Thermal Mass Flowmeter

More About Thermal Mass Flowmeter -

• Product Description -

  • Measurement Principle: Thermal Dispersion (Heat Transfer)
  • Direct mass flow measurement – no temperature or pressure compensation required
  • Non-intrusive design with low pressure drop
  • Gas-specific calibration for actual gas or custom gas mixtures
  • Wide turndown ratio up to 100:1
  • No moving parts – minimal maintenance and high reliability
  • Built-in temperature measurement for simultaneous flow and temperature data
  • Digital display (LCD or OLED) with configurable parameters
  • Communication options: Modbus, HART, Profibus, Pulse, 4–20 mA, RS485
  • Available in remote and integral mounting configurations
  • Insertion or inline type for both low and high flow rates
  • Explosion-proof models for hazardous gas areas

  Parameter	Specification
  Pipe Size Range	DN15 to DN600 (Insertion); DN15 to DN100 (Inline)
  Mass Flow Accuracy	±1% of reading ±0.5% of full scale
  Repeatability	±0.2% of reading
  Turndown Ratio	Up to 100:1
  Gas Types	Air, Natural Gas, Nitrogen, CO₂, Argon, Oxygen, Biogas, etc.
  Operating Temperature	-40°C to +200°C (sensor dependent)
  Operating Pressure	Up to 100 bar (model dependent)
  Response Time	≤1 second
  Power Supply	18–36V DC / 85–265V AC
  Output Signals	4–20 mA, Pulse, RS485, Modbus, HART
  Ingress Protection	IP65 / IP67 / IP68
  Material of Construction	SS304, SS316L, Hastelloy (optional)
  Certifications	CE, ISO 9001, ATEX/IECEx (optional for Ex-rated environments)
  Ambient Conditions	-20°C to +60°C, 0–95% RH (non-condensing)