Span (infinitely adjustable) or measuring range, max. permissible operating pressure (in accordance with Pressure Equipment Directive 2014/68/EU) and max. test pressure (pursuant to DIN 16086) (for oxygen measurement, max. 100 bar/ 10 MPa/1450 psi and 60 °C (140 °F) ambient temperature/process temperature)
Gauge pressure span | Max.permissible operating pressure MAWP (PS) | Maximum permissible test pressure |
8.3 ... 250 mbar | 4bar | 6bar |
0.83 ... 25 kPa | 0.4 MPa | 0.6 MPa |
0.12 … 3.6 psi | 58 psi | 87 psi |
0.01 ... 1 bar | 6 bar | 9 bar |
1 ... 100 kPa | 0.6 MPa | 0.9 MPa |
0.15 … 14.5 psi | 87 psi | 130 psi |
0.04 ... 4 bar | 20 bar | 30 bar |
4 ... 400 kPa | 2 MPa | 3 MPa |
0.58 … 58 psi | 290 psi | 435 psi |
0.16 ... 16 bar | 45 bar | 70 bar |
0.016 ... 1.6 MPa | 4.5 MPa | 7 MPa |
2.3 … 232 psi | 652 psi | 1015 psi |
0.63 ... 63 bar | 80 bar | 120 bar |
0.063 ... 6.3 MPa | 8 MPa | 12 MPa |
9.1 … 914 psi | 1160 psi | 1740 psi |
1.6 ... 160 bar | 240 bar | 380 bar |
0.16 ... 16 MPa | 24 MPa | 38 MPa |
23 … 2321 psi | 3480 psi | 5511 psi |
4 ... 400 bar | 400 bar | 600 bar |
0.4 ... 40 MPa | 40 MPa | 60 MPa |
58 … 5802 psi | 5802 psi | 8702 psi |
7 ... 700 bar | 800 bar | 800 bar |
0.7 ... 70 MPa | 80 MPa | 80 MPa |
102 … 10153 psi | 11603 psi | 11603 psi |
Item | Details |
Model | SITRANS P320 / SITRANS P420 pressure transmitter |
Transmitter Type | Differential Pressure Transmitter |
Accuracy | 0,065 % (SITRANS P320), 0,04 % (SITRANS P420) |
Response time | down to 105 ms |
Long-Term Stability | ≤ 0.125 % / 5 years |
Measuring cells | from 20 mbar to 700 bar |
Max. Turndown | 100:1 |
Measured medium temperature | -40 °C to +100 °C |
Certificates/ Approvals | ATEX, IEC EX, FM, CSA, NEPSI and others |
SIL-2/3 certification | Developed according to IEC 61508 standards |
Communication | 4 … 20 mA / HART, PROFIBUS PA, FOUNDATION Fieldbus |
Diaphragm materials | Stainless steel, Hastelloy, Tantalum, Monel, Gold |
Accuracy | 0,065 % (SITRANS P320), 0,04 % (SITRANS P420) |
Response time | down to 105 ms |
Weight | Approx. 2.3 kg (5.07 lb) with aluminum enclosure Approx. 4.2 kg (9.25 lb) for stainless steel enclosure |
SITRANS P320/P420 pressure transmitters are digital pressure transmitters featuring extensive user-friendliness and high accuracy. The parameter assignment is performed using input buttons or the HART interface.
The comprehensive functionality makes for precise adjustment of the pressure transmitter to the requirements of the plant. Operation is very user-friendly in spite of the numerous setting options.
Due to their advanced diagnostic functionalities according to NAMUR NE107, the SITRANS P320/P420 pressure transmitters are very suitable for use in chemical plants. Thanks to the advanced diagnostic functions and the process value storage, the SITRANS P420 is "Ready for Digitalization".
The "Remote Safety Handling" function saves customers significant amounts of time and money, because the SIL function can be switched on and validated remotely via SIMATIC PDM. This eliminates travel times and on-site operation via the local display or keyboard.
Parameter assignment using the HART protocol is very easy and quick thanks to the innovative EDD with integrated Quick Start wizard.
The transmitters can be equipped with various types of remote seals for special applications such as the measurement of highly viscous substances.
• Gauge pressure
• Absolute pressure
• Differential pressure
• Level
• Volume flow
• Mass flow
• 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)
• Convenient parameterization over 4 input buttons and HART interface
SITRANS P320/P420 pressure transmitters can be used in industrial areas with extreme chemical and mechanical loads.
The pressure transmitters can be used in zone 1 or zone 0 with the corresponding Ex approval.
The transmitters can be equipped with various designs of remote seals for special applications such as the measurement of highly viscous substances.
The pressure transmitter can be operated locally over 4 input buttons or programmed externally over HART interface.
Pressure transmitter for gauge pressure
Measured variable:
• Gauge pressure of corrosive and non-corrosive gases, vapors and liquids.
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
Pressure transmitters for absolute pressure
Measured variable:
• Absolute pressure of corrosive and non-corrosive gases, vapors and liquids.
Span (infinitely adjustable)
• For SITRANS P320/P420 with HART: 8.3 mbar a to 100 bar a (0.12 to 1450 psi a)
There are two series:
• Gauge pressure series
• Differential pressure series
Packaging: Original cardboard box packaging
Esito (weifang) Automation Equipment Co., Ltd. specializes in industrial automation instrument development, production and sales, technical services, and supporting equipment supply of specialized companies. The main products are flow meters, level meters, temperature meters, pressure meters, electrical meters, thermal intelligent meters, programmable controllers (PLC), DCS distributed control systems, and eight series of more than 1,000 specifications. Its products and technologies are widely used in electric power, metallurgy, petrochemicals, environmental protection, plastics, food, printing, tobacco, textile, dyeing, and other fields.
We can offer rosemount, Endress+Hauser, yokogawa, Siemens, ABB,Fisher,Koso, Samson, Abzil, NELES,UE etc, Brands.
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