Thermal Mass Flow Meter

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Manas Microsystems Technology Excellence
Trust
Thermal Mass Flow Meter
www.manasmicro.com
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About Thermal Mass Flow Meter

• It is used to calculate the total mass flow rate
  of fluid, mainly gases, flowing through closed
  conduits.
• It is a direct mass flow meter with no moving
  parts
• Works effectively for large pipelines.
• Doesnt require any pressure and temperature
  compensation

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Theory of Operation

• Thermal Mass Flow Meter contains two Platinum RTD
  temperature sensors
• One sensor measures the fluid temperature as a
  reference.
• The second sensor is heated and has a constant
  temperature differential relative to the first
  sensor.
• When the flow of air/gas starts, heat is taken
  away from the warmer sensor.
• The amount of heat taken away is having a direct
  relation with the mass velocity of the fluid.
  That is how it is a direct mass flow meter works.

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Features of Thermal Mass Flow meter

• Simple for installation.
• There are no moving parts.
• Pressure and Temperature compensation is not
  required.
• Almost unobstructed straight flow path.
• Very negligible pressure loss and pressure
  requirement, unlike differential pressure flow
  meters.
• Straight pipe runs can be reduced by using flow
  conditioners or flow straighteners.
• Very good repeat accuracy.

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Applications of Thermal Mass Flow Meter

• Compressed air/ Gas Consumption measurement
• Gas measurement at very low-pressure flowing
  conditions
• Fuel Gas like CNG consumption measurement and
  control
• Automobile gas engine testing
• Industrial oxygen flow measurement and control
• Furnace and burner control
• Biogas measurement in digester biogas digester
  systems

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Technical Specification
Feature Description
Line Size DN 15 to DN 200
End Connection Flange/BSP(M) Threading/ Direct clamp mounting.
Accuracy 3 of Actual Flow Rate between 100 to 5 of Calibrated range
Display Blind/LCD 16/2.
Output 4-20 mA/RS 485, Pulse, Wireless Data Transfer.
Ingress Protection IP- 65
Operating Fluid Temp 0 100?
Operating Fluid Pressure Up to 10 bar
Power Supply 24Vdc/150mA (Without Wireless communication) 24Vdc/300mA (With Wireless Communication).
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THANK YOU
EL 54, Electronic Zone, J-block, MIDC Bhosari,
Pune 411026. Maharashtra, India. Tel
8484039026 Ext. No. 106 Mob 91 77220 34924 /
74200 99054 mktg_at_manasmicro.com www.manasmicro.co
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We are certified with ISO/IEC 170252017
ISO 90012015 ISO 140012015 OHSAS 450012018