Frequently Asked Questions

If the UV sensor reads 0 all of the time, visually inspect and clean the sensor eye (#11 in the image below) with a damp micro-fiber cloth.

The UV sensor manufacturer may have included a gain or adjustment for a specific sensor technology or build. Please reference your weather station battery compartment for any reference to gain adjustment. In the example figure below, a gain of 1.7 must be entered into the console.

To adjust the UV gain in the console:

• In normal mode, press and hold [ INDEX ] key for 8 seconds to enter UV index calibration mode
• Use [ GRAPH / Ʌ ] or [ °F / °C / V ] key to adjust the UV gain up or down (the default is 1.0).
• Press the [ INDEX ] key twice to confirm and exit this setting

The default UV gain magnification factor is 1.0, and can be adjusted up or down in increments of 0.1.

Over time, the UV sensor will naturally degrade.  The UV sensor can be calibrated with a utility grade UV meter. However, if the UV still reads 0 all of the time, it is likely the sensor array needs replacing.

We have a one year warranty. Please visit:

www.AmbientWeather.com/rma.html

For out of warranty replacement, please visit:

https://www.ambientweather.com/amws8478array.html