Uses minimum bench space
Bidirectional Microfluidic Flow Sensor
- Best Seller
FLOW UNIT | FLOW UNIT +
The FLOW UNIT and FLOW UNIT+ are bidirectional microfluidic flow sensors compatible for stand-alone use with the Line Up™ controller or other microfluidic control systems such as the MFCS™ series using the Flowboard hub.
Available in multiple low rate ranges, the FLOW UNIT and FLOW UNIT + Microfluidic Flow Sensor allows for pressure regulation using the DFC (Direct Flow Control) algorithm to monitor or control the system by flowrate instead of pressure.
- Compact
- Adaptable
Use with or without a PC
- Intuitive
Straight forward set up & use
- Wide range
Measurement from nL to mL
Features of Flow Unit Microfluidic Flow Sensor
Tune Measurements for Various Liquids
When combined with a FLOW UNIT, a scale factor can be added to your measurements when handling other fluids than the liquid for which the flow sensor is calibrated for.
For organic solutions, a second calibration with isopropyl alcohol is built-in on the FLOW UNIT models S, M+ and L+.
Flow Rate Measurement
Fluigent’s Microfluidic Flow Sensor is a unique tool to easily monitor flow rates in any microfluidic system with the best precision and accuracy. A microheater provides a minimal amount of heat to the medium monitored. Two temperature sensors, located on both sides of the heat source, detect temperature variation. The high precision thermal sensor technology provides total media isolation and very low internal volume with no moving parts. The flowrate is then calculated based on the thermal desorption, which is directly related to the flowrate.
The FlOW UNIT and FLOW UNIT+ enable fast and accurate measurements of ultra-low liquid flow rates.
Monitor & Control Experiments
Flowrate measurements (bidirectional) for all FLOW UNITs are displayed in FLUIGENT software. An additional function displays and records the dispensed volume for each FLOW UNIT Microfluidic Flow Sensor. Flowrates can be directly controlled with the MFCS™ series and LineUp™ series instruments using the DFC, a “self-learning” flow rate control algorithm.
Precision for Various Flow Rate Ranges
The different FLOW UNIT models offer an extensive choice of flowrate ranges to best match your needs over the range of 7nL/min to 5mL/min.
Locally Control Flow Rate
Combined with a LineUp™ Push-Pull or a LineUp Flow EZ™, one can monitor or control flow rate without a PC.
Easily monitor and control flow rates
Fluigent’s Microfluidic Flow Sensor is a unique tool to easily monitor flow rates in any microfluidic system with the best precision and accuracy. A microheater provides a minimal amount of heat to the medium monitored. Two temperature sensors, located on both sides of the heat source, detect temperature variation. The high precision thermal sensor technology provides total media isolation and very low internal volume with no moving parts. The flow rate is then calculated based on the thermal desorption, which is directly related to the flow rate.
Specifications
Sensor performance
Sensor model | XS | S | M+ | L+ |
Part Number | FLU-XS | FLU-S-D | FLU-M+ | FLU-L+ |
Calibrated media | Water | Water IPA | Water IPA | Water IPA |
Range | 0±1.5µL/min | 0±7µL/min 0±70µL/min | 0±2mL/min | 0±40mL/min |
Accuracy (m.v.= measured value) also applies to negative values | Water 10% m.v. above 75 nL/min 7.5 nL/min below 75 nL/min | Water 5% m.v. above 0.42 µL/min 21 nL/min below 0.42 µL/min IPA 20% m.v. above 4.2 µL/min 210 nL/min below 4.2 µL/min | Water 5% m.v. above 10 µL/min 0.5 µL/min below 10 µL/min IPA 10% m.v. above 50 µL/min 5 µL/min below 50 µL/min | Water 5% m.v. above 1 mL/min 50 µL/min below 1 mL/min IPA 10% m.v. above 2 mL/min 200 µL/min below 2 mL/min |
Lowest detectable flow increment | 3.7 nL/min | 10 nL/min | 0.25 µL/min | 25 µL/min |
Repeatability | Water <1% m.v. above 90 nL/ min 0.9 nL/min below 90 nL/min | Water 0.5% m.v. above 0.7 μL/ min 3.5 nL/min below 0.7 μL/ min IPA 1% m.v. above 0.7 μL/ min 7 nL/min below 0.7 μL/ min | At 23°C Water & IPA 0.5% mv above 100μL- min 0.5μL/min below 100μL/ min | At 23°C Water & IPA 0.5% mv above 2mL/ min 10μL/min below 2mL/ min |
Mechanical specifications
Sensor model | XS | S | M+ | L+ |
Sensor diameter | 25 µm | 150 µm | 400 µm | 1.4 mm |
Maximum pressure | 200 bar | 200 bar | 100 bar | 15 bar |
Wetted materials | PEEK & Quartz Glass | PEEK & Quartz Glass | PPS, stainless steel 316L Fittings: PEEK/ ETFE | PPS, stainless steel 316L Fittings: PEEK/ ETFE |
Inner volume | 1µL | 1.5µL | ~ 28µL | ~ 58µL |
Fluid connector ports | UNF 6-40 for 1/32” OD tubing | UNF 6-40 for 1/32” OD tubing | UNF 1⁄4′′-28 flat bottom for 1/16” OD tubing | UNF 1⁄4′′-28 flat bottom for 1/16” OD tubing |
Weight | 97 g | 97 g | 97 g | 97 g |
Sensor performance
Sensor model | XS | S | M | L | XL |
Part Number | FLU-XS | FLU-S-D | FLU-M-D | FLU-L-D | FLU-XL |
Calibrated media | Water | Water IPA | Water IPA | Water IPA | Water |
Range | 0±1.5µL/min | Water:0±7 µL/min IPA: 0±70 µL/min | Water: 0±80µL/min IPA: 0±500µL/min | Water: 0±1mL/min IPA: 0±10mL/min | 0±5mL/min |
Accuracy (m.v.= measured value) also applies to negative values | 10% m.v. above 75 nL/ min 7.5 nL/min below 75 nL/ min | Water 5% m.v.above 0.42 µL/min 21 nL/min below 0.42 µL/min IPA 20% m.v. above 4.2 µL/min 210 nL/min below 4.2 µL/min | Water 5% m.v. above 2.4 µL/min 0.12 µL/min below 2.4 µL/min IPA 20% m.v. above 25 µL/min 5 µL/min below 25 µL/min | Water 5% m.v. above 0.04 mL/min 1.5 µL/min below 0.04 mL/min IPA 20% m.v. above 0.5 mL/min 100 µL/min below 0.5 mL/min | 5% m.v.above 0.2 mL/min 10 µL/min below 0.2 mL/min |
Lowest detectable flow increment | 3.7 nL/min | 10 nL/min | 0.06 µL/min | 0.7 µL/min | 3 µL/min |
Mechanical specifications
Sensor model | XS | S | M | L | XL |
Sensor diameter | 25µm | 150 µm | 430 µm | 1.0 mm | 1.8 mm |
Maximum pressure | 200 bar | 200 bar | 100 bar | 12 bar | 5 bar |
Wetted materials | PEEK and Quartz Glass | PEEK and Quartz Glass | PEEK and Borosilicate Glass | PEEK and Borosilicate Glass | PEEK and Borosilicate |
Fluid connector ports | UNF 6-40 for 1/32” OD tubing | UNF 6-40 for 1/32” OD tubing | UNF 6-40 for 1/32” OD tubing | Flangeless fitting 1/4-28 | Flangeless fitting 1/4-28 |
Weight | 97 g | 97 g | 97 g | 97 g | 97 g |
OxyGEN
Control in real-time, protocol automation, data record and export |
ver. 1.0.0.0 or more recent |
Software Development Kit
Custom software application |
ver. 21.0.0.0 or more recent |
Expertise & resources
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Microfluidics case studies CNRS/UTC: study of a liver-on-a-chip model Read more
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User manuals Fluigent Flow-Rate Platform User Manual Download
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User manuals Flow-Rate Platform and FLOW UNIT+ User Manual Download
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Technical datasheets FLOW UNIT+ Datasheet Download
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Microfluidics case studies University of Cambridge: Giant unilamellar vesicle production and testing Read more
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Microfluidic Application Notes Production of water-in-oil emulsions using a droplet generator chip Read more
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Technical datasheets FLOW UNIT Datasheet Download
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Expert Reviews: Basics of Microfluidics Biomechanics Read more
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Expert Reviews: Basics of Microfluidics Droplet generation using syringe pumps and pressure-based flow controllers Read more
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Microfluidics case studies University of Maryland: A soft robotic hand with integrated fluidic circuitry that can play Nintendo Read more