Absolute pressure sensor 4011A

piezoresistivevoltage outputcurrent output

In the pressure sensor Type 4011A, the pressure acts on a silicon load cell via a thin steel diaphragm and via oil as the transmission medium. The load cell contains implanted piezoresistive resistors connected to provide a Wheatstone measuring bridge. This bridge is unbalanced due to the action of pressure, producing an output signal that is proportional to the pressure. Excellent media compatibility is achieved by separation of the measuring element and the medium. Thanks to its modular structure, the Type 4011A pressure transducer is highly versatile. All sensor versions have fully shielded cabling in order to deliver better signal quality. Kink protection minimizes cable damage. Connections, extension cables and amplifiers are standardized throughout the digitally compensated DS sensor family, which is equipped with PiezoSmart. This means that Type 4011A can be integrated seamlessly with piezoresistive SCP amplifiers (Types 4624A, 4665 and 4665B). Time is saved on measurements, and less equipment is required. Digital temperature compensation additionally minimizes temperature-induced zero point and sensitivity changes, without impairing the signal bandwidth. Two compensation ranges are available for optimal adaptation to the purpose of use. Furthermore, digital temperature compensation allows monitoring of the sensor temperature (e.g. with amplifiers of Types 4665B and 4624A).