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『Biological Reactor Flow Meter: Nutrient and Gas Feed Processing Sensors』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)
Quick Answer: Biological reactors need precise flow metering for liquid nutrients and gas feeds to maintain cell culture health. Silver Automation Instruments offers Coriolis mass flow meters for glucose and media feeds, and thermal mass flow meters for oxygen, CO2, and air sparging. To get a quote that matches your process, send us your required flow range, pressure, temperature, and pipe size.
Biological Reactor Flow Meter: Nutrient and Gas Feed Processing Sensors
Why Coriolis Meters Excel in Nutrient Dosing
Bioreactor nutrient feeds often involve shear-sensitive media with varying viscosity. A positive displacement meter like an oval gear meter can work for diesel but may shear cells. Here is the thing: a Coriolis mass flow meter measures mass directly, independent of fluid viscosity changes. It handles feed rates from 0.5 kg/h up to 500 kg/h on a DN10 or DN15 line. We often ship meters with 316L stainless steel wetted parts and 3-A or EHEDG hygienic connections. A customer in Vietnam producing probiotics switched to our Coriolis meter and eliminated daily recalibration steps. They now log mass flow, density, and temperature on a paperless recorder via 4-20 mA HART.
In practice, engineers skip the density output. But density can signal a wrong concentration or a bubble. So we recommend using it. If your media contains glucose syrup up to 300 cP, the meter handles it without drift. Send us your viscosity (cP), density (kg/m3), flow range, and connection type. We will suggest a direct mass flow solution instead of volume-based devices that need constant density correction.
Thermal Mass Flow Meters for Sparging and Overlay
Aeration control in bioreactors depends on accurate oxygen and CO2 feed measurement. A thermal mass flow meter works well here because it measures gas mass flow at low rates without pressure and temperature compensation. Most engineers trust this technology for cell culture. We have supplied thermal mass flow meters to a vaccine producer in Egypt who needed to measure air at 1 to 30 SLPM with an accuracy of ±1.0% of reading plus ±0.5% full scale. The meter included a PT100 sensor and an IP65 enclosure for washdown areas. They connected it directly to their PLC via 4-20 mA HART and Modbus RTU.
But gas feed can involve CO2 or methane for methanotroph bioreactors. In that case we specify ATEX Zone 2 or Zone 1 approvals. Always tell us the gas type, inlet pressure (bar), and if you need an explosion-proof design. Our thermal mass flow meters come with inline or insertion probe options. For 1/2 inch or DN15 tubing, we select an inli
Pairing Flow Meters with Paperless Recorders and Transmitters
Many bioprocess batches require data logging and validation. Our paperless recorders receive multiple 4-20 mA inputs from flow, pressure, and temperature transmitters. A biopharma plant in South Africa used our recorder to trend nutrient feed flow and dissolved oxygen side by side. This setup simplified FDA audit trails. We can configure the system before shipment and label channels as Glucose Feed, Air Sparge, or Harvest Line.
If you need a complete sensor package, ask us about pressure transmitters for reactor headspace. We offer units with flush diaphragms and EHEDG certificates. The integration is simpler when all instruments come from one supplier. Talk to an application engineer on WhatsApp at 86-135-12131526 or call +86-135-1213-1526. WeChat is +86 13512131526.
Frequently Asked Questions
Q: What flow meter is best for glucose feed in a bioreactor?
A: A Coriolis mass flow meter with DN10 or DN15 size and 316L wetted parts. It measures mass directly, ignoring density shifts from sugar concentration changes. Silver Instruments provides these with 4-20 mA HART and local display.
Q: Can I use one meter for both liquid nutrient and gas feed?
A: No, we recommend separate meters. Liquids use a Coriolis meter, and gases use a thermal mass flow meter. The internal geometry and sensor technology differ. But we can supply both from the same source.
Q: What certifications do bioreactor flow sensors need?
A: For hygienic use, 3-A or EHEDG certificates, FDA-compliant seals. For gas feed with flammable mixtures, ATEX or IECEx. Our team helps you select the right certification for your country. Mention your local standards when you request a quote.
Q: How do I measure very low oxygen flow rates?
A: A thermal mass flow meter handles 0.5 to 20 SLPM easily. Specify the minimum and maximum flow rates; we size the sensor accordingly. For even lower flows, we can offer a special low-flow calibration.
Q: Do you offer meters with digital communication for SCADA?
A: Yes. All Silver Instruments flow meters output 4-20 mA with HART, plus optional Modbus RTU, Profibus DP, or Ethernet/IP. Tell us your control system brand.
Send your nutrient and gas feed specifications now. Include pressure (bar), temperature (°C), pipe size (DN), and flow range. Contact Silver Automation Instruments at Tel +86-135-1213-1526, WhatsApp 86-135-12131526, or WeChat +86 13512131526. We respond within one business day.