The methods outlined in IEC 61298-2 apply to a wide range of hardware utilized in automation: Device Category Example Hardware Covered
To understand Part 2, it is helpful to look at how the entire is structured to support performance evaluation: IEC 61298-2:2008
"You have to respect the standard," he told the humming machine, patting the cool metal of the pipe. "The world shakes, kid. You have to be built to hold together." iec 612982
The standard requires a series of "calibration cycles." Typically, this involves increasing the input signal in steps (e.g., 0%, 25%, 50%, 75%, 100%) and then decreasing it back to zero. This reveals: How closely the output follows a straight line.
The closeness of agreement between successive measurements of the same value of the same quantity carried out under the same conditions of measurement. The methods outlined in IEC 61298-2 apply to
Yet, for decades, manufacturers used different methods to test and characterize their instruments. How do you guarantee that a sensor from a German supplier and a valve positioner from a Japanese vendor will perform predictably on the same control loop in Texas?
Here is the content breakdown of the series: This reveals: How closely the output follows a straight line
: To write performance requirements into contracts, ensuring they buy equipment that won't fail in critical applications. iTeh Standards
These results reveal a device's true environmental robustness.
The range through which an input can vary without initiating a change in the output.