When selecting a thermal mass flow meter, the following key parameters should be confirmed:
Measured mediumIt is mainly used for clean, dry gases, such as compressed air, nitrogen, oxygen, natural gas, biogas, flue gas, etc.It cannot measure liquids or wet gas with liquid droplets.
Flow rate rangePlease provide normal flow rate, minimum flow rate and maximum flow rate.Thermal mass flow meters are especially good at low flow measurement and have a wide turndown ratio.
Pipe size and installation typeCommon types: insertion type, inline (in-line) type.Confirm pipe diameter, installation position and whether it is for large pipeline or small tube.
Operating temperature and pressureProvide the working temperature and pressure of the measured gas to select the correct sensor and material.
Accuracy requirementStandard accuracy: ±(1.0% of reading) + 0.5% FS.High accuracy models are also available for precision measurement.
Output signal and communicationCommon options: 4–20 mA, pulse output, RS485 (Modbus), HART, etc.
Working environmentConfirm ambient temperature, humidity, and whether the installation site requires explosion-proof certification.
Post time: Mar-13-2026