Specifications
Section 6. Maintenance and Troubleshooting 
6.1.3 Desiccant 
In standard weather stations, a humidity indicator card is provided with the 
enclosure. A small RH sensor (10162) can be purchased separately to record 
the RH inside the enclosure. Change the desiccant when either the card or the 
sensor read about 35% RH. 
Desiccant may be ordered through Campbell Scientific (DSC 20/4). 
Desiccant packs inside of the dataloggers do not require replacement under 
normal conditions. 
6.1.4 Sensor Maintenance 
Sensor maintenance should be performed at regular intervals, depending on the 
desired accuracy and the conditions of use. A suggested maintenance schedule is 
outlined below. 
1 week 
•  Check the pyranometer for level and contamination. Gently clean, if 
needed. 
•  Visually inspect the wind sensors and radiation shield. 
1 month 
•  Check the rain gage funnel for debris and level. 
•  Do a visual/audio inspection of the anemometer at low wind speeds. 
•  Check the filter of the temperature/humidity sensor for contamination. 
General Maintenance 
•  An occasional cleaning of the glass on the solar panel will improve its 
efficiency. 
•  Check sensor leads and cables for cracking, deterioration, proper routing, 
and strain relief. 
•  Check the tripod or tower for structural damage, proper alignment, and for 
level/plumb. 
6 months 
•  Clean the temperature/humidity sensor. 
•  Clean the Gill Radiation Shield. 
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