Key Benefits and Advantages
Dual Head Versatility: The Dual Head configuration is designed for applications requiring a 1/2-inch NPT connection or a small flange. This design is particularly effective for level applications in vented tanks where temperatures reach up to 302°F (150°C). The dual-head architecture allows for easy mounting to manifold blocks and simplifies maintenance in the field.
Rugged In-Line Design: The In-Line model is designed to be screwed directly onto a 1/2-inch male NPT nipple. This compact and lightweight form factor is ideal for high-pressure measurements in petrochemical and hydrocarbon recovery industries. It is built to withstand hazardous environments while providing highly repeatable measurements in fuel feeds and boilers.
Modular and Field-Upgradable: The STG800 series features a modular architecture where the display, communication module, and electronics can be swapped out in the field. This “plug-and-play” capability allows users to upgrade a standard 4-20 mA transmitter to HART, Foundation Fieldbus, or Profibus without removing the sensor from the process.
Advanced Graphics and Local Control: The optional advanced graphics LCD allows operators to view trend charts and bar graphs directly at the transmitter. Three external buttons enable full configuration in the field—even in hazardous areas—without opening the enclosure or using a handheld communicator.
Total Performance and Stability: The STG800 offers a reference accuracy of up to 0.0375% of span and a stability of 0.01% per year for ten years. Integrated temperature compensation ensures that the pressure reading remains accurate despite swings in ambient temperature or process heat.
Technical Properties
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Measurement Type: Gauge Pressure (Relative to atmosphere).
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Reference Accuracy: Up to 0.0375% of span.
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Stability: 0.01% of URL per year for 10 years.
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Turndown Ratio: Up to 400:1.
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Temperature Limits: Process temperatures up to 302°F (150°C).
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Communication: HART 7, DE, FOUNDATION Fieldbus, or PROFIBUS PA.
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Enclosure Rating: IP66/67 and NEMA 4X.
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Safety: SIL 2/3 certified as standard.
Field of Application
The STG800 is a versatile workhorse for almost any industrial pressure monitoring task.
Primary Industries and Uses:
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Chemical Industry: Gauge pressure measurement in reaction vessels and low-pressure storage.
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Petrochemical: High-pressure measurement for hydrocarbon recovery and processing units.
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Power Generation: Monitoring fuel feed pressure and high-pressure steam in boilers.
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Hydrostatic Level: Used in Dual Head configuration for measuring the level of atmospheric (vented) tanks.
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Oil and Gas: Reliable pressure monitoring at wellheads and in distribution pipelines.
