Young Serial Output Wind Monitor Model 09101 - Manual (Page 2)

Page 1
09101-90(G)
MODEL 09101
WIND MONITOR - SE
INTRODUCTION
The Wind Monitor-SE combines the performance and durability of the
standard Wind Monitor with an optically encoded direction transducer
and serial data output capability.
The wind speed sensor is a four blade helicoid propeller that turns a
multipole magnet. Propeller rotation induces a variable frequency signal
in a stationary coil. Slip rings and brushes are not used.
The wind direction sensor is a durable molded vane. An optical encoder
measures vane angle, thereby eliminating the characteristic deadband
and wear of potentiometer transducers. The encoder is an absolute type
so direction output remains accurate even if power is interrupted.
Raw transducer signals are processed by onboard electronics. A variety
of serial protocols or a conventional calibrated voltage output may be
selected with simple internal jumpers.
The Wind Monitor-SE is designed for superior environmental resistance.
Housing parts are UV stabilized thermoplastic. Fittings are stainless
steel and anodized aluminum. Precision grade stainless steel ball
bearings are used throughout. The instrument mounts on standard 1
inch pipe.
INITIAL CHECKOUT
Remove the sensor from its shipping carton. Remove the plastic nut
from the propeller shaft and install the propeller with the teeth on the
propeller hub engaging the slots on the shaft hub. Tighten plastic
propeller nut finger-tight only. Do not overtighten.
The instrument is fully balanced, aligned, and calibrated before
shipment. Some simple checks can be made to verify proper function.
Both vane and propeller should rotate easily without friction. Check
vane balance by holding sensor with vane surface horizontal. The vane
should have no tendency to rotate. A slight imbalance will not degrade
performance.
INITIAL SETUP
The 09101 has been calibrated at the factory and requires no additional
adjustments. Operation is configured by onboard jumpers and software
commands.
Unless otherwise specified, the sensor is supplied with the following
settings:
Continuous Serial Output
RMY Protocol
9600 Baud
Meters per Second
Other settings are easily selected by changing the jumper pattern.
Refer to the wiring diagram for jumper J1 and J3 locations. The
following table lists available features and position of each jumper.
Important Note:
Jumper settings are read at power-up only. If jumpers are changed,
remove and reapply power for the new settings to be used.
At first power-up the Wind Monitor-SE has a 3 second delay before
outputting the first wind speed value.
WIND SPEED SPECIFICATION SUMMARY
Range 0 to 100 m/s (224 mph)
Resolution: 0.1 unit
Accuracy: ±0.3 m/s (0.6 mph) or 1% of reading
Threshold: 1.0 m/s (2.2 mph)
Distance constant: 2.7 m (8.9 ft)
Transducer: Rotating magnet and stationary coil.
WIND DIRECTION (AZIMUTH) SPECIFICATION SUMMARY
Range: 0-360 degrees
Accuracy: ± 2 degrees
Resolution: 1 degree
Threshold: 1.1 m/s (2.5 mph) @ 10° displacement
Delay distance: 1.3 m (4.3 ft)
Damping ratio: 0.3
Transducer: Absolute encoder
GENERAL
Power requirement: 11-24 VDC, 20 mA
Dimensions: Overall height 37 cm
Overall length 55 cm
Propeller 18 cm diameter
Mounting 34 mm (1.34 in) diameter
(standard 1 inch pipe)
Weight: Sensor weight 1.0 kg (2.2 lb)
Shipping weight 2.3 kg (5.0 lb)
Voltage Output: WS: 0-5 VDC for 0-100 m/s
WD: 0-5 VDC for 0-540°
Serial RS-485: 2 wire-half duplex, 1200-9600 Baud
RMY, NCAR, NMEA, or RMYT protocols
Polled or continuous
Operating Temperature: -50 to 50°C (-58 to 122°F)