NRG Systems

NRG S1 Anemometer

The NRG S1 Anemometer is a class 1 sensor that reduces measurement uncertainty and project cost for wind resource assessment and power performance testing.

  MEASNET CALIBRATED (#9405) MEASNET CALIBRATED, DWG (#9416) MEASNET CALIBRATED (2) (#14363) MEASNET CALIBRATED, DWG (2) (#14365)
Description  
Sensor type 3-Cup Anemometer 3-Cup Anemometer 3-Cup Anemometer 3-Cup Anemometer
Applications
  • Wind resource assessment
  • IEC 61400-12-1 turbine power curve verification
  • Operational wind farm monitoring
  • Meteorological studies
  • Environmental monitoring
  • Wind resource assessment
  • IEC 61400-12-1 turbine power curve verification
  • Operational wind farm monitoring
  • Meteorological studies
  • Environmental monitoring
  • Wind resource assessment
  • IEC 61400-12-1 turbine power curve verification
  • Operational wind farm monitoring
  • Meteorological studies
  • Environmental monitoring
  • Wind resource assessment
  • IEC 61400-12-1 turbine power curve verification
  • Operational wind farm monitoring
  • Meteorological studies
  • Environmental monitoring
Sensor range 0.638 m/s to 75 m/s (1.427 mph to 167.8 mph) 0.638 m/s to 75 m/s (1.427 mph to 167.8 mph) 0.638 m/s to 75 m/s (1.427 mph to 167.8 mph) 0.638 m/s to 75 m/s (1.427 mph to 167.8 mph)
Instrument compatibility All NRG Systems Data Loggers All NRG Systems Data Loggers All NRG Systems Data Loggers All NRG Systems Data Loggers
Measurement range 0.638 to 75 m/s 0.6 to 75 m/s 0.6 to 75 m/s 0.6 to 75 m/s
Output signal  
Signal type Form: Square Wave
Frequency: 532.9 Hz @ 50 m/s (112 mph)
Amplitude: Equal to supply voltage, max. 15 V 		Form: Square Wave
Frequency: 532.9 Hz @ 50 m/s (112 mph)
Amplitude: Equal to supply voltage, max. 15 V 		Form: Square Wave
Frequency: 532.9 Hz @ 50 m/s (112 mph)
Amplitude: Equal to supply voltage, max. 15 V 		Form: Square Wave
Frequency: 532.9 Hz @ 50 m/s (112 mph)
Amplitude: Equal to supply voltage, max. 15 V
Linearity Refer to R^2 value on individual calibration report. Refer to R^2 value on individual calibration report. Refer to R^2 value on individual calibration report. Refer to R^2 value on individual calibration report.
Anemometer Transfer Function
  • Refer to individual calibration report for anemometer transfer function.
  • All NRG S1 anemometers are calibrated per IEC 61400-12-1, Annex F.
  • Refer to individual calibration report for anemometer transfer function.
  • All NRG S1 anemometers are calibrated per IEC 61400-12-1, Annex F.
  • Refer to individual calibration report for anemometer transfer function.
  • All NRG S1 anemometers are calibrated per IEC 61400-12-1, Annex F.
  • Refer to individual calibration report for anemometer transfer function.
  • All NRG S1 anemometers are calibrated per IEC 61400-12-1, Annex F.
Calibration Each anemometer individually calibrated at SOH WE, Williston, VT USA.
Calibration reports provided via electronic download. 		Each anemometer individually calibrated at DWG, Varel, DE.
Calibration reports provided via electronic download. 		Each anemometer individually calibrated at SOH WE, Williston, VT USA.
Calibration reports provided via electronic download. 		Each anemometer individually calibrated at DWG, Varel, DE.
Calibration reports provided via electronic download.
Output signal range 0 Hz to 800 Hz 0 Hz to 800 Hz 0 Hz to 800 Hz 0 Hz to 800 Hz
Resolution 0.046 m/s 0.046 m/s 0.046 m/s 0.046 m/s
Uncertainty IEC 61400-12-1 Ed. 1 Classification
  • Class 1.2A
  • Class 3.9B
    Refer to individual calibration sheet for information on calibration uncertainty.
    Contact NRG Sales for Ed. 2 classification indices.
 IEC 61400-12-1 Ed. 1 Classification
  • Class 1.2A
  • Class 3.9B
    Refer to individual calibration sheet for information on calibration uncertainty.
    Contact NRG Sales for Ed. 2 classification indices.
 IEC 61400-12-1 Ed. 1 Classification
  • Class 1.2A
  • Class 3.9B
    Refer to individual calibration sheet for information on calibration uncertainty.
    Contact NRG Sales for Ed. 2 classification indices.
 IEC 61400-12-1 Ed. 1 Classification
  • Class 1.2A
  • Class 3.9B
    Refer to individual calibration sheet for information on calibration uncertainty.
    Contact NRG Sales for Ed. 2 classification indices.
Response characteristics  
Threshold 0.638 m/s (1.427 mph) per ASTM D 5096-02 0.638 m/s (1.427 mph) per ASTM D 5096-02 0.638 m/s (1.427 mph) per ASTM D 5096-02 0.638 m/s (1.427 mph) per ASTM D 5096-02
Distance constant (63% recovery) 2.76 m (9.05 ft) per ASTM D 5096-02 2.76 m (9.05 ft) per ASTM D 5096-02 2.76 m (9.05 ft) per ASTM D 5096-02 2.76 m (9.05 ft) per ASTM D 5096-02
Moment of inertia
  • 1.01 x 10-4 kg-m2
  • 74.5 x 10-6 S-ft2
  • 1.01 x 10-4 kg-m2
  • 74.5 x 10-6 S-ft2
  • 1.01 x 10-4 kg-m2
  • 74.5 x 10-6 S-ft2
  • 1.01 x 10-4 kg-m2
  • 74.5 x 10-6 S-ft2
Power requirements  
Supply voltage 5 to 28 VDC 5 to 28 VDC 5 to 28 VDC 5 to 28 VDC
Supply current
  • 1.1 mA at 12V
  • 1.65 mA at 12V max
  • 1.1 mA at 12V
  • 1.65 mA at 12V max
  • 1.1 mA at 12V
  • 1.65 mA at 12V max
  • 1.1 mA at 12V
  • 1.65 mA at 12V max
Installation  
Mounting Onto a 25 mm (1") diameter mast with 2 set screws Onto a 25 mm (1") diameter mast with 2 set screws Onto a 25 mm (1") diameter mast with 2 set screws Onto a 25 mm (1") diameter mast with 2 set screws
Tools required 2.5 mm Allen Key 2.5 mm Allen Key 2.5 mm Allen Key 2.5 mm Allen Key
Environmental  
Operating temperature range -30 °C to 60 °C (-22 °F to 140 °F) -30 °C to 60 °C (-22 °F to 140 °F) -30 °C to 60 °C (-22 °F to 140 °F) -30 °C to 60 °C (-22 °F to 140 °F)
Operating humidity range 0 to 100% RH 0 to 100% RH 0 to 100% RH 0 to 100% RH
Lifespan > 2 years at most sites > 2 years at most sites > 2 years at most sites > 2 years at most sites
Other
  • IP55 Rated
  • IP55 Rated
  • IP55 Rated
  • IP55 Rated
Physical  
Connections M12 Connector M12 Connector M12 Connector M12 Connector
Cable length Various available Various available Various available Various available
Weight Sensor weight = 190 grams (0.42 lbs) Sensor weight = 190 grams (0.42 lbs) Sensor weight = 190 grams (0.42 lbs) Sensor weight = 190 grams (0.42 lbs)
Dimensions
  • 3 cups of conical cross-section, 51 mm (2") dia.
  • 203 mm (8") overall assembly height
  • 3 cups of conical cross-section, 51 mm (2") dia.
  • 203 mm (8") overall assembly height
  • 3 cups of conical cross-section, 51 mm (2") dia.
  • 203 mm (8") overall assembly height
  • 3 cups of conical cross-section, 51 mm (2") dia.
  • 203 mm (8") overall assembly height
Materials  
Cups One piece injection-molded black polycarbonate One piece injection-molded black polycarbonate One piece injection-molded black polycarbonate One piece injection-molded black polycarbonate
Body Anodized Aluminium Anodized Aluminium Anodized Aluminium Anodized Aluminium
Shaft Stainless Steel Stainless Steel Stainless Steel Stainless Steel
Bearing Ball Bearings Ball Bearings Ball Bearings Ball Bearings
Signal generator Optical Switch Optical Switch Optical Switch Optical Switch

NRG Systems • 110 Riggs Road • Hinesburg, Vermont 05461 • +1 802-482-2255 • info@nrgsystems.com