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Low Flow, High Pressure
Liquid Control
Bronkhorst designed the new LIQUI-FLOW mini Mass Flow Meter for liquids according to the concept of microfluidics.
 The use of microfluidic devices for research and analytical purposes has some important advantages. Firstly, because the internal volumes within the instruments are very small, the analysis will be faster and the amount of (expensive) reagents and analytes used can be reduced. Furthermore, the physical dimensions are much smaller than those of conventional devices. This enables Life Sciences system integrators to downscale the size, inherently reducing the costs of ownership, of their equipment. Also, the miniature-sized and lightweight instruments are suitable for application in portable systems.
The very compact instrument measures ultra low flow ranges from 1.5 - 75 mg/h (0.025 - 1.25 μl/min) up to 12 - 600 mg/h, based on water. The straight, duplex steel sensor tube has an internal volume of less than 1 mm3 and operates on the thermal measuring principle.
Due to its high pressure rating (up to 1000 bar) the flow meter is ideally suited to HPLC systems.
The LIQUI-FLOW mini is equipped with a microprocessor-based printed circuit board, offering high accuracy and excellent temperature stability. The RJ45 connection is used for power supply and for both analog and digital (RS232) communication.
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California Here We Come
Showing Off in Santa Clara
The next location where you can visit us in person is at the SVC TechCon in Santa Clara, CA on May 1st and 2nd.
Come see the CEM vaporizer, the LIQUI-FLOW mini, and the mini CORI-FLOW.
Contact us at sales@bronkhorstusa.com for a free pass for the exhibition, with our compliments.
We are eager to hear how we can help you: Booth # 908.
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Good to Know
Accuracy & Repeatability
What is accuracy of a mass flow meter, what is repeatability of a mass flow meter, and what difference does it make?
Accuracy of a mass flow meter is the expression of error (%) as compared to a primary standard. In practical terms it is the degree to which the actual output of the flow meter matches the calibration curve of the flow meter.
Repeatability of a mass flow meter is the amount (%) that any single device can repeat the value previously delivered at the same conditions. In practical terms this means that the output seen at a given set of conditions may, or may not, match the calibration curve of the instrument but it will be the output seen at that same set of conditions.
A highly accurate instrument requires high repeatability, but a highly repeatable instrument does not require high accuracy.
So, why does it matter? Once you identify the needs of an application, and accordingly specify what you are seeking in a mass flow meter, you allow the best instrumentation recommendation to be made. Increasing accuracy tends to come at an increasing cost which can be justified if required in the application. High repeatability with lower accuracy may be a cost effective solution for a given application.
Speak with us about your application and we will be sure you get what you really need.
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