Product Critical Technical Advantages
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Engineering excellence in loop-powered technology enables the Promass E 200 to operate on a 2-wire system without compromising measurement integrity. This genuine loop-powered design significantly reduces installation costs and power consumption, making it an excellent alternative to traditional volumetric meters in legacy infrastructures.
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Precision engineering for hazardous area safety is anchored by an intrinsically safe design (Ex ia). Combined with worldwide plant safety approvals (SIL, Haz. Area), the E 200 ensures highest operational security in volatile environments, allowing for accurate measurement of liquids and gases where explosive risks are present.
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Integration of operational intelligence through Heartbeat Technology provides a continuous health check of the measuring tubes and electronics. This internal verification can be performed without process interruption, ensuring that the meter remains compliant with safety standards and allowing for the safe extension of recalibration intervals.
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Robust dual-compartment housing with touch control ensures that operators can interact with the device—configuring settings or viewing diagnostics—without ever opening the housing. This “closed-box” operation is a critical safety feature in hazardous zones and protects the electronics from corrosive ambient conditions.
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Flexible multivariable measurement reduces the number of process measuring points by delivering mass flow, volume flow, density, and temperature through a single device. This consolidation minimizes pipe penetrations and potential leak points, enhancing overall plant integrity and reducing maintenance requirements.
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Space-saving installation is achieved through a compact dual-tube sensor design that requires no straight inlet or outlet piping runs. This allows the Promass E 200 to be installed immediately after elbows or valves, providing ultimate flexibility in dense chemical processing plants.
Key Device Specifications
| Feature | Specification |
| Nominal Diameter | DN 8 to 80 (3/8 to 3″) |
| Power Supply | Loop-powered (2-wire) technology |
| Max. Process Pressure | 100 bar (1450 psi) |
| Medium Temperature | Up to +150 °C (+302 °F) |
| Safety Integrity Level | SIL 2 (single device), SIL 3 (redundant) |
| Hazardous Area Protection | Intrinsically Safe (Ex ia / IS) |
Field of Application
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Chemical Industry: The primary choice for the accurate mass balancing and transfer of non-aggressive chemicals and solvents in areas requiring high safety ratings.
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Industrial Utilities: A cost-effective solution for monitoring steam condensate, demineralized water, and fuel oil consumption across large facilities using existing 2-wire loops.
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Tank Farm Management: Ideal for inventory control and product loading where the combination of high accuracy and hazardous area compliance is non-negotiable.
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Solvent Recovery: Used to monitor the flow and density of solvents during recovery processes, ensuring efficiency and consistency in chemical recycling.




