04-10-2016, 09:31 PM
Hi Chris, the water level setting changes how sensitive the optical sensor is, 10 being the most sensitive.
Only the tip of the optical sensor touches the water, when water is touching it the pump doesn't run, as soon as the water level drops the sensor notices the water level changed so the pump turns on. If you have the water level set to 1 then the water barely touches the sensor before activating, if you have it set to 10 it doesn't come down much before the pump turns on. So if you want more evaporation before the pump runs set it to a lower level.
This is why the float switch goes above the optical sensor, if the optical sensor quits working and the water goes above it the float will rise and turn off the pump. Hope this makes sense.
PS: You don't really want to submerse the optical sensor in water.
Only the tip of the optical sensor touches the water, when water is touching it the pump doesn't run, as soon as the water level drops the sensor notices the water level changed so the pump turns on. If you have the water level set to 1 then the water barely touches the sensor before activating, if you have it set to 10 it doesn't come down much before the pump turns on. So if you want more evaporation before the pump runs set it to a lower level.
This is why the float switch goes above the optical sensor, if the optical sensor quits working and the water goes above it the float will rise and turn off the pump. Hope this makes sense.
PS: You don't really want to submerse the optical sensor in water.
