Key Benefits and Advantages
Cost-Effective Performance: The STR700 series offers a reference accuracy of up to 0.065% of span. It provides a perfect balance of advanced features and value for applications that require remote seals but do not need the ultra-high precision of the ST800 series.
Superior Thermal Compensation: Remote seal systems often suffer from measurement drift caused by temperature changes in the capillaries. The STR700 is characterized for temperature effects at the factory, allowing it to dynamically compensate for environmental fluctuations and maintain a stable output.
Robust Capillary Protection: To ensure the integrity of the fill fluid in demanding industrial areas, Honeywell provides multiple armor options. You can choose between stainless steel armor or PVC-coated stainless steel armor to protect the capillaries from mechanical impact and chemical attack.
Modular Construction: Like all SmartLine transmitters, the STR700 features a modular design. The electronics module and display are interchangeable, allowing for simplified repairs and the ability to change communication protocols (e.g., from 4-20mA to HART) in the field without disturbing the process connections.
All-Welded Meter Body: The transmitter utilizes an all-welded meter body design. This construction eliminates potential leak paths and enhances the performance of the system in vacuum applications, ensuring a long and maintenance-free service life.
SIL 2/3 Certified: As a standard feature, the STR700 is certified for use in Safety Instrumented Systems (SIS), providing the reliability required for critical level monitoring and overfill prevention.
Comprehensive Seal and Connection Options
The STR700 can be configured with a wide variety of process interfaces to suit any application:
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Flush flange and Extended diaphragm seals: Standard for tank level measurement.
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Pancake and Saddle seals: For mounting in tight spaces or directly on pipes.
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Sanitary seals: Designed for the pharmaceutical and food industries (CIP/SIP capable).
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Chemical Tee / Taylor Wedge: Specialized for highly viscous chemical processing.
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Threaded connections and Calibration rings: For flexible installation and easy zero-checks.
Technical Properties
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Measurement Type: Differential, Gauge, or Absolute pressure.
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Reference Accuracy: 0.065% of span.
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Stability: 0.02% of URL per year for 5 years.
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Turndown Ratio: Up to 100:1.
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Communication: HART 7, DE, FOUNDATION Fieldbus, or PROFIBUS PA.
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Enclosure: IP66/67 and NEMA 4X.
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Materials: 316L SS, Hastelloy C-276, and Tantalum options.
Field of Application
The STR700 is the ideal choice for challenging process environments across multiple industries.
Primary Industries and Uses:
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Chemical & Petrochemical: Level measurement in tanks containing aggressive acids or polymers.
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Food and Beverage: Hygienic pressure monitoring in brewing and dairy production.
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Oil and Gas: Monitoring separator levels where the process fluid is prone to clogging.
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Pharmaceutical: Precise volume tracking in aseptic fermentation and storage vessels.
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Power Generation: Measuring water and steam pressure in high-temperature utility loops.
