Absolute pressure gauge EL-PRESS P-502C

digitalstainless steelelectronic

The Bronkhorst Digital Electronic Pressure Meter range are suited for precise measurement of pressure ranges between 2…100 mbar and 1,28…64 bar absolute or between 0,7…35 mbar and 1,28…64 bar gauge. These transducers (or EPT) have a well-proven compact thru-flow design and includes a diaphragm type piezo-resistive pressure sensor, a microprocessor based pc-board with signal and fieldbus conversion and a PID controller for optional pressure control by means of a separately mounted control valve EL-PRESS series are equipped with a digital pc-board, offering high accuracy, excellent temperature stability and fast response. The main digital pc-board contains all of the general functions needed for measurement and control. In addition to the standard RS232 output the instruments also offer analog I/O. As an option, an on-board interface can be mounted to provide CANopen®, DeviceNet™, EtherCAT®, PROFIBUS DP, PROFINET, Modbus RTU, ASCII or TCP/IP, EtherNet/IP, POWERLINK or FLOW-BUS protocols. Key features of the digital electronic pressure meter include: For absolute or gauge pressure High accuracy and repeatability Well proven, compact thru-flow design On-board PID controller for pressure control Analog, RS232 and fieldbus communication How does it work? The Bronkhorst EL-PRESS pressure sensor is a piezoresistive bridge on the surface of a silicon chip. This chip is drilled out on its reverse side, giving the inside of the chip the form of a pressure diaphragm, whose thickness determines the pressure range. When a pressure acts on this chip, the diaphragm flexes, and the resistor values of the bridge alter in proportion to the pressure.