SITRANS P320\/P420 are robust, reliable digital pressure transmitters with Remote Safety Handling, for faster proof-testing, high accuracy and simple compliance.<\/p>\n
SITRANS P320\/P420 are robust, reliable digital transmitters with Remote Safety Handling, for faster proof-testing, high accuracy and simpler compliance.<\/p>\n
This robust, flexibly adaptable process control system ensures optimal availability and maximum efficiency throughout your plant’s entire lifecycle.<\/p>\n
Head-mounted temperature transmitters for reliable measurement, easy integration, and advanced diagnostics, from standard to high-availability applications.<\/p>\n
Submersible hydrostatic level transmitter for reliable liquid level measurement in open tanks, channels, dams, wells, and other demanding applications.<\/p>\n
SITRANS P320\/P420 combine high accuracy, fast response and advanced diagnostics with remote access to safety-relevant functions. Users can read values, configure devices, perform maintenance and support SIL workflows from the control room, reducing field visits, downtime and exposure in hazardous areas.<\/p>\n
With proof-test intervals of up to 15 years, guided commissioning and clear diagnostics, these transmitters reduce service effort, downtime and total cost of ownership.<\/p>\n
High accuracy, fast response time and rugged design support stable measurement in chemical, petrochemical and other demanding industries where safety is critical.<\/p>\n
Covers gauge, absolute and differential pressure and supports level, volume flow and mass flow measurement. This flexibility enables you to use one transmitter family across many process tasks.<\/p>\n
Up to 0.065 % for SITRANS P320 and up to 0.04% for SITRANS P420<\/p>\n
From 10 mbar to 700 bar, depending on version and measuring cell<\/p>\n
Response time & long-term stability<\/p>\n
Down to 105 ms and \u2264 0.125 % \/ 5 years<\/p>\n
ATEX, IEC EX, FM, CSA, NEPSI and others<\/p>\n
Safety, diagnostics and operating conditions<\/p>\n
IEC 61508 for SIL2\/3 applications, diagnostics according to NAMUR NE107 and measured medium temperatures \u201340\u00b0 up to +100\u00b0C<\/p>\n
4 to 20 mA with HART, PROFIBUS PA, FOUNDATION Fieldbus<\/p>\n
Remote Safety Handling supports configuration, maintenance and SIL validation remotely from the control room, reducing exposure in hazardous areas and shortening commissioning. Proof-test intervals of up to 15 years help optimize service effort, while easy access to measurement data simplifies operation of pressure and temperature devices without time-consuming field visits.<\/p>\n
SITRANS P420 offers onboard process value storage and trend recording of up to 1,500 measured values. This gives users deeper insight into process behavior and supports optimization and maintenance decisions. It enables better monitoring of trends over time, helps detect deviations early, improves transparency and supports more informed service planning and process optimization across the plant.<\/p>\n
A large display and four buttons enable simple local setup and operation. Diagnostics according to NAMUR NE107 provide clear device status information, helping users identify issues faster and plan maintenance more efficiently. SITRANS IQ Guard adds 24\/7 transparency across process integration, verification, diagnostics and continuous monitoring of field devices and process values.<\/p>\n
The transmitter uses an innovative three-barrier design. If two barriers fail and the sensor is damaged, an alarm is triggered while the third barrier helps prevent gas from escaping. This high protection is designed for hazardous gas applications and helps enhance operational safety for personnel and equipment, even under extreme conditions such as overpressure or corrosion.<\/p>\n
Exact pressure measurements are critical to the entire separation process \u2014 two vessels, called columns, create a pressure difference that causes the nitrogen to separate from the oxygen.<\/p>\n
The SITRANS P320 and P420 are digital pressure transmitters for a wide range of industrial measurement tasks. They measure gauge pressure, absolute pressure, differential pressure, level, volume flow and mass flow in gases, vapors and liquids. Designed for demanding applications, they offer robust materials, a wide operating temperature range and options for different diaphragm materials and remote seals. This makes them a flexible choice for industries such as chemical, petrochemical and environmental applications.<\/p>\n
Both transmitters deliver reliable pressure measurement, easy commissioning and robust performance. The key difference is that the SITRANS P420 offers higher accuracy and additional digital features, including trend recording with storage of up to 1,500 measured values directly in the device. This makes the P420 an especially attractive choice for customers looking for enhanced diagnostics and digitalization capabilities.<\/p>\n
The SITRANS P320 and P420 are designed to simplify setup, operation and maintenance. Features such as guided commissioning, automatic zero-point calibration and Remote Safety Handling help reduce on-site effort and speed up commissioning. In addition, proof test intervals of up to 15 years can help lower maintenance costs and increase plant availability.<\/p>\n
Yes. The SITRANS P320 and P420 are designed for safety-related applications and support SIL 2\/3 requirements, depending on the specific system architecture and application design. A key benefit is Remote Safety Handling via SIMATIC PDM, which enables safety-related functions to be commissioned and validated remotely from the control room. This helps reduce on-site effort, shorten validation time and improve efficiency during commissioning and maintenance.<\/p>\n
Yes. With the new high-end 10 mbar measuring cell, the SITRANS P420 offers a turn-down ratio of 40:1. The smallest available measuring span is 0.25 mbar \/ 25Pa \/ 0.1 inH2O. This makes it especially attractive for applications in the power, glass and chemical industries.<\/p>\n
Yes, the SITRANS P320 and P420 pressure transmitters operate in harsh conditions due to robust materials, covering a wide temperature range from \u201340\u00b0C to +100\u00b0C. The diaphragm is constructed from stainless steel, Hastelloy, tantalum, Monel and gold, serving your most challenging applications.<\/p>\n
Image database | Product photos and drawings<\/p>\n
Online Support | Create a New Support Request<\/p>","protected":false},"excerpt":{"rendered":"
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