You can get a Plan Review by an architect at the Fire Marshalâs Office, and they have satellite offices all over the state.
Primary flow element. A primary flow element is the element of a flow meter that serves to indicate the quantity or velocity of flow. For example, in the case of an orifice flow meter, the differential pressure across the orifice plate is the primary flow element.
The primary sensor data type for ambient light sensors is illuminance in lux (lumens per square meter). The principles outlined in this topic are based on taking lux values as input and reacting to that data in a program. Lux readings are directly proportional to the energy per square meter that is absorbed per second.