Relative pressure transmitter with separating membrane

This type of pressure sensor is used to measure the pressure of liquids and gases in cases where it is not permissible for the measured medium to enter the measuring device of the meter.

Use of pressure transducers with separating membrane:

• highly viscous liquids
• solid particles, sedimenting sludges
• hot liquids that solidify or crystallize when the temperature drops
• aggressive liquids
• in cases where there are strict requirements for perfect cleaning and sanitation of the system

The concept consists in the use of a separating membrane and an inert liquid, which transmits the pressure to the measuring device of the pressure sensor.

Membrane separators

Membrane separators are designed for applications in which the operating medium must not come into contact with the meter (eg due to contamination, presence of solid particles, viscosity, etc.)

They are designed with an emphasis on longevity and extreme operating conditions. Separators are designed for the food and beverage industry and wherever the emphasis is on thorough sanitation and cleaning. Diaphragm-separated pressure transmitters can also be used in operations where vibrations or pulsating pressures occur.

Technical data of the membrane separators:

• Material of the membrane separator: AISI 316L (1.4404), Ra≤0,8 µm

• Materiál of the body of CLAMP separator: AISI 304 (1.4301)

• Working temperature: –45 °C to +150 °C

• Diaphragm designed for pressure range: 0–60 bar