Category: Flow
Are you choosing the correct flow meter?
Most buildings require some aspect of water flow and, often, BTU measurement. Several different flow sensor techniques can be used depending on need. These include water type, application, accuracy, required measurement, installation challenges, and cost effectiveness. Below is a table to help you determine which technique, product, and installation is most relevant for your project. […]
Read PostApplication Tips: Determining Air Flow in Cubic Ft./ Min
To calculate Air Flow in Cubic Feet per Minute (CFM), determine the Flow Velocity in feet per minute, then multiply this figure by the Duct Cross Sectional Area. Air Flow in CFM (Q) = Flow Velocity in Feet Per Minute (V) x Duct Cross Sectional Area (A)
Read PostDivide & Conquer Those Hard-to-Read Flow Meter Pulses
Some HVAC applications require reading and totalizing pulses from flow meters. This sounds simple enough, just take the pulse output from the flow meter, connect it to a Binary Input (BI) on your controller, and set up the program logic to count pulses coming in on the BI. What could go wrong? Unfortunately things are […]
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