Valve working medium

This refers to the fluid, typically air or gas is used to provide power to the valve positioner and the work of the automatic controller.
Operating Limits: A device can withstand without causing the operating characteristics permanent damage to the range of operating conditions.
Range: the region between the two maximum, their spacing can be measured, accepted, or transmission, and with the upper and lower range values
To be expressed (e.g.: 3 15Psi; -4 to 212 ° F, -40 to 100 ° C).
Repeatability: In the entire range of travel along the same direction, under the same working conditions, for the same input values, a series of continuous output of the closeness of the measured value. It is usually measured as non-repeatability, but the range of percentages. It does not include hysteresis.
Sensitivity: In the steady state is reached, the output amplitude changes caused by the change of the input changes between flange solenoid valve
Signal: a physical variable, it is one or more of the parameters carry information about the signal representative of another variable.
Signal amplitude sort (separate process): an operation mode, wherein there are two or more signal-generating, or two or more of the terminal control element is an input signal to drive each terminal control element with with or without the overlap of the input signal amplitude response.
Range: upper and lower range value of the arithmetic difference (eg: range = 0 to 150 ° F, range = 150 ° F; range = 3 to 15 psig, range = 12 psig).pneumatic auto drain