KM3712 | Bus Terminal module, 2-channel analog input, relative pressure, ±1000 hPa (-1…+1 bar)

The KM3712 analog input terminal measures the pressure value as a difference to the environment (relative pressure measurement), in the measuring range of ±1 bar. This means that negative pressure values are also permissible as a difference to the environment. 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 relative pressure measurement in the measuring range of ±1 bar
• pressure range overflow display
• compact design and simple connection technology
• can be used as a replacement for pressure switches

The KM3712 belongs to the KM37xx 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).