Thermal Mass Flowmeter

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The sensor unit of a thermal mass flowmeter consists of two sheath pipe-shaped sensors acting as flow speed sensor and temperature sensor, respectively. The flow speed sensor is controlled (heated) to a specified temperature difference from ambient temperature. The heat taken away from the flowrate sensor due to the fluid flow is correlated to the mass flow. Therefore, the mass flowrate can be obtained from the amount of power applied to the flowrate sensor to compensate for the removed heat. A thermal mass flowmeter features wide flow range and enables direct measurement of mass flowrate without compensating temperature and pressure. We have shipped many thermal mass flowmeters for management of energy saving.

Thermal mass
flowmeter lineup

Fluid category High
accuracy

*1
Micro

*2
High
tempe-rature

*3
Ultra-high
pressure

*4
Explosion
proof
Battery
powered
For energy
saving
measures
Liquid
Steam
Gas

Inexpensive Energy
Conservation Management:

Mass flow monitor

           

Inexpensive City Gas
Flow Measurement:

High accuracy Mass Flow Monitor

           

Insertion, in-line portable type:

Mass flow meter for gas service

         

*1: Within ±1% RD, *2: Within 1.5 mL/min or 0.1 L/min (normal), *3: 200°C min., *4: 30 MPa min.

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