WS150 User Manual
12
5.1 Backlighting On / Off
Simultaneously press the
and
keys to turn
the backlight on. Repeat this procedure to turn the
lighting off.
5 Operation
2
Press the
or
keys to change the
displayed wind direction.
3
To exit, press the
key.
4.6.3 Wind Speed Calibration
The WS150 wind speed transducer is factory
calibrated to read the correct wind speed under
normal conditions. If necessary the user is able to
make adjustments to the wind speed reading.
1
Follow the Calibration Chart until you reach
the Wind Speed Calibration mode.
2
To increase reading press the
key.
3
To decrease reading press the
key.
4
Each key press results in a 5% change. It
may take 2 or 3 key presses before a change
to the speed can be observed.
5
To exit press the
key.
Note: If there is any doubt about the accuracy
of the display wind direction, repeat the
linearization & alignment calibration
procedures.
4.6.4 Wind Direction Damping
This setting controls the rate the displayed wind
angle changes. There are four levels of damping:
d0, d1, d2 and d3. The most heavily-dampened
setting is d3 and d0 for no damping. The WS150 is
factory-set for a damping of d2.
To change the damping setting, perform the following:
1
Follow the Calibration chart to enter the Wind
Direction Damping mode.
2
To increase reading press the
key.
3
To decrease reading press the
key.
4
To exit press the
key.
4.7 Microprocessor Reset.
When the instrument is not functioning properly, the
microprocessor can be reset as follows:
1
Turn off the instrument power.
2
Press the
and
keys and turn the
power back on. Continue to press and hold
the keys for 7 seconds after the power is
turned back on.
3
All Calibration settings will be reset to factory-
set defaults.
5.2 Wind Speed Alarm On/Off
Press the
key to switch the alarm on and off.