HT SOLAR I-Ww, I-V400w, I-V500w, SOLAR I-Ve User Manual
Copyright HT ITALIA 2017 Release EN 2.00 - 24/03/2017
I-V400w – SOLAR I-Ww
I-V500w – SOLAR I-Ve
User manual
I-V400w - I-V500w - SOLAR I-Vw - SOLAR I-Ve
EN - 1
Table of contents:
1. SAFETY PRECAUTIONS AND PROCEDURES .......................................................... 3
1.1. Preliminary instructions ..................................................................................................... 3
1.2. During use ......................................................................................................................... 4
1.3. After use ............................................................................................................................ 4
1.4. Overvoltage categories - Definitions ................................................................................. 4
2. GENERAL DESCRIPTION ........................................................................................... 5
2.1. Introduction ........................................................................................................................ 5
2.2. Instrument features ........................................................................................................... 5
3. PREPARATION FOR USE ........................................................................................... 6
3.1. Initial checks ...................................................................................................................... 6
3.2. Instrument power supply ................................................................................................... 6
3.3. Storage .............................................................................................................................. 6
4. DESCRIPTION OF PARTS .......................................................................................... 7
4.1. Instrument description ....................................................................................................... 7
4.2. Keyboard description ......................................................................................................... 8
4.3. Display description ............................................................................................................ 8
4.4. Initial screen ...................................................................................................................... 8
5. MAIN MENU ................................................................................................................. 9
5.1. SET – Instrument settings ................................................................................................. 9
5.1.1. General .................................................................................................................................... 9
5.1.2. Measurement units ................................................................................................................ 10
5.1.3. Date/Time ............................................................................................................................... 10
5.1.4. Remote unit/Solarim. ............................................................................................................. 11
5.1.5. Irradiance ............................................................................................................................... 12
5.1.6. DC Clamp (SOLAR I-Vw or SOLAR I-Ve) ............................................................................. 12
5.2. EFF – SETTINGS FOR TESTING PV SYSTEMS (SOLAR I-Vw or SOLAR I-Ve) .......... 13
5.2.1. Settings for PV systems with single-MPPT inverter - single-phase AC output ..................... 13
5.2.1.1. Instrument settings ........................................................................................................................... 13
5.2.1.2. PV plant parameters ........................................................................................................................ 14
5.2.2. Settings for PV with single/multi MPPT inverter – single/three phase AC output .......................... 15
5.2.2.1. Instrument settings ........................................................................................................................... 15
5.2.2.2. PV plant parameters ........................................................................................................................ 16
5.2.2.3. MPP300 status ................................................................................................................................ 17
5.2.3. Selection of the compensation relationship of temperature effects ....................................... 18
5.3. DB – Module database .................................................................................................... 19
5.3.1. How to define a new PV module ............................................................................................ 20
5.3.2. How to modify a PV module ................................................................................................... 21
5.3.3. How to delete a PV module ................................................................................................... 21
6. HOW TO OPERATE ................................................................................................... 22
6.1. Testing PV systems (SOLAR I-Vw or SOLAR I-Ve) ........................................................ 22
6.1.1. Testing of PV systems with single-MPPT inverter - single-phase AC output ........................ 23
6.1.2. Test PV systems with single/multi-MPPT inverter – single/three-phase AC output ................... 27
6.2. I-V curve measurement ................................................................................................... 33
6.2.1. I-V curve measurement by use of instrument ........................................................................ 33
6.2.2. I-V curve measurement by use of remote unit SOLAR-02 .................................................... 37
6.2.2.1. I-V curve test by remote unit SOLAR-02 in RF connection .............................................................. 37
6.2.2.2. I-V curve test by remote unit SOLAR-02 in synchro recording ......................................................... 41
6.2.3. Meaning of measurement results .......................................................................................... 46
6.3. Quick Check on PV modules and strings (IVCK) ............................................................ 47
6.3.1. General information ............................................................................................................... 47
6.3.2. Preliminary settings ................................................................................................................ 48
6.3.3. Fast check IVCK without irradiance measurement ................................................................ 49
6.3.4. Fast check IVCK with irradiance measurement ..................................................................... 51
6.3.5. Reset Media ........................................................................................................................... 53
6.4. List of display messages ................................................................................................. 54
7. STORING DATA ......................................................................................................... 55
7.1. Saving test results of PV checks (SOLAR I-Vw or SOLAR I-Ve) .................................... 55
7.2. Saving test results of I-V curve test ................................................................................. 55
I-V400w - I-V500w - SOLAR I-Vw - SOLAR I-Ve
EN - 2
7.3. Managing the results ....................................................................................................... 56
7.3.1. Recall data of PV checks at display (SOLAR I-Vw or SOLAR I-Ve) ..................................... 56
7.3.2. Recall data of I-V curve tests at display ................................................................................. 57
7.3.2.1. View data – Numerical screens ........................................................................................................ 58
7.3.2.2. View data – Graphic screens of I-V curve ........................................................................................ 59
7.3.2.3. View data – Graphic screens of power ............................................................................................. 60
7.3.3. Delete data ............................................................................................................................. 61
8. CONNECTING THE INSTRUMENT TO A PC ............................................................ 62
8.1. Connecting by optical/USB cable C2006 ........................................................................ 62
8.2. Connecting by WiFi ......................................................................................................... 63
9. MAINTENANCE .......................................................................................................... 64
9.1. General ............................................................................................................................ 64
9.2. Battery replacement ........................................................................................................ 64
9.3. Instrument cleaning ......................................................................................................... 64
9.4. End of life ........................................................................................................................ 64
10. TECHNICAL SPECIFICATIONS ................................................................................. 65
10.1. Yield test technical feratures (SOLAR I-Vw, SOLAR I-Ve) .............................................. 65
10.2. I-V test technical features (I-V and IVCK) ....................................................................... 67
10.3. Safety specifications ........................................................................................................ 68
10.3.1. General .................................................................................................................................. 68
10.4. General characteristics .................................................................................................... 69
10.5. Environment conditions ................................................................................................... 69
10.6. Accessories ..................................................................................................................... 69
11. APPENDIX ................................................................................................................. 70
11.1. Testing photovoltaic systems (SOLAR I-Vw, SOLAR I-Ve) ............................................. 70
11.2. Notes on MPPT (Maximum Power Point Tracker) .......................................................... 71
11.3. Theoretical aspects of the I-V curve measurement ......................................................... 72
11.3.1. Typical errors on I-V curves and troubleshooting .................................................................. 73
12. SERVICE .................................................................................................................... 75
12.1. Warranty conditions ......................................................................................................... 75
12.2. Service ............................................................................................................................ 75
I-V400w - I-V500w - SOLAR I-Vw - SOLAR I-Ve
EN - 3
1. SAFETY PRECAUTIONS AND PROCEDURES
The word “instrument” in this manual means generically both the models I-V400w, I-V500w,
SOLAR I-Vw or SOLAR I-Ve e SOLAR I-Ve except notation specifically indicated. This
instrument has been designed in compliance with directives IEC/EN61010-1 regarding
electronic measuring instruments. Before and while measuring, carefully follow the
instructions below:
Do not perform voltage or current measurements in humid environments
Do not perform measurements near explosive gas or material and fuels or in dusty
environments
Avoid contact with the circuit tested if no measurement is being performed
Avoid contact with exposed metal parts, test terminals not in use, circuits, etc.
Do not perform any measurement if instrument anomalies are detected, such as
deformations, breaks, leakage of substances, no display reading, etc.
Only use original HT accessories
In this manual, following symbols are used:
CAUTION: Follow the instructions given in this manual; improper use may
damage the instrument, its components or create dangerous situations for the
operator
High voltage: risk of electrical shock
Double insulation
DC voltage or current
AC voltage or current
Ground reference
1.1. PRELIMINARY INSTRUCTIONS
This instrument has been designed for use in the environmental conditions specified in
§ 10.5. Do not use in different environmental conditions.
The instrument may be used for measuring of VOLTAGE and CURRENT in CAT II
1000V DC or CAT III 300V to ground, maximum voltage 1000V between inputs (IV400w and SOLAR I-Vw or SOLAR I-Ve) or 1500V (I-V500w and SOLAR I-Ve) Do not
use on systems exceeding the limit values specified in § 10.1 and § 10.2
We recommend to follow the ordinary safety rules aimed at: your protection against
dangerous currents, the instrument’s protection against improper use.
Only the accessories provided with the instrument guarantee compliance with safety
standards. They must be in good conditions and must be replaced, if necessary, with
identical models.
Check that batteries are correctly inserted.
Before connecting the test cables to the circuit being tested, check that the desired
function has been selected.
I-V400w - I-V500w - SOLAR I-Vw - SOLAR I-Ve
EN - 4
1.2. DURING USE
We recommend to carefully read the following recommendations and instructions:
CAUTION
Failure to comply with the CAUTIONs and/or instructions may damage the
instrument and/or its components or cause dangers to the operator.
The symbol “ ” indicates the charge level. When there are five bars, it
means that batteries are fully charged; a decrease in the number of bars
down to “ ” indicates that the batteries are almost low. In this case,
interrupt tests and replace the batteries according to the indications given
in § 9.2. The instrument is capable of keeping data stored even
without batteries.
1.3. AFTER USE
When measuring operations are completed, turn off the instrument by pressing and
holding the ON/OFF key for a few seconds. Should the instrument remain unused for a
long time, remove batteries and follow the indications given in § 3.3.
1.4. OVERVOLTAGE CATEGORIES - DEFINITIONS
Standard IEC/EN61010-1 (Safety requirements for electrical equipment for measurement,
control and laboratory use, Part 1: General requirements) defines what a measurement
category (usually called “overvoltage category”) is. At § 6.7.4: Measuring circuits it quotes:
Circuits are divided into the following measurement categories:
Measurement Category IV is for measurements performed at the source of the low-
voltage installation.
Examples are electricity meters and measurements on primary overcurrent protection
devices and ripple control units.
Measurement Category III is for measurements performed in the building installation.
Examples are measurements on distribution boards, circuit breakers, wiring, including
cables, bus-bars, junction boxes, switches, socket-outlets in the fixed installation, and
equipment for industrial use and some other equipment, for example, stationary motors
with permanent connection to fixed installation.
Measurement Category II is for measurements performed on circuits directly
connected to the low voltage installation.
Examples are measurements on household appliances, portable tools and similar
equipment.
Measurement Category I is for measurements performed on circuits not directly
connected to MAINS.
Examples are measurements on circuits not derived from MAINS, and specially
protected (internal) MAINS-derived circuits. In the latter case, transient stresses are
variable; for that reason, the norm requires that the transient withstand capability of the
equipment is made known to the user.
I-V400w - I-V500w - SOLAR I-Vw - SOLAR I-Ve
EN - 5
2. GENERAL DESCRIPTION
2.1. INTRODUCTION
The instrument was designed to perform complete yield test on single-phase (and three-
phase if combined with optional accessory MPP300) PV installations with calculations of
efficiencies (SOLAR I-Vw or SOLAR I-Ve) and to perform all I-V curve tests on single
modules (panels) or complete strings of photovoltaic (PV) plants in order to verify the reference
parameters given by the manufacturers.
2.2. INSTRUMENT FEATURES
The instrument can perform the following tests:
Check Single phase PV installations (EFF - SOLAR I-Vw and SOLAR I-Ve)
DC voltage and current measurements (1000V for SOLAR I-Vw 1500V for SOLAR I-Ve)
AC TRMS voltage and current measurements
DC/AC power measurement
Solar irradiation [W/m2] measured by use of reference cell connected to unit SOLAR-02
Module and environ. temp. measurement by means of probe connect to SOLAR-02
Use of compensation relationships on PDC measurements
Immediate evaluation of result OK/NO of a test
Checks with programmable IP from 5s to 60min
Testing single/three-phase PV systems (MPP – SOLAR I-Vw, SOLAR I-Ve + MPP300)
Measurement of 3 DC voltages and currents
Measurement of DC string power and total DC power
Measurement of 3 AC TRMS voltages and currents
Measurement of total AC power
Measurement of irradiation [W/m2] by means of a reference cell connected to SOLAR-02
Module and environ. temp. measurement by means of probe connect to SOLAR-02
Application of compensation relationships to DC efficiency.
Immediate evaluation of result OK/NO of a test
Parameter recording of a PV system with 5s to 60min programmable IP
I-V Curve measurement
Voltage, current, power of PV module/string 1000VDC, 15ADC (SOLAR I-Vw, I-V400w)
I-V/power module/string 1500VDC-10ADC or 1000VDC-15ADC (SOLAR I-Ve, I-V500w)
Activation of manual or automatic measurement
PV module/string temperature measurement
Irradiance measurement [W/m2] by using reference cell
Numerical and graphical results of I-V curve with 4-wire method
Comparison of results with standard conditions (STC) and OK/NO final response
Internal customizable database for definition up to 30 PV modules
Annual degradation evaluation of PV modules/strings/fields
Internal memory for saving test and Optical/USB interface for PC connection
Quick Check (IVCK)
Fast test of open voltage and short circuit current up to 1000V DC, 15A (SOLAR I-Vw,
I-V400w) and up to 1500VDC, 15A (SOLAR I-Ve, I-V500w)
Activation of manual or automatic measurement
Immediate evaluation (OK/NO) of test results
The instrument has an innovative electronic function selector to simply set operations with
internal parameters, a backlit display, the contrast adjustment and a HELP key in order to
give a valid help to the operator during the meter’s connection to the plants. An
enable/disable Auto Power OFF feature is available after about 5 minutes of idleness.
I-V400w - I-V500w - SOLAR I-Vw - SOLAR I-Ve
EN - 6
3. PREPARATION FOR USE
3.1. INITIAL CHECKS
Before shipment, the instrument’s electronics and mechanics have been carefully checked.
All possible precautions have been taken to have the instrument delivered under optimal
conditions. However, we recommend to rapidly check the instrument in order to detect
possible damage occurred during transport. Should you detect anomalies, please
immediately contact the dealer.
It is also recommended to check that the package contains all parts indicated in § 10.6. In
case of discrepancies, please contact the dealer. Should it be necessary to return the
instrument, please follow the instructions given in § 12.
3.2. INSTRUMENT POWER SUPPLY
The instrument is battery supplied. For battery type and life, see § 10.4.
The symbol “ ” indicates the charge level. When there are five bars next to the battery
symbol, it means that batteries are fully charged; a decrease in the number of bars down
to “ ” indicates that the batteries are almost low. In this case, interrupt tests and
replace the batteries according to the indications given in § 9.2.
The instrument is capable of keeping data stored even without batteries.
The instrument is provided with advanced algorithms to maximize the batteries’ life.
During instrument operation, a further short pressing of the key turns on the display’s
backlighting (if battery voltage level is high enough). In order to save battery efficiency,
backlighting automatically turns off after approx. 30 seconds.
A frequent use of back lighting reduces the batteries’ life
3.3. STORAGE
In order to guarantee precise measurements, after a long period of the instrument’s
storage under extreme environmental conditions, wait until it recovers its normal conditions
(see § 10.5).
I-V400w - I-V500w - SOLAR I-Vw - SOLAR I-Ve
EN - 7
4. DESCRIPTION OF PARTS
4.1. INSTRUMENT DESCRIPTION
CAPTION:
1. Inputs
2. Display
3. Connector for opto insulated cable
4. Arrows/ENTER key
5. GO/STOP key
6. SAVE key
7. ON/OFF key
8. HELP / key
9. ESC/MENU key
Fig. 1: Description of the front part of the instrument
CAPTION:
1. Input for irradiance probe (I-V) / DC
transducer clamp (EFF – SOLAR IVw, SOLAR I-Ve)
2. Input for auxiliary temperature probe
(I-V) / AC transducer clamp (EFF –
SOLAR I-Vw, SOLAR I-Ve)
3. C1, C2 inputs for current
measurement (I-V) / voltage
measurement (EFF – SOLAR I-Vw,
SOLAR I-Ve)
4. P1, P2 inputs for voltage
measurement (I-V) / AC voltage
(EFF – SOLAR I-Vw, SOLAR I-Ve)
Fig. 2: Description of the upper part of the instrument
CAPTION:
1. Connector for opto insulated cable
connection
Fig. 3: Description of the instrument’s side
I-V400w - I-V500w - SOLAR I-Vw - SOLAR I-Ve
EN - 8
4.2. KEYBOARD DESCRIPTION
The keyboard includes following keys:
ON/OFF key to switch on/off the instrument
ESC/MENU key to exit the selected menu without confirming and to activate
menu management
keys to move the cursor through the different screens in order to
select the desired programming parameters
ENTER key to confirm the modifications and the selected programming
parameters and to select the function from the menu
GO/STOP key to start measurements
SAVE key to save the measured values
HELP key (long pressure) to display an indicative outline of the connections
between the instrument and the system being tested in the function set
key (short pressure) to turn on the display’s backlighting
4.3. DISPLAY DESCRIPTION
The display is a graphic module with a resolution of 128 x 128
dots. The display’s first line indicates the system date/hour
and the battery charge indicator.
In the bottom part the functionality of ENTER key and the
active mode is displayed
The symbol indicates the presence of an active radio
connection with the selected remote unit (SOLAR-02 or
MPP300).
The flashing symbol indicates that the instrument is
currently searching for a radio connection with the selected
remote unit (SOLAR-02 or MPP300).
15/05/10 15:34:26
Selection
I – V
4.4. INITIAL SCREEN
When turning on the instrument, the instrument displays the
initial screen for a few seconds. It displays the following:
The instrument’s model
The manufacturer’s name
Internal presence of modules for RF (Radio Frequency)
and WiFi connection
The serial number (SN:) of the instrument
The firmware version (FW:) in the instrument's memory
The date of the last calibration (Calibration date:)
SOLAR
I-Vw
HT
RF-Wi SN:15345678
FW: 7.07 H4
Calibration date:
09/02/2016
Then, the instrument switches to the last function selected.
I-V400w - I-V500w - SOLAR I-Vw - SOLAR I-Ve
EN - 9
5. MAIN MENU
Pressing the MENU/ESC key in any allowable condition of
the instrument displays the main menu screen, in which the
instrument may be set, the saved measures can be displayed
and the desired measuring function may be set (item EFF
only appears for instrument SOLAR I-Vw or SOLAR I-Ve).
Select by cursor the desired options and confirm by pressing
ENTER
15/05/10 15:34:26
I - V
I-V Test
EFF Yield Test
SET
Settings
DB
Modules
MEM
Data Recall
PC
PC connection
ENTER to select.
MENU
5.1. SET – INSTRUMENT SETTINGS
Move the cursor to SET by means of the arrow keys (,)
and confirm with ENTER. Subsequently, the displays shows
the screen which provides access to the various instrument’s
settings.
The settings will remain valid also after switching off the
instrument
15/05/10 15:34:26
General
Meas. Unit
Date and Time
Remote Unit/Solarim.
Irradiance
DC Clamp
ENTER to select.
SET
5.1.1. General
1. Move the cursor to “General” by means of the arrow keys
(,) and confirm with ENTER
2. The displays shows the screen which allows:
Setting the instrument language
Setting the enable/disable of auto power off
Adjusting the contrast of display
Enabling the acoustic signal when pressing a key
Setting the enable/disable of WiFi interface inside each
section of main menu for using the instrument with the
HTAnalysis APP (in the PC section the WiFi interface is
always on). With WiFi enabled the “ ” symbol is shown
in the bottom right side of the display. The enable of
WiFi interface means a higher consumption of the
batteries
3. By means of the arrow keys (,) and select the desired
option by means of the arrow keys (,)
4. Confirm with SAVE and the “Data saved” message is
displayed for a while. Press the ESC/MENU key to exit
without saving and to go back to the previous screen
15/05/10 15:34:26
Language : English
AUTOPOWEROFF:NO
Contrast: 10
Key Beep: NO
WiFi: NO
SAVE to store data
SET
I-V400w - I-V500w - SOLAR I-Vw - SOLAR I-Ve
EN - 10
5.1.2. Measurement units
This § allows setting the default measurement units of some internal parameters included
in the database (DB) for the management of PV modules (§ 5.3)
1. Move the cursor to “Meas. Unit” by means of the arrow
keys (,) and confirm with ENTER.
2. The display shows the screen which allows selecting the
measurement units of parameters shown by the meter.
3. Press ESC/MENU to exit without saving any setting.
15/05/10 15:34:26
Parameter
ENTER to select
MENU
4. Move the cursor to “Parameter” by means of the arrow
keys (,) and confirm with ENTER.
5. The display shows the screen which allows selecting the
measurement units of typical parameters of the modules:
Alpha possible selection: “%/°C” and “mA/°C”
Beta possible selection: “%/°C” and “mV/°C”
Gamma possible selection: “%/°C” and “W/°C”
Tolerance possible selection: “%” and “W”
6. Set the desired units by means of the arrow keys (,).
7. Confirm with SAVE and the “Saved data” message is
displayed for a while. Press ESC/MENU key to exit without
saving and to go back to the previous screen.
15/05/10 15:34:26
Alpha
: mA/°C
Beta
Gamma
Tolerance
: mV/°C
: W/°C
: %
SAVE to store data
SET
5.1.3. Date/Time
1. Move the cursor to “Date/Time” by means of the arrow
keys (,) and confirm with ENTER
2. The display shows the screen which allows setting the
system date/time both in the European (EU) or USA (US)
format.
3. Set the values by means of the arrow keys (,).
4. Confirm with SAVE and the “Saved data” message is
displayed for a while. Press ESC/MENU key to exit without
saving and to go back to the previous screen.
15/05/10 15:34:26
Year
: 2009
Month
Day
Hour
Minute
Format
: 06
: 15
: 09
: 53
: EU
SAVE to store data
SET
I-V400w - I-V500w - SOLAR I-Vw - SOLAR I-Ve
EN - 11
5.1.4. Remote unit/Solarim.
This section allows selecting the type of remote unit to be used (if available) and setting
the values of typical parameters (Sensitivity and Alpha) of the reference irradiance cell
supplied with the meter. The values of these parameters, which are printed on the
back label of the cell, depend on the type of PV modules on test.
1. Move the cursor to “Remote unit” by means of the arrow
keys (,) and confirm with ENTER
2. The display shows the screen which allows:
Select the type of remote unit to be used for testing PV
systems (SOLAR I-Vw or SOLAR I-Ve):
o NO: Remote unit disabled
o SOLAR: Use of SOLAR-02
o MPP300: Use of MPP300 (optional)
Enable/disable the use of the remote unit SOLAR-02 for
I-V measurements (opt. for I-V400w and I-V500w). In
case the use of the remote unit has not been enabled, it
will be possible to set the sensitivity values (sens.) of the
reference cell provided, expressed in “mV/kW*m-2”, and
of the Alpha parameter.
3. Set the value by means of the arrow keys (,)
4. Confirm with SAVE and the “Saved data” message is
displayed for a while. Press ESC/MENU key to exit without
saving and to go back to the previous screen
15/05/10 15:34:26
Remote U EFF MPP300
Remote U I-V: : NO
Sens.
: 31.0 mV/kW/m2
Alp
ha : 0.060 %/°C
SAVE to store data
SET
CAUTION
For EFF measurements (testing of PV systems – SOLAR I-Vw or SOLAR I-
Ve), disabling the remote unit entails:
The impossibility of carrying out Irradiation and Temperature
measurements by means of unit SOLAR-02
The impossibility of using the unit MPP300 (if available)
Consequently, it will be impossible to obtain a result for the test carried out.
I-V400w - I-V500w - SOLAR I-Vw - SOLAR I-Ve
EN - 12
5.1.5. Irradiance
1. Move the cursor to “Irradiance” by means of the arrow
keys (,) and confirm with ENTER.
2. The display shows the screen with the options: “ Irr min
IV” which allows to set the minimum threshold of
measured irradiance expressed in W/m2, used by meter as
reference during the I-V curve measurements and “Irr min
EFF” (SOLAR I-Vw or SOLAR I-Ve which allows to set the
minimum threshold of measured irradiance expressed in
W/m2, used by meter as reference during the check PV
efficiency measurements
3. Set the value by means of the arrow keys (,). The
accuracy indicated in this manual is granted under
condition indicated in § 10.1 and § 10.2. In I-V curve
measurement the value is set within the 0 800 W/m2
interval while 400 800 W/m
2
for the PV check
operations (SOLAR I-Vw or SOLAR I-Ve)
4. Confirm with SAVE and the “Saved data” message is
displayed for a while. Press ESC/MENU key to exit without
saving and to go back to the previous screen.
15/05/10 15:34:26
Irr min IV
: 0 W/m2
Irr min EFF
: 600 W/m2
SAVE to store data
SET
CAUTION
The “0 W/m2” setting for parameter “Min Irr IV” allows carrying out I-V
measurements without the following conditions being checked:
Connection of reference cell to input IRR of the instrument
Unsteady irradiation values
Number of modules consistent with the measured open circuit voltage
5.1.6. DC Clamp (SOLAR I-Vw or SOLAR I-Ve)
This option allows setting a possible correction factor K for the DC clamp, in order to improve
current measurement. If present, the correction factor is indicated on the rear label of the clamp
itself, indicated as:
K= X.xxx
In case no label is present, set k = 1.000
1. Move the cursor to “DC Clamp” by means of the arrow
keys (,) and confirm with ENTER
2. The item: “DC clamp k” is shown at display to set the
corrective factor in a interval within 0.950 and 1.050. Set
the value by means of the arrow keys (, )
3. Confirm with SAVE and the “Saved data” message is
displayed for a while. Press ESC/MENU key to exit without
saving and to go back to the previous screen
15/05/10 15:34:26
DC clamp k
: 1.000
SAVE to store data
SET
I-V400w - I-V500w - SOLAR I-Vw - SOLAR I-Ve
EN - 13
5.2. EFF – SETTINGS FOR TESTING PV SYSTEMS (SOLAR I-VW OR SOLAR I-VE)
Further in this manual, the acronym MPPT (Multiple Power Point Tracker) shall indicate
the characteristic of the DC/AC converter (inverter), capable of maximizing the DC power
which can be taken from the photovoltaic field. See § 11.2 for further details.
5.2.1. Settings for PV systems with single-MPPT inverter - single-phase AC output
Check beforehand the settings made in MENUSETRemote Unit and check that you
have selected “SOLAR” as setting for parameter “R. unit”.
5.2.1.1. Instrument settings
1. Press MENU key, move the cursor to “EFF” by means of
the arrow keys (,) and confirm with ENTER. The
screen with the values of electrical parameters relative to
PV generator is displayed
15/05/10 15:34:26
Prp - - -
Irr - - - W/m2
Pnom 0.000 kW
Tc - - - °C
Te - - - °C
Pdc 0.0 kW
Vdc 0.000 V
Idc 0.0 A
ndc - - -
GO – Start rec
Select
EFF
2. Press ENTER key. The options Set PV plant and Set
Instrum. are displayed
3. By means of the arrow keys (,) to select Set Instrum.
and confirm with ENTER. The herewith screen is shown:
15/05/10 15:34:26
PRp - - -
Irr - - - W/m2
Pnom 0.000 kW
Tc - - - °C
Te - - - °C
Pdc 0.0 kW
Vdc 0.000 V
Idc 0.0 A
ndc - - -
Set PV plant
Set Instrum.
Select
EFF
4. By means of the arrow keys (,) the herewith
parameters are set:
IP (integration period) used by meter during yield test
recording. The values I 5s, 10s, 30s, 60s, 120s, 300s,
600s, 900s, 1800s, 3600s are selectable
The full scale (FS) of DC clamp used on DC current
measurement with selectable value within 1A 3000A
The full scale (FS) of AC clamp used on AC current
measurement with selectable value within 1A 3000A
5. Press the SAVE key to save the settings made; the
message “Data saved” will be displayed for a few
seconds. Press the ESC/MENU key to exit without saving
and go back to the previous screen.
15/05/10 15:34:26
IP
: 5 s
FS DC clamp
: 1000 A
FS AC clamp
: 1000 A
SAVE to store data
EFF
I-V400w - I-V500w - SOLAR I-Vw - SOLAR I-Ve
EN - 14
5.2.1.2. PV plant parameters
1. Press MENU key, move the cursor onto EFF by using the
arrow keys (,) and confirm with ENTER. The display
shows the values of the output electrical parameters of
the photovoltaic generator (DC side).
15/05/10 15:34:26
PRp - - -
Irr - - - W/m2
Pnom 0.000 kW
Tc - - - °C
Te - - - °C
Pdc 0.0 kW
Vdc 0.000 V
Idc 0.0 A
ndc - - -
GO – start rec
Select
EFF
2. Press the ENTER key. The instrument shows the
following options: “Set PV plant“ and “Set Instrum“.
3. Use the arrow keys (,) to select “Set PV plant” and
confirm with ENTER. The instrument shows the following
screen:
15/05/10 15:34:26
Prp - - - W/m2
Irr - - - W/m2
Pnom 0.000 kW
Tc - - - °C
Te - - - °C
Pdc 0.0 kW
Vdc 0.000 V
Idc 0.0 A
ndc - - -
Set PV plant
Set Instrument
Select
EFF
4. By means arrow keys ( , ) the herewith parameters
are set:
Pmax maximum nominal power of the PV
installation expressed in kW
Gamma coefficient of variation of power with the
temperature, standard parameter of PV module
(range: -0.3 -0.5%/°C typical)
Noct nominal working temperature of a PV cell,
standard parameter of PV module (range: 42 48°C
typical)
Te, Tc set of default values of environmental
temperature and PV module temperature. These
values are considered by the meter only without the
auxiliary probe connected to emote unit SOLAR-02
Corr. Type set the corrective term Ptpv for DC
efficiency calculation and for maximum DC efficiency
visualization (see § 5.2.3)
15/05/10 15:34:26
Pmax
: 3.500 kW
Gamma
: 0.45 %/°C
Noct
: 45 °C
Te
: 40 °C
Tc
: 45 °C
Corr. Type
:
T. Env
SAVE to store data
EFF
I-V400w - I-V500w - SOLAR I-Vw - SOLAR I-Ve
EN - 15
5.2.2. Settings for PV with single/multi MPPT inverter – single/three phase AC output
See § 11.2 for further details about the meaning of MPPT. This mode requires unsing the
remote unit MPP300 (optional). Check beforehand the settings made in
MENUSETRemote Unit and check that you have selected “MPP300” as setting for
parameter “R. unit”.
5.2.2.1. Instrument settings
1. Press the MENU key, position the cursor onto EFF by
using the arrow keys (,) and confirm with ENTER.
The display shows the screen here to the side, which
contains the global parameters of the system.
15/05/10 15:34:26
PRp - - -
Irr - - - W/m2
Pnom 150.0 kW
Tc - - - °C
Te - - - °C
Pdc - - - kW
Pac - - - kW
ndc - - -
nac - - -
GO - start Rec
Select
MPP
2. Press the ENTER key. The instrument shows the
following options: MPP300 status, System Par. and
Instrument settings.
3. Use the arrow keys (,) to select “Instrument
settings” and confirm with ENTER. The instrument shows
the following screen:
15/05/10 15:34:26
PRp - - -
Irr - - - W/m2
Pnom 150.0 kW
Tc - - - °C
Te - - - °C
Pdc - - - kW
Pac - - - kW
ndc - - -
nac - - -
MPP300 Status
Set PV plant
Set Instrum.
Select
MPP
4. By using the arrow keys ( , ) it is possible to set:
the integration period (IP) which can be used by the
instrument when testing the parameters of a PV
system. The following values can be selected: 5s, 10s,
30s, 60s, 120s, 300s, 600s, 900s, 1800s, 3600s
The FS of the DC clamp used for measuring DC
current with value selectable between 1A 3000A
The FS of the AC clamp used for measuring AC
current with value selectable between 1A 3000A
The type of AC clamp used: STD (standard) or FLEX
(flexible clamp)
The number of DC inputs to be used for measuring:
1, 1+2, 1+2+3
The type of AC electrical system: SINGLE, 4 wires
5. Press the SAVE key to save the settings made; the
message “Data saved” will be displayed for a few
seconds. Press the ESC/MENU key to exit without saving
and go back to the previous screen.
15/05/10 15:34:26
IP
: 5 s
FS DC clamp:
1000 A
FS AC clamp:
1000 A
Clamp Type:
STD
Dc inputs
1+2+3
Ac sytem
3phase
SAVE to store data
MPP
I-V400w - I-V500w - SOLAR I-Vw - SOLAR I-Ve
EN - 16
5.2.2.2. PV plant parameters
1. Press MENU key, position the cursor onto EFF by using
the arrow keys (,) and confirm with ENTER. The
display shows the screen here to the side, which contains
the global parameters of the system.
15/05/10 15:34:26
PRp - - -
Irr - - - W/m2
Pnom 150.0 kW
Tc - - - °C
Te - - - °C
Pdc - - - kW
Pac - - - kW
ndc - - -
nac - - -
GO – start rec.
Select
MPP
2. Press the ENTER key. The instrument shows the
following options: MPP300 status, Set PV plant. and Set
Instrum.
3. Use the arrow keys (,) to select “Set PV plant” and
confirm with ENTER. The instrument shows the following
screen:
15/05/10 15:34:26
PRp - - -
Irr - - - W/m2
Pnom 0.000 kW
Tc - - - °C
Te - - - °C
Pdc 0.0 kW
Vdc 0.000 V
Idc 0.0 A
ndc - - -
MPP300 status
Set PV plant
Set instrum.
Select
MPP
4. By using the arrow keys ( , ) it is possible to set:
Pmax maximum rated power of PV installation
expressed in kW
Range coefficient of power variation with
temperature, characteristic parameter of PV modules
(typically in range: -0.3 -0.5%/C)
Noct rated operating temperature of the cell,
characteristic parameter of PV modules (typically in
range: 42 48°C)
Te, Tc setting of default values of environmental
and PV module temperatures. These values are taken
into consideration by the instrument only when probe
is not connected to unit SOLAR-02
Corr. Type Setting of the compensation
relationship on the calculation of Pdc power and the
maximization of DC performance (see § 5.2.3)
15/05/10 15:34:26
Pmax
: 3.500 kW
Gamma
: 0.45 %/°C
Noct
: 45 °C
Te
: 40 °C
Tc
: 45 °C
C
orr.Type.
:
T. Env
SAVE to store data
MPP
I-V400w - I-V500w - SOLAR I-Vw - SOLAR I-Ve
EN - 17
5.2.2.3. MPP300 status
If SOLAR I-Vw or SOLAR I-Ve is near MPP300, the general parameters of MPP300 may
be displayed.
1. Position the cursor onto EFF by using the arrow keys
(,) and confirm with ENTER. The display shows the
screen here to the side, which contains the global
parameters of the system.
15/05/10 15:34:26
PRp - - -
Irr - - - W/m2
Pnom 150.0 kW
Tc - - - °C
Te - - - °C
Pdc - - - kW
Pac - - - kW
ndc - - -
nac - - -
GO – start rec.
Select
MPP
2. Press the ENTER key. The instrument shows the
following options: MPP300 status, Set PV plant and Set
Instrum.
3. Use the arrow keys (,) to select “MPP300 status”
and confirm with ENTER. The instrument shows the
screen here to the side, which indicates the main general
parameters of the instrument.
15/05/10 15:34:26
Power supply P.Sup.
Battery In use
Charge 99%
SOLAR-02
detected
SI
Version 1.01
SN 11010030
MPP300 status
Set PV plant
Set instrum.
Select
MENU
I-V400w - I-V500w - SOLAR I-Vw - SOLAR I-Ve
EN - 18
5.2.3. Selection of the compensation relationship of temperature effects
This option allows selecting the relationship to be used to correct the measurements
performed according to the modules’ temperature. The following correction modes are
available:
- T.mod.: Correction factor Rfv2 related to PV module Temp. (Italian guideline CEI-82-25)
- T.env: Correction factor Rfv2 related to environment Temp. (Italian guideline CEI-82-25)
- ndc: PRp (Performance ratio for active power) corrected by PV module Temp.
CAUTION
If it’s performed a test according to Italian guideline it is recommended to select
“T.env.” correction
Corr.
Type
Temperature (Tcel) PRp calculation Ref.
T.mod.
asTmodule_MeTcel
C)40Tcel (if
100
40)-(Tcel- 1
C)40Tcel (if 1
fv2
R
-
n
STC
p
ca
P
G
G
Rfv
P
PRp
2
CEI
82-25
T.amb.
800
Irr
20TambTcel NOCT
dc
asTmodule_MeTcel
n
ca
cel
p
STC
P
P
T
G
G
PRp
25
100
1
- - -
where:
Symbol Description Meas. unit
p
G
Irradiance on PV module surface
2
W/m
STC
G
Standard Irradiance = 1000
2
W/m
n
P
Nominal Power = sum of all power module (Pmax ) included in the part of PV plant under test
kW
ca
P
AC Active Power measured
kW
2Rfv
Thermal Coefficient factor
Absolute value of Pmax thermal coefficient
C%/
NOCT Normal Operating Cell Temperature (@ 800W/m2, 20°C, AM=1.5, vel. Aria =1m/s).
C%/
For further details see § 11.1
I-V400w - I-V500w - SOLAR I-Vw - SOLAR I-Ve
EN - 19
5.3. DB – MODULE DATABASE
The meter allows defining up to 30 different PV modules, further to a DEFAULT situation
(not editable and not erasable) which can be used as reference case when no piece of
information about the module under test is available.
The parameters which can be set, with reference to 1 module, are described below in
Table 1 together with their range, resolution and validity condition.
Symbol Description Range Resolution Condition
Nms Number of modules for string
1 50
1
Pmax Maximum nominal power of module
50 4800W
1W
01.0
max
max
P
IVP
mppmpp
Voc Open voltage
15.00 99.99V
100.0 320.0V
0.01V
0.1V
Voc Vmpp
Vmpp Voltage on point of maximum power
15.00 99.99V
100.0 320.0V
0.01V
0.1V
Voc Vmpp
Isc Short circuit current
0.5 15.00A
0.01A
Isc Impp
Impp Current on point of maximum power
0.5 15.00A
0.01A
Isc Impp
Toll -
Negative tolerance for Pmax provided
by the module manufacturer
0% 25.0%
0.1%
100*Tol-/Pnom< 25
0 99W
1
Toll +
Positive tolerance for Pmax provided
by the module manufacturer
0 25%
0.1%
100*Tol+/Pnom< 25
0 99W
1
Alpha Isc temperature coefficient
-0.1000.100%/°C
0.001%/°C
100*Alpha / Isc 0.1
-15.00 15.00mA/°C
0.01mA/°C
Beta Voc temperature coefficient
-0.99 -0.01%/°C
0.01%/°C
100*Beta/Voc 0.999
-0.999 -0.001V/°C
0.001V/°C
Gamma Pmax temperature coefficient
-0.99 -0.01%/°C
0.01%/°C
NOCT Nominal working temperature of cell
0 100°C
1°C
Tech. Effects due to PV technology
STD (standard)
CAP(capacitive eff.)
HIT (hybrid techn.)
Degr
Percentage of annual performance
degradation
0.0 25.0%/yr
0.1%/yr
Table 1: Typical parameters of PV modules
CAUTION
The “Tech” item is referred to the choose of the technology of the module
on test. Select the “STD” option for test on “STANDARD” PV modules,
“CAP” option for test on higher capacitive effects PV modules or HIT
(modules with HIT/HIP hybrid technology
A wrong choose of the type of technology can lead to a negative outcome of
the final test
The “Degr” item is referred to the power performance degradation of a PV
module/strings/field expressed in annual percentage (maximum limit set =
25%)
I-V400w - I-V500w - SOLAR I-Vw - SOLAR I-Ve
EN - 20
5.3.1. How to define a new PV module
1. Move the cursor to “DB” by means of the arrow keys
(,) and confirm with ENTER. The display shows the
screen with:
The type of selected module
The parameter associated to the module (see Table 1)
2. Select the “DEFAULT” module by means of the arrow
keys (,) and confirm with ENTER.
15/05/10 15:34:26
Type : DEFAULT
Pmax = 185 W
Voc = 44.5 V
Vmpp = 37.5 V
Isc = 5.40 A
Impp = 4.95 A
Toll- = 0 %
Select
DB
3. Press ENTER, select the “New” command and confirm
again with ENTER. Use the arrow keys (,) to scroll all
internal parameters.
15/05/10 15:34:26
Type : DEFAULT
Pmax = 185 W
Voc = 44.5 V
Vmpp = 37.5 V
Isc = 5.40 A
Impp = 4.95 A
Toll- = 0 %
New
Select
DB
4. By using the internal virtual keyboard it is possible to
define the name of the module (ex: SUNPOWER 210) by
means the arrow keys (,,,). Press ENTER to digit
the characters of the desired name.
5. Press the SAVE key to save the inserted name of the
module as defined or ESC/MENU key to exit without
saving.
15/05/10 15:34:26
Type :
Pmax = 185 W
Voc = 44.5 V
KEYBOARD
SUNPOWER 210
ABCDEFGHI J KLMNOP
QRS T UVWXYZ- + 0 1 2 3
4 5 6 7 8 9 SPACE DEL
6. Digit the value of each parameter of the defined module
(see Table 1) based on the manufacturer’s data sheet.
Move the cursor to the row of the parameter by means of
the arrow keys (,) and set the value by means of the
arrow keys (,). Press and hold (,) for a quick
setting of values.
7. Confirm with SAVE and the “Saved data” message is
displayed for a while. Press ESC/MENU key to exit
without saving and to go back to the previous screen.
15/05/10 15:34:26
Type : SUNPOWER 210
Pmax = 0 W
Voc = 0.0 V
Vmpp = 0.0 V
Isc = 0.00 A
Impp = 0.00 A
Toll- = 0 %
DB
CAUTION
If the value of any parameter is unknown press and hold the HELP key for
some seconds to set the default values
After pressing the SAVE key, the meter checks all the conditions shown in
Table 1 and, if one or more of these conditions do not occur, some error
messages are shown by the display (§ 6.5) and the meter does not save
the configuration before any error is solved. Solve the error condition
before saving.
I-V400w - I-V500w - SOLAR I-Vw - SOLAR I-Ve
EN - 21
5.3.2. How to modify a PV module
1. Select the PV module to be modified from the internal
database by means of arrow keys (,).
2. Press the ENTER key and select the “Modify” command
by means the arrow key ().
3. Confirm the selection with ENTER.
15/05/10 15:34:26
Type: SUNPOWER210
Pmax = 210 W
Voc = 47.70 V
Vmpp = 40.00 V
Isc = 5.75 A
New
Modify
Delete
Del. All
Select
DB
4. By using the internal virtual keyboard it is possible to
define a different name of the module by means of arrow
keys (,,,). Press ENTER to digit any character of
the desired name.
5. Press the SAVE key to save the new name of the module
as defined or to access the new setting of parameters.
15/05/10 15:34:26
Type: SUNPOWER210
Pmax = 185 W
Voc = 44.5 V
KEYBOARD
S
UNPOWER
210
ABCDEFGHI J KLMNOP
QRS T UVWXYZ- + 0 1 2 3
4 5 6 7 8 9 SPACE DEL
SAVE/ESC
6. Select the desired parameters to be modified by means of
arrow keys (,) and change values by means of arrow
keys (,). Press and hold the (,) for a quick setting
of values. If the value of any parameter is unknown, press
and hold the HELP key for some seconds to set the
default values.
7. Confirm with SAVE and the “Saved data” message is
displayed for a while. Press ESC/MENU key to exit
without saving and to go back to the previous screen.
15/05/10 15:34:26
Type : SUNPOWER 210
Pmax = 210 W
Voc = 47.70 V
Vmpp = 40.00 V
Isc = 5.75 A
Impp = 5.25 A
Toll- = 5 %
DB
5.3.3. How to delete a PV module
1. Select the PV module to be deleted from the internal
database by means of arrow keys (,).
2. Press the ENTER key and select “Delete” command by
means of arrow key () to delete the selected module.
3. Press the ENTER key and select “Del. All” command by
means of arrow key () to delete all modules in the
database (except for “DEFAULT”).
4. Confirm the selection with ENTER or press ESC/MENU to
exit
15/05/10 15:34:26
Type: SUNPOWER210
Pmax = 210 W
Voc = 47.70 V
Vmpp = 40.00 V
Isc = 5.75 A
New
Modify
Delete
Del. All
Select
DB
CAUTION
It is not possible to modify or delete the “DEFAULT” PV module which is the
standard reference factory module.
I-V400w - I-V500w - SOLAR I-Vw - SOLAR I-Ve
EN - 22
6. HOW TO OPERATE
6.1. TESTING PV SYSTEMS (SOLAR I-VW OR SOLAR I-VE)
For the sake of simplicity, further in this manual, the word “string” will be used, although
often the term “photovoltaic field” would be more correct. From the point of view of the
instrument, the management of a single string or of more parallel strings (photovoltaic field)
is identical. Furthermore, the acronym MPPT (Multiple Power Point Tracker) shall indicate
the characteristic of the DC/AC converter (inverter), capable of maximizing the DC power
which can be taken from the photovoltaic field (see the § 11.2 for further details), the
acronym PRp shall indicated the Performance ratio (evaluated on active powers).
CAUTION
For the evaluation of the PRP only, the measurement of the DC (voltage
and current) is not strictly necessary
Conversely it is necessary if you want to evaluate the performance of the
photovoltaic section (ndc) and DC / AC conversion (nac)
Simbol Description Unit
PRp Performance Ratio (calculated through Active power)
Irr Irradiance W/m2
Pnom Total Nominal power of the PV section under test. kW
Tc Module Temperature °C
Te Environment Temperature °C
Pdc, Pdcx Total DC power measured, DC power of PV field x (x=1,2,3) kW
Pac, Pacx Total AC power measured, AC power of phase x (x=1,2,3,) kW
ndc DC efficiency
nac AC efficiency
Vdc, Vdcx DC Voltage, DC voltage of PV field x (x=1,2,3) V
Idc, Idcx DC current, DC current of PV field x (x=1,2,3) A
Vac, Vacx AC Voltage, AC voltage of PV field x (x=1,2,3) V
Iac, Iacx AC current, AC current of PV field x (x=1,2,3) A
Symbols description
Loading...