Also see unscheduled downtime state . In mass flow controllers, this is full scale or the highest set point at which the instrument is specified. In mass flow meters, this is full scale or the highest actual flow value at which the instrument is specified. A user is considered to be responsible for many setup and configuration activities that cause the equipment to best conform to factory operations practices. Valve functions can include shutoff, metering, backflow prevention, and pressure relief.
Vapor pressure is a function of the substance and of the temperature.
Examples are thickness in angstroms, step height in micrometers, and haze in parts per million. Variables are measured on a continuous scale. Venturi device n a flow device for generating a vacuum by means of air flow or purge-gas flow through a restricted orifice. Design trade-off and implementation decisions, as well as verification exercises, occur entirely with the help of software tools. Only after all specifications are met and the designer is satisfied with the result does the actual implementation take place.