Product Critical Technical Advantages
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Engineering excellence in remote architecture separates the sensor from the transmitter, allowing for up to 4 I/Os and high-speed communication in a remote control room or accessible panel. This is critical for high-pressure chemical injection or laboratory rigs where space near the measurement point is extremely limited or subject to harsh conditions.
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Precision engineering for micro-flow sensitivity utilizes a unique single-tube design optimized for DN 1 to 4 (1/24″ to 1/8″) line sizes. This architecture provides the high sensitivity required to capture minute mass flow and density changes, ensuring stable control for the most delicate dosing applications.
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Integration of operational intelligence through Heartbeat Technology provides continuous internal diagnostics and documented verification without process interruption. For micro-flow systems, this is essential for detecting the slightest internal coating or tube wear, ensuring long-term measurement reliability and regulatory compliance.
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Highest product quality through a self-drainable design ensures that no residual fluid remains trapped within the small-bore tubes. This geometry is highly resistant to internal clogging and facilitates rapid cleaning—a vital feature for maintaining high purity standards and preventing localized corrosion in sensitive process lines.
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Advanced digital integration and high-speed data are enabled by the Proline 500 transmitter, which supports up to 4 freely combinable I/Os and modern Ethernet-based protocols. With integrated WLAN access and a built-in web server, operators can configure and monitor the device remotely using any standard web browser.
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Robust high-pressure performance allows the Promass A 500 to operate safely at pressures up to 430.9 bar (6250 psi). The reinforced single-tube sensor remains accurate under intense mechanical stress, providing the multi-variable data (mass, density, temperature) needed for complex high-pressure system control.
Key Device Specifications
| Feature | Specification |
| Nominal Diameter | DN 1 to 4 (1/24″ to 1/8″) |
| Max. Process Pressure | 430.9 bar (6250 psi) |
| Installation Type | Remote version (Sensor separate from Transmitter) |
| Transmitter | Proline 500 with up to 4 I/Os |
| Connectivity | Ethernet/IP, PROFINET, Modbus RS485, WLAN |
| Medium Temperature | Up to +205 °C (+401 °F) |
Field of Application
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Specialty Chemical Dosing: The preferred choice for the continuous delivery of expensive catalysts and reagents in pilot plants or production lines where remote access to data is required.
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High-Pressure Injection: Used in offshore and onshore oil & gas injection skids for inhibitors and methanol, where the transmitter can be mounted away from the high-pressure wellhead equipment.
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Pharmaceutical Manufacturing: Ideal for continuous bioprocessing lines requiring high-pressure micro-metering and a self-draining sensor to maintain aseptic conditions.
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Fuel & Gas Research: Provides the granular data and high-pressure capability needed for testing alternative fuels and high-pressure gas distribution systems.
