Fermentation Liquid Flow Measurement with Magnetic Flow Meters
Accurate, reliable flow measurement for fermented conductive liquids
What is Fermented Liquid?
Fermentation liquid is a conductive fluid containing microorganisms, nutrients, and metabolic products generated during the fermentation process. Fermented liquid is widely used in industries such as pharmaceuticals, food and beverages, and bioengineering.
Why Measure Fermented Liquid Flow?
Measuring fermentation liquid flow rate and total flow is essential for process control, ensuring optimal microbial growth, maintaining production efficiency, and improving product consistency. Accurate flow measurement of fermented liquid helps regulate nutrient supply, monitor yield, and enhance process automation.
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How to Measure Fermentation Liquid?
Electromagnetic flowmeters (magmeters) are ideal for measuring fermented liquids because they offer accurate, reliable, and full-bore liquid flow measurement. They work well with conductive fermentation water, and provide stable readings without pressure loss or moving parts that could be affected by micro solid contents in the fluid.
Electromagnetic flowmeter designed specifically for fermentation processes
What are Advantages of Using Electromagnetic Flowmeters for Fermented Liquid?
- High Accuracy – Magmeters provide precise measurements with minimal deviation, the accuracy can reach to 0.2~0.5% of reading, crucial for process control.
- No Moving Parts – Magnetic flow sensor does not have any movable sensor parts, which reduces wear of flow sensor and maintenance, increasing operational longevity.
- No Pressure Loss – Since magmeters have a non-obstructive and full-bore flow sensor design, they do not create pressure drops, maintaining fluid integrity.
- Wide Range of Applications – Suitable for various viscosities, densities, and solid contents in fermentation liquids.
- Corrosion and Contamination Resistance – Fermentation liquid may contain lactic acid, acetic acid, and citric acid, as well as some alkaline substances, chlorides, and sulfates. Additionally, certain microorganisms may produce corrosive substances, making the fermentation liquid somewhat corrosive. Therefore, corrosion-resistant flow meters are needed for fermented liquid measurement.
With proper lining materials (e.g., PTFE, Teflon, PFA), magmeters withstand aggressive or high-temperature fermentation liquids, we also choose tantalum electrodes material as wet parts material for fermented liquid.
- Hygienic Design – Can be manufactured with sanitary connections and materials to meet strict hygiene standards.
Sanitary electromagnetic flowmeter with hygienic connections for fermentation applications
Considerations When Using Electromagnetic Flowmeters for Fermentation Liquid
- Conductivity Requirement: Fermentation liquids must have sufficient conductivity (>5 μS/cm) for accurate measurement.
- Proper Lining Selection: Choose PTFE or PFA for chemical resistance and easy cleaning.
- Electrode Material: Tantalum is preferred to resist corrosion.
- Bubble-Free Operation: During the measurement process, ensure that the fermentation liquid is free of bubbles. Electromagnetic flow meters cannot measure liquids with bubbles, as this will affect measurement accuracy and results.
- Installation Position: Ensure full pipe conditions to prevent measurement errors.
- Cleaning and Maintenance: Regular cleaning is necessary, especially in hygienic applications.
Proper installation ensures accurate measurement of fermentation liquid flow
Technical Parameters of Electromagnetic Flowmeters for Fermentation Liquid
Flow Range: 0.1 to 10 m/s of fermented flow
- 1" flow sensor: 500-12000 LPH
- 2" fermented liquid: 50-1000 LPM
- 3" formation liquid: 9-180 m³/h
Accuracy: ±0.2-0.5% of reading
Nominal Diameter: DN10 to DN1000
Customers prefer 1", 2", 3" or DN100 fermented flow meters
Conductivity Requirement: >5 μS/cm
Temperature Range: -20°C to 150°C
Depending on lining material
Pressure Rating: Up to 4.0 MPa
Output Signal: 4-20 mA, Pulse, RS485 Modbus, Profibus-DP
Power Supply: 220V AC, 24V DC, or battery operated
Protection Class: IP65, IP67, or IP68
IP68 for submersible applications
Conclusion
Electromagnetic flowmeters are a reliable solution for fermentation liquid flow measurement due to their accuracy, durability, and suitability for conductive fluids. By selecting the appropriate materials and ensuring proper installation, industries can achieve precise flow monitoring, optimizing fermentation processes and improving overall efficiency.
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