Key Benefits and Advantages
Versatile Seal Selection: The STR800 supports a vast array of seal types to match specific process requirements. From flush flange seals for standard tanks to sanitary seals for pharmaceutical grade clean-in-place (CIP) environments, the system is engineered for maximum application flexibility.
Enhanced Capillary Durability: To protect the critical fill fluid and ensure long-term reliability, the STR800 offers ruggedized capillary protection. Options include stainless steel armor and PVC-coated stainless steel armor, preventing mechanical damage and environmental corrosion in harsh field conditions.
Exceptional Thermal Stability: Remote seal systems are notoriously sensitive to temperature fluctuations in the capillaries. The STR800 utilizes advanced compensation algorithms to account for density changes in the fill fluid, ensuring that your level or pressure reading remains accurate even as ambient temperatures change throughout the day.
All-Welded Meter Body: The transmitter features a welded meter body design, which minimizes potential leak points and enhances the vacuum rating of the assembly. This is particularly critical for vacuum distillation applications where air ingress must be prevented at all costs.
Modular Architecture: Consistent with the SmartLine family, the STR800 electronics and display are modular. You can replace the communication module or upgrade the display in the field without disturbing the delicate capillary system or the process connections.
Integrated Diagnostics: The transmitter monitors the health of the remote seal system. It can detect issues such as a ruptured diaphragm or a significant loss of fill fluid, providing maintenance alerts before the measurement fails completely.
Available Seal and Connection Options
The STR800 can be configured with a wide variety of process interfaces:
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Flush flange and Extended diaphragm seals: For standard and insulated tanks.
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Pancake and Saddle seals: For space-constrained or pipe-mounting applications.
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Sanitary seals: Meets 3A and EHEDG standards for food and pharma.
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Chemical Tee / Taylor Wedge: Specialized connections for highly viscous chemical flows.
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Threaded connections and Calibration rings: For easy maintenance and verification.
Technical Properties
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Measurement Type: Differential, Gauge, or Absolute pressure via remote seals.
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Reference Accuracy: Up to 0.065% of span.
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Capillary Protection: Stainless steel armor / PVC-coated armor.
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Fill Fluids: Silicone, Fluorinated, or Food-grade oils.
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Communication: HART 7, FOUNDATION Fieldbus, or PROFIBUS PA.
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Safety: SIL 2/3 certified as a standard feature.
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Enclosure: IP66/67 and NEMA 4X.
Field of Application
The STR800 is the preferred solution for the most difficult pressure measurement challenges.
Primary Industries and Uses:
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High-Temperature Processes: Measuring fluids up to 600°F (315°C) by isolating the electronics.
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Corrosive Chemicals: Using Tantalum or Hastelloy diaphragms to measure aggressive acids.
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Viscous Media: Measuring levels in tars, polymers, or syrups that would clog standard impulse lines.
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Sanitary Processing: Level and pressure control in aseptic food or drug manufacturing.
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Vacuum Applications: High-performance vacuum distillation and evaporator monitoring.
