Vaisala WS425FG - Manual (Page 88)

User's Guide ______________________________________________________________________
86 ______________________________________________________________________________
Field Replaceable Units
Specifications
Table 6 Field Replaceable Units of Ultrasonic Wind Sensor
WS425 F/G
Item Name Order Code
US 60 Hz wind sensor, model
WS425 F/G (with adapter) WS425G7A4A
EU 50 Hz wind sensor, model
WS425 F/G (without adapter) WS425F7A1A
115 VAC power supply, WS425 F/G WS425PowerUS
240 VAC power supply, WS425 F/G WS425PowerEU
Module assembly, power supply
WS425 F/G 4257023
Fiber optic modem FOM111
Cable assembly, sensor WS425 F/G 4253100
Installation kit for ASOS, WS425 F/G 4257100
Field verifier assembly, WS425 F/G
WS425VerifierB
Table 7 Wind Speed
Property Description / Value
Measurement range 0 ... 165 knots
Starting threshold virtually zero
Delay distance virtually zero
Resolution 0.1 knots
Accuracy (range 0 ... 125 knots) ±0.26 knots or 3 % of reading,
whichever is greater
Table 8 Wind Direction
Property Description / Value
Measurement range 0 ... 360°
Starting threshold virtually zero
Delay distance virtually zero
Resolution 1°
Accuracy
(wind speed 2 ... 125 knots) ±2°