Troubleshooting
The Light Sensor is sensitive enough to pick up the 60 or 120 Hz flicker of
overhead fluorescent lamps, which may interfere with light experiments. If you
think such interference may be occurring, try the following:
First, eliminate all artificial light sources (except battery-powered flashlights)
and try your experiment again.
Next, test the Light Sensor positioned as you plan to use it. Set the sampling at
1000 points/second for 0.1 second. If the flicker is the problem, you will see a
drastic variation in the light intensity with a period of 60 or 120 Hz
(50 or 100 Hz outside of North America).
If the overhead flicker is an issue, set the sampling rate to a number that is not
a factor of 60. For example, using 30, 20, or 10 samples/s is worse than using
17, 23, 27 samples/s.
For further troubleshooting tips and FAQs, see
www.vernier.com/til/1419
Repair Information
If you have watched the related product video(s), followed the troubleshooting
steps, and are still having trouble with your Light Sensor, contact Vernier
Technical Support at [email protected] or call 888-837-6437. Support
specialists will work with you to determine if the unit needs to be sent in for
repair. At that time, a Return Merchandise Authorization (RMA) number will be
issued and instructions will be communicated on how to return the unit for repair.
Warranty
Vernier warrants this product to be free from defects in materials and workmanship
for a period of five years from the date of shipment to the customer. This warranty
does not cover damage to the product caused by abuse or improper use. This
warranty covers educational institutions only.
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Vernier Software & Technology
13979 SW Millikan Way • Beaverton, OR 97005-2886
Toll Free (888) 837-6437 • (503) 277-2299 • FAX (503) 277-2440
[email protected] • www.vernier.com
Rev. 2/8/16
Logger
Pro,
Logger Lite, Vernier LabQuest 2, LabQuest Mini, and other marks shown are our trademarks or
registered trademarks in the United States.
All other marks not owned by us that appear herein are the property of their respective owners, who may or may
not be affiliated with, connected to, or sponsored by us.
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