Stationary wind pressure gauge
Round metal pointer instrument with 50 cm connected transparent plastic tube with outer diameter 9 mm. Outer diameter of device 63 mm. Reading lines at intervals of 1 mbar = 10 mm WS.
This wind pressure gauge is useful as a stationary pressure gauge. The pressure position of the pointer for each bellows or movement can be noted directly on the scale by removing the protective glass. Regardless of the pressure defined as the "mm water column", the respective pressure is thus fixed when leaving the finished organ and can be checked quickly and easily at each service. However, it is important that the measuring device adjusted to the respective organ is always available for the control measurements and thus remains permanently in the organ.
The background to this measurement and control variant is the fact that mobile measuring devices are only suitable for control measurements to a limited extent due to their respective tolerances. Control measurements are intended to prevent unintentional changes to the wind pressure and thus also to the organ tuning due to technical changes to the bellows springs, bellows weights or other influences. With a wind pressure control device that remains with the organ, uncertainties due to measurement errors caused by different measuring devices are minimized. The use of such a stationary wind pressure control device should be planned for new or overhauled organs in particular.
Please also take a look at our electronic wind pressure measuring devices. For occasional measurements only, the inexpensive device Cat. No. 32650 is suitable for occasional measurements.