Sutron Corporation X-Link Operations & Maintenance Manual, Rev 1.63 5/24/2016 pg. 100
8.
Measurement Setup Examples
8.1.
RM Young Wind Speed and Direction
This section describes how to connect the sensor and how to set up X-Link in
order to measure wind speed and direction. The sensor used is an RM Young
05103-11 which has a four-blade propeller for speed and a vane for direction.
The sensor provides a square wave signal for wind speed and uses a
potentiometer for wind direction.
This device provides wind speed via a frequency output and direction via an
analog output. To wire it up, connect like so:
RM Young Output
X-Link input
AZ SIG
Analog 0-5V (either A or B)
WS SIG
WS/DIG IN1
REF
AGND
+V SUPPLY
+SW POWER
AX EXC
VREF
A 1.0 MOhm resistor needs to be placed from VREF (or AGND) to AZ SIG. This
ensures that the value always goes to 355 (or 0 with AGND) when the
potentiometer is in the open region.
This X-Link setup will measure wind data from the RM Young:
Wind Speed Setup
Value
M1 Active
On
Label
WNDSPD
Meas Type
Wind
Wind Type
Wind Speed Freq
Warmup
1 sec
Averaging Time
00:00:10
Sampling Interval
1.0 sec
Slope
Depends on desired units
– see below
Wind Speed Units
Slope
m/s
0.098
knots
0.1904
mph
0.2194
kph (km/h)
0.3528
Wind Direction Setup
Value
M2 Active
On
Label
WNDDIR
Meas Type
Wind
