Product Specification

480 1000 039/01 Sunshine Sensor Description
Replacement Sun duration sensor for use with the Climatica Plus, EWS weather station, and stand alone systems.

The sensor comes supplied with 25m of cable as standard.

Also available as a direct replacement is our Infra Red filtered version of the sun sensor. These Infra Red filtered light sensitive diodes will only accept light to pass within the WMO guidelines for sun duration measurements, giving an overall much more accurate reading over the standard sensor.

480 1000 039/01 Sunshine Sensor Installation Instructions
Sunshine Sensor
The Sensor is designed to be mounted on a mast of between 25 & 50 mm diameter. The mast (usually the Wind Sensor mast) should be sited where trees, buildings etc. will not cause a shadow at any time of day throughout the year. It must be borne in mind that the sun rises and sets on the horizon which in mid-summer can be NE & NW (depending on latitude) and only rises to a low angle in mid-winter.

The Sensor is best mounted on the top of the Wind Sensor mast above any aerials etc and pointed approximately South (North in the Southern hemisphere) to avoid shadows.

The Sunshine Sensor functions by comparing sunlight to shadow, when the ratio exceeds a pre-determined threshold, the sun is deemed to be shining and the counter will count up one every 36 seconds (0.01 hour).

Setting Threshold. This is preset at the factory and should not normally require adjustment. However, should minor alterations be required due to the glass dome becoming dirty, the small preset on the daughter board can be adjusted.