Tank level sensor for ships (pressure)
PESS
BESI Marine Systems
Installation
The versatile PESS sensor system provides measurement access from the top or from the side of the tank. It can be mounted close to or distant from the measuring point. The sensor is connected to the tank via a measuring pipe which is guided into the corresponding tank to a level of approx. 30mm above tank bottom. Approved by Germanischer Lloyd (GL) and ABS, the tank sounding pipes can be used as PESS measuring pipes as well if they are closed airtight to prevent any leakage.
Design benefits
The PESS sensor system consists of a readyassembled and pre-adjusted sensor box with an air-throttle valve, a non-return valve, an electronic pressure transmitter, a stop-cock, and a test connection for testing the sensor even when the tank is empty.
Based on the principle of an air purge system (or ?bubble system?), the measuring cell of the pressure sensor never makes contact with the liquids to be measured. The permanent air flow (bubbles) keeps the measuring tube permanently free from fluid and protects the pressure sensor against dirt and heat. This means that the PESS sensor will never be damaged or influenced by adherent sediments. Another important design benefit of the proximity measuring principle is that the medium temperature is totally irrelevant. Service to the system can be done from outside the tank.
-
zoom
