NRG Systems

Boom Extensions

Extend and retrofit NRG booms to meet your project’s needs with our boom extensions and adapter kits.

  for 40C, 200P, NRG Class 1, 200M, 26.7D (#9342) for WindSensor, 20D (#9165) for 40C, 200P, NRG Class 1, 15D (#5815) for WindSensor, 15D (#4475) fits 25 mm (0.98") dia. Pipe (#9344) 16" Stub Mast (#1941) 13" Z Mast (#1942)
Description  
Boom type n/a n/a Boom extension Boom extension Collar adapter straight stub mast for mounting standard NRG sensors offset boom for mounting standard NRG sensors
Applications n/a n/a For mounting NRG sensors onto 2.4m (95") NRG side mount booms For mounting WindSensor P2546-OPR or Thies First Class Advanced Anemometers onto 2.4 m (95") NRG side mount booms Mounting Thies First Class Anemometer onto vertical pipe masts with 25 mm (0.984") outer diameter wind resource assessment; for mounting one NRG #40 Anemometer or one NRG #200P Wind Direction Vane wind resource assessment; for mounting one NRG #40 Anemometer or one NRG #200P Wind Direction Vane
Sensor compatibility n/a n/a
  • NRG 40C Anemometer
  • NRG Class 1 Anemometer
  • 200PWind Direction Vane
  • WindSensor P2546-OPR Anemometer
  • Thies First Class Advanced Anemometer (must use one Thies Adapter, #9344)
 Thies First Class Advanced Anemometer
  • NRG #40 Anemometer
  • NRG #200P Wind Direction Vane
  • NRG #40 Anemometer
  • NRG #200P Wind Direction Vane
Tower compatibility n/a n/a Any NRG TallTower with 2.4m (95") NRG side mount booms (#4214 or #4159) Any NRG TallTower with 2.4 m (95") NRG booms (#4214) Any Tubular or Lattice tower that has booms with 25 mm (.984") diameter vertical pipe, such as NRG boom #4478 or any boom already fitted with a WindSensor Adapter Kit. any vertical mast up to 203 mm (8 inches) diameter any vertical mast up to 203 mm (8 inches) diameter
Installation  
Mounting n/a n/a Retrofits existing 2.4m (95") NRG side mount booms to enable mounting of NRG sensors Retrofits existing 95" NRG tubular boom (#4214) to enable first class anemometer mounting Can be used to retrofit any boom with 25 mm (.984") diameter vertical pipe, such as NRG boom #4478 or any boom already fitted with a WindSensor Adapter Kit.
  • stub clamps to tower or boom with supplied hose clamps
  • sensor mounts to boom with set screw and cotter pin
  • stub clamps to tower or boom with supplied hose clamps
  • sensor mounts to boom with set screw and cotter pin
Tools required n/a n/a 5/16" hex socket bit for drill, 3/8" open end wrench or socket driver, tape measure 5/16" hex socket bit for drill, 3/8" open end wrench or socket driver, tape measure 3 mm allen wrench
  • 5/16 inch hex driver or flat blade (-) screwdriver for hose clamps
  • Phillips head (+) screwdriver to mount sensor
  • 5/16 inch hex driver or flat blade (-) screwdriver for hose clamps
  • Phillips head (+) screwdriver to mount sensor
Recommended for installation n/a n/a Battery operated drill with clutch Battery operated drill with clutch n/a
  • electric drill for tightening hose clamps
  • sheet metal shears or similar for trimming hose clamps
  • electric drill for tightening hose clamps
  • sheet metal shears or similar for trimming hose clamps
Environmental  
Lifespan n/a n/a 2 years + n/a n/a 2 years + 2 years +
Physical  
Weight n/a n/a n/a n/a n/a 0.18 kg (0.4 pounds) 0.23 kg (0.5 pounds)
Overall boom length n/a n/a n/a n/a N/A. No vertical rise or boom extension. 406 mm (16") 343 mm (13.5 inches)
Boom diameter n/a n/a n/a n/a n/a 13 mm (0.5 inches) 13 mm (0.5 inches)
Offset distance n/a n/a n/a n/a n/a n/a Adds 330 mm (13") to the Offset Distance of the attached boom
Offset height n/a n/a 40C cup height above horizontal boom arm:
38.1cm (15.0")

200P wing height above horizontal boom arm:
39.4cm (15.5") 		WindSensor cup height above horizontal boom arm:
38.1cm (15.0")

Thies cup height above horizontal boom arm:
38.6cm (15.2") 		None Adds 362 mm (14.25") to the Offset Height of the attached boom Adds 114 mm (4.5") to the Offset Height of the attached boom
Rod diameter n/a n/a n/a 3/4" tubing N/A n/a n/a
Materials  
Boom n/a n/a Galvanized steel tubing Galvanized steel tubing Aluminum 13 mm (0.5 inch) galvanized steel tube 13 mm (0.5 inch) galvanized steel tube

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