Measuring air flow in an HVAC duct can be a tricky business. Paddle wheel and turbine flow meters introduce not only resistance but maintenance issue due to accumulated dust and debris.

All thermal mass flowmeters work by measuring the cooling effect of a moving ... formula-based calculation to the air flow readings to set their instrument’s gas calibration. At best, this procedure ...

Figure 1. In typical boilers, air and fuel are combined for combustion, which creates heat to boil the water, creating steam. The steam causes a turbine to spin, generating electricity. Measuring the ...

and mass flow controllers (MFC) particularly suitable for measurement and control in gas delivery systems and plant engineering applications. The mass flow meters and controllers of the red-y ...