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NRG Product Manual

LOGR-S Data Logger

NRG_LOGR-S_Manual
Rev. 1.0

[email protected] | Page 12

5 November 2021

Power Source

LOGR requires a DC power supply of 16 to 28 V DC

and consumes up to 4 A of current at 16 V when

supplying power to attached smart sensors. Nominal supply voltage is 16 V, and the unit contains no
boost regulators.

If the voltage decreases below 16 V

, the unit still functions but

Modbus and analog sensor excitation

ports follow the input voltage down

. When the input voltage gets dangerously low and data can no

longer be reliably acquired and recorded, the unit will shut down so that all internal settings are
protected.

Summary of Contents for LOGR-S

Page 1: ...LOGR S Manual 11 5 2021 1 ...

Page 2: ...the IP Address 14 Modbus RTU 16 NTP Server 17 System Configuration 18 Site Properties 18 Date and Time 19 System Info 19 Channel Configuration Data Collection 20 Analog Sensors 20 Analog Channel Configuration 21 Modbus RTU Serial Sensor Configuration 24 Serial Port Configuration 24 Serial Channel Configuration 25 PV Soiling Configuration 28 Sensor Configuration Reset 29 Data Storage 30 Firmware Up...

Page 3: ...48 SECTION 5 COMMUNICATION DATA 49 Modbus 49 Network Data Flow 49 Demo Client 50 Modbus Map 50 Export File Format 51 SECTION 6 POWER SYSTEMS 56 Powering the LOGR Logger 56 Powering Sensors 56 Grid Tied Power Systems 56 Autonomous Power Systems 56 APPENDIX A TECHNICAL SPECIFICATIONS 57 APPENDIX B MODBUS MAP 59 APPENDIX C DECLARATION OF CONFORMITY 69 APPENDIX D WARRANTY 71 Sending Items for Repair 7...

Page 4: ...er either to themselves or to the equipment data Note This style is used to indicate a tip or an important note This symbol indicates information that is critical to understanding the operation of the equipment and or actions that could damage the equipment without endangering the user This symbol indicates a hazard to the user the equipment or both that could result in serious injury or damage Th...

Page 5: ...t port 2 Open a web browser and connect to the LOGR default IP Address via URL IP address index 3 Configure FTP Server optional feature 4 Update LOGR firmware 5 Configure Static IP Address Logger Network Settings Site name project name location details Logger System Configuration Time Zone setting Logger System Configuration NTP server Logger Time Synchronization optional Channels for the sensors ...

Page 6: ...ct documentation and the following information Customer name Who purchased equipment Item number or description Serial number s When equipment was purchased Where equipment is installed including terrain and climatic conditions Description of the problem with some detail What events took place leading up to the problem What you have tried while attempting to solve the problem You may be asked to p...

Page 7: ... A comprehensive Modbus register set provides users easy access via Modbus TCP or RTU Internal storage holds 90 days of 1 second data to backfill SCADA systems The onboard FTP client moves ASCII data files from the logger onto a user specified FTP server via the Local Area Network allowing SCADA operators to continuously gather and collect backup data The user can also load configuration command d...

Page 8: ...dbus data retrieval Concept of Operation LOGR requires network infrastructure support to operate as a sensor to SCADA interface Modbus Client SCADA system to poll LOGR Web Browser for configuration of LOGR e g Google Chrome Optionally the LOGR utilizes Local FTP Server LOGR will deposit data diagnostic event log files if needed for backup purposes Local FTP Client for Administration of LOGR such d...

Page 9: ...ctrostatic damage ESD The included grounding cable should be affixed to Earth ground to provide a discharge path from the logger to earth Care should be taken to avoid ground loops in the system when planning out your installation When operating in higher ambient temperatures the outer surface of the logger may become hot to the touch Users should test or measure the temperature of the logger befo...

Page 10: ...tion needed to prepare and install your LOGR system See Error Reference source not found for explanations on the User Interface and Error Reference source not found for physical installation wiring Unpacking LOGR Confirm that you have received all components by comparing your order to the packing list included with your shipment Immediately contact NRG Systems if any of the components are missing ...

Page 11: ...er and ground inputs from other PV panels Wire gauges accepted are 24 to 12 AWG 0 205 to 3 31 mm LED Status Indicator Lights Two LEDs one green power and one red fault provide immediate user feedback at the logger A steady green light indicated consistent power and proper function of the LOGR A blinking red light indicates errors or an in progress firmware update Power Input LOGR requires 16 to 28...

Page 12: ... supplying power to attached smart sensors Nominal supply voltage is 16 V and the unit contains no boost regulators If the voltage decreases below 16 V the unit still functions but Modbus and analog sensor excitation ports follow the input voltage down When the input voltage gets dangerously low and data can no longer be reliably acquired and recorded the unit will shut down so that all internal s...

Page 13: ...will use to prepare your LOGR system for field installation Relevant operational details are provided to help you optimize the system and its communications for your site and project Connecting through the Ethernet port Once LOGR is powered it performs a starting sequence and will emit a beep when ready for configuration Connect to LOGR via Ethernet with a standard Cat 5 or Cat 6 cable to a device...

Page 14: ... or use a static IP address default option To set the IP address navigate to the Logger Menu at the top of the window and select Network Settings from the drop down options Using DHCP Obtain IP Address Automatically Enabled Using Static IP address Obtain IP Address Automatically Disabled Enter values for the fields below o IP Address o Net Mask Address o Gateway Address o DNS Address These fields ...

Page 15: ... still not made the LOGR can be reset to the default IP address by pushing and holding the RESET button on the logger face until a beep is heard The reset button is located between the 16 to 28 V DC input and the COM A 1 serial channel block If set to use DHCP and obtain a web address automatically and a DHCP server is not found LOGR defaults to IP Address 192 168 179 252 Once configured LOGR shou...

Page 16: ...ADA map To configure this port 1 Navigate to the Logger menu at the top of the page and select Network Settings from the drop down options 2 Scroll to the Modbus RTU Settings to complete setup 3 Edit the Client Address Baud Rate Data Bits Parity Stop Bits as necessary and choose if the Termination Resistor is Enabled or Disabled 4 Click the yellow Save button to apply changes to the port settings ...

Page 17: ...nfigure 1 Navigate to the Logger menu at the top of the page and select Time Synchronization from the drop down options The LOGR defaults to Disabled no NTP checks 2 Set the NTP mode to Local and enter the IP Address or URL of your local NTP server 3 Click the yellow Apply button Note that LOGR has an embedded coin cell battery installed to maintain operation of the real time clock through power d...

Page 18: ...at can describe a group of multiple sites This is used to provide a brief description of the overall project such as Windy Solar Farms Location This field contains the location name for the site A location description of up to 32 characters can be entered This is used to provide a brief description of the site such as Block B Tower and may include the site number if there are multiple in the same ...

Page 19: ...t daylight saving time Reference Time UTC Reference Time is the PC clock s current time displayed in UTC Pressing the Set Time button will update the logger s clock to the reference time Time Zone Select the LOGR s local time zone from the drop down list Note Use logger local standard time not daylight saving time The logger clock will not adjust for daylight saving time System Info This section p...

Page 20: ...vendifferentialorfourteensingle endedsensors oracombination thereof LOGRhasavarietyofdefaultsensorsavailable butgenericsensorsarealsosupportedby selectingthecorrectvoltagelevelforthespecifiedsensor Notethatthescaleof 75to 75 mVisfor usewithdifferentialsensorsonly Allothermeasurementlevelscanbeusedforeithersingleendedor differential sensors For complete analog sensor wiring instructions see the Req...

Page 21: ...annel of your choice Selecting Configure for a specific channel will send you to the Analog Channel Configuration page for the specified channel 1 Using the Sensor Type drop down select the sensor you are programming onto this channel 2 Edit the Description to fit your needs as necessary 3 Edit the Slope and Offset fields if the included default values should be changed 4 Enter the sensor serial n...

Page 22: ...ember 2021 5 Enter sensor height in meters 6 Enter the elevation angle azimuth angle 7 Select Done when all relevant values have been entered to return to the Analog Channels page 8 Repeat with the remaining occupied analog sensor channels The newly configured channels are displayed as UNSAVED CHANGES ...

Page 23: ...GR S Data Logger NRG_LOGR S_Manual Rev 1 0 support nrgsystems com Page 23 5 November 2021 To confirm the newly configured channels scroll to the bottom of the page and click the yellow Save button in the bottom right corner ...

Page 24: ...lable via Modbus registers The home page of the webserver provides a quick view of live data to ensure sensors are performing and are connected properly at set up time Serial Port Configuration Navigate to the Sensor menu at the top of the page and select Serial Ports Setup from the drop down options This page allows for COM ports A and B to be set for differing Baud Rates Stop Bits Data Bits and ...

Page 25: ...from the drop down options 2 Check the Configured checkbox 3 Using the drop down menus select the Port COM A or COM B then the Sensor Type from the list of supported serial sensors 4 Edit the Sensor Description to fit your needs as necessary The field auto populates with the Sensor Type chosen 5 Edit the Client Address to match that of the programmed sensor ID 6 Enter the sensor serial number give...

Page 26: ...ure serial channels 1 Select the desired previously configured sensor from the Sensor drop down menu This will automatically check the Enabled checkbox in the first column for the channel 2 Select the desired Measurand from the drop down menu 3 Edit the Slope and Offset fields if the included default values should be changed 4 Repeat for as many channels as necessary 5 Click the yellow Save button...

Page 27: ... November 2021 After saving the channel configurations the Web Interface will automatically route to the Sensor Outputs home page where Active channels report live data The drop down menu at the top right corner of the table allows alternative views of All Active Inactive and Unconfigured channels ...

Page 28: ...V panels Terminal ports on the front panel of LOGR are provided for landing wires from PV Soil and PV Clean panels To configure PV soiling measurements 1 Navigate to the Sensor menu at the top of the page and select Soiling Ratio Setup from the drop down options 2 Check the Compute box 3 Choose POA Irradiance Channel from the drop down options 4 Click the yellow Save button This saved PV Soiling R...

Page 29: ...l virtual button is clicked on the page or when the physical Clean Panel button at the soiling panels is pressed for two seconds Sensor Configuration Reset Clearing all sensor configurations is possible by navigating to the Logger menu at the top of the page and selecting Reset Sensor Config from the dropdown menu Clicking the orange Reset button will remove all values from the Analog Serial Soili...

Page 30: ...ained on a non removeable 8 GB microSD card embedded within the LOGR If a connection with the LOGR is lost the SD card will store files data diagnostics and event logs for up to 90 days These files can be retrieved via FTP See Data File Transfer in Section 4 5 for more information Firmware Updates To update firmware or view details of the firmware version navigate to the Logger menu at the top of ...

Page 31: ...ware file Click the yellow Upload button The LOGR will beep to confirm the action has been accepted by resetting and returning the web server to the Sensor Outputs home page This process may take several minutes during which the web server will be unresponsive The LOGR will reboot when the action is completed and the updated firmware can then be confirmed by navigating back to the Firmware page un...

Page 32: ...es will only be picked up by LOGR if the file name is command ini and will only be processed if the file content is formatted correctly To enact a command file 1 Navigate to the FTP server and find the command directory specified by the LOGR s File Transfer Settings 2 Navigate to the folder for the LOGR in question folder name is the serial number of the LOGR e g 000300 If the folder does not exis...

Page 33: ...on If you want to save your sensor configuration for transfer to another LOGR or to have as a backup this command file can be placed on the FTP server Once the export is complete there will be a unit_config_XXXXX bin file on the FTP server command command export sensor config Import Sensor Configuration To import a formerly exported sensor configuration file to a LOGR this command file can be plac...

Page 34: ...mmand import unit config file parameters file name unit_config_000300 bin Export Files Configuration Data Diagnostic and Log files can be exported via a command ini file The data range and file type must be specified within the command file Files will be exported to the data folder in the subfolder of the same serial number as the LOGR they originated from command command export data files export ...

Page 35: ... turn the heater on off based on the value of the temperature sensor and the control temperature settings in the command file This only values in this file that should be edited are the on temperature which is the temperature in degrees C below which the SR30 heater should turn on and hysteresis which is the amount of temperature lag in degrees C for heater control The other parameters are registe...

Page 36: ...u at the top of the page and select Diagnostics from the dropdown options Diagnostic information is divided into three sections Control Analog and Excitation Status Control Diagnostics This section contains voltage and current information of the main control board of LOGR these values are constantly monitored Measurements within normal limits display a corresponding green status circle while measu...

Page 37: ...itored Measurements within normal limits display a corresponding green status circle while measurements not within tolerance show a red status circle to indicate an error condition Excitation Status This section displays the status of sensor excitations In the event of a channel failure for example due to an electrical short or high current the corresponding port analog or serial will display a re...

Page 38: ... page and selecting Status Registers from the dropdown menu will display several status registers All registers are available via SCADA however the critical parameters Modbus Registers 32 and 34 are displayed on this page and can be reviewed for major function faults Registers within normal limits display a corresponding green status circle while registers not within tolerance show a red status ci...

Page 39: ...sensors Any structure that the logger is mounted to must be carefully grounded and protected against lightning The same careful grounding of the logger and sensors provides the best protection against lightning damage as well The LOGR grounding terminal labelled with chassis ground symbol to the left must be connected to a suitable earth ground The LOGR internal over voltage and noise suppression ...

Page 40: ...DIN Rail 1 Anchor the bottom of the black attachment clips on the back of the LOGR onto the bottom edge of the DIN rail by angling the unit 2 Push the unit upward to compress the clip attachemnt springs 3 Push the top towards the rail 4 Release the unit onto the rail and check the unit is secure LOGR was designed to be installed in an enclosure rated for environmental protection of IP66 or better ...

Page 41: ...readed 7 16545 Strain Relief Break thru Skinned over 24 30 cable diameter 1 NPT threaded 5 To pass a cable through a break thru strain relief carefully puncture the rubber grommet before passing sensor wires through the resulting hole When using grommets or gaskets with a set number of pre made holes seal the unused holes with plumber s putty or short sections of scrap cable 1 2 long All wires com...

Page 42: ...o a port land the signal wire in the SIG SIG terminal that corresponds to the channel number configured for the sensor on the Web Interface For example if the single ended NRG BP60 sensor is configured on channel 4 the signal wire must land in port A2 terminal SIG channel 4 When connecting a differential sensor both SIG SIG terminals are used by the sensor so the even channel number of the pair ca...

Page 43: ...GR S Data Logger NRG_LOGR S_Manual Rev 1 0 support nrgsystems com Page 43 5 November 2021 Wiring Map Refer to this diagram to connect standard sensors to the LOGR or refer to the manufacturer s instructions for each sensor ...

Page 44: ...NRG Product Manual LOGR S Data Logger NRG_LOGR S_Manual Rev 1 0 support nrgsystems com Page 44 5 November 2021 ...

Page 45: ... and Data directory have been created In each folder there should be a subfolder for each connected logger named as the five digit SN ex 00201 1 Navigate to the Logger menu at the top of the page and select File Transfer Settings from the drop down menu 2 Change the State to Enabled 3 Change the Mode to Active or Passive based on your server needs 4 Check the boxes to enable Commands and Data 5 En...

Page 46: ...NRG Product Manual LOGR S Data Logger NRG_LOGR S_Manual Rev 1 0 support nrgsystems com Page 46 5 November 2021 The logger is now configured to transfer to from the local FTP server ...

Page 47: ...ile type contains statistical diagnostic data voltages and currents for troubleshooting purposes Log Files log This file type contains a list of unix timestamped events and errors Data File Types One Second Data File Sends one second sensor data only Statistical Data File Default option Sends statistical data only Both Sends a file with both one second and statistical data File Transfer Schedule B...

Page 48: ...ays before the current date Select the File Type see file type descriptions above to export and click the yellow Transfer button to enact the action Diagnostic and log files are sent regardless of the data file type selected All exported files are human readable and file names are formatted as YYYYMMDD_HHMM_XXXXX_ZZZZZZ where XXXXX is the LOGR serial number and ZZZZZZ is the index of the file For ...

Page 49: ...NRG Product Manual LOGR S Data Logger NRG_LOGR S_Manual Rev 1 0 support nrgsystems com Page 49 5 November 2021 SECTION 5 COMMUNICATION DATA Modbus Network Data Flow ...

Page 50: ...y that facilitates installation where configuration of the LOGR Modbus server is required The utility allows the user to read real time values from the LOGR registers Access to the Modbus Demo Client is found here https www nrgsystems com support product support software ipackaccess modbus client demonstration application Modbus Map See Appendix B Modbus MapAppendix B Modbus Map ...

Page 51: ... event log These data are exported in a human readable format as plain ASCII text A sensor sample data file consists of three sections Unit configuration parameters Sensor description and channel configuration information Sensor sample data from enabled channels Depending on the file export type selected the sensor sample data section will contain one of three formats see File Types on page 42 Sam...

Page 52: ...NRG Product Manual LOGR S Data Logger NRG_LOGR S_Manual Rev 1 0 support nrgsystems com Page 52 5 November 2021 Example exported data file ...

Page 53: ...NRG Product Manual LOGR S Data Logger NRG_LOGR S_Manual Rev 1 0 support nrgsystems com Page 53 5 November 2021 Samples Only data file Stats Only data file ...

Page 54: ...ta for MCU and analog sensor boards Diagnostic data for the MCU board Raw power in 12 4V supply Voltage 12 4V supply current mA 3 3V supply voltage 3 3V supply current mA COM A excitation voltage COM A excitation current mA COM B excitation voltage COM B excitation current mA Diagnostic data for the analog sensor board VIN Raw power 13 3V voltage 13 3V current mA 15V voltage 12V voltage 5V voltage...

Page 55: ...e 55 5 November 2021 Event log file format is also provided in plain text and consists of information activity and fault events that could be useful to users and NRG technicians A healthy LOGR unit will generate very small event files A typical full event file should look like the following ...

Page 56: ...pported via LOGR is 2350 mA at 12 V For power planning purposes assume a maximum of 1 6 W 100 mA at 16 V for the LOGR alone for a total of 2450 mA at 12 V or about 30 W total Note that the efficient power regulators in the LOGR will draw less current when input voltage is higher Grid Tied Power Systems When grid power is available NRG has a power supply system preconfigured to fit the standard LOG...

Page 57: ... Standard analog sensors including NRG meteorological sensor suite T60 Temperature BP60 Barometric Pressure RH5X Relative Humidity etc Industry standard pyranometers Hukseflux SRxx series EKO MS xx series Kipp Zonen CMP series etc 10K NTC Thermistor and RTD PT100 PT1000 type temperature sensors Analog Measurement Accuracy Uncertainty k 2 450 µV 10 to 10 V 61 µV 1 to 1 V 8 5 µV 70 to 70 mV RS 485 C...

Page 58: ...85 port for Modbus RTU server Power requirements Batteries Coin cell battery for clock backup External power input 16 to 28 VDC External solar input Contact NRG sales for accompanying backup power supply system options External power output Constant 12 V source for powering analog sensors 50 mA per excitation port 7 ports Constant 12 V source for powering Modbus sensors 1000 mA shared by three COM...

Page 59: ... Status 1 UnsignedInteger32BitL 30 30 System Status 2 UnsignedInteger32BitL 32 32 System Status 3 UnsignedInteger32BitL 34 34 System Status 4 UnsignedInteger32BitL 36 36 System Status 5 UnsignedInteger32BitL 38 38 System Status 6 UnsignedInteger32BitL 40 40 System Status 7 UnsignedInteger32BitL 42 42 Slave Baud UnsignedInteger32BitL 44 44 Slave Parity UnsignedInteger32BitL 46 46 Slave Data Bits Un...

Page 60: ...int32BitL 10038 10 Analog Scaled Channel 6 FloatingPoint32BitL 10040 12 Analog Scaled Channel 7 FloatingPoint32BitL 10042 14 Analog Scaled Channel 8 FloatingPoint32BitL 10044 16 Analog Scaled Channel 9 FloatingPoint32BitL 10046 18 Analog Scaled Channel 10 FloatingPoint32BitL 10048 20 Analog Scaled Channel 11 FloatingPoint32BitL 10050 22 Analog Scaled Channel 12 FloatingPoint32BitL 10052 24 Analog ...

Page 61: ...305 FloatingPoint32BitL 10246 10 Calculated Scaled Channel 306 FloatingPoint32BitL 10248 12 Calculated Scaled Channel 307 FloatingPoint32BitL 10250 14 Calculated Scaled Channel 308 FloatingPoint32BitL 10252 16 Calculated Scaled Channel 309 FloatingPoint32BitL 10254 18 Calculated Scaled Channel 310 FloatingPoint32BitL 15000 0 Year UTC UnsignedInteger32BitL 15002 2 Month UTC UnsignedInteger32BitL 15...

Page 62: ...Channel 8 Min FloatingPoint32BitL 15072 72 Analog Stats Channel 8 Max FloatingPoint32BitL 15074 74 Analog Stats Channel 8 SD FloatingPoint32BitL 15076 76 Analog Stats Channel 9 Average FloatingPoint32BitL 15078 78 Analog Stats Channel 9 Min FloatingPoint32BitL 15080 80 Analog Stats Channel 9 Max FloatingPoint32BitL 15082 82 Analog Stats Channel 9 SD FloatingPoint32BitL 15084 84 Analog Stats Channe...

Page 63: ...ts Channel 104 Min FloatingPoint32BitL 15488 28 Serial Stats Channel 104 Max FloatingPoint32BitL 15490 30 Serial Stats Channel 104 SD FloatingPoint32BitL 15492 32 Serial Stats Channel 105 Average FloatingPoint32BitL 15494 34 Serial Stats Channel 105 Min FloatingPoint32BitL 15496 36 Serial Stats Channel 105 Max FloatingPoint32BitL 15498 38 Serial Stats Channel 105 SD FloatingPoint32BitL 15500 40 Se...

Page 64: ... Stats Channel 114 Min FloatingPoint32BitL 15568 108 Serial Stats Channel 114 Max FloatingPoint32BitL 15570 110 Serial Stats Channel 114 SD FloatingPoint32BitL 15572 112 Serial Stats Channel 115 Average FloatingPoint32BitL 15574 114 Serial Stats Channel 115 Min FloatingPoint32BitL 15576 116 Serial Stats Channel 115 Max FloatingPoint32BitL 15578 118 Serial Stats Channel 115 SD FloatingPoint32BitL 1...

Page 65: ...itL 15648 68 Serial Stats Channel 124 Max FloatingPoint32BitL 15650 70 Serial Stats Channel 124 SD FloatingPoint32BitL 15844 0 Calculated Stats Channel 301 Average FloatingPoint32BitL 15846 2 Calculated Stats Channel 301 Min FloatingPoint32BitL 15848 4 Calculated Stats Channel 301 Max FloatingPoint32BitL 15850 6 Calculated Stats Channel 301 SD FloatingPoint32BitL 15852 8 Calculated Stats Channel 3...

Page 66: ...Stats Channel 310 Average FloatingPoint32BitL 15918 74 Calculated Stats Channel 310 Min FloatingPoint32BitL 15920 76 Calculated Stats Channel 310 Max FloatingPoint32BitL 15922 78 Calculated Stats Channel 310 SD FloatingPoint32BitL 16020 0 MCU Diag VIn Raw Power Average FloatingPoint32BitL 16022 2 MCU Diag VIn Raw Power Min FloatingPoint32BitL 16024 4 MCU Diag VIn Raw Power Max FloatingPoint32BitL ...

Page 67: ...itL 16198 2 Analog Diag VIn Raw Power Min FloatingPoint32BitL 16200 4 Analog Diag VIn Raw Power Max FloatingPoint32BitL 16202 6 Analog Diag VIn Raw Power SD FloatingPoint32BitL 16204 8 Analog Diag VSense 13 3V Average FloatingPoint32BitL 16206 10 Analog Diag VSense 13 3V Min FloatingPoint32BitL 16208 12 Analog Diag VSense 13 3V Max FloatingPoint32BitL 16210 14 Analog Diag VSense 13 3V SD FloatingP...

Page 68: ...nalog Diag VSense 15V Min FloatingPoint32BitL 16248 52 Analog Diag VSense 15V Max FloatingPoint32BitL 16250 54 Analog Diag VSense 15V SD FloatingPoint32BitL 16252 56 Analog Diag ISense 12V Average FloatingPoint32BitL 16254 58 Analog Diag ISense 12V Min FloatingPoint32BitL 16256 60 Analog Diag ISense 12V Max FloatingPoint32BitL 16258 62 Analog Diag ISense 12V SD FloatingPoint32BitL ...

Page 69: ...NRG Product Manual LOGR S Data Logger NRG_LOGR S_Manual Rev 1 0 support nrgsystems com Page 69 5 November 2021 APPENDIX C DECLARATION OF CONFORMITY ...

Page 70: ...NRG Product Manual LOGR S Data Logger NRG_LOGR S_Manual Rev 1 0 support nrgsystems com Page 70 5 November 2021 ...

Page 71: ...MA number and a return address with phone number The foregoing limited warranty is given in lieu of all other warranties express or implied NRG specifically disclaims all implied warranties including but not limited to any implied warranties of merchantability and fitness for a particular purpose The above limited warranty expressly excludes and NRG shall not be liable for any incidental or conseq...

Page 72: ...freight may seem lower than the courier service but air freight costs do not include customs clearance airport handling break bulk fees and inland delivery to NRG Systems Attach a Commercial Invoice to the carton The Commercial Invoice should include the following information Name and address of the shipper NRG Systems complete address and telephone number as the consignee Description of the items...

Page 73: ...to door courier service NRG Systems will send you a shipment advisement when the repaired item is shipped US Customers Please see items 1 4 and 5 above Send your item s to NRG Systems Freight Prepaid and Insured Shipments sent freight collect will not be accepted by NRG Systems APPENDIX E REFERENCES Deceglie M G Muller M Kurtz S Defreitas Z 2016 43rd IEEE Photovoltaic Specialists Conference In Nat...

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