NRG Systems

Hybrid MC Anemometer

Reliably measure wind speed for turbine control in moderate climates.

  Push-Pull Output (#9380) 4-20mA Output 0-50m/s (#9379)
Description  
Sensor type 3 Cup Wind Turbine Control Anemometer 3 Cup Wind Turbine Control Anemometer
Applications Wind Turbine Control Wind Turbine Control
Sensor range
  • Measuring range 0 to 60 m/s (133 mph)
  • Maximum speed 70 m/s (156 mph)
  • Measuring range 0 to 50 m/s (112 mph)
  • Maximum speed 70 m/s (156 mph)
Instrument compatibility
  • Digital inputs of turbine controllers
  • PLCs
  • 4-20 mA current loop inputs of wind turbine controllers
  • PLCs
  • Other instruments compatible with a 4-20mA input
Sensor compatibility
  • Direct replacement for IceFree 3 anemometers
n/a
Certifications CE Marked CE Marked
Output signal  
Signal type
  • High level square wave frequency
  • Push/Pull (compatible with NPN or PNP inputs)
  • Amplitude equals supply voltage
Current loop, 4 to 20mA, sourced by the sensor
Anemometer Transfer Function Wind speed is 0.509 m/s per Hz + 0.4 m/s
  • 4 to 20 mA corresponds to 0 m/s to 50 m/s
  • output 20 mA for > 50 m/s
Accuracy +/- (0.3 m/s + 2% of measured value) +/- (0.3 m/s + 2% of measured value)
Sensor to Sensor Variation 99.7% of sensors fall within 2% of the specified slope 99.7% of sensors fall within 2% of the specified slope
Recommended load resistance 1200 Ω minimum 50Ω to 1000Ω(depending on power supply)
Calibration Available upon request n/a
Output signal range n/a 4 to 20 mA
Resolution Frequency output, resolution dependent on controller 0.1 m/s, guaranteed monotonic
Response characteristics  
Threshold 1.27 m/s (2.84 mph) 1.27 m/s (2.84 mph)
Distance constant (63% recovery) 2.64 m (8.66 ft.) 2.64 m (8.66 ft.)
Swept diameter of rotor 172 mm (6.8") 172 mm (6.8")
Power requirements  
Supply voltage 8 to 24 V DC 11 to 24 V DC
Supply current
  • 25 mA max plus signal output current (not including heater)
15 mA max, plus output signal currents.
Heater supply voltage 24 V, AC or DC 24 V, AC or DC
Heater supply current
  • Self regulating
  • 0.5 to 1 A, thermal load dependent
  • Self regulating
  • 0.5 to 1 A, thermal load dependent
Installation  
Mounting Sensor housing compatible with:
  • 25 mm pipe per BS1387, or
  • 32 mm tube, or
  • 1 inch IPS pipe, or
  • 1-1/4 inch tube
    Quick disconnect allows for easy mounting or dismounting
    captive M6 clamp bolt, nut, and connector
Sensor housing compatible with:
  • 25 mm pipe per BS1387, or
  • 32 mm tube, or
  • 1 inch IPS pipe, or
  • 1-1/4 inch tube
    Quick disconnect allows for easy mounting or dismounting
    captive M6 clamp bolt, nut, and connector
Tools required 10 mm wrench 10 mm wrench
Accessories
  • Pre-wired cable assembly (not included)
  • Pre-wired cable assembly (not included)
Wiring Sensor plugs onto captive connector - see manual for wiring details Sensor plugs onto captive connector - see manual for wiring details
Environmental  
Operating temperature range -40 ° C to 50 ° C ( -40 ° F to 122 ° F) Ambient -40 ° C to 60 ° C (-40 ° F to 140 ° F)
Operating humidity range 0 to 100% RH 0 to 100% RH
Other
  • IP55 per IEC 60529 and DIN40050-9 (Ingress Protection)
  • MIL-STD-810F Method 509.4 (96 Hour Salt Fog Corrosion)
  • IEC 60068-2-52, Severity 1 (28 Day Salt Fog Corrosion)
  • IEC60068-2-38 Z/AD (Cyclic Humidity & Temperature)
  • IEC 60068-2-78 (Constant Humidity)
  • IEC 60068-2-6, Test Fc (Sinusoidal Vibration)
  • IEC 60068-2-64, Test Fh (Random Vibration)
  • packaging meets ISTA 1A (Drop Test)
  • IP55 per IEC 60529 and DIN40050-9 (Ingress Protection)
  • MIL-STD-810F Method 509.4 (96 Hour Salt Fog Corrosion)
  • IEC 60068-2-52, Severity 1 (28 Day Salt Fog Corrosion)
  • IEC60068-2-38 Z/AD (Cyclic Humidity & Temperature)
  • IEC 60068-2-78 (Constant Humidity)
  • IEC 60068-2-6, Test Fc (Sinusoidal Vibration)
  • IEC 60068-2-64, Test Fh (Random Vibration)
  • packaging meets ISTA 1A (Drop Test)
Physical  
Connections
  • Quick release connector mount
  • Two heater wires
  • Three sensor wires: power, common, signal
  • Quick release connector mount
  • Two heater wires
  • Three sensor wires: power, common, signal
Weight 1.36 kg (2.99 lbs) 1.36 kg (2.99 lbs)
Dimensions
  • Overall height: 241 mm (9.5 ")
  • Swept diameter of rotor: 172 mm (6.8 ")
  • Body diameter: 58 mm (2.3 inches)
  • Overall height: 241 mm (9.5 ")
  • Swept diameter of rotor: 172 mm (6.8 ")
  • Body diameter: 58 mm (2.3 ")
Materials  
Cups Black Polycarbonate Black Polycarbonate
Body Zinc Zinc
Shaft Stainless Steel Stainless Steel
Bearing Double-shielded stainless steel ball bearings in a protective cartridge Double-shielded stainless steel ball bearings in a protective cartridge

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