WatchDog 525 Operation Manual - Anemometer Setup (Cont.)
4
Calibrating the Wind Vane
When the weather station is initially placed in the field or moved, the
wind direction must be calibrated. The following procedure will
allow you to establish accurate wind direction readings.
1. Turn on the display by pressing the Display button and press the
arrow keys until the wind information is displayed.
2. Rotate the wind vane until it is pointing north.
3. Press and hold the reset button until you hear a steady stream of
beeps. The anemometer is now calibrated.
If you are using external sensors, the sensor wires should be run
through the bottom of the enclosure by slotting
the wires
inside
the
notched plastic cap. Plug the sensor cables into the logger port that
has been programmed to read that sensor.
Refer to the SpecWare Software User’s Guide for more detailed
instructions on launching and sensor configuration.
Anemometer setup (cont.)
Important: Secure the external sensor wires to the mounting pole
with a plastic tie. This will ensure that the sensor wires do not
become disconnected while recording.
LCD Display Panel
The digital LCD screen displays on-site readings and calculated pa-
rameters such as evapotranspiration (900ET station), dewpoint
(900ET, 700 and 550 stations) and wind chill
.
The LCD display is
only active after the weather station is launched and is logging data.
View the LCD to confirm that the logger is working and to observe
current weather conditions. The screen will automatically go dormant
after 15 minutes. The display can then be turned on or off by pressing
the
Display key.
Sensor readings are updated every 20 seconds. If “sensor error”
appears on the display, the external sensor is not connected properly
or is not functioning properly. Use the arrow keys to scroll forward or
backward through current readings. The scrolling function is tempo-
rarily suspended while readings are being updated.
When the station’s logger measurement capacity is reached, the LCD
will display “Memory full”. A full logger needs to be downloaded
and relaunched before it can collect more data.