Measuring principle
The pressure in a liquid increases with increased filling height. This hydrostatic pressure is transmitted to the measuring cell via a stainless steel diaphragm. Foam, build-up, fluctuating electrical properties of the liquid and the container design do not affect the measurement values.
Operation mode
The fill level of a liquid can be determined by the hydrostatic pressure if the density is known. The piezoresistive measuring cell is coupled to the measuring liquid via a stainless steel isolation membrane and diaphragm seal.
The value of the measuring cell can be converted via a signal conditioner into one of the following output signals:
- 4 ... 20 mA analog signal
- 4 ... 20 mA analog signal with HART
- PROFIBUS PA digital signal
The pressure sensors are available in the following versions:
- Externally mounted type
- Rod type
- Suspended type
Several hundred products with a SIL/PL assessment, free tools, and brochures in one place: the "Functional Safety Hub" is your starting point when you have to implement safety functions.
Pepperl+Fuchs A/S
Kirkebjerg Allé 90
DK-2605 Brøndby
Denmark
info@dk.pepperl-fuchs.com
+45 7010 4210
Pepperl+Fuchs er markedsledende indenfor udvikling og fabrikation af elektroniske sensorer og komponenter til det globale automatiseringsmarked. Kontinuerlig innovation, kombineret med høj kvalitet og stabil vækst har sikret uafbrudt succes gennem mere end 70 år. Pepperl+Fuchs har 6.300 ansatte på verdensplan og har produktionsfaciliteter i Tyskland, USA, Singapore, Ungarn, Indonesien og Vietnam; de fleste ISO 9001 certificerede.