Cooling Reviews Watercooling

Aqua Computer Flow Meter "High-Flow" in laboratory test – What can a flow meter do for 40 euros?

Comparison between the Aqua Computer "High-Flow" and the reference sensor

Both sensors have been serially hosed, so they are located directly in the same circuit in series. I measure the instantaneous volume flow in gradations of the generated flow (reading value at the Keyence FD-Q10C) of 0.2 l/m each in a practical range from 0.5 l/m ( 30 l/h) to 2.5 l/m (150 l/h) and generate a curve for the Aqua Computer "High-Flow" with these individual measured values.  If you are wondering about the angles on the sensor: the sensor hangs as the bottom of the "U" in a vertical inlet and outlet to exclude air bubbles.

The Aqua Computer "High-Flow" is indicated for a measurement from 40 l/h, which is then very clearly noticeable by the rather high inaccuracy at 0.5 l/m (30 l/h). That's about. 16% too little. Even with the specified 40 l/h (0.67 l/m) one is still well below what is indicated as tolerance with +/-2% in the data sheet. Only from approx. 0.9 l/m (54 l/h) one then moves within this self-specified tolerance range.

In the range around 1.5 l/m (90 l/h), the "High-Flow" is exactly on the line of the reference sensor, Chapeau. Only from approx. 2.3 l/m (138 l/h) you leave the tolerance range again and measure this time not too little, but a little too much. at 2.5 l/m (150 l/h) that is then approx. 2.8% above the reference value.

Summary and conclusion

In general, the Aqua Computer "High-Flow" can be certified as having a very good performance, even if this does not work with the tolerance specifications, especially in the lower range. However, if you are interested in volume flows between 60 and 130 l/h in your system, this flow sensor will give you more than just a fun treasure. Here, one can already of a very good sense of approximation or even measured values that are more than sufficient for domestic use in a custom loop water cooling system.

Due to its design, the "High-Flow" can even be used omni-directionally, i.e. with any flow direction, but is not suitable for liquids with many suspended particles (pastel mixtures), because the vane wheel and sensor magnets are absorbed quite quickly. Then there may even be capital selection errors. For something under 40 euros, however, you definitely can't complain, on the contrary. Even if you still have a suitable readout unit for the sensor, such as an aquaero is required, it remains relatively inexpensive.

This is precisely why he gets the earned purchase tip, even if the performance in the lower range of practice-relevant volume flows weakens somewhat. But the part is not called "High-Flow" for nothing, which would actually put everything back in order.

 

 

 

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About the author

Igor Wallossek

Editor-in-chief and name-giver of igor'sLAB as the content successor of Tom's Hardware Germany, whose license was returned in June 2019 in order to better meet the qualitative demands of web content and challenges of new media such as YouTube with its own channel.

Computer nerd since 1983, audio freak since 1979 and pretty much open to anything with a plug or battery for over 50 years.

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