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
















