When it comes to measuring gas flow rates in units of milliliters per minute (ml/min), there is a kind type of micro thermal mass flow meters available that can provide accurate measurements at ultra low flow rate around 2 ml/min.

Ultra low flow gas flow meter can detect air, Hydrogen,mix gas, biogas, CO2, N2, oxygen gas at very small flow rate even with around 2 ml/min.

How micro thermal mass flow meters work on ml/min flow range?

Micro Thermal Mass Flow Meters utilize the principle of heat transfer to measure gas flow rates. They have a sensor that measures the cooling effect of the gas as it flows past a heated element. Thermal mass flow meters are suitable for a wide range of gases and can provide precise measurements even in cc/min units.

We also provide mass flow controller, mass flow controllers are typically used in situations where precise control of gas flow rates is required. They incorporate a mass flow meter and a control valve to maintain a constant mass flow rate. Mass flow controllers are available with a variety of flow rate ranges, including ml/min.

Specifications of low flow gas flow meter and flow controller

Specification	Digital Mass flow controller	Digital Mass flow Meter
Range	2 SCCM~ 30 SL/M
Turn Down Ratio	50:1	100:1
Accuracy	± 1% F.S
Linearity	± 0.5% F.S
Repeatability	± 0.2% F.S
Response Time	< 2s	<0.8s
Communication	RS232/485.MODBUS
Output	0~5V,4-20mA,1-5V
Power Supply	±15VDC,24VDC
Operation Temperature	0~50°C
Operation Pressure	Operation DP:0.05~0.5Mpa	Operation pressure drop: <0.01Mpa
Max operation pressure	3MPa/10MPa
Electrical Interface	DB15
leak rate	1×10-9SCCSHe
Temperature coefficient	±0.025%F.S/°C
Base material	Stainless steel
Seal Material	Viton, neoprene, nitrile rubber
Connector	Φ3,Φ6,1/8”,1/4”

Where to buy gas flow meter ml/min ？

Silver Automation Instruments have micro gas flow meter ml/min for sale. Please inform us your low flow gas measurement requirements, gas type, low flow gas operation temperature and pressure, and process connection requirement.
We will definitely choose a suitable micro flowmeter for you, and the price is very favorable and reasonable.