11-09-2016, 09:22
I have made another change to my weather station. I have upgraded the rain gauge to something that is more accurate than what the original "Fine Offset" gauge offered.
This rain gauge has a much deeper catchment, preventing splash out. It is also round rather than rectangular making catchment even, no matter what way the weather is coming from.
Mounting has also been an issue until now. With the rain gauge mounted on the main anemometer mast, false rain readings would be recorded due to vibration of the mast or wind blowing beneath the rain gauge.
The new positioning of the rain gauge will see this greatly reduced. Wind will not be able to cause false tips and with the firm mount on the roof, vibration is also eliminated. It is also in a much more open and clear position; I know that a roof top rain gauge is not idea, but due to my location, this actually provides the most open space. The lip of the rain gauge is in line with the pitch of the roof.
Why is the rain gauge such an odd shape with vents? Well it is part of a stand-alone wireless rain gauge with built in temperature sensor. Sadly it does not follow the "Auriol" wireless protocol so it has been modified to work on a cable. No additional calibration required as this unit also holds the 0.3mm of rain like the "Fine Offset" gauge did.
This rain gauge has a much deeper catchment, preventing splash out. It is also round rather than rectangular making catchment even, no matter what way the weather is coming from.
Mounting has also been an issue until now. With the rain gauge mounted on the main anemometer mast, false rain readings would be recorded due to vibration of the mast or wind blowing beneath the rain gauge.
The new positioning of the rain gauge will see this greatly reduced. Wind will not be able to cause false tips and with the firm mount on the roof, vibration is also eliminated. It is also in a much more open and clear position; I know that a roof top rain gauge is not idea, but due to my location, this actually provides the most open space. The lip of the rain gauge is in line with the pitch of the roof.
Why is the rain gauge such an odd shape with vents? Well it is part of a stand-alone wireless rain gauge with built in temperature sensor. Sadly it does not follow the "Auriol" wireless protocol so it has been modified to work on a cable. No additional calibration required as this unit also holds the 0.3mm of rain like the "Fine Offset" gauge did.