Dynamic pressure bell for recording the hydrostatic pressure for fluids that contain faeces. The pressure transducer measures the level in the pump chamber through changes in pressure in the fluid. These pressure changes are forwarded to the switchgear through a sealed hose and evaluated by measuring elements. Because the dynamic pressure bell is open in the direction of the fluid (open dynamic pressure system), the dynamic pressure bell must be aerated after each drainage pumping sequence. Accordingly, the switchgear must have an adjustable run-on time (OFF according to time). If aeration of the dynamic pressure bell is not ensured, then the dynamic pressure bell must be aerated either continuously or periodically (OFF according to level) using a compressor (bubbling-through system, can be ordered as an option).
Use in potentially explosive areas permitted.
