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LOGR | Met Data Logger - Solar

The LOGR | Met Data Logger is the next generation in wind and solar resource measurement, combining unparalleled security and ease of use to deliver the highest quality data for your pre- and post-construction campaigns.

  • LOGR | Met Data Logger - Solar
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LOGR | Met will be available in early 2025. Please contact your sales account manager directly, or sales@nrgsystems.com, to learn more.

* Please Note: LOGR | Met will be available in early 2025. Contact sales@nrgsystems.com today to learn more. 

The LOGR | Met Data Logger is a secure, highly versatile data logging system, powering NRG’s trusted data ecosystem with unparalleled ease of use and efficiency. Its flexible and scalable design, advanced measurement capabilities, and intuitive interface ensure the highest quality data and seamless integration into any measurement campaign, driving project success at every stage.  

ADVANCED SECURITY MEASURES REDUCE RISK WITHOUT SACRIFICING EASE OF USE 

  • Enhanced encryption: Robust data encryption and encrypted web access protect critical information, ensuring data integrity and maintaining confidentiality. 
  • Hardened communication protocols: Securely transmit data from LOGR | Met to user’s preferred endpoint with advanced, fortified protocols to prevent unauthorized access. 
  • Comprehensive access control: Password protection and optional data encryption at rest ensure that only authorized users can access LOGR | Met, keeping critical information secure and uncompromised. 

UNMATCHED VERSATILITY, BUILT ON 40+ YEARS OF USER-DRIVEN DESIGN 

  • Integration with NRG’s wind and solar resource measurement systems: LOGR | Met leverages NRG’s ease-of-use legacy, seamlessly integrating into pre- and post-construction wind and solar campaigns to streamline procurement, installation, and O&M, improving efficiency at every stage of project development. 
  • Flexible global communication options: Select the ideal communication option for your project, including GPS, VZW-ATT, and 4G LTE. LOGR | Met features an internal modem to streamline setup and reduce system complexity, as well as a dedicated external modem port for SCADA and satellite integration if preferred.  
  • Streamline configuration: Easily configure your device, channels, and sensors via our secure mobile app or web browser depending on your workflows and preferences. 
  • Expandable storage: A micro-SD card slot for expandable storage makes LOGR | Met the most scalable data logger, capable of meeting growing data demands. 
  • 3 programmable outputs: Configure and control external loads, such as sensor heaters, with ease using LOGR | Met’s programmable outputs.  
  • Power MPPT, DC Charger, Battery: Efficiently manage the power supply of your wind or solar measurement system with a built-in charge controller and DC charger, allowing for cost- effective power supply management. 

BANKABLE DATA AVAILABLE WHEN AND WHERE YOU NEED IT 

  • Accurate, high-resolution measurements:Record analog measurements at an IEC-compliant 1 Hz sample rate, ensuring precise data collection.  
  • Customizable data channels: Select which channels to record 1-second data, allowing for efficient collection of high-resolution data tailored to your specific needs.   
  • Flexible sampling rates: Configure the sampling rate for statistical data files, with storage options available in 1, 5, or 10-minute intervals to match your project requirements. 

CONNECTIVITY TO MEET ANY REQUIREMENTS AND OPTIMIZE DATA ACCESSIBILITY  

  • Integration with NRG Mobile App, NRG Cloud, and NRGPy: Access and synchronize data through NRG Mobile App, NRG Cloud, or Python APIs for real-time monitoring, remote site configuration, and secure data management from anywhere.  
  • Dual ethernet ports: Simultaneously and securely connect to local and SCADA networks, enhancing connectivity, network redundancy, and infrastructure robustness. 
  • Integrated cellular modem: Maintain accessibility in remote locations with the built-in 4G/GPS cellular modem. 
  • Built-in Wi-Fi: Immediate on-site device access and configuration capability via mobile and desktop app or local web application. 
  • Built-in GPS: Ensure precise geolocation and enhance data accuracy with integrated GPS. 



DATA LOGGER COMPARISON:                              

 

SymphoniePRO (26-Ch)    

  LOGR | Solar   

   LOGR | Met

 

SAMPLING INTERVAL

 

1 Hz

 

1 Hz

 

1 Hz

 

AVERAGING INTERVAL

 

1-60 min

 

1 min

 

1, 5 or 10 min

 

STORAGE MEDIUM

8 MB internal flash memory with options for either 512 MB or 2 GB SD card

 

8 GB microSD

 

8 GB microSD (upgradeable)

 

 

TERMINAL TERMINATION

 

Screw Terminals

 

Screw Terminals (Plugs)

 

Screw Terminals (Plugs)

 

 

 

 

 

 

 

CHANNEL CAPACITY

14 analog channels: 7 built-in, 7 configurable with signal conditioning modules (P-SCMs)

 

14 analog channels,

7 differential

 

8/16 differential/analog channels

2 RS-485 communication

channels, each full or half duplex with support for up to 6 devices

24 serial channels via 2 RS-485 communication ports

48 serial channels via 4 RS-485 communication ports

12 counter channels,

10 calculated channels

5 counter channels, 10 calculated channels plus dedicated soiling ratio calculation

10 counter channels - independent terminals, 20 calculated channels

 

No dedicated soiling channel

2 PV Input channels (soiling measurement)

 

No dedicated soiling channels

 

RECORDED PARAMETERS

Average, St. Dev, Min/Max 1-sec sample, Max 3-sec gust with direction, Sum for totalizer inputs

Average, St. Dev, Min/Max 1-sec sample, Max 3-sec gust with direction, Sum for totalizer inputs

Average, St. Dev, Min / Max 1-sec sample, Max 3-sec gust with direction, Sum for totalizer inputs

 

 

SECURITY

 

Logger access PIN with 2-day lockout after 8 failed attempts, 128-bit data file encryption with user-specified password

 

 

Password-protected web server access

• Password-protected web server access.

• Optional data encryption at rest

• Encrypted web-gui access SFTP, SMTP (TLS)

RESOLUTION

Analog Measurement Accuracy

 

±0.04% Full Scale

Uncertainty (k=2): 450 µV @ (-10

to +10) V | 61 µV @ (-1 to +1) V |

8.5 µV @ (-70 to +70) mV

Uncertainty (k=2): 450 µV @ (-10

to +10) V | 61 µV @ (-1 to +1) V |

8.5 µV @ (-70 to +70) mV

Analog Measurement Resolution

16-bit A/D conversion (76 uV resolution across 5 V range)

 

24-bit signed A/D conversion

 

24-bit signed A/D conversion

CONFIGURATION

 

 

 

 

 

User Interface

 

 

SymphoniePRO Desktop Application

 

 

Web-based user interface via Ethernet connected computing device with supported browser

• Web-based user interface via

• Ethernet/Wifi/Cellular connected computing device with supported browser

• Mobile & Desktop Application for configuration

• NRG Cloud

LCD with 16 button keypad with audible feedback

 

Recessed reset button on front panel

• Recessed reset button on front panel

• 3 LEDs & Audible Beeper

POWER

 

Batteries

Two (2) 1.5 volt D-Cell batteries (included with logger)

• 12V external battery for system power

• Coin cell battery for clock backup

• 12V external battery for system power

• Coin cell battery for clock backup

 

 

External Power Input

14 VDC iPackGPS 2300mhA equipped with PV provides autonomous power to data logger when connected, making D-Cell batteries back up power

 

 

16 - 28 VDC

 

 

10 to 28V DC input

External Solar Input

Yes, 16-28 VDC

External charge control required

PV Input (integrated charge controller)

 

 

 

External Power Output

 

5V, 12V sensor power

Constant 12 V source for powering analog sensors (50 mA per excitation port, 7 ports)

 

Constant 5 & 12V and pulsed source for powering sensors

 

Requires external power supply

Constant 12 V source for powering Modbus sensors (1000 mA shared by three COM-A ports and additional 1000mA to COM-B port)

Constant 12 V source for powering Modbus sensors (1000 mA for each of the 4 COM ports with one terminal block per port)

SOFTWARE

 

Type

 

Desktop App

 

Onboard web server for logger configuration and administration

 

Onboard web server for logger configuration and administration

ENVIRONMENTAL

Operating Temperature Range

-40 °C to 65 °C (-40 °F to 149 °F)

-40 °C to 65 °C (-40 °F to 149 °F)

-40 °C to 65 °C (-40 °F to 149 °F)

 

 

Operating Humidity Range

0 to 100% relative humidity non-condensing

0 to 100% relative humidity non-condensing

0 to 100% relative humidity non-condensing

 

IP65

IP65 ingress protection with proper installation in NRG shelter box enclo- sure

IP65 ingress protection with proper installation in NRG shelter box enclosure

PHYSICAL

 

Dimensions

 

(222 x 187 x 74) mm

 

(190 x 102 x 102) mm

 

(246 x 135 x 132) mm

OTHER

Web Service

NRG Cloud

NRG Cloud

NRG Cloud

Programmability

User friendly

User friendly

User friendly

Smart Sensor

2 ports

2 ports - 4 terminal blocks

4 ports - 4 terminal blocks

Warranty

2 years

2 years

2 years

Mobile App

GPS

✓   (for units with internal modems)

Modem (4G LTE)

iPack

External

✓   

  • Seamless integration with NRG’s turnkey wind and solar resource measurement systems, optimizing efficiency and simplifying processes from project planning to operation   
  • Streamlined design minimizes system complexity and facilitates straightforward setup and management 
  • Flexibility to accommodate unique project requirements and supports a wide range of system configurations  
  • Real-time data access improves operational efficiency and facilitates effective decision-making with up-to-date data throughout all project stages 
  • Ensures accurate and dependable data collection for critical measurements, supporting project bankability and reliability 

Please call us at +1 802-482-2255 for specifications.