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SIEMENS SITRANS P320/P420 Digital Pressure Transmitter

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SITRANS P320/P420 are Siemen’s high accuracy flexible pressure transmitter. These transmitters have a huge number of options, ranges and configurations to suit any application.

Benefits

  • Diagnostic functions in accordance with NAMUR recommendation NE107
  • SIL devices developed according to IEC 61508
  • SIL validation on the device or remotely with SIMATIC PDM
  • Reduction of internal inductance for Ex applications to LI = 0
  • Step response time for pressure type T63 = 105 ms and for differential pressure type 135 ms.
  • Minimal conformity error
  • Very low temperature influence
  • Very good long-term stability
  • High quality and service life
  • High reliability even under extreme chemical and mechanical loads
  • For corrosive and non-corrosive gases, vapors and liquids
  • Extensive diagnostics and simulation functions
  • Separate replacement of measuring cell and electronics without recalibration
  • Wetted parts made of high-grade materials (e.g., stainless steel, alloy, gold, Monel, tantalum)
  • Infinitely adjustable spans from 0.01 bar to 700 bar (0.15 psi to 10153 psi)

SITRANS P320/P420 pressure transmitters are available in various versions for measuring:

Gauge Pressure:

Measured variable:

  • Gauge pressure of corrosive and non-corrosive gases, vapors and liquids.

Measuring span (infinitely adjustable)

  • For SITRANS P320/P420 with HART: 0.01 bar to 700 bar (0.15 psi to 10153 psi)

There are two series:

    • Gauge pressure series
    • Differential pressure series
Absolute Pressure:

Measured variable:

  • Absolute pressure of corrosive and non-corrosive gases, vapors and liquids.

Measuring span (infinitely adjustable)

  • For SITRANS P320/P420 with HART: 8.3 mbar a to 160 bar a (0.12 to 2 321 psi a)

There are two series:

  • Gauge pressure series
  • Differential pressure series
Differential and Flow Pressure:

Measured variables:

  • Differential pressure
  • Small positive or negative overpressure
  • Flow q ~ √Δp (together with a primary differential pressure transducer)

Measuring span (infinitely adjustable)

  • For SITRANS P320/P420 with HART: 1 mbar to 160 bar (0.0145 to 2 321 psi)
Level Measurement:

Measured variable:

  • Level of corrosive and non-corrosive liquids in open and closed vessels.

Measuring span (infinitely adjustable)

  • For SITRANS P320/P420 with HART:
    25 mbar to 5 bar (0.363 to 72.5 psi)

Type of the mounting flange:

  • EN 1092‑1 flanges
  • ASME B16.5 flanges
  • J.I.S. flanges
  • Diverse range of sealing surface forms available

Product Data Sheet – Siemens SITRANS P320/P420 Digital Pressure Transmitter

Operation Manual – Siemens SITRANS P320/P420 Digital Pressure Transmitter with 4 to 20 mA/HART

Detail

Application
  • Gauge pressure
  • Absolute pressure
  • Differential pressure
  • Level
  • Volume flow
  • Mass flow
Input

(Measuring Range)

 

Gauge:

0.01 bar to 700 bar (0.15 psi to 10153 psi)

Absolute:

8.3 mbar a to 160 bar a (0.12 to 2 321 psi a)

Flow/Differential:

1 mbar to 160 bar (0.0145 to 2 321 psi)

Level:

25 mbar to 5 bar (0.363 to 72.5 psi)

Output

(Current Signal)

4 … 20 mA
Measuring Accuracy Dependent on Configuration
Operating conditions Dependent on Configuration
Degree of Protection Dependent on Configuration
Weight Dependent on Configuration
Electrical Connections Dependent on Configuration
Explosion Protection Dependent on Configuration
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SIEMENS SITRANS P320/P420 Digital Pressure Transmitter
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