Pressure Transmitter STA800 Absolute Pressure Transmitter For Highest Demands
STA800 Absolute Pressure Transmitter – For Highest Demands The STA800 Absolute Pressure Transmitter is engineered to deliver exceptional accuracy, stability, and reliability in the most demanding industrial environments. Built with advanced sensor technology and robust stainless-steel construction, it ensures precise measurement of absolute pressure across a wide range of applications. With its high-performance design, digital communication capabilities, and proven durability, the STA800 sets the benchmark for safety, efficiency, and long-term operational excellence.
| Feature / Model | STA800 (High-Performance) | STA80L (Lightweight / Compact) | ST700 (Mid-Performance) | ST3000 (Legacy Series) |
| Accuracy | ±0.0375% of span (high accuracy) | ±0.065% of span | ±0.05% of span | ±0.075% of span |
| Stability | 0.01% URL per year for 15 years | 0.02% URL per year for 10 years | 0.02% URL per year for 10 years | 0.02% URL per year for 5 years |
| Rangeability | Up to 100:1 | Up to 50:1 | Up to 50:1 | Up to 50:1 |
| Response Time | As fast as 80 ms | ~100 ms | ~100 ms | ~120 ms |
| Housing Options | Aluminum (NEMA 4X, IP66/67, explosion-proof), optional SS | Aluminum or SS | Aluminum | Aluminum |
| Wetted Materials | 316 SS, Monel®, Hastelloy® C-276 | 316 SS | 316 SS | 316 SS |
| Weight | ~3.8 kg (8.3 lbs) | ~1.6 kg (3.6 lbs) | ~3.5 kg | ~3.5 kg |
| Display | Advanced graphics LCD (multi-language) | Basic LCD | Basic LCD | Basic LCD |
| Diagnostics | Plugged Impulse Line Detection (PILD), SIL 2/3 certified | Limited | Basic | Basic |
| Communication Protocols | 4–20 mA, HART 7.0, DE, FOUNDATION Fieldbus | 4–20 mA, HART | 4–20 mA, HART | 4–20 mA, HART |
| Best Use Case | Critical, high-demand applications (refineries, power plants, pharma) | Space-limited or lightweight installations | General industrial use | Installed base/legacy systems |
Applications of the STA800 Absolute Pressure Transmitter (English)
- Oil & Gas Industry Precise monitoring of absolute pressure in upstream, midstream, and downstream operations, ensuring safety and efficiency in pipelines, refineries, and offshore platforms.
- Power Generation Reliable measurement in boilers, turbines, and steam systems where high accuracy and long-term stability are critical.
- Pharmaceutical & Biotechnology Supports sterile and high-purity processes by delivering accurate pressure data for cleanroom environments and production lines.
- Chemical & Petrochemical Plants handle aggressive media with corrosion-resistant materials, ensuring accurate control in reactors, separators, and storage tanks.
- Water & Wastewater Treatment Provides dependable pressure measurement for filtration, pumping, and distribution systems.
- Aerospace & Research Facilities Used in test benches, vacuum systems, and experimental setups requiring an absolute pressure reference.
FAQ – STA800 Absolute Pressure Transmitter
Q1. What is the STA800 Absolute Pressure Transmitter used for?
The STA800 is designed for high-accuracy measurement of absolute pressure in demanding industrial environments such as oil & gas, power generation, chemical processing, and pharmaceuticals.
Q2. How accurate is the STA800?
It offers up to ±0.0375% of span accuracy, making it one of the most precise transmitters in its class.
Q3. What is the difference between absolute and gauge pressure transmitters?
- Absolute pressure is measured relative to a perfect vacuum (zero reference).
- Gauge pressure is measured relative to atmospheric pressure. The STA800 is an absolute pressure transmitter, ideal for applications where atmospheric variations must not affect readings.
Q4. What communication protocols are supported?
The STA800 supports 4–20 mA, HART 7.0, DE, and FOUNDATION Fieldbus, ensuring compatibility with modern control systems.
Q5. What materials are available for wetted parts?
Standard options include 316 Stainless Steel, Monel®, and Hastelloy® C-276, suitable for corrosive or aggressive process media.
Q6. How reliable is the STA800 over time?
It provides long-term stability of 0.01% URL per year for up to 15 years, reducing recalibration needs and lifecycle costs.
Q7. Is the STA800 certified for safety applications?
Yes. It is SIL 2/3 certified for use in safety instrumented systems (SIS).
Q8. What display options are available?
It features an advanced graphics LCD, supporting multi-language menus and field diagnostics.
Q9. Can the STA800 detect plugged impulse lines?
Yes. It includes Plugged Impulse Line Detection (PILD) to improve safety and reduce downtime.
Q10. What industries benefit most from the STA800?
- Oil & Gas (refineries, pipelines, offshore)
- Power Generation (boilers, turbines, steam systems)
- Chemical & Petrochemical (reactors, separators)
- Pharmaceuticals & Biotechnology (sterile processes)
- Water & Wastewater (filtration, pumping systems)
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