E+H Proline t-mass F/I 300/500 Thermal Mass Flowmeter Overview
The E+H Proline t-mass F/I 300/500 series (models include 6I3B/5F3B/6I5B/6F5B) is a new generation of thermal mass flowmeters, designed specifically for utility gas measurement. This series responds sensitively to gas flow changes and can directly output mass flow without additional temperature and pressure compensation.
Core Working Principle
Thermal mass flowmeters operate based on the thermal dispersion principle. The temperature difference between the sensor's heating element and temperature sensor changes with the gas mass flow rate. By measuring the heating power or temperature difference, the mass flow rate can be directly obtained.
Technical Features
- Direct mass flow measurement: No temperature and pressure compensation required, simplifying system configuration.
- Wide turndown ratio: Suitable for low and high flow velocity applications, with a typical turndown ratio of up to 100:1.
- Low pressure loss: Insertion or flange design, minimal pressure loss, significant energy savings.
- Sensitive response: Rapid response to gas composition changes and flow fluctuations.
Model and Configuration Description
The Proline t-mass series offers various process connections and sensor types to meet different pipe diameters and installation conditions. Below is a comparison of common models.
| Model | Sensor Type | Applicable Pipe Diameter | Typical Application |
|---|---|---|---|
| 6I3B | Insertion | DN80~DN2000 | Utility gas, compressed air |
| 5F3B | Flanged | DN15~DN300 | Small pipe diameter gas metering |
| 6I5B | Insertion (high precision) | DN80~DN2000 | Custody transfer, process control |
| 6F5B | Flanged (high precision) | DN15~DN300 | High-demand gas measurement |
Selection Points
When selecting a thermal mass flowmeter, comprehensive consideration must be given to gas type, flow range, pipe diameter, accuracy requirements, and installation environment.
Selection Steps
- Confirm the measured gas composition and operating conditions (temperature, pressure).
- Choose insertion or flanged type based on pipe diameter and flow range.
- Select standard or high-precision type (300/500 series) based on accuracy requirements.
- Verify process connections, materials, and explosion-proof certifications.
- Confirm output signals and communication protocols (4-20mA, HART, Modbus, etc.).
Key Parameter Reference
- Accuracy: Standard type ±1.5% o.r., high-precision type ±1.0% o.r.
- Repeatability: ±0.5% o.r.
- Medium temperature: -40~+200°C (depending on model).
- Protection class: IP66/IP67, optional IP68.
Typical Application Scenarios
This series of flowmeters is widely used in utility gas metering, such as natural gas, compressed air, nitrogen, carbon dioxide, etc.
- Compressed air metering: Monitor energy consumption, optimize air compressor operation.
- Natural gas distribution: Custody transfer and process monitoring.
- Industrial gases: Flow measurement of nitrogen, argon, carbon dioxide, etc.
- Biogas: Renewable energy metering.
Summary
The E+H Proline t-mass F/I 300/500 series thermal mass flowmeters, with direct mass flow measurement, wide turndown ratio, and sensitive response, are ideal choices for utility gas measurement. Correct selection ensures long-term stable operation and accurate measurement.