Data Loggers

"Now more than ever, NRG Systems offers an easy-to-use data logger. The plug-and-play SymphoniePRO system shows great improvement over preceding models with expanded channel options and compatibility with virtually all meteorological sensors. Additionally, the ability to live-connect to the logger allows easy access to check status and control data collection."
Daniel Votteler Senior Wind Resource Engineer, SOWITEC development GmbH

Data loggers are the core component of NRG’s complete system approach to wind and solar measurement applications. Data are collected from readings of meteorological sensors and other devices and then stored in our loggers for either manual retrieval or automated delivery to the location of your choice.

Our data loggers are easily configured from the comfort of your office or directly in the field, simple-to-install, and rugged enough to perform reliably worldwide—in extreme cold or tropical environments.

The newest data logger in the Symphonie series, SymphoniePRO® Data Logger, brings with it significant feature upgrades to an unparalleled legacy of purpose-built renewable energy data loggers.

Below is a summary table highlighting the major differences between SymphoniePRO and its predecessor, SymphoniePLUS3, which is now discontinued. See the individual product pages to learn more.

GENERAL
Model	SymphoniePRO®	SymphoniePLUS®3
Description	User-friendly yet flexible; powerful measurement technology for the renewable energy professional	Reliable and economical; tailored to wind resource assessment
Applications	Wind and solar assessment, monitoring, and forecasting	Wind and solar assessment, monitoring, and forecasting
MEASUREMENT CAPABILITY
Total Channel Capacity	26+ channels (16-channel version also available - see product page for details)	15 channels
Serial	2 x RS-485 ports	N/A
Counter Channels	• 12 channels • Wide range of industry-standard anemometers; no interface cards required • Accumulator outputs (e.g. Tipping Bucket Rain Gauge); no interface cards required • Other signals up to 2,500 Hz	• 9 channels: 6 built-in, 3 flex • Wide range of industry-standard anemometers; SCMs required after six sensors • Accumulator output (e.g. Tipping Bucket Rain Gauge); SCM required
Analog Channels	• 14 channels: 7 built-in, 7 P-SCM • Wider range of industry-standard analog sensors • Configurable deadband compensation (compatible with wider range of wind direction vanes) • True differential measurements (e.g., for pyranometers)	• 7 channels: 4 built-in, 3 flex • Wide range of industry-standard analog sensors • Fixed deadband compensation for NRG 200P wind vane on ch. 7-8
Analog Measurement Resolution	16-bit A/D conversion	10-bit A/D conversion
DATA COLLECTION
Sample Rate	1 Hz	1 Hz
Averaging Interval	User-selectable (10-minute default)	10-minute; fixed
Data Storage	Redundant storage via: • Internal Flash memory (8 MB) • SD card (512 MB and 2 GB options available)	SD Card (128 MB)
Statistics Recorded per Channel	• Average • Standard deviation • Minimum/Maximum 1-sec sample • Maximum 3-sec gust with direction • Sum for totalizer inputs	• Average • Standard deviation • Minimum/Maximum 1-sec sample • Sum for totalizer inputs
1 Hz Sample Data Storage	Yes, optional setting by channel	N/A
Time Synchronization	GPS and/or SNTP Internet Time Server	SNTP Internet Time Server
Data Security	• Logger access PIN with 2-day lockout after 8 failed attempts • 128-bit file encryption with user-specified password	Keypad lockout access PIN Data encryption PIN
COMMUNICATIONS
iPackGPS Compatibility	• Cellular (GSM/GPRS, 3G GSM, and CDMA) • Satellite (Immarsat BGAN M2M) • iPackACCESS	• Cellular (GSM/GPRS, 3G GSM, and CDMA) • Satellite (Iridium) • iPackACCESS
SCADA/MODBUS Capability	Yes, via iPackACCESS	Yes, via iPackACCESS
Remote Firmware Upgrades	Logger and iPack, via real-time MetLink connection	iPack only, via iPack POP3 inbox
Remote Configuration Changes	Yes, via real-time MetLink connection	Yes, via patch file emailed to iPack POP3 inbox
Remote Live Data	Yes, via real-time MetLink connection	No