Solar Energy Technologies

4501 103rd Court NE #100

Circle Pines, MN 55014  USA

Phone: 763-354-2835

info@solarenergytechnologies.net

Solar PV and Grid Energy Monitoring Specifications

Data Logger Operating Specifications

• 12 VAC from 120 VAC wall plug-in transformer, OR 12-48 VDC battery backup system
• Consumes only 2 watts continuous power or 45 watt-hours/24 hours
• Recommended operating temperature: 50º to 90ºF
• Sampling rate: readings taken every 2 seconds, averaged in integer minute intervals on plots
• Works with up to two inverters
• Data Logger protected from voltage surges and lightning
• Low Voltage inputs to Data Logger
• Outside sensors use weatherproof Nema 4 junction box

Maximum Data Channels In Use at the Same Time (11 of these 13)

• DC high voltage from solar array
• DC battery backup voltage
• DC current (Amps) - up to 3
• AC voltage (grid Volts)
• AC voltage (external)
• AC current (Amps) - up to 3
• Array temperature
• Ambient temperature
• Irradiance (Watts/m²)

Computer Requirements

• Windows 2000, XP, Vista
• Minimum 1 MB free hard drive space
• Minimum 1024 x 768 video
• One available COM port, OR USB port with USB to COM converter
• CD-ROM drive

Data Displayed Includes

• AC power (Watts)
• DC power (Watts)
• AC power use from grid (Watt hrs)
• AC power supplied to grid (Watt hrs)
• Watts displayed as VA (apparent power)
• Logging apparent power instead of real power
• KWH displayed as cumulative energy
• Outside temperatures (Watts/m²)
• Volts displayed as RMS voltage
• Amps displayed as RMS output current

Data Acquisition

• System memory stores data locally for up to 1+ years
• Data downloads automatically to personal computer

Optional Hardware Components Available

• AC current transducers - calibrated
• AC voltage transformers - calibrated
• DC current sensors - calibrated
• Temperature sensors - calibrated
• Irradiance sensors - calibrated
• RS232 (COM) to USB adapter
• Cat5 cables
• Net metering/grid power consumption module
• Serial to Ethernet (networking) module

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