User Manual

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.
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E-mail: [e-mail] • 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
man
uals, product specifications, application notes,
software updates, and more.
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Monday -Friday, 7:00 a.m. - 5:30 p.m. Pacific Time