HART pressure transmitter / relative / vacuum / thin-film
Series 450 Barksdale



  • Pressure type:

    relative, vacuum

  • Technology:

    thin-film, silicon

  • Output signal:

    analog, HART

  • Other characteristics:

    compact, CE, intelligent, WirelessHART, for the petrochemical industry, IP67

  • Process temperature:

    Max.: 80 °C (176 °F)

    Min.: -40 °C (-40 °F)

  • Pressure range:

    Max.: 0.02 bar (0.29 psi)

    Min.: -1 bar (-14.5 psi)


Barksdale Intelligent Transmitters (BiT), Series 450 is a high pressure transmitter with HART® communication protocol option. HART® enabled sensors can communicate over the legacy two-wire 4-20 mA analog current loops offering smart features like transmitter diagnostics, calibration, and field re-ranging up to 10 times less than calibrated full scale output (10:1 turndown ratio). Three models are available: Series H455, 4-20 mA output with HART® Comm. Protocol; Series 455, 4-20 mA output; Series 452, 1-5 VDC output. These models can be configured with 24-standard pressure ranges from vacuum to 30,000 psi and multiple process connections from 1/4” NPT to 7/16” SAE and HF4 Autoclave high-pressure connections. Multiple electrical connections are also offered, including popular industrial and MS style connectors for easy connection. Series 450 offers cULus approval for ordinary location.

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