
ered by warranted characteristics is excluded.

4GMC-I Messtechnik GmbH
2 Introduction
The PROFITEST PV 1500 allows for the measurement of the characteristic IU
curves of photovoltaic modules and strings. Thanks to a new process, the
instruments are capable of calculating peak power, internal series resistance Rs
and shunt resistance Rp on the basis of measured values directly at the PV sys-
tem’s installation site, and displaying them at the color graphic display.
Peak power is power achieved by a module under standard test conditions (STC)
[1]. Until recently, the measurement of peak power was only possible by means
of a complex procedure in specially equipped laboratories. Thanks to a patented
process developed by Professor Dr. Wagner at the university of applied sciences
in Dortmund, Germany, this measurement can now be easily performed with
the PROFITEST PV 1500. Quality control for PV systems is thus quick and
economical without a long learning curve. In actual practice, this simple yet
decisive test assures safety for the customer and for the installer. Beyond this,
acquired characteristic curves make it possible to draw further conclusions
regarding the electrical characteristics of the measured module or string. And
thus the PROFITEST PV 1500 is also suitable for use in research and
development.
The PROFITEST PV 1500 is a portable measuring instrument with
integrated battery (supply power) in a sturdy housing. The instru-
ment is equipped with its own miniature industrial PC and a high-
contrast, color graphic, daylight-compatible LCD, and can thus
be used independent of additional devices. However, a PC can
be connected via a standard USB port if required for data trans-
mission and further analysis of the measured values.
The PROFITEST PV 1500 is operated conveniently via a touch-
screen and a menu. The functions are designated in a self-explan-
atory fashion with simple pictograms, and the user is prompted
continuously by the software. The leaning curve for becoming
familiar with instrument operation is practically non-existent.
All commercially available irradiation sensors can be connected to
the instrument, which generate a voltage of approximately 0 to
100 mV with linear dependence on irradiation (Phox sensors).
Depending on instrument variant, an additional Pt100 sensor can
also be connected. This makes it possible to measure module
temperature, and is mounted to the back of the module.
Measurement Description
The PROFITEST PV 1500 automatically measures the character-
istic current-voltage curve of the generator at a capacitive load, as
well as momentary temperature and irradiation at the point in time
of measurement, and calculates the effective solar cell curve, Ppk,
Rpand Rs, on the basis on the measured values [2][3]. Measure-
ment data are saved to continuously battery-backed memory
after measurement, and can thus be retrieved again later (for
example at the office) [4]. The instrument has enough internal
memory storage capacity for several thousand measurements.
The following values are displayed as results:
Absolute values:
• Peak power PPk
• Internal series resistance Rs
• Parallel internal resistance (shunt resistance) Rp
Instantaneous values:
•U
pmax, Ipmax, Pmax,
•U
oc, Isc, FF, Tmod, ETRMS
If desired, the ascertained characteristic IU curve appears directly
at the integrated, high resolution color graphic display.
3 Use for Intended Purpose
The PROFITEST PV 1500 peak power meter and characteristic
curve tracer is used exclusively for recording IC curves of individ-
ual photovoltaic modules and strings. Before the device under
test is connected to the measuring instrument, it must be assured
that the DUT cannot, at any time, exceed the measuring instru-
ment’s maximum permissible current and voltage values.
4 Safety Precautions
Before initial startup of the measuring instrument, read through
the included operating instructions completely in any case,
because it contains important information for the prevention of
damage to the measuring instrument and personal injury! Keep
this manual together with the PROFITEST PV 1500.
Instructions regarding safety are identified with symbols signifying
“Caution!” or “Caution: Dangerous Electric Voltage!,” and must be
carefully adhered to. Damages resulting from non-compliance
with these instruction are excluded from the guarantee. No liability
is assumed for consequential damages.
PV Analysator software necessitates a PC with hard disk and MS
MS Windows®Vista, 7, 8 or 10, as well as a mouse for control
purposes. An available USB port is required in order to connect
the PROFITEST PV 1500 to the PC.
Available space on the hard disk required for PV Analysator soft-
ware amounts to roughly 52 MB prior to installation. Make sure
that there is always adequate hard disk memory capacity for sub-
sequent storage of data.
Caution!
!
We would like to draw attention to the fact that, for pur-
poses of data security, it’s very important to create a
backup for program data on separate data storage
media at regular intervals, in order to be able to continue
working without any significant loss of data in the event
that data or the data storage medium is damaged. Even
with the current state-of-the-art, damage of this sort
cannot be ruled out. In the case of damage, do not re-
store individual program files: Always restore the entire
data backup because inconsistencies amongst program
functions might otherwise occur, which in turn may lead
to loss of data! If you have any doubts in such cases,
contact your supplier or the manufacturer.
Opening of Equipment / Repair
The equipment may be opened only by authorized service per-
sonnel to ensure the safe and correct operation of the equipment
and to keep the warranty valid.
Even original spare parts may be installed only by authorized ser-
vice personnel.
In case the equipment was opened by unauthorized personnel,
no warranty regarding personal safety, measurement accuracy,
conformity with applicable safety measures or any consequential
damage is granted by the manufacturer.
4.1 Device Safety Features and Precautions
This instrument fulfills all requirements of applicable European and
national EU directives. We confirm this with the CE mark. A corre-
sponding declaration of conformity can be requested from GMC-I
Messtechnik GmbH.
[1] Standard test conditions STC (IEC60904-3) specify irradiation: 1000 W per sq.
meter, spectrum AM: 1.5, module temperature: 25°C.
[2] Wagner A.: Peak-Leistung- und Serien-Innenwiderstand-Messung unter natürli-
chen Umgebungsbedingungen. - EuroSun Kopenhagen 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.

GMC-I Messtechnik GmbH 5
4.2 Battery Pack Safety Precautions
The test instrument is powered by a built-in rechargeable lithium-
ion battery. Observe the following points:
• Read and comply with the information concerning the
rechargeable battery included in this document, and in the
rest of the product documentation for the
PROFITEST PV 1500.
• Read and comply with the documentation included with the
rechargeable battery:
• Handling document for lithium-ion batteries (including lith-
ium-ion polymer batteries), either in equipment or pack-
aged together with equipment
• Safety data sheet (SDS)
• Comply with currently valid regulations concerning transport
and use of (rechargeable) lithium-ion batteries.
• Ambient conditions:
• Do not expose the instrument or its built-in rechargeable
battery to direct sunlight.
• Operate and store the instrument and its built-in recharge-
able battery only under the specified operating conditions
(see page 23).
• The instrument may only be opened and repaired by autho-
rized, trained personnel. see “Opening of Equipment / Repair”
on page 4.
If the rechargeable battery in your instrument is no longer
usable, please contact our Repair and Replacement Parts
Service department. see “Repair and Replacement Parts Ser-
vice Calibration Center and Rental Instrument Service” on
page 33.
UN Recommendations on the Transport of Dangerous Goods and
Safety Data Sheet
We hereby certify that the rechargeable lithium-ion battery built
into the instrument is in compliance with “UN Model Regulations,
Manual of Test and Criteria, Part III, subsection 38.3”.
This is confirmed by the included safety data sheet, to which we
make explicit reference.
5 Warnings
Non-observance of the following information may result in sever
injury and/or mortal danger!
Caution!
!
Read the operating instructions before starting the
instrument up.
Caution: Dangerous Electric Voltage!
Danger of electric shock
Caution: measuring category O. The instrument may not be used
in measuring categories II, III and IV.
Measurement terminals may not be connected to ground.
This instrument may never be used in proximity to flammable
gases.
Keep children and babies away from the measuring setup!
The measuring instrument may not be used in areas with exces-
sive dust or high atmospheric humidity. No liquids may be permit-
ted to penetrate into the instrument’s interior.
In case of unusual sounds or odors, or if smoke develops, switch
the instrument off immediately and disconnect it from supply
power with the load disconnector.
Check the power measurement cable for damage prior to each
measurement. If the measuring instrument’s cables are damaged,
they must be replaced immediately. Cables may not be repaired.
Only a limited DC power source (photovoltaic generator) with no
more than 20 A may be connected to the power measurement
input at the PROFITEST PV 1500. Connecting other sources may lead
to destruction of the instrument!
Cable connections to the PV generator may only be completed by
qualified electricians. For safety reasons, measurement should
only be performed by a trained electrician. Other required qualifi-
cations and laws (e.g. VDE 0100) must also be adhered to,
because mortal danger prevails due to heavy current and high-
voltage!
The devices included in the scope of delivery of the
PROFITEST PV 1500 (PROFITEST PV 1500 basic instrument,
irradiation reference sensor) may only be opened up and repaired
by qualified personnel who have been authorized to do so by the
manufacturer. All cables which might conduct dangerous voltage
or current must be disconnected before each and every interven-
tion. Caution: Even after disconnecting the device under test, life endan-
gering voltage may still be present inside the PROFITEST PV 1500!
Under certain circumstances, the solar generator may generate
very high current and voltage, which may result in severe injury in
the event of improper handling! The corresponding safety regula-
tions (VDE) must be adhered to.
Observe all applicable safety regulations regarding work per-
formed on roofs.
!! Very Important !!
Never connect or disconnect the solar generator cables to or from
the PROFITEST PV 1500 without first isolating the generator! An all-
pole safety switch included in the measurement cable (see sec-
tion 7) allows for isolation and hazard-free connection of the mea-
surement cables to the PROFITEST PV 1500.
The plugs at the ends of the measurement cables for power mea-
surement (4-wire measurement cable) must be inserted into the
corresponding sockets as far as they will go. The measuring
instrument and the cable might otherwise be damaged during
measurement due to arcing in the plug connection (fire hazard!).
During measurement and in the case of electrical damage to the
measuring instrument, the generator is short-circuited inside the
PROFITEST PV 1500 and arcing may occur between the plug and the
socket when the plug is removed, which may cause severe dam-
age to health, as well as property damage! Disconnection from
the PROFITEST PV 1500 is only rendered safe after isolating the
solar generator.

6GMC-I Messtechnik GmbH
6 Operating the PROFITEST PV 1500
6.1 Controls and Connectors
1 On/off switch
2USBporttoPC
3 Socket for external power supply, 60 W
4 Status LEDs
5 Color graphic display
6 Irradiation input or combined
irradiation-temperature input
7 Temperature measurement input, Pt100 or Pt1000
8 4-wire voltage measurement input
9 4-wire current measurement input
6.2 General Notes
As is the case with nearly all electronic measuring instruments,
the PROFITEST PV 1500 can only be used within a limited tem-
perature range (see appendix). For this reason, it’s important to
avoid exposing the PROFITEST PV 1500 to direct sunlight for
lengthy periods of time. Keep the PROFITEST PV 1500 in a
shaded area if possible, or protect it from direct sunlight during
long periods of work, for example with a screen.
In its standard variant, the PROFITEST PV 1500 is not intended
for installation into other devices or holders. During operation, it’s
important that air surrounding the PROFITEST PV 1500 can cir-
culate freely in order to assure sufficient heat dissipation. For strict
storage purposes (without batteries – i.e. no charging of the bat-
teries – when no heat is generated inside the instrument) the
instrument can be stacked.
Caution!
!
Under no circumstances may any plug connections be
disconnected during measurement! Due to DC voltages/
currents which are very high in some cases, arcing may
otherwise occur at the point of contact which may cause
fire or severe personal injury (see section 4).
The membrane front panel at the PROFITEST PV 1500 is rugged.
However, please take good care of it in order to assure that you
will be able to enjoy your instrument for many years.
Observe the following suggestions in order to prevent damage to
the front panel:
Do not contact the front panel with sharp or pointed objects. In
addition to causing scratches, this may also result in destruction
of the membrane at places at which, for example, keys are
located behind it.
Clean the front panel with a soft, moist cloth. Do not use any plas-
tic sponges or abrasive cleansers, because this would cause
scratching of the Plexiglas sheet mounted in front of the LCD
monitor, which in turn would impair display quality.
When closed, the instrument housing is waterproof (IP 67). Never-
theless, do not subject the instrument to the direct influence of
water. Never leave the instrument in the rain.
In order to obtain good measuring accuracy, solar irradiation
should amount to at least 500 W per square meter at the time of
measurement if at all possible. Curves can be traced with lower
irradiation values, but results for peak power are inaccurate in this
case and are no longer displayed for this reason.
6.3 Connecting Peripheral Devices
The measuring setup consists of the peak power measuring
instrument and the following additional components:
1 USB port for PC (optional)
2 External power pack, 60 W
3 Irradiation reference sensor
4 External Pt100 for temperature at the back of the module or
short-circuiting plug
5 External safety disconnector (see section 7) between the
4-wire power measuring cable and the PROFITEST PV 1500
6 4-wire power measuring cable
The PROFITEST PV 1500 is equipped with the following inputs
and outputs (except for the jacks for the external power pack, all
interfaces are located on the front panel, and are labeled):
1
2
34
5
67
9
8
Interface Function
Mains External power pack: connection via jack plugs,
5.5 x 2.1 mm
Temperature Connection for temperature sensor
• Instruments with second temperature measuring input:
external Pt100 for acquiring temperature at the back of
the module
• Other instruments: external Pt100 or Pt1000 (depend-
ing on variant) for measuring temperature at the back of
the reference cell
Irradiation Socket for irradiation reference sensor (Phox)
• The Pt100/Pt1000 reference sensor and the measured
irradiation value are combined into a single 8-pin plug.
4-wire measurement Measurement input (voltage measurement)
Current input Power input (for current measurement)
PC Port for connection to the control PC via USB cable
1
2
3
4
5
6

GMC-I Messtechnik GmbH 7
6.4 Power Supply
The PROFITEST PV 1500 includes a rechargeable battery, thus
allowing for use independent of mains power. The battery is
charged by means of an external power pack.
Connect the power pack to the external power supply socket at
the front panel. The battery is charged for as long as the power
pack is connected and active. In order to interrupt charging, sim-
ply pull the plug from the power pack out of the socket at the
PROFITEST PV 1500.
The battery charge level is indicated by means of an LED at the
front panel, see section 18.1.
6.5 Connection to a PC
The PROFITEST PV 1500 is usually used independent of a PC.
However, if extended data evaluation is required, or if the
PROFITEST PV 1500 needs to be controlled externally, it can be
connected to a PC: Connect one end of the included USB cable
to an available USB port at your PC, and the other end to the out-
put at the PROFITEST PV 1500 provided for this purpose (“PC”
socket).
Before you can control the PROFITEST PV 1500 from your PC,
you’ll have to install the device driver for the USB port (section
10).
First of all, activate transfer at the PROFITEST PV 1500.
Otherwise, no connection can be established between the PV
Analysator control program and the PROFITEST PV 1500.
6.6 Connecting the Solar Generator
Caution!
!
During measurement, the solar generator under test may
only be connected to the PROFITEST PV 1500. It is ab-
solutely mandatory to disconnect any power consumers,
rechargeable batteries or inverters. Due to the fact that
the PROFITEST PV 1500 short-circuits the solar genera-
tor during characteristic curve tracing, the
PROFITEST PV 1500 could otherwise be severely dam-
aged or destroyed by a battery connected in parallel or a
charging capacitor at the input of an inverter.
Connect the measuring instrument, correctly polled, to the solar
generator with the included, adequately dimensioned connector
cable. The plus pole is red and the minus pole is black.
Caution!
!
Make sure that all of the power cable’s plugs have been
inserted as far as they will go into the sockets in the
housing.
Use the two sockets at the right-hand side of the housing for the
solar generator (“current input”). In case of reversed polarity,
short-circuiting of the PV generator inside the
PROFITEST PV 1500 is prevented by means of a reverse polarity
protection diode.
It’s important to ensure that all of the 4-wire measurement inputs
are connected in any case. If measurement will be conducted
with only two measurement cables, connect the sockets at the
PROFITEST PV 1500 to the neighboring sockets of the same
color with the help of short-circuiting plug, laboratory cables or
the like. Voltage measurement is not possible unless all of the 4-
wire measurement inputs at the PROFITEST PV 1500 have been
connected. Furthermore, significant voltage measurement error
must otherwise be expected.
Caution!
!
Maintain an adequate distance from current conducting
parts for the cable connection to the solar generator, be-
cause high voltages may be present and personal injury
may result even if no direct contact takes place!
6.7 Measured Value Transducers for Temperature and
Irradiation
In order to conduct a peak power measurement, a Pt100/Pt1000
temperature sensor (depending on equipment) and a Phox irradi-
ation reference sensor must be connected to the appropriate
sockets at the PROFITEST PV 1500 (included combination
device). Neither of these measured value transducers is required
for measuring internal series resistance or for strict characteristic
curve tracing. The sockets are laid out such that temperature sen-
sor and irradiation reference sensor connections cannot be
reversed.
If at all possible, the combination irradiation-temperature sensor
must be connected to the modules under test such that its orien-
tation to the sun is the same as that of the modules (compass
direction and installation angle). Be aware of the fact that any
close-by bright surfaces such as buildings may distort light inci-
dence.
For this reason, the sensor should not be set up at any consider-
able distance from the string (e.g. string on the roof and sensor in
the driveway). Due to the fact that solar cells react not only to
direct irradiation, but rather to die reflected ambient light as well,
the sensor may detect other light and distort the measurement
even if the sensor and the modules demonstrate the same orien-
tation.
In the simplest cases, the sensor is secured to the module under
test with a clamp. Make sure that no shadows are cast on the
module to be measured as a result. After mounting, the sensor
should be allowed to adjust to ambient conditions for several min-
utes. In the case of instruments without a second temperature
measurement input, the irradiation reference cell must reach a
temperature which approximates that of the module under test
(temperatures can be read from the display when the
PROFITEST PV 1500 is switched on). For safety reasons we rec-
ommend additionally checking the temperature at the back of the
test object manually, for example with the help of an infrared ther-
mometer. Only then should measurement be performed with the
PROFITEST PV 1500 (see also section 8).

8GMC-I Messtechnik GmbH
6.8 Switching the Instrument On
Switch the PROFITEST PV 1500 on with the “Power” switch on
the front panel. The initial window appears at the color display:
The PROFITEST PV 1500 conducts several self-tests and
requires approximately 10 to 15 seconds before it’s ready for
operation. The instrument is ready for operation when the main
menu appears at the LCD panel:
The following information is displayed:
Header: instrument serial number, calibration date, firmware ver-
sion
Data line: momentary irradiation, temperature of the irradiation ref-
erence sensor, temperature at the back of the module (optional),
voltage applied to the power input
Sensor line: The currently active irradiation sensor is indicated here,
and can be switched if applicable.
Footer: current date and time, “Info”, “Archive”, “PC” and “New
Measurement” buttons
Indicator lamps on the front panel:
* In the case of continuous alternation between green and yellow, the battery is be-
ing charged in the charge conservation mode. This charging procedure can be
continued for 1 to 3 hours. Longer charging in this mode is not advisable because
the battery might otherwise be damaged.
The PROFITEST PV 1500 generates acoustic signals in order to
indicate various system functions and errors. A list of the individ-
ual acoustic signals is included in the appendix.
6.9 Buttons
Available functions are represented at the screen by means of
buttons which are identified with symbols for the respective oper-
ations, for example a PC symbol identifies the data transfer func-
tion.
Charge level
(3-color LED)
Red: battery depleted (charge immedi-
ately!)
Green: battery ready for operation
Yellow: battery fully charged *)
Operation is not possible!
Operation is possible
Operation is possible
External power
supply
Lights up when the external power pack is connected and switched
on. The integrated rechargeable battery is charged automatically in
this case as well.
Info: provides information regarding the buttons
Switch: an entry can be selected here
New curve trace, opens submenu
Load measurement from the archive
Connection to the PC (transfer)
Start curve tracing now
General: cancel/exit function
Generate events list
Display characteristic IU curve
Add entry
Previous page
Next page
Acknowledge selection, OK

GMC-I Messtechnik GmbH 9
6.10 Measurement
Observe the safety precautions in section 4 and section 5, as well
as the measuring accuracy factors in section 8. Measurement is
started either at the PROFITEST PV 1500 or from the intercon-
nected analysis PC. Measurement should not be started until the
solar generator and the required sensors have been connected.
The measurement itself takes about 1 to 2 seconds, after which
results are immediately calculated and displayed at the
PROFITEST PV 1500 (or at the PC).
Accesses the measurement sub-page.
6.10.1 Entering Module, Customer and System Data
Before measurement is started, the user has the opportunity of
entering module, customer and system data. The measured val-
ues can then be saved directly to the customer data.
Modules ser: Number of modules connected in series.
Acknowledge with “OK”.
Abort returns to previous page.
Modules par: Number of strings/modules connected in
parallel.
Acknowledge with “OK”.
Abort returns to previous page.
Customer Enter / select customer from database
Create customer data either in PV Analyzer or
directly at the PROFITEST PV 1500
(max. 30 characters).
Add entry
Acknowledge with “OK”.
Abort returns to previous page.
System Enter / select system parameters
System parameters are set up either in PV
Analyzer or directly at the PROFITEST PV 1500
(max. 30 characters).
Add entry
Acknowledge with “OK”.
Abort returns to previous page.
String / Module Enter / select installation parameters
Installation parameters are set up
either in PV Analyzer or directly at the
PROFITEST PV 1500 (max. 30 characters).
Add entry
Acknowledge with “OK”.
Abort returns to previous page.
Module Type
Enter / select module types / parameters
More than 20,000 entries in PV Analyzer’s inte-
grated
database. Up to 50 module types can be
exported to the test instrument data transfer.
Add entry (manually in the test instrument /
characteristic module data required)
Acknowledge with “OK”.
Abort returns to previous page.

10 GMC-I Messtechnik GmbH
6.10.2 Start Measurement
This option starts one-time only curve tracing: Measure-
ment is conducted automatically, any errors are indi-
cated and results such as peak power, internal series
resistance Rs, as well as others including the characteristic IU
curve can be accessed immediately at the graphic display.
6.10.3 Archive
This function makes it possible to access measurement
series which have been saved automatically for a previ-
ous measurement. Existing measurement series are
listed with names based on the dates on which they were per-
formed.
A file can be selected with the help of the “Up” and
“Down” buttons.
Any other additional pages can be displayed with
the help of the “Left” and “Right” buttons.
A file can be selected with the “OK” button. The
“Abort” button returns the display to the previous
page.
The “Delete” button can be used to remove the
selected data from memory at the
PROFITEST PV 1500 (Caution: this procedure
cannot be undone).
6.10.4 Transfer
This function prepares the PROFITEST PV 1500 for con-
trol by means of an interconnected PC. The function can
be exited by pressing a button at the
PROFITEST PV 1500.
6.10.5 Results
Calculated values (peak power, Rs, Rp, FF), as well as measured
values (voltage and current) are displayed in the results page.
The characteristic IU curve can be displayed with the
“Diagram” button, and the display can be returned to the
results page with the “List” button.
6.11 Messages
“Fluctuating irradiation (ref. cell)!”,
“Too little irradiation!”,
“Fluctuating irradiation (mod)!”
Irradiation at the reference cell or the module is not
constant enough (e.g. due to clouds), and measure-
ment results may be faulty.
“Not available”
This message indicates that the measured value could
not be calculated.
“No space for new data!”
“Delete data from the PROFITEST PV 1500”
Internal non-volatile memory at the
PROFITEST PV 1500 is full. Before performing any fur-
ther measurements, previously stored measurements
should be deleted from the PROFITEST PV 1500 (see
section 6.10.3).
“Write error”
Problems while writing a series of measurement data
to internal non-volatile memory.
“Measurement not yet possible”
Safety waiting time between two measurement has
not yet elapsed.
“Rs calculation not possible”
The measurement data do not allow for the calculation
of Rs(see next point).
“Measured values cannot be analyzed”
The measured values include data which make an
analysis of the characteristic curve impossible, for
example the shape of the curve deviates significantly
from the standard curve.
“Input voltage too high”
Switch the generator off immediately with the load dis-
connector! The measuring instrument may be dam-
aged by excessively high voltage.
“Immediate repair required”
The instrument is damaged and must be inspected by
authorized service personnel and repaired if neces-
sary. In this case, the instrument must be immediately
disconnected from the device under test (set the
safety switch to “0” without delay!) and may not be
used again until it has been inspected by the manufac-
turer.
“Incorrect polarity!”
The cables at the PROFITEST PV 1500 have been
connected incorrectly. Isolate the generator immedi-
ately with the load disconnector and reconnect the
cables correctly.