Orion Car Audio 420 - Manual (Page 43)

Orion 420 Weather Station 43
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Columbia Weather Systems, Inc.
SECTION 6: MAINTENANCE
This chapter contains instructions for the basic maintenance of the
sensor transmitter.
Cleaning
To ensure the accuracy of measurement results, the sensor transmitter
should be cleaned when it becomes contaminated. Leaves and other
such particles should be removed from the precipitation sensor and the
transmitter should be cleaned carefully with a soft, lint-free cloth
moistened with mild detergent.
Replacing the PTU Module
Note: Avoid contacting the white filter cap with your hands. Handle the
PTU module from the plastic connector base (5).
1. Disconnect Orion sensor connector from cable and remove from
mounting adapter.
2. Loosen the three screws at the bottom of sensor and slide out
completely as shown below.