Thermal Mass Flow Meters

Thermal Mass Flow Meters

Thermal Mass Flow Meters are used for the measurement of flow rate of liquid or gas in industrial processes (ventilation, fermentation, flotation)…

Thermal Mass Flow Meters Characteristics

  • measurement accuracy does not depends on fluid pressure or temperatures
  • no moving parts
  • digital readings of how much gas or liquid has flowed through device
  • programmable measurement parameters
  • microprocessor controlled devices

Tthermal mass flow meter principle of operation

Thermal mass flow meters have two sensors. One of the sensors is constantly heated (flow sensor) and the other sensor (reference senasor) measures fluid or gas temperature. As fluid flows by the flow sensor, fluid molecules absorb heat away from the surface and the sensor cools. The amount of heat required to maintain constant temperature is proportional to the flow rate.

Typical Thermal Mass Flow Meter Device

LCD display Liquid Crystal Display gives visual reading of thermal mass flow meters device Integrated or external mount
Output   Analog or digital
Response speed How quickly thermal mass flow meters instruments begins to read From 10 milliseconds to 3 seconds
Process temperature rating   Different range
Additional data Additional process data reading Volumetric flow rate, line temperature or line pressure
Communications Connection to computer interface RS-485, RS-232, DeviceNet

Applications:

  • compressed air monitoring
  • natural gas
  • wastewater
  • flare gas monitoring
  • combustion air
  • chlorine metering
  • fuel flow
  • natural gas
  • carbon dioxide
  • bio gas
  • oxygen
  • flare hydrogen
  • argon
  • nitrogen
  • digester gas



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One Response to 'Thermal Mass Flow Meters'

  1. G.G.FARD - April 30th, 2007 at 4:38 pm

    Dear Sir
    WE are please to inform you that we have request for Natural gas =
    ultrasonic Meters as below details.
    Multipath ultrasonic Meter Transite time type,direct or reflective paths =
    use for input and out put pipe line or stations.
    Your early respond we remain.
    Kind Regards
    G.G.FARD