Product Features
● Employing a microelectromechanical system (MEMS) flow sensing chip, the sensor features high precision, high sensitivity, and strong anti-interference capabilities.
● Zero-point stability of the sensor.
● It has high accuracy and good repeatability within its measurement range.
● Standard mechanical interface, easy to install.
● RS485 communication output, standard MODBUS RTU protocol.
● The LCD displays instantaneous and cumulative flow rates, which are clear, intuitive, and easy to read.
● It can be equipped with a 4~20mA standard current signal output.
● Ultra-compact size, dimensions: 90*35*127mm.
Product Introduction
The AI-FL universal thermal gas mass flow meter is an ultra-small thermal gas flow sensor designed and developed using an advanced microelectromechanical system (MEMS) flow sensing chip. This universal flow meter features high accuracy, high sensitivity, and strong anti-interference capabilities, making it suitable for measuring and controlling various small-flow-rate clean gases. Its ultra-small size allows it to be used in various pipe diameters, offering low cost, easy installation, and no need for temperature and pressure compensation. It can replace traditional volumetric or differential pressure flow meters.
Technical Parameters
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working power supply
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DC24V/2.5W
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Accuracy (%)
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±(2.0+0.2FS)
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medium temperature
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-10~55 ℃
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Zero Drift
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± 20m V
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Work pressure
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≤1.6 MPa ( default ), higher pressure ratings can be customized .
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show
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Instantaneous traffic, cumulative traffic
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Output method
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4-20mA / R S485 optional
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Communication Protocol
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Modbus R tu ( RS485 output)
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Mechanical connection
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G3/ 4 external thread, G1/2 external thread, G3/4 external thread
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Response time (ms)
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50-1000 ms
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Storage temperature
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-10~65℃
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humidity
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<95%RH (no frost, no ice)
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Note: The above data were measured at 25℃, 101.32 kPa, and in dry air.
Minimum measurable flow rate: 5 NL/min
Maximum measurable flow rate: 1000 NL/min
