Maintaining the sensors, Sensor troubleshooting, Contacting davis technical support – DAVIS Solar and UV Radiation Sensors for Vantage Pro/Pro2 User Manual
Page 8

Product Numbers: 6450, 6490 and 6673
Document Number: 07395.292
UV Sensor, Solar Radiation Sensor, and Sensor Mounting Shelf Installation Manual Rev. E (6/18/14)
Vantage Pro
®
and Vantage Pro2
™
are trademarks of Davis Instruments Corp., Hayward, CA.
© Davis Instruments Corp. 2014. All rights reserved. 
Information in this document subject to change without notice.
This product complies with the essential protection requirements of the EC EMC Directive 2004/108/EC.
Davis Instruments Quality Management System is ISO 9001 certified.
3465 Diablo Avenue, Hayward, CA 94545-2778 U.S.A.
510-732-9229 • Fax: 510-732-9188
E-mail: [email protected] • www.davisnet.com
®
Maintaining the Sensors
For the most accurate readings, clean the diffuser after mounting, and then 
periodically. Use ethyl alcohol (not rubbing alcohol).
Due to the sensitivity of ultraviolet and solar radiation sensors, it is common 
practice for manufacturers to recommend recalibration after a period of time. Here 
at Davis Instruments, we have seen approximately 2% drift per year on the 
readings from these sensors. For applications demanding higher accuracy, the 
sensors should be calibrated once every year. 
Sensor Troubleshooting
If encountering sensor problems, carefully check all cable connections. Cable 
connections account for a large portion of the potential problems. Plugs should be 
firmly seated in the jacks and plugged in straight. Try jiggling the cable while 
looking at the display. If a reading appears intermittently on the display as you 
jiggle the cable, the connection is faulty.
Contacting Davis Technical Support
For questions about installing or operating your sensors or mounting shelf, please 
contact Davis Technical Support. We’ll be glad to help.
Online
www.davisnet.com
See the Weather Support section for copies of user 
manuals, product specifications, application notes, 
software updates, and more.
Telephone
(510) 732-7814
Monday -Friday, 7:00 a.m. - 5:30 p.m. Pacific Time
