User's Guide ______________________________________________________________________
126 _________________________________________________________________ M210455EN-B
Heated Ultrasonic Wind Sensor
WS425
Table 50 WS425 Specifications
Property Description/Value
Sensor type Ultrasonic 100 kHz
Fully compensated for temperature, humidity,
and altitude.
Measuring range 0 ... 56 m/s (0 ... 125 mph, 0 ... 107 knots)
0 … 130 m/s (survival)
Delay distance Virtually zero
Starting threshold Virtually zero
Response
characteristics
Maximum reading rate: 1 per second
Sonic measurement time: 0.2 second
Signal processing time: 0.15 second
Response time: 0.35 second
Accuracy (wind speed)
±0.135 m/s (0.3 mph, 0.26 knots) or 3 % of
reading, whichever is greater
Accuracy (wind direction)
±2 degrees
Resolution (wind speed) 0.1 m/s (0.1 mph, 0.1 knots, 0.1 km/h)
Resolution (wind direction) 1 degree
Power (operating) 10 ... 15 VDC, 12 mA (analog)
Power (heating)
36 VDC ± 10 %, 0.7 A
Heater Thermostatically controlled heaters in the
transducer heads prevent freezing rain or
snow build up.
Output (analog wind
speed)
10 Hz/0.894 m/s (0 ... 625 Hz at 0 ... 55.88
m/s) (frequency)
10 mV/0.558 (0 ... 1.0 volt at 0 ... 55.88 m/s)
(voltage)
Output (analog wind
direction)
(0 to V
ref
at 0 to 359°) (simulated
potentiometer)
1.0 ... 4.0 VDC, for 5.0 VDC reference an
additional -2° error occurs for angles greater
than 291° (reference voltage)
Available averages 1 ... 9 seconds (RS-232)
Dead band (wind direction) None
Material Stainless steel body and sensor arms
Silicone rubber and PVC transducer heads
Operating temperature
-50 ... +50 °C (-58 ... -122 °F)
Dimensions w × d × h 250 × 286 × 355 mm (9.8 × 11.2 × 13.9 in)
Weight 1.7 kg (3.7 lb)
Mean time between failure
(MTBF)
26 years calculated per the standard
assumptions of
MIL-HDBK-217, Revision E.
EMC compliance EMC standard EN61326-1:1997 + Am1: 1998;
Generic Environment
To Next Page
Loading...
