KPC-2000 Wind Speed/Direction Monitoring System
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OVERVIEW

The KPC-2000 system uses an RS-422 digital signal from a wind speed and direction sensor output to a personal computer to display wind speed and direction information and generate daily and monthly charts. The KPC-2000 system also allows for the setting of two separate wind speed alerts, which notify a user with both visual and audio cues when wind speed exceeds the alert settings.

SPECIFICATIONS

Wind speed/direction sensor
Model	Brushless encoder
Speed sensor	Propeller: optical pulse-type (60 pulses/rev)
Direction sensor	Vane: rotary encoder (8-bit)
Digital output	RS-422
Startup threshold	Low-speed sensor: less than 0.4 m/s
	High-speed sensor: less than 2 m/s
Weatherability	Winds of 90 m/s or greater
Accuracy
Speed	High-speed: ±0.5 m/s @ winds of 10 m/s or less; ±5% @ winds greater than 10 m/s
	Low-speed: ±0.3 m/s @ winds of 5 m/s or less; ±5% @ winds greater than 5 m/s
Direction	±5°
Power source	12 V DC (10 to 13.5 V), 250 mA or less
Usage conditions	-10 to 50°C
Connector	12-pole waterproof, cord diameter 8.5-10.5
Materials
Propeller	Polycarbonate resin
Body	Polycarbonate resin
Vane	FRP (glass fiber-reinforced polyester resin)
Paint	Munsell color 8YR 7.3/1.3
Inspections	In-house or Japan Meteorological Agency
Transducer
	The transducer provides power to the sensor and converts the RS-422 signal to an RS-232C signal.
Input signal	RS-422
Output signal	RS-232C
Power output	12 V DC (supplied to the sensor)
Power source	100 V AC 10VA