Beckhoff EM3701 | EtherCAT Terminal, 1-channel analog input, differential pressure

The EM3701 analog input terminal measures the differential pressure between

two hose connections in a measuring range of ±100 mbar. The pressure value

is directly available to the controller as a 16-bit value, and errors such as out-

of-range values are also displayed. The compact design and simple connection

system support space-saving and quick installation with no need for additional

measuring devices.

The terminal can be used to measure pressure or also to replace a pressure

switch. It is not suitable for measuring aggressive gases. The pressure value

in the controller enables the switching threshold to be stored as a parameter

for a logical operation.

Manually setting the pressure switch in the application is therefore no longer

required.

Special features:

• direct differential pressure measurement in the ±100 mbar measuring range

• pressure range overflow display

• compact design and simple connection technology

• can be used as a replacement for pressure switches

The EM3701 belongs to the EM37xx series of pressure measuring terminals.

These are split into two groups: differential pressure measurement (measurement

between two terminals) and relative pressure measurement (measurement relative

to the environment).