Critical Technical Advantages
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Multivariable Measurement: The E 100 measures both volume flow and temperature ($150$ °C max) simultaneously. This allows for the calculation of mass flow or heat energy within the device, reducing the number of process penetrations and lowering the total cost of ownership for utility monitoring.
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High Turndown Ratio ($200:1$): Boilers and utility systems often experience significant seasonal or operational load changes. The massive turndown ratio ensures that the device remains accurate during low-flow standby periods as well as during peak demand.
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Conductivity Independence: Unlike electromagnetic flowmeters, the ultrasonic transit-time principle is completely independent of the liquid’s conductivity. This is essential for demineralized water and high-purity condensate, which have zero or near-zero conductivity.
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Heartbeat Technology: This integrated suite allows for continuous self-monitoring and traceable verification of the device’s health. By providing documented proof of sensor performance without process interruption, it allows plants to safely extend recalibration cycles.
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Integrated Web Server: The device can be accessed directly via a standard web browser through its service interface. This enables technicians to perform commissioning, configuration, and diagnostics without needing proprietary software or specialized handheld terminals.
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Robust Stainless Steel Design: To withstand the humid and often corrosive atmosphere of boiler rooms, the entire meter housing is constructed from stainless steel. This ensures long-term external durability alongside its internal sensor stability.
Detailed Technical Performance Matrix
| Specification | Technical Details and Ranges |
| Measured Variables | Volume flow, temperature, sound velocity |
| Calculated Variables | Mass flow, heat flow, heat flow difference |
| Flow Accuracy | Up to ±0.5% (o.r.) |
| Temperature Accuracy | ±2.0 °C (±3.6 °F) / According to EN 1434 Cl. 2 |
| Process Temperature | Up to +150 °C (+302 °F) |
| Max. Pressure | PN 25 / ASME Class 150 |
| Nominal Diameter | DN 50 to 150 (2″ to 6″) |
| Communication | 4-20 mA HART, Pulse/Frequency/Switch output |
Primary Applications
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Boiler Condensate Return: Monitoring the volume and temperature of returned water to optimize boiler feed efficiency and identify steam trap failures.
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Demineralized Water Distribution: Precise measurement of high-purity water for industrial processes where conductivity is too low for Magmeters.
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Heat Exchanger Monitoring: Using the integrated temperature and flow data to calculate thermal transfer efficiency.
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Utility Billing: Economical flow measurement for internal cost allocation of water and energy between different plant departments.
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Pump Protection: Detecting low-flow or dry-run conditions in high-temperature utility pumps.
