La Crosse Technology WS 550 US Operating Instructions Manual

La Crosse Technology WS 550 US Operating Instructions Manual Manual pdf 34 page image

346. RangeThe free-field range for visual contact between transmitter and receiver is 400 ft.(120 m) under optimal conditions. Walls and even steel concrete structures may bepenetrated; however, the range is then reduced accordingly. Reduced range canbe caused by the following:· High frequency disturbances of all types· All types of structures or vegetation· The distance between the sensor and the receiver to the conducting areas orobjects (and even to the human body or the earth) has an effect on the transmis-sion properties and in turn the range.· Broadband disruptions in city areas can reach levels that reduce the signal-noisedistance in the entire frequency range and in turn reduce the range.· Devices with adjoining working frequencies can also have an effect on the re-ceiver.· PCs with poor shielding can interfere with the receiver and reduce the range.7. Instructions for Maintenance and Care- Protect the base station against dust and moisture. Never clean it with chemicaldetergents; just use a soft dry piece of linen. Do not put any pressure on thedisplay.- The outdoor sensor is to be cleaned from time to time to remove the dirt and dustthat has settled on it. Check easy accessibility of the wind sensors and ensurethat the sensors are fitting tight on the holder.