User manual

72 Capricorn 2000EX Weather Station
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Columbia Weather Systems, Inc.
Wind Direction Test
1. Set the multi meter set to volts DC.
2. Measure the voltage between terminal #25 and #26. Place the
black probe on terminal #26 and the red probe on terminal #25.
The voltage should be 5.0 volts DC. If the voltage is different, the
wind direction channel is defective and the Control Module
should be returned to the factory for repair.
3. With the Control Module powered On and the wind sensor
connected, place the back probe on terminal #26 and the red
probe on terminal #27.
4. As the wind vane rotates, the voltage reading will vary from 0 to
5 volts DC. If the vane is pointing south, the voltage reading
should be 2.5 volts.
5. If the voltage reading is not changing when the vane is rotating
or if the value is out of the normal range (0 to 5.0 volts DC) the
wind sensor is defective and should be returned to the factory for
repair.
Note: Please follow the procedure on page 76 for returning any
defective items to the factory.
Temperature Sensor Troubleshooting
If the Temperature sensor is reading a few degrees off when compared
to a standard, the Temperature sensor may require re-calibration. Please
refer to calibration procedure in Section 6: Calibrating the Temperature
Sensor.
If the Temperature sensor is reading 255°F, the Temperature sensor
may be disconnected from the Control Module, may not be initialized, or
may be defective.
Check the cable from the sensor to the Control Module for any cuts or
kinks. Check any splices to ensure good connection. Check the cable
connection to the Control Module.
The initialization procedure should be performed when replacing or
adding a sensor or when a sensor has lost its initialization to the Control
Module and is reading 255°F.