Overview
The 40 is one of the first anemometers designed exclusively
for the wind industry, and offers field-proven measurement
accuracy at an economical price.
NRG 40 ANEMOMETER
TECHNICAL PRODUCT SHEET
Measurement Range 1 – 96 m/s (2.2 – 215 mph)
Signal Type Low level AC sine wave,
frequency linearly
proportional to wind speed
Transfer Function Default Slope: 0.765 m/s
per Hz
Default Offset: 0.35 m/s
Output Signal 0 Hz to 125 Hz
Supply Voltage None needed
Supply Current N/A
Sensor Cable 2 conductor (2C), 20 AWG,
Shielded
Mounting 13mm (0.5”) diameter
mast
Specifications
Tools Required
#2 Phillips Screwdriver
1/4” Nut Driver
Electrical Tape
Small NRG Screw Driver
9/16” Wrench
5/16” Nut Driver
07_2020_V1
SymphoniePRO Logger Programming
Use the SymphoniePRO Desktop Application to program the sensor
settings into the data logger:
1. Enter serial number
2. Enter height of anemometer cups
3. Enter direction the boom is pointing (Boom Bearing) in degrees
4. Enter the unique Scale Factor and Offset if the sensor has been
calibrated in a wind tunnel.
1
5
6
7
3
4
2
Set
Screw
Cotter
Pin
40 Anemometer Installation Process
1. Install the 1.53m mounting boom according to the diagram. Use 9/16” wrench and socket to secure brackets
to boom. Feed hose clamps through each bracket hole. Use 5/16” nut driver bit to secure boom to tower.
2. Place the sensor boot on the end of the mounting boom and run the cable through it.
3. Wire the two conductor (2C) sensor cable to the wind vane terminals. Use 1/4” nut driver to tighten nuts.
4. Secure the sensor to the boom by inserting the cotter pin and tightening the set screw with a Phillips
screw driver.
5. Wrap and/or secure the cable along the boom and down the tower to the data logger.
6. Wire the sensor cable into the data logger wiring panel.
7. Program SymphoniePRO Logger.