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Differential Pressure Transmitter


SC502 is a 2-wire differential pressure transmitter housed in an IP65 enclosure made of ABS plastic. By deploying pressure tubes into two different areas, SC502 measures, displays and transmits the difference in pressure between those areas. This transmitter is widely used in pharmaceutical facilities that must maintain a pressure gradient to prevent cross-contamination of the various materials within its rooms. In a typical pharmaceutical BMS (building monitoring system), SC502 is installed on the service floor above two rooms with pressure ports in each room’s ceiling. Via a 4-20 mA signal, Radix often pairs SC502 with our proprietary Clean Room Display to indicate differential pressure for operators inside the rooms. The transmitter has its own 4-digit LCD display and is easily configured via a dipswitch or PC to indicate differential pressure in a wide range of units - Pa (pascals), mmWC, mbar, inWG, inHg, PSI, mmHg. SC502’s microcontroller technology linearizes the input which makes control more effective. If programmed by a computer, you will require a PC configurator, PCC82 by Radix. A push button on the unit allows easy auto-zero adjustment.

  • True 2-wire operation
  • Measures in Pa, mmWC, mbar, inWG, inHg, PSI, mmHg
  • High accuracy
  • Software calibration - no trimpots
  • 12 - 32 V DC loop supply
  • User programmable using PC configurator PCC82 connected to USB port of any PC
  • Auto-zero adjustment with pushbutton switch
  • DIP switches for selection of Unit & Range
  • 4-digit LCD display




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