Data logger for wind resource assessment

Abstract

Second Wind has released further information on its NOMAD 2 data logger that offers advanced functionality and simplified installation while reducing system costs. Using advanced low-power circuitry, real-time operating system, and Windows◐-compatible Compact Flash Cards, NOMAD 2 collects and secures wind resource data. A vacuum fluorescent display (VFD) option gives a clear bright readout in temperatures down to-40°C and in full sunshine. The LED “heartbeat” provides assurance of normal operation independent of the display. The integrated shelter box design uses innovative mini-rack mounting for power and communications components, so installations are easy to maintain. Field-proven lightning protection circuitry is built in, reducing the number of connections to wire. Larger, colour-coded cage-clamp terminals make wiring faster and easier, even with gloves on. A built-in serial port allows the use of the NOMAD Desktop on site or if the user does not have a laptop the front panel and menuing system provides all required information. Internal 12V batteries allow the unit to run longer, even with transducers and remote communications gear. The NOMAD 2 manages transducer power and sensor excitation to get the most out of the batteries used. A solar package can also be added for perpetual operation and a built-in relay provides added control, including sensor heating for icing conditions. It is possible to connect up to 12 anemometers or other frequency or state devices to the NOMAD 2, including rain gauges, energy meters, and relays. Another 8 analog inputs connect directly to wind vanes, thermistors, and transducers measuring air pressure, electric power, sound level, or anything else that concerns the user at their wind site. This is a short news story only. Visit www.re-focus.net for the latest renewable energy news.