#40C
#40C
OrderableMaximum Wind Speed Sensor
Overview
NRG's #40C is a MEASNET-calibrated anemometer primarily intended for wind prospecting applications. A four-pole magnet induces a sine wave voltage into a coil producing an output signal with frequency proportional to wind speed. This signal is measured by our data loggers. The #40C is constructed of Lexan. A rubber terminal boot is included. In February 2008, the #40C replaced the #40 anemometer.
Specifications
- Measurement Description
- Wind speed
- Signal Type/Output
- Low-level ac sine wave
(pulse)
- Operating Temperature Range
- -55° to +60°C
- Operating Relative Humidity
- 0 to 100% RH
- Starting Threshold
- 0.78 m/s
(1.75 mph)
- Range
- 1 to 96 m s-1
- Cup Distance Constant
- 3.0 m
(10 ft) 63% recovery
- Cup Diameter
- 5.1 cm
(2 in.)
- Swept Diameter of Rotor
- 19.0 cm
(7.5 in.)
- Overall Assembly Height
- 5.1 cm
(3.2 in.)
- Weight
- 0.1 kg
(0.2 lb)
Common Accessories
(3)#40CCBL
#40C Sensor Cable
The #40CCBL connects the #40C anemometer to a datalogger. It consists of a 22 AWG cable with a Santoprene jacket and a connector. Cable length is user specified.
Orderable21210
Wind Sensor Mount for #40C or 200P
The 21210 fits in the base of the sensor, and then attaches to a tripod or tower via the CM220 Right Angle Mount or 1049 NU-RAIL Crossover Fitting.
Orderable1049
3/4 x 1 in. Nu-Rail Crossover Fitting
The 1049 NU-RAIL® Crossover Fitting is an alternative to the CM220 to attach the 21210 to a tripod or tower mast.
Orderable
Compatibility
Data Logger Considerations
The #40C is measured by the PulseCount instruction in CRBasic and by Instruction 3 (Pulse Count) in Edlog. The #40C uses one pulse count channel on the data logger.