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
Här hittar du flera hundra produkter med SIL/PL-bedömning, kostnadsfria verktyg och broschyrer: funktionssäkerhetsnavet är utgångspunkten när du behöver implementera säkerhetsfunktioner.
Pepperl+Fuchs AB
Bultgatan 40 A
442 40 Kungälv
Sverige
orgnr. 556212-2126
info@se.pepperl-fuchs.com
+46 303 246070
Pepperl+Fuchs is a leading developer and manufacturer of electronic sensors and components for the global automation market. Continuous innovation, enduring quality, and steady growth have been the foundation of our success for more than 70 years. Pepperl+Fuchs employs 6,300 people worldwide and has manufacturing facilities in Germany, USA, Singapore, Hungary, Indonesia and Vietnam, most of them ISO 9001 certified.