Key Benefits and Advantages
Advanced Real-Time Mass Flow Calculation: The EJX930A is more than a sensor; it is an intelligent flow computer. In its mass flow version, it performs continuous compensation for density, viscosity, and Reynolds number fluctuations. This results in a ±1.0% mass flow rate accuracy even when using uncalibrated orifice plates, ensuring precision in steam, gas, and liquid custody transfer or balancing.
Comprehensive Triple-Variable Sensing: For users focused on raw data acquisition, the multi-sensing version delivers elite performance across three critical metrics. It provides ±0.04% differential pressure accuracy, ±0.1% static pressure accuracy, and ±0.9°F external temperature accuracy. This consolidated approach reduces process penetrations and potential leak points by replacing three separate transmitters with one.
Universal Primary Device Compatibility: The EJX930A is designed to work with your existing infrastructure. It supports standard primary devices like Orifices, Nozzles, and Venturis. For systems using the HART 7 protocol, support extends to advanced meters such as Multiport Averaging Pitot tubes and Cone meters, providing maximum flexibility for diverse piping configurations.
Integrated Totalization and Pulse Output: To facilitate local batching and energy management, the EJX930A includes a built-in mass flow totalizer with ±1.0% accuracy. The available pulse and contact outputs allow the transmitter to trigger external alarms or communicate directly with flow counters, streamlining the integration into your control architecture.
SIL 2/3 Certified Process Safety: Safety is never an option with the EJX series. The EJX930A is TUV SIL 2/3 certified, making it a trusted component for Safety Instrumented Systems (SIS). Its robust digital sensor technology ensures that measurement integrity is maintained even in high-vibration or high-static pressure environments.
Reduced Total Cost of Ownership (TCO): By consolidating multiple measurements into a single device, you significantly reduce engineering, installation, and maintenance costs. Fewer devices mean fewer spare parts to stock and fewer impulse lines to maintain, all while gaining deeper insight into process health through advanced diagnostics.
Technical Properties
Operation: Multivariable sensing using DPharp silicon resonant technology.
Mass Flow Accuracy: ±1.0% of flow rate (with uncalibrated differential producer).
Differential Pressure Accuracy: ±0.04% of span.
Static Pressure Accuracy: ±0.1% of span.
Temperature Input: RTD (Pt100) input for external process temperature sensing.
Response Time: 90 ms for pressure variables.
Safety Rating: TUV SIL 2 / SIL 3 Certified.
Communication: HART 5/7, FOUNDATION Fieldbus, or RS485 Modbus options.
Field of Application
The EJX930A is the premier choice for applications where mass flow precision and minimized installation complexity are paramount.
Primary Industries and Uses:
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Power Generation: Main steam and feedwater mass flow measurement for heat balance and boiler efficiency optimization.
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Oil and Gas: Integrated measurement for gas production wells and separators where static pressure varies significantly.
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Chemical and Refining: Accurate mass flow for high-value chemical feedstocks and volatile organic compounds (VOCs).
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District Heating: High-precision energy billing for steam and hot water distribution networks.
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Mining and Metals: Monitoring compressed air and industrial gas consumption across large-scale facilities.
