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Pressure source for microfluidic flow control
Generate and control pressure for your microfluidic chip without the installation of comprimed air lines or air compressors. Elveflow® pressure sources allow the installation of a microfluidic experiment in a few minutes on any lab bench equipped with an electric plug.
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Autonomous: Integrates both the pressure source and the pressure pump, no need for compressor/gas line.
Transportable: weight 1.2kg, small size : 15x15x20 cm.
Quick setup: 5 min for first installation, setup a new experiment in 2 minutes.
Accurate: Down to 100µbar tuning precision ( 0.0145 psi )
USB control option: Control your pressure source with your computer using Elveflow® proprietary software (optional)
4 independent outlets: Get a pressure source with four independent outlets (optional)
Both pressure and flow rate control and monitoring: No more need to choose between pressure source or syringe pump (optional)
Elveflow® large range autonomous pressure source integrates both the pressure regulator and the pressure source in the same equipment.
It enables a microfluidic flow control and to setup a microfluidic experiment by simply plugging an electric plug and the fluidic connections between the microfluidic device and the Elveflow® pressure source.
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Characteristics, tricks and tips
Transient pressure drop when opening the valve
When opening the outlet valve, the pressure measured by the sensor briefly (~1 sec) decreases and before stabilizing at its initial value. This comes from the fact that, before opening the valve, the sensor measures the pressure inside the pressure source and, at the opening of the valve, it measures a mean between pressure inside the generator and inside the microfluidic device connected to the outlet. The measured pressure quickly comes back to its initial value when the pressure on the microfluidic device becomes equal to the pressure in the pressure source. To reduce this time-lapse, one can reduce the dead volume between the pressure source and the microfluidic device.
Small permanent pressure shift when opening the valve
When opening the valve for the first time after setting the pressure with the tuning button, the displayed pressure permanently shifts by one or two mbar. This comes from the fact that the membrane of the internal pressure regulator changes position with the first opening of the outlet. This phenomenon does not occur for further valve switches.
Pressure source warm up
During the first 15 minutes of utilization, the pressure of the generator could change due to the components warm up. To get optimal performance, we recommend turning on the pressure sourcer at least 15 minutes before the beginning of your microfluidic experiment.
Friction of the pressure tuning button
The pressure source tuning button is directly linked to the spring of the internal regulator. The spring of the pressure source is compressed when increasing the pressure. The compression of the spring leads to a sensation of friction when turning the knob at the top of the pressure range.
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