HT INSTRUMENTS PVCHECKs-PRO Commissioning Tester User Manual

HT INSTRUMENTS PVCHECKs-PRO Commissioning Tester

Product Information

Specifications

• Product Name: PVCHECKs-PRO
• Release Version: EN 1.00 – 06/10/2023

Precautions and Safety Measures

It is important to follow these precautions and safety measures to ensure safe and proper usage of the PVCHECKs-PRO:

1. Read the user manual carefully before using the instrument.
2. Do not expose the instrument to extreme temperatures or humidity.
3. Avoid dropping or subjecting the instrument to strong impacts.
4. Do not use the instrument if it appears damaged or malfunctioning.
5. Only use the instrument for its intended purpose.

General Description

The PVCHECKs-PRO is a versatile instrument designed for measuring polarization index (PI) and dielectric absorption ratio (DAR) in electrical systems. It provides accurate and reliable measurements for assessing insulation condition.

Foreword

The foreword section provides an introduction to the instrument and its capabilities.

Instrument Functions

This section describes the various functions and features of the PVCHECKs-PRO, including its measurement capabilities and user interface.

Preparation for Use

Before using the PVCHECKs-PRO, it is important to perform the following preparation steps:

Initial Checks

Ensure that all necessary accessories are present and in good condition. Check for any visible damage to the instrument.

Instrument Power Supply

Make sure the instrument is properly powered, either by using the provided power adapter or by ensuring the batteries are charged.

Storage

When not in use, store the PVCHECKs-PRO in a clean and dry environment. Avoid exposing it to extreme temperatures or humidity.

Nomenclature

This section provides a detailed description of the instrument’s components and their functions.

Description of the Instrument

Provides an overview of the physical features and components of the PVCHECKs- PRO.

Keyboard Description

Explains the functions and operation of the instrument’s keyboard.

Initial Screen

Describes the information displayed on the instrument’s initial screen and its significance.

General Menu

The general menu provides access to various settings and options. This section explains each menu item and its purpose.

Operating Instructions

Follow these step-by-step instructions to operate the PVCHECKs-PRO:

Storing Results

This section explains how to save measurement results for future reference.

Saving Measures

Instructions on how to save measurement results using the PVCHECKs-PRO.

Recalling and Deletion of Saved Data

Explains how to recall and delete previously saved data on the instrument.

Connecting the Instrument to the PC

Instructions on how to establish a connection between the PVCHECKs-PRO and a computer for data transfer and analysis.

Maintenance

This section provides guidelines for maintaining and cleaning the PVCHECKs-PRO to ensure optimal performance and longevity.

Technical Specifications

Here are the technical specifications of the PVCHECKs-PRO:

Measurement of Polarization Index (PI)

Explains how the instrument measures the polarization index and its significance in assessing insulation condition.

Dielectric Absorption Ratio (DAR)

Describes the measurement of the dielectric absorption ratio and its importance in evaluating insulation quality.

Assistance

If you require assistance with the PVCHECKs-PRO, refer to the following:

Warranty Conditions

Details the warranty conditions provided by HT ITALIA.

Assistance

Instructions on how to seek assistance for any issues or inquiries regarding the instrument.

FAQ

1. Q: How do I calibrate the PVCHECKs-PRO?

A: The PVCHECKs-PRO does not require calibration. It is factory-calibrated and ready for use.

1. Q: Can I use the instrument in wet conditions?

A: No, the PVCHECKs-PRO is not designed for use in wet or damp environments. It should be kept dry at all times.

1. Q: How often should I perform maintenance on the instrument?

A: Regular maintenance is recommended to ensure optimal performance. Follow the guidelines provided in the maintenance section of the user manual.

Copyright HT ITALIA 2023

PVCHECKs-PRO User manual

Release EN 1.00 – 06/10/2023

PVCHECKs-PRO

PRECAUTIONS AND SAFETY MEASURES

The instrument has been designed in compliance with directive IEC/EN61010-1 relevant to electronic measuring instruments. Before and while carrying out measurements, observe the following indications and read all notes preceded by the symbol with the utmost attention. Do not carry out any voltage or current measurement in humid environments Do not carry out any measurements in case gas, explosive materials or flammables are
present, or in dusty environments Avoid any contact with the circuit being measured if no measurements are being
carried out. Avoid contact with exposed metal parts, with unused measuring probes, etc. Do not carry out any measurement in case you find anomalies in the instrument such
as deformation, breaks, absence of display on the screen, etc. Pay special attention when measuring voltages higher than 25V in special
environments and 50V in normal environments, since a risk of electrical shock exists. In this manual, and on the instrument, the following symbols are used:
Warning: observe the instructions given in this manual; improper use could damage the instrument or its components.
High voltage danger: electrical shock hazard.
Double insulation
DC Voltage or Current
AC Voltage
Connection to earth
1.1. PRELIMINARY INSTRUCTIONS The instrument has been designed to be used in the environmental conditions
specified in § 10.3. The presence of significantly different environmental conditions can compromise the safety of the instrument and the operator. In any case, before using, wait until the conditions inside the instrument are comparable to the conditions of the environment in which it is operating The instrument may be used for measuring VOLTAGE and CURRENT in CAT III 1500V DC, CAT III 1000VAC with maximum voltage 1500VDC and 1000V AC between inputs. Do not use on circuits exceeding the limit values specified in § 10.1 We recommend following the normal safety rules devised to protect the user against dangerous currents and the instrument against incorrect use. Only the accessories provided together with the instrument will guarantee safety standards. They must be in good conditions and replaced with identical models, when necessary. Make sure that batteries are correctly installed. Before connecting the measuring cables to the circuit being measured, check that the desired function has been selected.
EN – 3

PVCHECKs-PRO
1.2. DURING USE Please carefully read the following recommendations and instructions:
CAUTION
Failure to comply with the caution notes and/or instructions may damage the instrument and/or its components or be a source of danger for the operator.
The symbol ” ” indicates a full charge level of the internal batteries. When battery charge decreases to a minimum level, the symbol ” ” appears on the display. In this case, stop testing and replace the batteries according to the indications given in § 9.2
The instrument can keep data stored even without batteries.
1.3. AFTER USE When measurements are complete, switch off the instrument by pressing and holding the ON/OFF key for some seconds. If the instrument is not to be used for a long time, remove the batteries and follow the instructions given in§ 3.3.
1.4. DEFINITION OF MEASUREMENT (OVERVOLTAGE) CATEGORY Standard “IEC/EN61010-1: Safety requirements for electrical equipment for measurement, control and laboratory use, Part 1: General requirements”, defines what measurement category, commonly called overvoltage category, is. Al § 6.7.4: Measured circuits, reads: 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 on installations inside buildings. 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 standard requires that the transient withstanding capability of the equipment is made known to the user.
EN – 4

PVCHECKs-PRO

GENERAL DESCRIPTION

2.1. FOREWORD This instrument has been designed to carry out quick tests (IVCK) on photovoltaic (PV) modules/strings in compliance with standard IEC/EN62446.
2.2. INSTRUMENT FUNCTIONS The instrument has the following features: Continuity test of protective conductors (RPE) Test with test current > 200mA in compliance with standards IEC/EN62446, and
IEC/EN61557-4 Manual calibration of measuring cables. Measurement of insulation resistance on PV modules/strings (M) Test voltages of 250V, 500V, 1000V, 1500VDC in compliance with standards
IEC/EN62446 and IEC/EN61557-2 2 available measuring modes
DUAL Measurement in a sequence of the insulation between the string’s positive pole (+) and PE and between the string’s negative pole and PE.
TMR single timed measurement between the string’s negative pole and PE. GFL (Ground Fault Locator) function to search for positions with a low insulation among the modules of a PV string (see § 6.5). Measurement of open-circuit voltage and short circuit current on monofacial or bifacial PV modules/strings in compliance with standard IEC/EN62446 (IVCK) Measurement of open-circuit voltage Voc on monofacial and bifacial PV
modules/strings up to 1500VDC. Measurement of short-circuit current Isc on monofacial and bifacial PV modules/strings
up to 40A. Measurement of front and back irradiance through Bluetooth with remote unit
SOLAR03 and reference cell HT305 Display of results in OPC and STC conditions Immediate evaluation (OK/NO) of test results The instrument is also provided with an internal Database capable of storing up to 64 PV modules (to be uploaded by the user), with backlit display, internal contrast adjustment and a HELP key able to give a valid help to the operator while connecting the instrument to the installation. An AutoPowerOFF function, which can also be deactivated, is available after approx. 5 minutes
EN – 5

PVCHECKs-PRO

PREPARATION FOR USE

3.1. INITIAL CHECKS Before shipping, the instrument has been checked from an electric as well as a mechanical point of view. All possible precautions have been taken so that the instrument is delivered undamaged. However, we recommend checking it to detect any damage possibly suffered during transport. In case anomalies are found, immediately contact the dealer. We also recommend checking that the packaging contains all components indicated in § 10.4. In case of discrepancy, please contact the Dealer. In case the instrument should be returned, please follow the instructions given in § 12 3.2. INSTRUMENT POWER SUPPLY The instrument is powered by 6×1.5V alkaline batteries of type AA LR06 or 6 x 1.2V NiMH rechargeable batteries of type AA. The symbol ” ” indicates the charge level of the batteries. For battery replacement, please refer to § 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. A short pressing of the key turns on the display’s backlighting. To save battery efficiency, backlighting automatically turns off after approx. 30 seconds. A frequent use of backlighting reduces the batteries life. 3.3. STORAGE The instrument has been designed to be used in the environmental conditions specified in § 10.3. The presence of significantly different environmental conditions can compromise the safety of the instrument and the operator and/or not guarantee precise measurements. After a long period of storage and/or in extreme environmental conditions, before using, wait until the conditions inside the instrument should be comparable to the conditions of the environment in which it is operating.
EN – 6

PVCHECKs-PRO

NOMENCLATURE

4.1. DESCRIPTION OF THE INSTRUMENT CAPTION: 1. Inputs 2. LCD display 3. Keys ,,,, SAVE/ENTER 4. Compartment of connector for optical/USB cable 5. Key GO/STOP 6. Key HELP/ 7. Key ESC/MENU 8. Key ON/OFF
Fig. 1: Description of the front part of the instrument CAPTION: 1. P, N inputs for DC voltage measurement (IVCK) / Insulation (M) 2. E, C inputs for continuity tests (RPE)
Fig. 2: Description of the upper part of the instrument CAPTION: 1. Connector for connecting optically insulated optical/USB output cable
Fig. 3: Description of the instrument’s side
EN – 7

PVCHECKs-PRO
4.2. KEYBOARD DESCRIPTION The keyboard includes the following keys:
ON/OFF key to switch on/off the instrument
ESC key to exit the selected menu without confirming MENU key to go back to the instrument’s general menu at any time Keys to move the cursor within the various screens in order to select programming parameters SAVE/ENTER key to save internal parameters and the results of measurements (SAVE) and to select the desired functions from the menu (ENTER) GO key to start measuring STOP key to stop measuring HELP key to access the help on line and display, for each selected function, possible connections between the instrument and the system Key (long pressing) to adjust the display’s backlight

4.3. INITIAL SCREEN When switching on the instrument, the initial screen appears for a few seconds. It shows: The instrument model (PVCHECKs-PRO) The manufacturer’s name The serial number (SN:) of the instrument The hardware (HW) and firmware (FW) version in the
instrument’s memory The date of the last instrument calibration (Calibration
date:)

PVCHECKs-PRO
HT ITALIA SN: 23020002
HW: 1.00 FW: 1.01 Calibration date: 14/02/2023

After a few seconds, the instrument switches to the last function selected.

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PVCHECKs-PRO

GENERAL MENU

Pressing the ESC key in any condition of the instrument allows going back to the general menu, in which internal parameters may be set and the desired measuring function may be selected. Use the cursor to select one of the options and confirm with ENTER to access the desired function.

MENU

15/03 ­ 18:04

DMM : M u l t i m e t e r

UREM : Remote Unit

IVCK : PVTest sequence

M

: Insulation

GFL : Find Insul.fault

RPE : Continuity

DB

: PVMod.Database

MENU SET MEM
PC

15/03 ­ 18:04
: Settings : Data saved
: Data transfer

5.1. SET ­ INSTRUMENT SETTINGS

Move the cursor to SET by using the arrow keys (,) and SET 15/10 ­ 18:04

confirm with ENTER. The instrument shows the screen which

allows access to internal settings. Settings will be maintained L a n g u a g e

also after switching off the instrument.

Date and time

General settings

Irradiance

Information

Operator Name

5.1.1. Language

Move the cursor to Language by using the arrow keys (,) SET 15/10 ­ 18:04

and confirm with ENTER. The instrument shows the screen which allows setting the system language. Select the desired

English Italiano

option by using the arrow keys (,). Press the ENTER key E s p a ñ o l

to confirm or the ESC key to go back to the previous screen.

Deutsch Français

Portuguese

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PVCHECKs-PRO

5.1.2. Date and time

Move the cursor to Date and time by using the arrow keys SET 15/10 ­ 18:04

(,) and confirm with ENTER. Subsequently, the screen to the side appears, so that the system’s date/time can be set. Select “Format” to set the European (“DD/MM/YY, hh:mm” EU) or American (“MM/DD/YY hh:mm” USA) format. Select

Format Year Month Day

: EU : 19 : 10 : 14

the desired option by using the arrow keys (,) and (, ). Hour

: 17

Press the ENTER key to confirm or the ESC key to go back to Minute

: 38

the previous screen.

5.1.3. General settings

Move the cursor to General settings by using the arrow keys SET 15/10 ­ 18:04

(,) and confirm with ENTER. The instrument shows the screen in which it is possible to enable/disable the auto power off function, key sound, display contrast and WiFi connection

AutoPowerOff Key sound Contrast

(see § 8)

WiFi

: OFF : OFF : 50 : OFF

Select the desired option by using the arrow keys (,).

Press the ENTER key to confirm or the ESC key to go back to

the previous screen.

5.1.4. Irradiance This section allows setting the minimum irradiance threshold for IVCK measurement.

1. Position the cursor onto “Irradiance” by using the arrow SET 15/10 ­ 18:04

keys (,) and confirm with ENTER. The display shows the screen containing item “Min. Irrad.

Min.Irrad.[W/m2]

: 700

[W/m2]”, which allows setting the minimum irradiance

threshold expressed in W/m2, used as a reference for

IVCK measurement.

3. To set the minimum irradiance threshold, use the arrow

keys ( , ). The value can be set in a range 100 1000 W/m2 in steps of 10 W/m2

Data saved

4. 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.

5.1.5. Info Move the cursor to Info by using the arrow keys (,) and confirm with ENTER. The instrument shows the initial screen as indicated in the screen to the side. Press the ESC key to go back to the main menu.

15/10 ­ 18:04
PVCHECKsPRO HT ITALIA
SN: 23020002 HW: 1.00 FW: 1.01
Calibration date: 14/02/2023

EN – 10

PVCHECKs-PRO

5.1.6. Operator name This option allows including the name of the operator who carried out the measurements using the instrument (max 12 digits). The chosen name will be included in the reports created by using the management software.

1. Use the arrow keys or to move the cursor to the SAVE 15/10 ­ 18:04

selected digit and press the SAVE/ENTER key to enter.

Keyboard

2. Move the cursor to “DEL” and press the SAVE/ENTER

key to delete the selected digit.

OPERATOR_

3. Move the cursor to “OK” and press the SAVE/ENTER key 0 1 2 3 4 5 6 7 8 9 0 ( ) %

to confirm the written name and go back to the previous Q W E R T Y U I O P < = > #

screen.

A S D F G H J K L + – * / &

Z X C V B N M . , ; : ! ? _

ÄÖÜßµÑÇÁÍÓÚÜ¿¡

ÁÈÉÙÇÄËÏÖÜÆØÅ

DEL

OK

EN – 11

PVCHECKs-PRO

OPERATING INSTRUCTIONS

6.1. DMM ­ MULTIMETER FUNCTION In this function, the instrument shows the RMS (root mean square) and DC (average) values of voltages between the positive (+) and negative (-) pole, between the positive (+) pole and earth connection (PE) and between the negative (-) pole and earth connection (PE), in order to check for the presence of AC components on input voltages.

1. Position the cursor onto DMM by using the arrow keys DMM 15/10 ­ 18:04

(,) and confirm with ENTER. The display shows the

screen to the side.

VPNrms

0

V

VPErms

0

V

VNErms

0

V

VPNdc

0

V

VPEdc

0

V

VNEdc

0

V

2. Connect the instrument to the PV string to be tested as shown in Fig. 4.

Fig. 4: Instrument connection for DMM Function

3. The voltage values are shown on the display as illustrated DMM 15/10 ­ 18:04

in the screen to the side.

VPNrms

1480

V

VPErms

750

V

VNErms

748

V

VPNdc

1420

V

VPEdc

720

V

VNEdc

-726

V

CAUTION
The results of function DMM cannot be saved in the instrument’s memory.
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PVCHECKs-PRO

6.2. UREM ­ REMOTE UNIT This section manages all operations which can be performed by using the remote unit SOLAR03, which can also be used for IVCK measurements. In particular, it is possible to: Through Bluetooth connection, search for a remote unit SOLAR03, which can be
managed by the instrument, adding it to the instrument’s internal list (max 5 remote units); Select or cancel a remote unit SOLAR03 among those present in the list; Pair/unpair a remote unit SOLAR03 to/from the instrument so that it can be
automatically recognized upon every connection; Display the information of the selected remote unit. Activate/stop recording environmental parameters (temperature/irradiance) on a
connected and active remote unit.

In particular, for each managed remote unit SOLAR03, the instrument displays:

Serial Number Item “Act” active (symbol “”) or inactive (no symbol) remote unit Item “Stat.” active connected (symbol ” “) or active disconnected (symbol ” “)
remote unit Item “Rec” active and connected unit currently recording (symbol ” “)

To associate a new remote unit SOLAR03 to the instrument, proceed as follows:

1. Position the cursor onto UREM by using the arrow keys UREM 15/10 ­ 18:04

(,) and confirm with ENTER

SOLAR03 Act. Stat. Rec

2. Use the arrow keys or to select item “Find” to start

searching for a remote unit SOLAR03. The message

“Please wait…” is shown on the display.

Please wait… Find Pair. Info Start
3. The instrument activates the Bluetooth connection and UREM 15/10 ­ 18:04 shows the screen to the side for a few seconds, searching SOLAR03 Act. Stat. Rec for a remote unit SOLAR03
SOLAR03 SN: – – –

Find Remote Unit

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PVCHECKs-PRO

4. On the remote unit SOLAR03, activate “Pairing” (refer to UREM 15/10 ­ 18:04

user manual of remote unit SOLAR03), so that it can be SOLAR03 Act Stat. Rec

recognized by the instrument. Once done, the serial

number of the remote unit and the message “Remote unit detected. Pair? (ENTER/ESC)” appear on the display as

SOLAR03

SN:

23051203

shown in the screen to the side.

Remote Unit detected Pair? (ENTER/ESC)
5. Confirm with ENTER on the instrument and on the UREM 15/10 ­ 18:04 remote unit SOLAR03 for pairing. From now on, the SOLAR03 Act Stat. Rec instrument and the remote unit are paired and it will not be 23051203 necessary to repeat these operations. To connect the instrument to the remote unit, it will be sufficient to switch them on, bring them near to each other and wait for pairing.

U.Rem. Connected
Find Unpair Info Start

6. To start recording on an active and connected remote unit, UREM 15/10 ­ 18:04

use the arrow keys or and select “Start””. The symbol SOLAR03 Act Stat. Rec

” ” will subsequently appear.

23051203

U.Rem. Connected

Find UnPair Info Start

In case the instrument has previously been associated to two or more remote units, in

order to switch from a remote unit to another:

7. Use the arrow keys or and select “UnPair” and UREM 15/10 ­ 18:04 confirm with ENTER to unpair the current remote unit. To SOLAR03 Act Stat. Rec carry out this operation, it is not necessary that the 23051203 currently associated remote unit is also connected to the 23061215

instrument.

8. Use the arrow keys (,) to select the new remote unit.

The new unit must be switched on and be located within

the connection range of the instrument.

9. Use the arrow keys or and select “Pair” and confirm

with ENTER to connect the remote unit to the instrument. 10.The previously unpaired unit can also be deleted from the

U.Rem. Connected

list using “Del”.

Find Unpair Info Start

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PVCHECKs-PRO

11.Use the arrow keys or to select “Info” to display the UREM 15/10 ­ 18:04

following information on the active and connected remote unit SOLAR03: Model Serial Number

Remote unit
SOLAR03
HT ITALIA

Internal FW and HW version

SN:

23051203

Status of possible ongoing recording Residual memory available for recordings Status of internal battery

HW: FW: Status: Free mem.:

1.02 1.00 No Rec. 0g, 2h

Battery:

53%

EN – 15

PVCHECKs-PRO

6.3. RPE ­ CONTINUITY MEASUREMENT ON PV MODULES/STRINGS/FIELDS The purpose of this measurement is performing a continuity test of the protective and equipotential conductors (e.g.: from rod to earth and connected foreign earth) and earth rods of SPDs on PV installations. The test must be carried out using a test current > 200mA in compliance with standards IEC/EN62446-1 and IEC/EN61557-4.

CAUTION
We recommend a preliminary check of correct functioning of the instrument before carrying out a measurement by shorting input terminals E and C, checking an almost zero continuity value and an out-of-scale value with terminals E and C open

6.3.1. Calibration of measuring cables

1. Position the cursor onto RPE by using the arrow keys RPE 15/10 ­ 18:04

(,) and confirm with ENTER. The display shows the

following screen:

R

—

Itest – – – mA

STD 2.00 MODE Lim.

– – – ><

2. Use the arrow keys or and select the position “><“. RPE 15/10 ­ 18:04

The display shows the screen to the side.

R

—

Itest – – – mA

STD 2.00 MODE Lim.
3. Connect the measuring cables to each other as shown in Fig. 5.

– – – ><

Fig. 5: Compensation of the measuring cables resistance EN – 16

PVCHECKs-PRO

4. Use the arrow keys or and select the position “><“. RPE 15/10 ­ 18:04

The display shows the screen to the side.

R

—

Itest – – – mA

STD 2.00 MODE Lim.

5. Press the GO/STOP key to start calibration. Messages RPE

“Measuring…” followed by “Verification” and “Zeroing”

are shown in a sequence on the display.

R

15/10 ­ 18:04
– – –

Itest – – –

– – – ><
mA

STD MODE

Measuring…
2.00 Lim.

– – – ><

6. At the end of the compensation procedure, in case the RPE

15/10 ­ 18:04

measured resistance value is 5, the instrument emits a double tone to signal the positive result of the test and

R

—

displays the value of the compensated resistance of the cables, which will be subtracted from all the subsequent

Itest – – –

mA

continuity measurements, at the bottom on the right side

of the display.

STD 2.00 MODE Lim.

0.06 ><

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PVCHECKs-PRO

6.3.2. Carrying out continuity measurements in Standard (STD) mode

1. Position the cursor onto RPE by using the arrow keys RPE

15/10 ­ 18:04

(,) and confirm with ENTER. The display shows the following screen. The symbol “STD” is shown on the R

—

display.

Itest – – – mA

STD 2.00 MODE Lim.

— ><

2. Use the arrow keys or and select the position “Lim.”. RPE

15/10 ­ 18:04

The display shows the screen to the side. 3. Use the arrow keys (,) to set the limit reference R

– – –

threshold for continuity measurement, which can be selected in a range between 0.01 9.99 in steps of

Itest – – –

0.01 (please remember that standard IEC/EN62446-1

does not establish a limit value for resistance and typical

values are approx. 1 or 2).

STD 2.00

MODE Lim.

mA
— ><

4. Carry out the initial calibration of the measuring cables (see § 6.3.1).

5. Connect the instrument to the PV module/string being tested and to the main earth node of the system as shown in Fig. 6.

Fig. 6: Connection of instrument for continuity measurement on structures of the PV installation
CAUTION
Upon pressing the GO/STOP key, different error messages can be displayed by the instrument (§ 6.3.4) and, therefore, the test cannot be started. Check and eliminate, if possible, the problem causing the error message before going on with the test.
EN – 18

PVCHECKs-PRO

6. Press the GO/STOP key to start the test. In case no error RPE

conditions occur, the instrument displays the message

“Measuring…” as shown in the screen to the side.

R

15/10 ­ 18:04
—

Itest – – – mA

STD MODE

Measuring…
2.00
Lim.

0.06 ><

7. At the end of measurement, the instrument provides the RPE

15/10 ­ 18:04

value of resistance of the object being tested. If the result

is lower than the set maximum limit value, the instrument R

0.23

shows the message “OK” (value lower or equal to the set limit threshold), otherwise it displays the message “NO

Itest 210

OK” (value higher than the set limit threshold) as shown

in the screen to the side.

8. Press the SAVE key to store the test result in the instrument’s memory (see § 7.1) or the ESC/MENU key to STD

OK
2.00

exit the screen without saving and go back to the main MODE Lim.

measuring screen.

mA
0.06 ><

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PVCHECKs-PRO

6.3.3. Carrying out continuity measurements in Timer (TMR) mode

1. Position the cursor onto RPE by using the arrow keys RPE

15/10 ­ 18:04

(,) and confirm with ENTER. The display shows the

following screen.

R

—

2. Use the arrow keys (,) to select the Timer mode. The symbol “TMR” is shown on the display.

Itest – – –

mA

T

— s

TMR 2.00 MODE Lim.

12s Time

— ><

3. Use the arrow keys or and select the position “Lim.”. RPE

15/10 ­ 18:04

The display shows the screen to the side. 4. Use the arrow keys (,) to set the limit reference R

– – –

threshold for continuity measurement, which can be selected in a range between 0.01 9.99 in steps of

Itest – – –

0.01 (please remember that standard IEC/EN62446-1 T does not establish a limit value for resistance and typical

– – –

values are approx. 1 or 2).

TMR 2.00

12s

MODE Lim.

Time

mA s
— ><

5. Use the arrow keys or and select the position RPE

15/10 ­ 18:04

“Time”. The display shows the screen to the side. 6. Use the arrow keys (,) to set the duration of R

—

continuity measurement (Timer), which can be selected in a range between 3s 99s in steps of 3s.

Itest – – –

mA

T

— s

TMR 2.00 MODE Lim.

12s Time

— ><

7. Carry out the initial calibration of the measuring cables (see § 6.3.1).
8. Connect the instrument to the PV module/string being tested and to the main earth node of the system as shown in Fig. 6.
CAUTION
Upon pressing the GO/STOP key, different error messages can be displayed by the instrument (§ 6.3.4) and, therefore, the test cannot be started. Check and eliminate, if possible, the problem causing the error message before going on with the test.

EN – 20

PVCHECKs-PRO

9. Press the GO/STOP key to start the test. In case no error RPE

15/10 ­ 18:04

conditions occur, the instrument starts a series of continuous measurements for the entire duration of the R

0.23

set Timer, emitting a short sound every 3s, and showing alternatively the messages “Measuring…” and

Itest 209

“Please wait…” as shown in the screen to the side. In this T

11

way, the operator can move from one point to another of

the place in which measurement is being carried out.

Please wait…

STD 2.00

12s

MODE Lim.

Time

mA S
0.06 ><

10.At the end of measurement, the instrument provides the RPE 15/10 ­ 18:04

maximum value among all those of the partial

measurements carried out. If the result is lower than the R

0.54

set maximum limit value, the instrument shows the message “OK” (value lower or equal to the set limit

Itest 209

threshold), otherwise it displays the message “NO OK” (value higher than the set limit threshold) as shown in the

T

0

screen to the side.

OK

STD 2.00

12s

11.Press the SAVE key to store the test result in the MODE Lim. Time

instrument’s memory (see § 7.1) or the ESC/MENU key to

exit the screen without saving and go back to the main

measuring screen.

mA S
0.06 ><

EN – 21

PVCHECKs-PRO

6.3.4. Anomalous situations

1. To zero the value of compensated resistance, carry out a RPE

15/10 ­ 18:04

new compensation procedure with a resistance higher

than 5 as, for example, with open leads. The message R

—

“Zero Reset” appears on the display.

Itest – – – mA

Zero Reset

STD 2.00 MODE Lim.

– – – ><

2. In case the instrument detects a voltage higher than 3V RPE

15/10 ­ 18:04

at its terminals E and C, it does not carry out the test,

gives out a long sound and displays the message “V.Input R

—

3V”.

Itest – – – mA

V.Input > 3V

STD 2.00 MODE Lim.

– – – ><

3. In case the instrument detects that the calibrated RPE 15/10 ­ 18:04

resistance is higher that the measured resistance, the

instrument gives out a long sound and displays the R

0.03

message: “Zeroing NO OK”

Itest 212

mA

Zeroing NO OK

STD 2.00 MODE Lim.

0.220 ><

4. In case the instrument detects a resistance higher than RPE 15/10 ­ 18:04

5 at its terminals, it gives out a long sound, zeroes the compensated value and displays the message “Zero Reset”.

R Itest

4.99

49

mA

Zero Reset

STD 2.00 MODE Lim.

– – – ><

5. In case it was detected that the calibrated resistance is RPE 15/10 ­ 18:04

higher than the measured resistance (for example

because cables different from the provided ones were R

—

used), the instrument gives a long acoustic signal and displays a screen similar to the one to the side. Carry out

Itest – – –

mA

a reset and make a new compensation of the cables.

STD MODE

Rcal > Rmeas
2.00 Lim.

– – – ><

EN – 22

PVCHECKs-PRO

6.4. M ­ MEASUREMENT OF INSULATION ON PV MODULES/STRINGS/FIELDS The purpose of this function is measuring the insulation resistance of the active conductors of PV modules, strings and fields according to the prescriptions of standards IEC/EN62446-1 and IEC/EN61557-2, with no need to use an external switch to shortcircuit the positive and negative terminals.

CAUTION
Insulation measurement can be performed on a single module, string or on an installation consisting in more strings connected in parallel.
Separate the string/installation from the inverter and from possible overvoltage protections.
If the module/string has a pole connected to earth, this connection must be temporarily interrupted.
In compliance with standard IEC/EN62446-1, test voltage Vtest must be rated voltage of the installation.
Standard IEC/EN61557-2 sets 1M as a minimum value of insulation resistance for installations with a rated voltage higher than 120V.
We recommend measuring insulation directly on the module/string/field located upstream of possible blocking diodes.
The instrument measures insulation in the following modes:
DUAL mode the instrument measures insulation in a sequence between the positive pole (+) and the PE reference and between the negative pole (-) and the PE reference of PV modules, strings or fields, and calculates overall resistance Rp.
TMR mode the instrument measures continuously (with a max duration of 999s) between terminal “N” and the PE reference, displaying the minimum resistance value obtained at the end of the selected time. In this way, the instrument also calculates the DAR (Dielectric Absorption Ratio) and PI (Polarization Index) parameters, if the duration of the test is suitable for these parameters’ calculation.

6.4.1. Measuring insulation ­ DUAL mode

1. Position the cursor onto M by using the arrow keys M

(,) and confirm with ENTER. The display shows the screen to the side. By using the arrow keys (,) again,

Vtest Riso

select the “DUAL” measuring mode, in position “MODE”.

15/10 ­ 18:04

(+)

(-)

– – –

— V

– – –

– – – M

Rp – – – M

VPN 0V

VPE 0V

VNE 0V

DUAL 1500V 1.00M

MODE Vtest.

Lim.

2. Use the arrow keys or and select the position M

“Vtest” to set the test voltage. Use the arrow keys (,) to select one of the following

Vtest Riso

test voltages (Vnom): 250, 500, 1000, 1500VDC. Please

remember that, in compliance with standard IEC/EN

62446-1, test voltage Vtest must be rated voltage of the

installation.

15/10 ­ 18:04

(+)

(-)

– – –

— V

– – –

– – – M

Rp – – – M

VPN 0V

VPE 0V

VNE 0V

DUAL 1500V 1.00M

MODE Vtest.

Lim.

EN – 23

PVCHECKs-PRO

4. Use the arrow keys or and select the position “Lim.”. M

15/10 ­ 18:04

The display shows the screen to the side. Use the arrow keys (,) to set the

minimum

limit

Vtest Riso

(+) – – – – –

(-) — V – – – M

threshold for insulation measurement, which can be selected among the values 0.05, 0.10, 0.23, 0.25, 0.50,

Rp – – – M

1.00, 50M. Please remember that standard IEC/EN61557-2 sets 1M as a minimum value of

VPN 0V

VPE 0V

VNE 0V

insulation resistance for installations with a rated voltage

higher than 120V.

DUAL 1500V 1.00M

MODE Vtest.

Lim.

6. Connect the instrument to the PV string to be tested as shown in Fig. 7. The test can be carried out also on more strings connected in parallel to each other. Please remember that it is also necessary to separate possible overvoltage protections connected to the cables of the string(s) and that it is recommended to measure upstream of possible blocking diodes.

Fig. 7: Instrument connection for insulation measurement in DUAL mode
CAUTION
Upon pressing the GO/STOP key, different error messages can be displayed by the instrument (§ 6.4.3) and, therefore, the test cannot be started. Check and eliminate, if possible, the problem causing the error message before going on with the test
Do not touch the masses of the modules during the measurement as they could be at dangerous potential even with the system disconnected due to the voltage generated by the instrument
The measurement could give incorrect results if the earth reference is not correctly connected to input E
We recommend a preliminary check of correct functioning of the instrument before carrying out a measurement by short-circuiting terminals P, N and E, checking an insulation value of almost zero and an out-of-scale value with terminals P, N and E open
EN – 24

PVCHECKs-PRO

7. Press and hold the GO/STOP key for at least 3s in M

order to start the test. In case no error conditions occur, the instrument displays the message “Measuring…” as

Vtest Riso

shown in the screen to the side. In field “Vtest”, the real

test voltage generated by the instrument is shown. Test

duration may vary according to the presence of stray

capacitances

15/10 ­ 18:04

(+)

(-)

– – –

— V

– – –

– – – M

Rp – – – M

VPN VPE VNE 1480V 750V -748V

Measuring…

DUAL 1500V 1.00M MODE Vtest. Lim.

8. The instrument carries out the following measurements in M

15/10 ­ 18:04

a sequence: Insulation

between

positive

pole

(+)

of

the

string

and

Vtest Riso

(+) 1510 >100

(-) 1515 V >100 M

earth connection Insulation between negative pole (-) of the string and

Rp >100 M

earth connection Calculation of the value of resistance Rp given by the

VPN VPE VNE 1480V 750V -730V

parallel of measurements (+) and (-)

OK

If “RpLim”, the instrument shows the message “OK”, to

DUAL MODE

1500V 1.00M Vtest. Lim.

indicate a positive result of measurement.

Press the SAVE key to store the test result in the instrument’s memory (see § 7.1) or the ESC/MENU key to exit the screen without saving and go back to the main measuring screen.

6.4.2. Measuring insulation ­ TMR mode

1. Position the cursor onto M by using the arrow keys M

15/10 ­ 18:04

(,) and confirm with ENTER. The display shows the screen to the side. By using the arrow keys (,) again,

Vtest(-) Ri(-) Time

– – – – – – –

select the “TMR” measuring mode, in position “MODE”. D A R – – – P I

V M s – – –

VPN 0V

VPE 0V

VNE 0V

TMR 1500V 1.00M

MODE Vtest.

Lim.

3s Time

2. Use the arrow keys or and select the position M

15/10 ­ 18:04

“Vtest” to set the test voltage. 3. Use the arrow keys (,) to select one of the following

Vtest(-) Ri(-) Time

– – – – – – –

test voltages (Vnom): 250, 500, 1000, 1500VDC. Please remember that, in compliance with standard IEC/EN

DAR

– – –

PI

62446-1, test voltage Vtest must be rated voltage of the installation.

VPN 0V

VPE 0V

V M s – – VNE 0V

TMR 1500V 1.00M

MODE Vtest.

Lim.

3s Time

EN – 25

PVCHECKs-PRO

4. Use the arrow keys or and select the position “Lim.”. M 15/10 ­ 18:04

The display shows the screen to the side. 5. Use the arrow keys (,) to set the minimum limit

Vtest(-) Ri(-) Time

– – – – – – –

threshold for insulation measurement, which can be selected among the values 0.05, 0.10, 0.23, 0.25, 0.50,

DAR

1.00, 50M. Please remember that standard IEC/

EN62446-1 sets 1M as a minimum value of insulation

– – – PI

VPN 0V

VPE 0V

resistance for installations with a rated voltage higher

than 120V.

TMR 1500V 1.00M

MODE Vtest.

Lim.

V M s – – VNE 0V
3s Time

6. Use the arrow keys or and select the position M

15/10 ­ 18:04

“Time”. The display shows the screen to the side. 7. Use the arrow keys (,) to set the measuring time in

Vtest(-) Ri(-) Time

– – – – – – –

the range: 3s ÷ 999s

DAR – – – PI

V M s – – –

VPN 0V

VPE 0V

VNE 0V

TMR 1500V 1.00M

MODE Vtest.

Lim.

3s Time

8. Connect the instrument to the PV string to be tested as shown in Fig. 8. The test can be carried out also on more strings connected in parallel to each other. Please remember that it is also necessary to separate possible overvoltage protections connected to the cables of the string(s) and that it is recommended to measure upstream of possible blocking diodes.

Fig. 8: Instrument connection for insulation measurement in TMR mode
CAUTION
Upon pressing the GO/STOP key, different error messages can be displayed by the instrument (§ 6.4.3) and, therefore, the test cannot be started. Check and eliminate, if possible, the problem causing the error message before going on with the test.
EN – 26

PVCHECKs-PRO

9. Press and hold the GO/STOP key for at least 3s in M

15/10 ­ 18:04

order to start the test. In case no error conditions occur, the instrument displays the message “Measuring…” as

Vtest(-) Ri(-) Time

– – – – – – –

shown in the screen to the side. In field “Vtest (-)”, the real test voltage generated by the instrument is shown.

DAR

– – –

PI

VPN

VPE

0V

0V

V M s – – VNE 0V

Measuring…

TMR 1500V 1.00M

MODE Vtest.

Lim.

10.If “Ri(-)Lim”, the instrument shows the message “OK” to M

15/10 ­ 18:04

indicate the positive result of measurement. If the measuring time is 60s, the instrument shows on

Vtest(-) Ri(-) Time

1540 >100
600

the display the value of parameter Absorption Ratio) (see § 11.2).

DAR

((Dielectric

DAR

1.41

PI

If the measuring time is 600s, the instrument shows on the display both the value of parameter DAR ((Dielectric

VPN 0V

VPE 0V

Absorption Ratio) and the value of parameter PI

(Polarization Index) (see § 11.1).

TMR

OK
1500V 1.00M

MODE Vtest.

Lim.

Press the SAVE key to store the test result in the

instrument’s memory (see § 7.1) or the ESC/MENU key

to exit the screen without saving and go back to the main

measuring screen.

700s Time
V M s 1.02 VNE 0V
700s Time

EN – 27

PVCHECKs-PRO

6.4.3. Anomalous situations

1. In case the instrument detects one of the following M

15/10 ­ 18:04

conditions: “|VPN| > 1500V”, “|VPE| > 1500V” or “|VNE| > 1500V”, it stops measuring, gives out a long sound, and

Vtest Ins.re

(+) – – – – –

(-) — V – – – M

the message “V > LIM” appears on the display. Check the output voltage from the PV string.

Rp – – – M

VPN

VPE VNE

1500V 750V -750V

DUAL MODE

V > LIM
1500V 1.00M
Vtest. Lim.

2. In DUAL mode, in case the instrument, upon pressing the M 15/10 ­ 18:04

GO/STOP key, detects measuring, gives out a

a voltage VPN <0V, it stops long sound and the message

Vtest Ins.re

(+) – – – – –

(-) — V – – – M

Reverse P-N” appears on the display. Check polarity and the instrument’s connections to the PV string.

Rp – – – M

VPN

VPE VNE

-1480V -750V 748V

DUAL MODE

Reverse P-N

1500V 1.00M

Vtest.

Lim.

3. In DUAL mode, in case the instrument, upon pressing the M 15/10 ­ 18:04

GO/STOP key, detects measuring, gives out a

a voltage VPN<15V, it stops long sound and the message

Vtest Ins.re

(+) – – – – –

(-) — V – – – M

“VPN<15VDC” appears on the display. Check the output voltage from the PV string, which must be 30V.

Rp – – – M

VPN

VPE VNE

10V

5V

-5V

DUAL MODE

VPN < 15VDC

1500V 1.00M

Vtest.

Lim.

4. In DUAL mode, in case the instrument, upon pressing the M 15/10 ­ 18:04

GO/STOP key, detects that one conditions on measured voltages:

of

the

following V t e s t Ins.re

(+) – – – – –

(-) — V – – – M

RMS(VPN) – |(VPN) DC| <10 RMS(VPE) – |(VPE) DC| <10

Rp – – – M

RMS(VNE) – |(VNE) DC| <10 is not satisfied (presence of AC components on input

VPN 1480V

VPE VNE 750V -730V

voltages), it stops measuring, gives out a long sound and

the message “VAC > LIM” is shown on the Check the output voltages from the PV string.

display.

DUAL MODE

VAC > LIM
1500V 1.00M Vtest. Lim.

EN – 28

PVCHECKs-PRO

5. In case the instrument detects that the voltage between M 15/10 ­ 18:04

the positive and the negative pole is higher than the set test voltage, the message “VPN>Vtest” appears on the

Vtest Ins.re

(+) 1520 – – –

(-) 1510 V – – – M

display and the instrument stops the test because it does not comply with standard IEC/EN62446-1. Check the

Rp – – – M

rated voltage of the installation, change the parameter Vtest, if necessary, and repeat the test.

VPN 1480V

VPE VNE 750V -730V

DUAL MODE

VPN>Vtest
1500V 1.00M Vtest. Lim.

6. In case the instrument detects that Rp<Lim, the message M 15/10 ­ 18:04

“NOT OK” is shown on the display.

Vtest

(+) 1540

(-) 1520 V

Ins.re

0.1

100 M

Rp 0.1

M

VPN 1480V

VPE VNE 750V -730V

DUAL MODE

NOT OK
1500V 1.00M
Vtest. Lim.

EN – 29

PVCHECKs-PRO

6.5. GFL ­ SEARCHING FOR CONDITIONS OF LOW INSULATION ON PV STRINGS In GFL (Ground Fault Locator) function, the instrument can provide an indication about the position of a possible single fault of low insulation located in a string of the installation due, for example, to infiltrations of water or humidity in the junction boxes of PV modules. The instrument measures input voltages and, according to the unbalance between V(+) and V(-) with respect to earth, it detects the assumed position of the fault on the string.
CAUTION
The GFL function allows obtaining correct results ONLY with the following conditions: Test carried out upstream of possible blocking diodes, on a single
string disconnected from the inverter, from possible overvoltage protections and from functional connections to earth. Single fault of low insulation located at any position in the string Insulation resistance of the single fault <0.23M Given the random nature of these faults, we recommend carrying out measurements in environmental conditions similar to those in which the fault has been detected.

1. Position the cursor onto GFL by using the arrow keys GFL 15/10 ­ 18:04

(,) and confirm with ENTER. The display shows the screen to the side. The indication “Rp” indicates the

Rp

– – –

M

parallel of the insulation resistances of the positive (+)

and negative (-) poles of the string being tested.

VPN

VPE

VNE

0V

0V

0V

10

1500V 0.10M

NMOD Vtest.

Lim.

2. Use the arrow keys or and select the position GFL 15/10 ­ 18:04

“NMOD to set the number of modules of the string being tested.

Rp

– – –

M

3. Use the arrow keys (,) to select a number of modules

between: 4 ÷ 35

VPN

VPE

VNE

0V

0V

0V

10

1500V 0.10M

NMOD Vtest.

Lim.

4. Use the arrow keys or and select the position GFL 15/10 ­ 18:04

“Vtest” to set the test voltage. 5. Use the arrow keys (,) to select one of the following

Rp

– – –

M

test voltages (Vnom): 250, 500, 1000, 1500VDC. In

compliance with IEC/EN62446-1, we recommend

setting the test voltage of the installation Vtest

VPN 0V

VPE 0V

VNE 0V

Vnom

EN – 30

10

1500V 0.10M

NMOD Vtest.

Lim.

PVCHECKs-PRO

6. Use the arrow keys or and select the position “Lim.”. GFL 15/10 ­ 18:04

The display shows the screen to the side. 7. Use the arrow keys (,) to set the minimum limit

Rp

– – –

M

threshold for insulation measurement, which can be

selected among the following values: 0.05M, 0.1M,

0.23M

VPN 0V

VPE 0V

VNE 0V

10

1500V 0.10M

NMOD Vtest.

Lim.

8. Connect the instrument to the PV string to be tested as shown in Fig. 9. Please remember that it is also necessary to separate possible overvoltage protections connected to the cables of the string, and that it is recommended to measure upstream of possible blocking diodes.

Fig. 9: Instrument connection for insulation measurement in GFL mode
CAUTION
Upon pressing the GO/STOP key, different error messages can be displayed by the instrument (§ 6.4.3) and, therefore, the test cannot be started. Check and eliminate, if possible, the problem causing the error message before going on with the test
Do not touch the masses of the modules during the measurement as they could be at dangerous potential even with the system disconnected due to the voltage generated by the instrument
The measurement could give incorrect results if the earth reference is not correctly connected to input E
We recommend a preliminary check of correct functioning of the instrument before carrying out a measurement by short-circuiting terminals P, N and E, checking an insulation value of almost zero and an out-of-scale value with terminals P, N and E open.
EN – 31

PVCHECKs-PRO

9. Press and hold the GO/STOP key for at least 3s in GFL 15/10 ­ 18:04

order to start the test. In case no error conditions occur, the instrument displays the message “Measuring…” as

Rp VPN

– – VPE

M VNE

shown in the screen to the side.

0V

0V

0V

10 NMOD

Measuring…

1500V 0.10M

Vtest.

Lim.

10.With no fault conditions (RpLim), the instrument GFL 15/10 ­ 18:04

shows the screen to the side and the message “OK” appears on the display.

Rp

100

M

VPN 1480V

VPE 750V

VNE -730V

14 NMOD

OK

1500V 0.10M

Vtest.

Lim.

11.In case a fault is present (Rp<Lim) in position 0 GFL 15/10 ­ 18:04

(upstream of the first module), the instrument shows the screen to the side and the message “GND: Fault

Rp

0.0

(+)..1” on the display. Check the condition of the

insulation of the conductor (+) which comes from the

string.

VPN 1480V

VPE 750V

M VNE -730V

GND: Fault (+)..1

14

1500V 0.10M

NMOD Vtest.

Lim.

12.In case a fault is present (Rp<Lim) in position GFL 15/10 ­ 18:04

NMOD+1 (downstream of the last module), the instrument shows the screen to the side and the message

Rp

0.0

“GND: Fault NMOD..(-)” on the display. Check the

condition of the insulation of the conductor (-) which

comes from the string.

VPN 1480V

VPE 750V

M VNE -730V

14 NMOD

GND: 14.. (-)

1500V 0.10M

Vtest.

Lim.

13.In case a fault is present (Rp<Lim) in position 1 GFL 15/10 ­ 18:04

(between module 1 and 2), the instrument shows the screen to the side and the message “GND: Fault 1..2” on

Rp

0.0

the display. Check the condition of the insulation of the

junction boxes of the indicated modules (1 and 2, in the

example) and the relevant connection cables.

VPN 1480V

VPE 750V

M VNE -730V

14 NMOD

GND: Fault 1..2

1500V 0.10M

Vtest.

Lim.

EN – 32

PVCHECKs-PRO

14.In case a fault is present (Rp<Lim) in position NMOD GFL 15/10 ­ 18:04

(between the second last and the last module), the instrument shows the screen to the side and the message

Rp

0.0

“GND: Fault NMOD-1..NMOD” on the display.

Check the condition of the insulation of the junction boxes

of the indicated modules and the relevant connection cables.

VPN 1480V

VPE 750V

M VNE -730V

GND: Fault 13..14

14

1500V 0.10M

NMOD Vtest.

Lim.

15.In case a fault is present (Rp<Lim) within the string, the GFL 15/10 ­ 18:04

instrument shows the screen to the side and the message (relevant to the example with NMOD = 14) “GND: Fault

Rp

0.0

8..9” on the display. Check the condition of the insulation

of the junction boxes of the indicated modules and the

relevant connection cables.

VPN 1480V

VPE 750V

M VNE -730V

14 NMOD

GND: Fault 8..9

1500V 0.10M

Vtest.

Lim.

CAUTION
The results of function GFL cannot be saved in the instrument’s memory.

EN – 33

PVCHECKs-PRO

6.6. DB ­ MODULE DATABASE MANAGEMENT The instrument allows managing up to a maximum of 64 PV modules, further to a DEFAULT module (not editable and not erasable) which can be used as reference case when no information about the type of module being tested is available. The parameters, referred to 1 module, which can be set in the definition are reported in the following Table 1 together with the measuring ranges, resolution and validity conditions:

Item Prod Name
Type
Voc Isc Vmpp Impp Tmp.Isc
()
Tmp.Isc
()
Coef. Bif.

Description Manufacturer’s name of module
Module name
Type of module
Open-circuit voltage Short-circuit current Voltage on maximum power point Current on maximum power point

Range Max 15 digits Max 15 digits
Monofacial Bifacial
15.00 199.99V 0.50 40.00A 15.00 199.99V 0.50 40.00A

Resolution
0.01V 0.01A 0.01V 0.01A

Isc temperature coefficient

-0.1000.100 %/°C 0.001%/°C

Voc temperature coefficient

-0.999-0.001
%/°C

0.001%/°C

Coefficient of bifaciality (Bifacial modules only)

0.0 100.0%

0.1%

Table 1: Parameters associated to a PV module

Notes Only CAPITAL Only CAPITAL
Voc Vmpp Isc Impp Voc Vmpp Isc Impp 100/ Isc 0.1
100/Voc 0.999

6.6.1. How to define a new PV module

1. Position the cursor onto DB by using the arrow keys DB

15/10 ­ 18:04

(,) and confirm with ENTER. The display shows the

screen

which

contains

the

type

of

module

selected

and

Man. Name:

SENEC

M420

the values of the parameters associated to the module T y p e Voc

:

Bifacial

: 38.00 V

Isc

: 13.99 A

T m p . I s c ( ) : 0 , 0 4 6 %/°C

Tmp. Voc()

: -0,260 %/°C

Bif.Coef.

: 90.0

%

New

37/64 Edit Delete Free

2. Use the arrow keys ( , ) to select the manufacturer of DB

15/10 ­ 18:04

the module (field “Man.) and the name of the module

(field

“Name”).

Choose

by

scrolling

down

the

lists

of

Prod. Name:

SENEC

M420

those previously defined and saved.

Type Voc

:

Bifacial

: 38.00 V

Isc

: 13.99 A

T m p . I s c ( ) : 0 , 0 4 6 %/°C

Tmp.Voc()

: -0,260 %/°C

Bif.Coef.

: 90.0

%

New

37/64 Edit Delete Free

EN – 34

PVCHECKs-PRO

4. Press “New” (which allows defining a new module) and SAVE 15/10 ­ 18:04

confirm with ENTER. Use the arrow keys of the virtual

Manufacturer Name

keyboard to define a name for the module’s

manufacturer. Confirm with “OK”

SUNPOWER_

0 1 2 3 4 5 6 7 8 9 0 ( ) %

Q W E R T Y U I O P <=> #

A S D F G H J K L + – * / &

Z X C V B N M . , ; : ! ? _

ÄÖÜßµÑÇÁÍÓÚÜ¿¡

ÁÈÉÙÇÄËÏÖÜÆØÅ

DEL OK

NEW

5. Use the arrow keys of the virtual keyboard to define a SAVE 15/10 ­ 18:04

name for the module. Confirm with “OK””

Module name

318WTH_

0 1 2 3 4 5 6 7 8 9 0 ( ) %

Q W E R T Y U I O P <=> #

A S D F G H J K L + – * / &

Z X C V B N M . , ; : ! ? _

ÄÖÜßµÑÇÁÍÓÚÜ¿¡

ÁÈÉÙÇÄËÏÖÜÆØÅ

DEL OK

NEW

3. Enter the value of each parameter (see Table 1) DB

15/10 ­ 18:04

according to the manufacturer’s data sheet. Position the

cursor

onto

the

parameter

to

be

defined

by

using

the

Man. Name:

SUNPOWER 318WTH

arrow keys (,) and set the value using the arrow keys T y p e

( , ). Keep the arrow keys ( , ) pressed to carry out

Voc Isc

: Monofacial : 64.70 V : 6.20 A

a quick setting of the values. 4. Press the SAVE key to save

the

settings

or

Vmpp
the I m p p Tmp.Isc()

: 58.40 : 5.42 : 0,057

V A %/°C

ESC/MENU key to exit without saving.

Tmp.Voc()

: – 0 , 1 2 7 %/°C

CAUTION
If the value of any parameter is unknown, press and hold the HELP key for a few seconds to set the default value.
Upon pressing the SAVE key, the instrument checks the conditions indicated in Table 1 and, if one or more of these conditions are not fulfilled, one of the error messages listed in § 6.8 is shown on the display. The instrument does not save the configuration set before any error is solved.

EN – 35

PVCHECKs-PRO

6.6.2. How to modify an existing PV module

1. Select the PV module to be modified from the database DB

15/10 ­ 18:04

by means of the arrow keys ( , ).

Press

the

ENTER

key

and

select

the

“Edit”

command

Man. Name:

SENEC

M420

using the arrow key (). 3. Confirm selection with ENTER.

Type Voc Isc

:

Bifacial

: 38.00 V

: 13.99 A

By using the define again

internal virtual keyboard, it is possible the name of the module or leave

to it

Tmp.Isc() Tmp.Voc() Bif.Coef.

: 0,046 : -0,260 : 90.0

%/°C %/°C
%

unchanged by means of the arrow keys , , , ).

Press ENTER to digit any character of the desired name.

37/64

5. Press the SAVE key to save the name of the new module New Edit Delete Free

thus defined or to access the new parameter setting.

6.6.3. How to delete an existing PV module

1. Select the PV module from the database by means of the DB

15/10 ­ 18:04

arrow keys ( , ).

Press the ENTER key and select the “Delete” command

Prod. Name:

SENEC

M420

by means of the arrow key () to delete the selected T y p e

module.

Voc Isc

:

Bifacial

: 38.00 V

: 13.99 A

Confirm to exit.

the

selection

with

ENTER or press

ESC/MENU

Tmp.Isc() Tmp.Voc() Bif.Coef.

: 0,046 : -0,260 : 90.0

%/°C %/°C
%

4. The position “Free” indicates the residual number of

modules which can still be entered into the database with

37/64

reference to maximum allowed number (64 modules)

New

Edit Delete Free

CAUTION
It is not possible to modify nor delete the “DEFAULT” PV module which is a factory setting.

EN – 36

PVCHECKs-PRO
6.7. IVCK – TEST ON PV MODULES AND STRINGS 6.7.1. Foreword This function carries out a series of tests on a PV module/string, measuring in a sequence: Open-circuit voltage Voc of the PV string/module being tested, measured in OPC
condition (OPerative Condition), i.e. in the real conditions in which the installation is, with or without irradiance and temperature measurement. Open- circuit voltage Isc of the PV string/module being tested, in compliance with standard IEC/EN62446, measured in OPC condition (OPerative Condition), i.e. in the real conditions in which the installation is, with or without irradiance and temperature measurement. Insulation resistance in DUAL mode, with measurement of values R(+), R(-) and Rp. Continuity of protective conductors with 200mA When measuring Voc and Isc WITHOUT measuring irradiance and temperature, the instrument only displays OPC values, compares them to average values (rolling average of the last 10 measurements) and displays the result for a comparison with average values. When measuring Voc and Isc ALSO measuring irradiance and temperature, the instrument automatically “converts” the data in OPC conditions to STC conditions (Standard Test Condition ­ Irradiance = 1000W/m2, Module temperature = 25°C, spectrum distribution AM=1.5) for a comparison to the characteristics declared by the module’s manufacturer. In these conditions, the use of the remote unit SOLAR03, to which irradiance and temperature test leads are connected, becomes necessary. Irradiance and temperature measurements of modules are carried out through one or more reference cells HT305 (in case of Bifacial modules) and with temperature probe PT305, connected to the remote unit SOLAR03, which communicates data in real time to the instrument via Bluetooth connection. In case the connection between instrument and remote unit becomes difficult (too high distance or transmission through walls/obstacles), it is possible to carry out measurements converted to STC conditions by recording the irradiance/temperature values from unit SOLAR03. The recommended minimum irradiance threshold is 700W/m2 the instrument carries out all tests included in I-V test, manages all conditions and error messages of I-V test (wrong numb. of mod., temp. out of range, cell presence, min. irr., etc.) and calculates the STC values of Voc and Isc. This mode is recommended whenever accurate tests are to be carried out on modules/strings being examined. In general, the result page will include: Description of the module used Irradiance and temperature values (if available) Average values of Voc and Isc calculated as average of the corresponding values under OPC on the last 10 tests saved in the memory. If the number of tests is < 10, the average is calculated on the number of available tests. The first test will display dashes in the field “average values” as there are no previous tests on which to calculate an average. The values of Voc and Isc measured under OPC as well as any partial result (only available if STC values are not available) obtained by comparison with average values. The values of Voc and Isc calculated under STC (if available) and any partial result obtained by comparing the values calculated under STC with the nominal ones (inserted in DB modules The overall test outcome (OK(NO). The overall test outcome will be calculated basing on the partial outcomes in STC (if available) or basing on the partial outcomes in OPC (if STC values are not available). The instrument will not display any overall outcome if no partial outcome is available.
EN – 37

PVCHECKs-PRO

6.7.2. Carrying out IVCK Tests without remote unit

CAUTION

Check that no remote unit SOLAR03 is currently activated. Otherwise, select “Unpair” to unpair the current active remote unit (see § 6.2).
The maximum voltage between inputs P, N, E and C is 1500VDC. Do not measure voltages exceeding the limits given in this manual.
Do not perform test on PV modules/strings connected to DC/AC converter Standard IEC/EN62446 requires that measurements are performed string by
string. Even if the instrument is designed to manage inrush current for single strings or strings connected in parallel, we recommend testing one string at a time according to the standard’s prescriptions.

1. Position the cursor onto IVCK by using the arrow keys IVCK 15/10 ­ 18:04

(,) and confirm with ENTER. The display shows the

screen to the side: The message “Remote U. not active”

indicates that no remote unit SOLAR03 is connected to R e m o t e U . n o t a c t i v e

the instrument (see § 6.2). The following parameters are

shown: VTest test voltage for insulation measurement

VPN 0V

VPE 0V

VNE 0V

ISO minimum limit for insulation measurement

RPE maximum limit for continuity test >< calibration resistance of cables for RPE test

1000V 1.00M 2

VTest

ISO

RPE

<

Values of voltages VPN, VPE and VNE

2. Use the arrow keys (,) to access the setting of IVCK 15/10 ­ 18:04

measurement parameters. The screen on the side

appears on the display. Use the arrow keys (, ) to set

N.Mod. x STR N.Str.in par.

: 01 : 01

the values. The following options are available:

Tol. Voc Tol.Isc

N. Mod x STR set the number of modules of the Iso V.Test

string in range: 1 ÷ 35

Iso R.Lim RPE lim

N. Str in par. Set the number of strings connected AVG Values

in parallel in range: 1 ÷ 10

AVG Voc AVG Isc

: 05

: 10

: 1000

: 1.00

: 2

:

RESET

:

– – –

:

– – –

% % V M
V A

Tol. Voc set percentage tolerance for Voc

measurement in range: 1% ÷ 15% (typical 5%)

Tol. Isc set percentage tolerance for Isc

measurement in range: 1% ÷ 15% (typical 10%)

Iso V. Test set test voltage for insulation

measurement among the options: OFF

(measurement excluded), 250V, 500V, 1000V,

1500VDC Iso R.Lim set the minimum reference threshold for
insulation measurement among the values:

0.05,0.10,0.23,0.25,0.50,1.00,50M RPE Lim set the maximum limit for continuity test
among the values: OFF (measurement excluded),

1,2,3,4,5 AVG values the function “RESET” allows zeroing
the average values of Voc and Isc parameters before starting a new measurement. AVG Voc, AVG Isc average Voc and Isc values in the 10 previously saved tests. 3. Press the SAVE key to save settings.

EN – 38

PVCHECKs-PRO 4. If necessary, select option “><” and confirm with ENTER. Carry out this operation as
indicated in § 6.3.1. 5. Connect the instrument to the PV module/string being tested and to the main earth
node of the system, and to the metal masses connected to earth as shown in Fig. 10. In particular, connect the negative output pole of the PV module/string to terminal N and the positive output pole of the PV module/string to terminal P.

Fig. 10: Connection for IVCK tests without remote unit

WARNING
Upon pressing the GO/STOP key, different error messages can be displayed by the instrument (§ 6.8) and, therefore, the test cannot be started. Check and eliminate, if possible, the problem causing the error message before going on with the test.

6. Press the GO/STOP key to start the test. In case no error IVCK 15/10 ­ 18:04

conditions occur, the instrument “Measuring…” and the measure

displays the message of open-circuit voltage

Voc@OPC Isc@OPC

1485

V

11.25

A

between terminals P (for Isc values 40A).

and

N

and

of

short-circuit

current

Avg Voc Avg Isc Rp

1485

V

11.25

A

100

M

R+

100 R- >100

M

RPE

– – –

1500V VTest

Measuring…

1.00M

2

ISO RPE

– – – ><

EN – 39

PVCHECKs-PRO

7. When Voc and Isc measurements are complete, the IVCK 15/10 ­ 18:04

message “OK” is shown in case the result of the test is positive (measured values within the tolerance values

Voc@OPC Isc@OPC

1485 11.25

set on the instrument). With insulation measurement

selected,

the

instrument

Avg Voc Avg Isc Rp

1485 11.25 >100

goes on with the test, keeping terminals P and N shortcircuited, and carrying out the test between this point and

R+ RPE

100 R- >100 1.1

terminal E for the time necessary to obtain a steady

value. The value of insulation resistance is shown in field “Rp” (parallel resistance between values R+ and R-) and

Result: OK

the message “OK” appears in case the result of the test is positive (measured value higher than the minimum

1500V VTest

1.00M ISO

2 RPE

limit value set on the instrument).

9. With continuity measurement selected, the instrument

goes on by opening the short-circuit and carrying out the

test between terminals E and C. The value of resistance

in the continuity test is shown in field “RPE” and the

message “OK” appears in case the result of the test is

positive (measured value lower than the maximum

limit value set on the instrument).

10. The message “Result OK” is finally shown by the

instrument in case the result of all performed tests is

positive.

V OK A OK V OK A OK M OK M OK
0.2 ><

In general, the result of a test on a Voc and Isc measurement is determined by the following relationships:

Please note the following parameters:

= average of open voltage calculated over last 10 measurements saved

= average of short-circuit current calculated over last 10 measurements saved

= positive tolerance value on Voc =

x

= negative tolerance value on Voc =

x

= positive tolerance value on Isc =

x

= negative tolerance value on Isc =

x

= maximum instrument error declared on Voc (see § 0) = maximum instrument error declared on Isc (see § 0)

= error on Voc measurement @ OPC = error on Isc measurement @ OPC
The following conditions on parameters on the measurement result are managed by the instrument:

EN – 40

PVCHECKs-PRO

N

CONDITION

RESULT

1 (If ISO measurement selected) Rp Rp Lim

OK

(If RPE measurement selected) RPEmis RPELim

Previous condition (1) is not verified, but the following one is valid:

2

OK*

(If ISO measurement selected) Rp Rp Lim (If RPE measurement selected) RPEmis RPELim

Previous conditions (1) and (2) are not verified, but the following one is valid:

3

NO OK*

(If ISO measurement selected) Rp Rp Lim (If RPE measurement selected) RPEmis RPELim

4 Previous conditions (1), (2) and (3) are not verified

NO OK

11. Press the SAVE key to store the test result in the instrument’s memory (see § 7.1) or the ESC/MENU key to exit the screen without saving and go back to the main measuring screen.
CAUTION
The average values of Voc and Isc are displayed in the results page. These values include the average values of Voc and Isc under OPC conditions calculated as a rolling average of the last 10 tests previously saved. If the user has carried out and saved a number of tests <10 or reset the average values, the average value displayed during test N+1 will be calculated on the available N values.
When using the instrument like this, the average values previously calculated are particularly important. In case a new measurement campaign is started with significant variations in irradiance or temperature, it is advisable to set the average reference values (“RESET”) to zero to make new calculations based on new measurements. Average values are anyway zeroed in case the user changes the number of modules and/or strings.

EN – 41

PVCHECKs-PRO 6.7.3. Carrying out IVCK Tests with remote unit Irradiance and temperature measurements (if the instrument is set in temperature measuring mode “MEAS”) with the aid of a remote unit SOLAR03 connected via Bluetooth to the instrument are recommended in case of unstable irradiance conditions or if a comparison is necessary with the module’s rated values declared by the manufacturer.
CAUTION
Check that no remote unit is currently activated. In case it is not, please carry out the connecting procedure described in § 6.2.
The maximum voltage between inputs P, N, E and C is 1500VDC. Do not measure voltages exceeding the limits given in this manual.
Do not perform tests on PV modules or strings connected to the DC/AC converter.
The maximum temperature which can be tolerated by the instrument is 40°C
Standard IEC/EN62446 requires that measurements are performed string by string. Even if the instrument is designed to manage inrush current for single strings or strings connected in parallel, we recommend testing one string at a time according to the standard’s prescriptions.
The instrument can operate combined with remote unit SOLAR03 in one of the following modes: Presence of remote unit SOLAR03 active and connected the instrument directly
provides the results of measurements @STC Presence of remote unit SOLAR03 active, connected and recording: the
instrument directly provides the results of measurements @STC Modes 1 and 2 are basically the same in case the instrument and the remote unit SOLAR03 are directly connected. Presence of remote unit SOLAR03 active, recording, NOT connected the
instrument provides the results of measurements @OPC with no outcome, then automatically and simultaneously converts them to @STC only after data have been transferred from the remote unit at the end of recording and upon the next connection.
EN – 42

PVCHECKs-PRO
SOLAR03 active and connected or active and recording
1. Connect the instrument to the PV module/string being tested and to the main earth node of the system, and to the metal masses connected to earth as shown in Fig. 11. In detail: Connect the negative output pole of the PV module/string to terminal N and the positive output pole of the PV module/string to terminal P. In case of Monofacial modules position the reference cell HT305 onto the front surface of module (F) and at input “INP1” and possibly temperature probe PT305 at input “INP4” of the remote unit. In case of Bifacial modules position the 3 reference cells HT305 onto the front surface of module (F), onto the back top part (BH=BackHigh) and onto the back bottom part (BL=BackLow) of the module. Connect the front reference cell (F) to input “INP1”, BH reference cell to input “INP2”, BL reference cell to input “INP3” and possibly the temperature probe PT305 to input “INP4” of the remote unit. Check reading of irradiance and temperature values on the remote unit SOLAR03.
2. If necessary, select option “><” and confirm with ENTER. Carry out a possible calibration of cables as described in § 6.3.1.

Fig. 11: Connection with remote unit SOLAR03 on Monofacial and Bifacial modules

3. Position the cursor onto IVCK by using the arrow keys IVCK 15/10 ­ 18:04

(,) and confirm with ENTER. The display shows the screen to the side: The following parameters are shown:

Front Irr.
Temp.

920 54.7

W/m2 °C

Irr. Irradiance values measured connected to the remote unit

by

cell

HT305

SOLAR03 23051203 Module: SUNPOWER318WTH

Temp. Temperature value of module

Remote unit indications on the serial number, V P N connection status ” ” and possible ongoing recording 1 4 8 0 V

VPE 740V

VNE -740V

” ” of the remote unit SOLAR03 connected and

active.

ISO minimum limit for insulation measurement RPE maximum limit for continuity test

1000V 1.00M 2

VTest

ISO

RPE

0.25 ><

< value of calibration resistance of cables for

continuity test

Values of voltages VPN, VPE and VNE

EN – 43

PVCHECKs-PRO

4. Use the arrow keys (,) to access the setting of IVCK 15/10 ­ 18:04

measurement parameters. The screen on the side

appears on the display. Use the arrow keys (, ) to set

Man. Name:

SUNPOWER

318WTH

the values. The following options are available:

N.Mod. x STR

Man. Set the manufacturer’s name of the module

N.Str.in par. Mod. Temp

: 01 : 02 : MAN

(max 50) found in the internal DB Name Set the name of the module (max 50) found

Tol. Voc Tol.Isc

in the internal DB. the modules has

If, when entered in the database, been defined as “Bifacial”, the

Iso V.Test Iso R.Lim RPE lim

: : : : :

55 05 10 1000 1.00 2

instrument and the remote unit will automatically read

3 irradiance values.

N. Mod x STR set the number of modules of the

string in range: 1 ÷ 35

N. Str in par. Set the number of strings connected

in parallel in range: 1 ÷ 10

Mod. Temp set the measuring mode of module

temperature by choosing among the options:

AUTO temperature calculated by the instrument based on the measured Voc (no probe connected) ­ recommended option
MEAS temperature measured via probe PT305 connected to remote unit
MAN manual setting of module temperature if known in the subsequent range
Tol. Voc set percentage tolerance for Voc measurement in range: 1% ÷ 15% (typical 5%)
Tol. Isc set percentage tolerance for Isc measurement in range: 1% ÷ 15% (typical 10%)
Iso V. Test set test voltage for insulation measurement among the options: OFF

(measurement excluded), 250V, 500V, 1000V,

1500VDC Iso R.Lim set the minimum reference threshold for
insulation measurement among the values:

0.05,0.10,0.23,0.25,0.50,1.00,50M RPE Lim set the maximum limit for continuity test
among the values: OFF (measurement excluded),

1,2,3,4,5 5. Press the SAVE key to save settings and go back to the
previous screen.

°C % % V M

EN – 44

6. Assemble the stem onto the disk of the optional accessory M304 and keep it resting on the module’s surface. Check that the shadow of the stem on the disk falls within the internal “limit concentric circle” of the disk itself (see picture). Otherwise, the angle between the sun strays and the module’s surface is too big and, therefore, the measurements carried out by the instrument are NOT to be trusted. Repeat the operations at other times of the day.

PVCHECKs-PRO

In case it is necessary to record of irradiance values over time (e.g. in unstable irradiance conditions or in case the distance between the modules and the instrument is high), follow the steps from 7 to 9, or jump to step 10.

7. Select option UREM from the main menu, pair and connect the remote unit SOLAR03 to the instrument as shown in step 6 of § 6.2

8. Use the arrow keys or to select “Start” to start the UREM 15/10 ­ 18:04

instrument’s recording (with non-modifiable 1s scan) SOLAR03 Act Status Rec.

with the remote unit. The screen on the side appears on 23051204

the display. In this condition, the instrument sends its

system date / time to the remote unit SOLAR03, which is

thus synchronized with it. The symbol ” ” appears on

the display and the message “REC” appears on the

remote unit’s display to indicate that recording is in

progress.

U.Rem. Connected

Find Unpair Delete Start
9. Bring the remote unit near the modules and connect the irradiance/temperature probes as shown in Fig. 11. Since recording has already been activated on remote unit SOLAR03, it is not strictly necessary to maintain the Bluetooth connection anymore. Maintaining the connection will only allow to immediately obtain the outcome of the test without waiting for the measuring campaign to be completed.

CAUTION
Upon pressing the GO/STOP key, different error messages can be displayed by the instrument (§ 6.8) and, therefore, the test cannot be started. Check and eliminate, if possible, the problem causing the error message before going on with the test.

EN – 45

PVCHECKs-PRO

10. Press the GO/STOP key to start the test. In case no error IVCK

conditions occur, the instrument “Measuring…” and the measure

displays the message of open-circuit voltage

Voc@STC Isc@STC

between terminals P and N and of short-circuit current (for

Voc Nom Isc Nom

Isc values 40A).

Rp

R+

RPE

15/10 ­ 18:04

1485

V

11.25 A

1485

V

11.25 A

100 M

100 R- >100 M

– – –

Measuring…

1500V

1.00M 2

VTest ISO RPE

0.25 ><

11. In case of direct connection between the instrument and IVCK 15/10 ­ 18:04

the remote unit, when Voc and Isc measurements are complete, the message “OK” is shown in case the result of

Voc@STC Isc@STC

1485

V

OK

11.25

A

OK

the test is positive tolerance values set

(measured values within the on the instrument). The following

Voc Nom Isc Nom Rp

parameters are shown: Voc voltage at STC conditions with relevant outcome

R+ RPE

1485

V

OK

11.25 A OK

100 M OK

100 R- >100 M

1.1

OK

Isc current at STC conditions with relevant outcome

Rated value of voltage Voc@STC used as a reference for outcome

Result: OK

Rated value for outcome

of

current

Isc@STC

used

as

a

reference

1500V VTest

1.00M ISO

2 RPE

0.2 ><

In case the instrument and the remote unit

SOLAR03 are not in direct connection, the

instrument only displays the values measured at OPC

and it is necessary to wait for the end of the tests and

the subsequent synchronization with the remote unit

SOLAR03 to obtain the final outcome of the tests.

12. With insulation measurement selected, the instrument

goes on with the test, keeping terminals P and N short-

circuited, and carrying out the test between this point and

terminal E for the time necessary to obtain a steady value.

The value of insulation resistance is shown in field “Rp”

(parallel resistance between values R+ and R-) and the

message “OK” appears in case the result of the test is

positive (measured value higher than the minimum

limit value set on the instrument).

13. With continuity measurement selected, the instrument

goes on by opening the short-circuit and carrying out the

test between terminals E and C. The value of resistance in

the continuity test is shown in field “RPE” and the

message “OK” appears in case the result of the test is

positive (measured value lower than the maximum limit

value set on the instrument).

14. The message “Result OK” is finally shown by the

instrument in case the result of all tests is positive.

15. Press the SAVE key to store the test result in the instrument’s memory (see § 7.1) or

the ESC/MENU key to exit the screen without saving and go back to the main

measuring screen.

EN – 46

PVCHECKs-PRO

16. In case a recording is running, once testing has ended, disconnect the remote unit SOLAR03, bring it back near the instrument and check that the connection to the instrument is active again (symbol ” ” on and steady on the remote unit’s display).
17. Use the arrow keys or to select “Stop” to stop the UREM 15/10 ­ 18:04 instrument’s recording with the remote unit. The screen on SOLAR03 Act Status Rec. the side appears on the display. The symbol ” ” 23051204 disappears from the display and the message “REC” disappears from the remote unit’s display.

In this phase, the remote unit downloads the irradiance/temperature recorded during the measuring campaign. These values are used by the instrument for an automatic conversion of Voc and Isc values to STC conditions. Data available in the memory will be updated with the calculated values and the outcome will therefore become available.

U.Rem. Connected
Find Unpair Delete Stop

In general, the result of a test on a Voc and Isc measurement is determined by the following relationships: Please note the following parameters:

= rated value of open-circuit voltage

= rated value of short-circuit current

= positive tolerance value on Voc =

x

= negative tolerance value on Voc =

x

= positive tolerance value on Isc =

x

= negative tolerance value on Isc =

x

= maximum instrument error declared on Voc (see § 10.1) = maximum instrument error declared on Isc (see § 10.1)

= error on Voc measurement @ STC = error on Isc measurement @ STC
The following conditions on parameters on the measurement result are managed by the instrument:

EN – 47

PVCHECKs-PRO

N

CONDITION

RESULT

1 (If ISO measurement selected) Rp Rp Lim

OK

(If RPE measurement selected) RPEmis RPELim

Previous condition (1) is not verified, but the following one is valid:

2

OK*

(If ISO measurement selected) Rp Rp Lim (If RPE measurement selected) RPEmis RPELim

Previous conditions (1) and (2) are not verified, but the following one is valid:

3

NO OK*

(If ISO measurement selected) Rp Rp Lim (If RPE measurement selected) RPEmis RPELim

4 Previous conditions (1), (2) and (3) are not verified

NO OK

EN – 48

PVCHECKs-PRO

6.7.4. Anomalous situations

1. In case the instrument detects a voltage higher than IVCK 15/10 ­ 18:04

1500VDC at terminals P-N, P-E and N-E, it does not

carry out the test, gives out a long sound and displays the

message “Vin > 1500V”.

Remote U. not active

VPN 0V

VPE 0V

VNE 0V

Vin >1500V

1000V 1.00M

VTest

ISO

2 RPE

– – – ><

2. In case the instrument detects a voltage lower than – IVCK 15/10 ­ 18:04

0.5VDC at terminals P-N, it does not carry out the test,

gives out a long sound and displays the message

“Reverse P-N”.

Remote U. not active

VPN 0V

VPE 0V

VNE 0V

Reverse P-N

1000V 1.00M

VTest

ISO

2 RPE

– – – ><

3. In case the instrument detects a voltage – IVCK 15/10 ­ 18:04

0.5VVPN15VDC at terminals P-N, it does not carry out

the test, gives out a long sound and displays the

message “VInput < 15VDC”.

Remote U. not active

VPN 11V

VPE 6V

VNE -5V

V Input < 15VDC

1000V 1.00M

VTest

ISO

2 RPE

– – – ><

4. In case the instrument detects an AC voltage higher IVCK 15/10 ­ 18:04

than 10V at terminals P-N, P-E and N-E, it does not carry

out the test, gives out a long sound and displays the

message “VAC > LIM”.

Remote U. not active

VPN 11V

VPE 6V

VNE -5V

VAC > LIM

1000V 1.00M

VTest

ISO

2 RPE

– – – ><

EN – 49

PVCHECKs-PRO

5. In case the instrument detects a voltage >3V at its IVCK terminals E and C, it does not carry out the test, gives out a long sound and displays the message “VInput > 3V”.

15/10 ­ 18:04

Remote U. not active

VPN 0V

VPE 0V

VNE 0V

VInput > 3V

1000V 1.00M

VTest

ISO

2 RPE

– – – ><

6. In case the instrument detects a current <0.1A while IVCK 15/10 ­ 18:04

measuring Isc current, the message to the side appears

on the display. Check the connections of the instrument

to the circuit being tested.

Remote U. not active

VPN 0V

VPE 0V

VNE 0V

Isc < 0.1A

1000V 1.00M

VTest

ISO

2 RPE

– – – ><

7. In case the instrument detects a blown fuse while IVCK measuring Isc current, the message to the side appears on the display. Please contact HT’s After-sales Service.

15/10 ­ 18:04

Remote U. not active

VPN 0V

VPE 0V

VNE 0V

Blown fuse

1000V 1.00M

VTest

ISO

2 RPE

– – – ><

8. In case no recording has been activated on remote unit IVCK 15/10 ­ 18:04

SOLAR03, the message to the side is shown on the display. Check the status of the remote unit SOLAR03

Front Irr.
Temp.

– – – – –

W/m2 °C

SOLAR03 23051203 Module: SUNPOWER318WTH

VPN 1480V

VPE 740V

VNE -740V

Rem.Unit not connected

1000V 1.00M 2

0.25

VTest

ISO

RPE

<

EN – 50

PVCHECKs-PRO

9. Once Voc and Isc measurements are completed, the IVCK 15/10 ­ 18:04

message “Waiting for irradiance values” is shown in case a remote unit SOLAR03 is recording but not

Voc@STC Isc@STC

– – –

V

– – –

A

connected to the instrument. Wait for the remote unit to download the data to display the measurement results

Voc Nom Isc Nom Rp

1485 11.25 >100

V A M OK

@STC

R+ RPE

100 R- >100 M

1.1

OK

Waiting for irradiance values

1500V

1.00M 2

VTest

ISO RPE

0.2 ><

10. In case the remote unit SOLAR03 has been activated IVCK 15/10 ­ 18:04

and connected, but the irradiance value is not valid, the message to the side is shown on the display. Check the

Front Irr.
Temp.

– – – – –

W/m2 °C

status of the remote unit

SOLAR03 23051203

Module: SUNPOWER318WTH

VPN 1480V

VPE 740V

VNE -740V

Check inputs of Rem.Unit

1000V 1.00M 2

0.25

VTest

ISO

RPE

<

11. In case measurements are carried out without remote IVCK 15/10 ­ 18:04

unit (see § 6.7.2), but the instrument has previously been paired to a remote unit, the message to the side appears

Front Irr.
Temp.

– – – – –

W/m2 °C

on the display. Enter the remote unit’s configuration menu (see § 6.2) and select “Unpair” to unpair the

SOLAR03 23051203 Module: SUNPOWER318WTH

remote unit.

VPN 1480V

VPE 740V

VNE -740V

Rem.Unit not connected

1000V 1.00M 2

0.25

VTest

ISO

RPE

<

EN – 51

PVCHECKs-PRO

6.8. LIST OF DISPLAY MESSAGES

MESSAGE
Function not available Data not saved Wrong date Database full
Module already added Memory full
Error: Vmpp >= Voc Error: Impp >= Isc Error: Vmpp * Impp >= Pmax Error: Alpha too high Error: Beta too high Error: Toll too high
Download error Error while saving Remote unit undetected Unable to perform analysis Data unavailable Negative voltage
Low voltage Vin > 1500 Wrong no. of modules. Continue? Temp. Ref. cell exceeding limits Cell temp. undetected (ENTER/ESC) Low battery Please wait for cooling… Irradiance too low NTC Error
Current < Lim
EEPROM Error: contact service FRAM Error: contact service RTC Error: contact service RADIO Error: contact service FLASH Error: contact service IO EXP Error: contact service Voltage > limit
Label already assigned
Isc current < Lim
Warning: internal short-circuit Warning: blown fuse
Reset calibration. Press ENTER. Calibration not OK
Error: Isc offset measurement Rcal > measured R
Warning: AC voltage at P-N terminals Wait for condenser discharge

DESCRIPTION
The selected function/characteristic is not available The instrument was not able to save the data Set a correct system date
The number of modules added to the internal DB is > 30 The name of the module has already been added to the DB
Instrument memory full upon pressing the GO key Check module settings inside DB Check module settings inside DB Check module settings inside DB Check module settings inside DB Check module settings inside DB Check module settings inside DB Contact service department
Problems when accessing the memory The instrument does not detect any remote unit SOLAR03 Problems with the data downloaded from SOLAR03. Check settings
Generic error. Repeat the test. Check the polarity of the instruments input terminals Check the voltage between input terminals P and N
Voltage between input terminals > 1500V Set no. of modules inconsistent with measured Voc Temperature measured by reference cell too high
Measurement not carried out on module cell Low battery charge. Insert new batteries.
Instrument overheated. Wait before resuming the test. Irradiance value lower than the minimum threshold set Internal NTC efficiency jeopardized. Contact service department Current measured between P and N lower than the minimum
detectable value Internal instrument error Internal instrument error Internal instrument error Internal instrument error Internal instrument error Internal instrument error Voltage between terminals E and C > 10V Change the numeric reference of the marker associated with the
measure Isc current lower than the minimum detectable value. Contact service
department Contact service department Contact service department
Resistance value of input cables > 2 Calibrated resistance value > measured resistance
Internal instrument error Calibrated resistance value > measured resistance
Presence of AC input voltage Wait for discharge of tested object after insulation

EN – 52

PVCHECKs-PRO

STORING RESULTS

The instrument allows saving max 999 measured values. The saved data can be recalled at display and deleted at any moment and can be associated to reference numerical markers relevant to the installation (max 3 levels), the string and the PV module (max 250).

7.1. SAVING MEASURES

1. Press the SAVE key with a measured result shown on the MEM 15/10 ­ 18:04

display. The instrument shows the screen to the side,

containing the following items: The first memory location available (“Measure”) 1st-level marker (e.g.: Plant). Different labels

can

be

Measure: Plant String Module

001 001 001 – – –

associated to each marker (5 default and 5 custom Comment:

labels). Select the marker of the desired level with the arrow keys ( , ) and press the ENTER key to select

Installation Smith

one of the available labels.

2nd-level marker (e.g.: String). Different labels can be

associated to each marker (5 default and 5 custom

labels). Select the marker of the desired level with the

arrow keys , .

3rd-level marker (e.g.: Module). Different labels can be

associated to each marker (5 default and 5 custom

labels). Select the marker of the desired level with the

arrow keys , .

The field “Comment” in which the operator can include a

short description (max 13 digits) using the virtual

keyboard. The entered comment is shown in the line

underneath.

CAUTION
Custom names of marker labels can be defined by using the TopView software and uploaded onto the instrument through PC connection (section “Connection PC- Instrument Marker management”)
It is possible to add up to 5 custom names for each marker, further to the 5 provided as default values.
The names of the default markers cannot be eliminated. Deletion of custom names can only occur through the TopView software.
2. Press the SAVE key again to confirm data saving or ESC/MENU to exit without saving.

EN – 53

PVCHECKs-PRO

7.2. RECALLING AND DELETION OF SAVED DATA

1. Press the ESC/MENU key to go back to the main menu, MEM 15/10 ­ 18:04

select “MEM” and confirm with ENTER to access the section where saved values are displayed. The screen to

N. 001 002

the side is shown by the instrument and contains the list of saved tests.

003 004 005

Date 15/05/23 15/05/23 15/05/23 12/04/23 12/04/23

Type RPE M IVCK RPE IVCK

2. Use the arrow keys , to select the saved measure

which is to be shown on the display, and use the arrow

keys , to select “Rec”. Confirm with ENTER. The

following screen appears on the display:

Tot: 5

Free: 994

Last

Rec

Pag Delete

7. For RPE test, there are the values of the following RPE 15/10 ­ 18:04

parameters:

Limit threshold set for continuity measurement

R

0.02

Value of calibration resistance of test cables The value of resistance of the object being tested

Itest 212

The real value of the applied test current

Measured result

STD MODE

OK
2.00
Lim.

mA
0.06 ><

3. Use the arrow keys , to select the saved measure MEM 15/10 ­ 18:04

which is to be deleted, and use the arrow keys , to select “Del”. Confirm with ENTER. The following screen

N. 001 002

appears on the display:

003 004

Date 15/05/23 15/05/23 15/05/23 12/04/23

Type RPE M IVCK RPE

005

12/04/23

IVCK

Tot: 5
Rec

Free: 994

Last

Pag Delete

3. Press the ENTER key to confirm and the ESC key to exit MEM 15/10 ­ 18:04 without confirming and to go back to the main menu. The instrument always deletes the last saved measure

DELETE LAST? ENTER / ESC

EN – 54

PVCHECKs-PRO

8. CONNECTING THE INSTRUMENT TO THE PC
The connection between a PC and the instrument can be done via an optical serial port (see Fig. 3) by means of the optical/USB cable C2006, or via WiFi connection. The choice of the type of connection must be done via the management software (please refer to the software’s on-line help).

CAUTION

In order to transfer the data onto a PC through an optical/USB cable, it is necessary to install the management software on the PC itself beforehand.
Before connecting, it is necessary to select the port to be used and the correct baud rate (57600 bps) on the PC. To set these parameters, launch the provided management software and refer to the program’s on-line help.
The selected port must not be engaged by other devices or applications, e.g. a mouse, a modem, etc. Close any applications running using the Microsoft Windows Task Manager function, if necessary.
The optical port emits invisible LED radiations. Do not directly observe with optical instruments. Class 1M LED apparatus according to standard IEC/EN 60825-1.

To transfer data to the PC, follow this procedure:

1. Switch on the instrument by pressing the ON/OFF key. 2. Connect the instrument to the PC via the provided optical/USB cable C2006. 3. Press the ESC/MENU key to open the main menu. 4. Use the arrow keys (,) to select “PC”, to access data transfer mode and confirm
with SAVE/ENTER.

MENU

15/10 ­ 18:04

SET : Settings

MEM : Data Saved

PC

: Data Transfer

5. If using the WiFi connection is necessary, activate the internal module (see § 5.1.3).
The instrument shows the following screen:
PC 15/10 ­ 18:04
PC Connection WiFi ON

Use the software controls to activate data transfer (please refer to the on- line help of the program).
EN – 55

PVCHECKs-PRO
9. MAINTENANCE
9.1. GENERAL INFORMATION The instrument you purchased is a precision instrument. While using and storing the instrument, carefully observe the recommendations listed in this manual in order to prevent possible damage or danger during use. Do not use the instrument in environments with high humidity levels or high temperatures. Do not expose to direct sunlight. Always switch off the instrument after use. In case the instrument is not to be used for a long time, remove the batteries to avoid liquid leaks that could damage the instrument’s internal circuits. 9.2. BATTERY REPLACEMENT When the low battery symbol ” ” appears on the LCD display, or if during a test the instrument shows the message “low battery”, it is necessary to replace the internal batteries.
CAUTION
Only expert and trained technicians should perform this operation. Before carrying out this operation, make sure you have disconnected all cables from the input terminals. 1. Switch off the instrument by pressing and holding the ON/OFF key. 2. Remove the cables from the inputs. 3. Loosen the battery compartment cover fastening screw and remove the cover. 4. Remove all the batteries from the battery compartment and replace them with new batteries of the same type only (see § 10.2), making sure to respect the indicated polarities. 5. Restore the battery compartment cover into place and fasten it by means of the relevant screw. 6. Do not scatter old batteries into the environment. Use the relevant containers for disposal. 9.3. CLEANING THE INSTRUMENT Use a soft and dry cloth to clean the instrument. Never use wet cloths, solvents, water, etc. 9.4. END OF LIFE WARNING: this symbol indicates that the appliance, its accessories, and the internal batteries must be collected separately and correctly disposed of.
EN – 56

PVCHECKs-PRO

10. TECHNICAL SPECIFICATIONS
10.1. TECHNICAL CHARACTERISTICS Accuracy is indicated as ±[%reading + (num. dgt*resolution)] at 23°C±5°C, <80%RH

ELECTRICAL SAFETY

DMM ­ DC Voltage Range [V] 3 1500

Resolution [V] 1

Accuracy
(1.0rdg + 2dgt)

DMM ­ AC TRMS Voltage

Range [V]

Resolution [V]

3 1000

1

Frequency range: 42.5 ÷ 69Hz ; Voltages zeroed for measured value <3V

Accuracy
(1.0rdg + 3dgt)

M – Insulation resistance R(+), R(-), Rp ­ DUAL Mode

Test voltage DC [V]

Range [M] Resolution [M]

Accuracy (*)

0.1 0.99

0.01

250, 500, 1000, 1500

1.0 19.9

0.1

(5.0rdg + 5dgt)

20 100

1

(*) Accuracy declared for VPN240V, Rfault10;. Accuracy of Rp and R(+) notdeclared if R(+)0.2M and R(-)<0.2M,

Accuracy of Rp and R(-) not declared if R(+) < 0.2M and R(-) 0.2M.

Open circuit voltage

<1.25 x rated test voltage

Short-circuit current

<15mA (peak) for each test voltage

Rated test current

1mA on R = 1k x Vnom (with VPN, VPE, VNE= 0)

Insulation resistance (M) ­ TIMER mode

Test voltage DC [V]

Range [M] Resolution [M]

250, 500, 1000, 1500

0.01 9.99 10.0 99.9

0.01 0.1

Open circuit voltage Short-circuit current Rated test current Selectable Timer:

<1.25 x rated test voltage < 15mA (peak) for each test voltage > 1mA on R = 1k x Vnom (with VPN, VPE, VNE= 0) 3s ÷ 999s

Accuracy
(5.0rdg + 5dgt)

Continuity of protective conductors (RPE)

Range [] 0.00 9.99

Resolution [] 0.01

Accuracy

10.0 99.9

0.1

(2.0rdg + 2dgt)

100 1999

1

Test current:

200mA DC up to 5 (cables included), resolution 1mA, accuracy (5.0%reading + 5digits)

Open-circuit voltage 4 < V0 < 10V

GFL­ Ground Fault Locator

Test voltage DC [V]

Range [M]

Resolution
[M]

Accuracy Rp(*)

Accuracy Position

250, 500, 1000, 1500

0.1 0.99 1.0 19.9 20 100

0.01 0.1 1

(5.0rdg + 5dgt)

1 module

(*) Accuracy declared for VPN240V, Rfault10;. Accuracy of Rp and R(+) notdeclared if R(+)0.2M and R(-)<0.2M,

Accuracy of Rp and R(-) not declared if R(+) < 0.2M and R(-) 0.2M.

Open circuit voltage

<1.25 x rated test voltage

Short-circuit current

<15mA (peak) for each test voltage

Rated test current

1mA on R = 1k x Vnom (with VPN, VPE, VNE= 0)

Measuring limit:

0.05M, 0.1M, 0.23M, Number of modules: 4 ÷ 35

The GFL function provides correct results with the following conditions:

Test carried out with Vtest Vnom on a single string disconnected from inverter, from overvoltage protections and earth

connections.

Test carried out upstream of possible blocking diodes

Single fault of low insulation located at any position in the string

Insulation resistance of the single fault <0.23M

Environmental conditions similar to those in which the fault occurred

EN – 57

PVCHECKs-PRO

IVCK FUNCTION Accuracy is indicated as ±[%reading + (number of digits*resolution)] at 23°C±5°C, <80%RH

DC Voltage @ OPC Range [V] 3.0 1500.0
Minimum VPN voltage to start the test: 15V
DC Current @ OPC Range [A] 0.10 40.00
DC Voltage @ STC Range [V] 3.0 1500.0
DC Current @ STC Range [A] 0.10 40.00

Resolution [V] 0.1
Resolution [A] 0.01
Resolution [V] 0.1
Resolution [A] 0.01

Accuracy
(1.0rdg + 2dgt)
Accuracy
(1.0rdg + 2dgt)
Accuracy
(4.0rdg + 2dgt)
Accuracy
(4.0rdg + 2dgt)

10.2. GENERAL CHARACTERISTICS

Reference guidelines Instrument safety: EMC: Safety of measuring accessories: Measurements: Insulation: Pollution level: Measurement category:

IEC/EN61010-1, IEC/EN61557-1 IEC/EN61326-1 IEC/EN61010-031 IEC/EN62446 (IVCK) IEC/EN61557-2 (M) IEC/EN61557-4 (RPE) double insulation 2 CAT III 1000VAC, CAT III 1500VDC to earth, Max 1000VAC, 1500VDC between inputs

Display, memory and PC interface

Type of display:

LCD custom, 240x240pxl, with backlight

Saved data:

max 999

Internal database:

max 64 modules

PC interface:

optical/USB and WiFi

Interface with SOLAR03:

Bluetooth connection (max distance 100m)

Power supply Battery type:
Low battery indication: Battery duration (@Temp = 20°C):
Auto power off: Mechanical characteristics Size (L x W x H) Weight (batteries included): Mechanical protection:

6×1.5V alkaline type AA LR06 or 6×1.2V rechargeable batteries NiMH type AA LR06 symbol ” ” on the display RPE: >500 Tests (RPE 0.1) GFL, M: >500 tests (Riso1kxVTest) IVCK: >500 tests (no SOLAR03) after 5 minutes’ idling
235 x 165 x 75mm 1.2kg IP40

EN – 58

PVCHECKs-PRO

10.3. ENVIRONMENTAL CONDITIONS FOR USE

Reference temperature:

23°C ± 5°C (73°F ± 41°F)

Operating temperature:

-10°C ÷ 50°C (14°F ± 122°F)

Allowable relative humidity:

<80%RH (without condensation)

Storage temperature:

-10°C ÷ 60°C (14°F ± 140°F)

Storage humidity:

<80%RH (without condensation)

Max operating altitude:

2000m

This instrument satisfies the requirements of Low Voltage Directive 2014/35/EU (LVD) and of Directive 2014/30/EU (EMC) and RED 2014/53/EU.
This instrument satisfies the requirements of European Directive 2011/65/EU (RoHS) and 2012/19/EU (WEEE).
10.4. ACCESSORIES See the attached packing list

CAUTION
Only the accessories provided together with the instrument will guarantee safety standards. They must be in good conditions and replaced with identical models, when necessary

EN – 59

PVCHECKs-PRO

APPENDIX ­ THEORETICAL OUTLINE

11.1. MEASUREMENT OF POLARIZATION INDEX (PI) The purpose of this diagnostic test is to evaluate the influence of the polarization effects. Upon the application of a high voltage to insulation, the electric dipoles distributed in the insulation align in the direction of the applied electric field. This phenomenon is called polarization. Because of the polarized molecules, a polarization (absorption) current generates, which lowers the total value of insulation resistance. Parameter PI consists in the ratio between the value of insulation resistance measured after 1 minute and after 10 minutes. The test voltage is maintained throughout the whole duration of the test and, at the end, the instrument provides the value of ratio:

Some reference values:

PI Value
<1.0 from 1.0 to 2.0 from 2.0 to 4.0

4.0

Insulation condition
Not acceptable Dangerous Good Excellent

11.2. DIELECTRIC ABSORPTION RATIO (DAR) Parameter DAR consists in the ratio between the value of insulation resistance measured after 30s and after 1 minute. The test voltage is maintained throughout the whole duration of the test and, at the end, the instrument provides the value of ratio:

Some reference values:
DAR Value < 1.0
from 1.0 to 1.25 from 1.25 to 1.6

1.6

Insulation condition
Not acceptable Dangerous Good Excellent

EN – 60

PVCHECKs-PRO

ASSISTANCE

12.1. WARRANTY CONDITIONS This instrument is warranted against any material or manufacturing defect, in compliance with the general sales conditions. During the warranty period, defective parts may be replaced. However, the manufacturer reserves the right to repair or replace the product. Should the instrument be returned to the After-sales Service or to a Dealer, transport will be at the Customer’s charge. However, shipment will be agreed in advance. A report will always be enclosed to a shipment, stating the reasons for the product’s return. Only use original packaging for shipment; any damage due to the use of non-original packaging material will be charged to the Customer. The manufacturer declines any responsibility for injury to people or damage to property. The warranty shall not apply in the following cases: Repair and/or replacement of accessories and battery (not covered by warranty). Repairs that may become necessary because of an incorrect use of the instrument or
due to its use together with non-compatible appliances. Repairs that may become necessary because of improper packaging. Repairs which may become necessary because of interventions performed by
unauthorized personnel. Modifications to the instrument performed without the manufacturer’s explicit
authorization. Use not provided for in the instrument’s specifications or in the instruction manual. The content of this manual cannot be reproduced in any form without the manufacturer’s authorization. Our products are patented and our trademarks are registered. The manufacturer reserves the right to make changes in the specifications and prices if this is due to improvements in technology. 12.2. ASSISTANCE If the instrument does not operate properly, before contacting the After-sales Service, please check the conditions of batteries and cables and replace them, if necessary. Should the instrument still operate improperly, check that the product is operated according to the instructions given in this manual. Should the instrument be returned to the After-sales Service or to a Dealer, transport will be at the Customer’s charge. However, shipment will be agreed in advance. A report will always be enclosed to a shipment, stating the reasons for the product’s return. Only use original packaging for shipment; any damage due to the use of non-original packaging material will be charged to the Customer.
EN – 61

HT ITALIA SRL Via della Boaria, 40 48018 ­ Faenza (RA) ­ Italy T +39 0546 621002 | F +39 0546 621144 M ht@ht-instruments.com | ht-instruments.com

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