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Catalogue Displays

12 www.bdsensors.com PA 450 2 Channel Process Display Subtraction Function ► different display modes to show difference or input ► simulation of contact and analogue output ► simple menu system for configuration of display, contacts, etc. Product characteristics ► mathematical subtraction for standard transmitter with 4 … 20 mA / 2-wire technology ► integrated transmitter power supply ► output signal 4 … 20 mA and 0 … 20 mA adjustable ► turn down of analogue signal 1:6 ► 4-digit LED display ► robust plastic housing Optional versions ► 3-wire-analogue output: 0 ... 10 V ► 1 or 2 contacts ► square root extraction The process display PA 450 has been designed for the subtraction of two independent analog signals. Due to the integrated transmitter power supply the wiring costs are considerably re- duced. The difference or the individual value of the re- spective transmitter is shown on the 4-digit LED display. About the user-friendly menu system the device simply can be configured. It has functions, such as access protection, configuration of adver- tisement and contacts, min. / max. value memo- ry. The set parameters are being stored in an EEPROM and are being kept also in case of power breakdown. Optionally the PA 450 can reamed with one or two contacts and square root analogue signal. Typical applications Differential Pressure Measurement Filter Monitoring DISPLAYS

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