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Fischer pressure transmitter Building technology DE38

Available for hazardous zone application, zone 1, zone 2 with ATEX certification Fischer DE 38 is a multi-function field mounted pressure instrument that combines a digital readout, transmitter and dual limit detection relays. It can be used for  measurement and control of positive or negative gauge pressure, differential pressure, flow and level. It is compatible for use with relatively clean and non-corrosive gases or liquids.

Technical Specification:
 
  • Measuring range: 0-400 mbar to 0-1600 mbar, 0-1 bar to 0 -6 bar
  • max. static operating pressure: 16 bar
  • Operating temp. (ambient) -10 to 70°C
  • Operating temp. (media) -10 to 70°C
  • Storage temperature -20 to 70°C
  • Protection class (housing) IP 65 per DIN EN 60529
  • Output signal: 0/4-20 mA, 0-10 V

Principles of Operation: The instrument uses a tough, flexible sensing diaphragm embedded between stiffening plates and balanced by springs on either side. The diaphragm is at zero position when pressures on either side of the diaphragm are equal. Inequality of pressures results in deflecting the diaphragm towards the lower pressure side until a new equilibrium determined by the changed balance of forces is reached. Fastened to the center of the diaphragm is an axial rod, the other end of which forms the moving core of a precision LVDT displacement sensor element. The linear displacement of the LVDT core is proportional to the pressure difference across the diaphragm. This displacement is converted by the transmitter's electronic module to a standard electrical signal output. An optional output signal can be slew rate limited, spreaded, inverted and transformed nonlinearly by means of a table function.

Features:
 
  • Robust design; over-pressure protected
  • Wear-free non-contact LVDT sensing element needs no maintenance
  • Selectable pressure units
  • Signal output with possibility of spreading and inverting characteristic curve with any offset (optional)
  • Characteristic conversion of output via 3...30 entries table
  • Complete set-up of all parameters and print out by using optional PC-programming interface EU03
  • Password protectoin
  • Applications
  • Monitoring of compressors, filters and vacuum systems
  • Measurement of differential pressure between supply and return fuel lines in heating systems
  • Flow, control-pressure and level measurement
  • Industries:
  • Process, Chemical, Paints, Fertilizer
  • Plant Engineering
  • Marine, Shipping, Ship Breaking
  • Process Industries
  • Oil & Gas, Petrochemical, Heavy Oil, Hydrocarbon, Refinery
  • Water Treatment
  • Waste Treatment, Sewage Plant
  • Refrigerant, HVAC
  • Automobile
  • Thermal, Hydro, Power Plants, Boiler, Steam Turbines
  • Nuclear power plants



 

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