7MF7641 SITRANS P250 transmitter

■Benefits

• High measuring accuracy

• Sturdy stainless steel enclosure

• For aggressive and non-aggressive media

• For the measurement of the differential pressure of liquids

and gases

• Temperature-compensated measuring cell

• Compact design

■Application

The SITRANS P250 transmitter for differential pressure is

primarily used in the following industries:

• Chemical industry

• Heating, ventilation and air conditioning technology

• Food industry

• Mechanical engineering

• Shipbuilding

• Water supply

■Design

Main components:

• Stainless steel enclosure with piezo-resistive ceramic measuring cell (temperature-compensated) and electronics module

• Process connection made of stainless steel in diverse designs (see Selection and Ordering data)

• Electrical connection through connectors acc. To EN 175301-803-A and round connectors M12, as well as with permanently fixed cable

■Function

The pressure transmitter measures the differential pressure of liquids and gases.

Mode of operation

The piezo-resistive measuring cell (ceramic membrane) has a Wheatstone bridge circuit, on which the operating pressure P1 and P2 of the media acts at both ends.

The voltage output from the measuring cell is converted by an amplifier into an output current of 4 to 20 mA or an output voltage of 0 to 5 or 10 V DC.

The output current and voltage are linearly proportional to the input pressure.

■Dimensional drawings

7MF7641 SITRANS P250 transmitter