Selection issues for pressure calibrators
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The existing pressure transmitters have an accuracy of 0.25 grade, with ranges of 0-25MPa, 0-20MPa, 0-10MPa, 0-6MPa, 2.5MPa, 0-1MPa, 0-0.6MPa, 0-0.35MPa, 0-70KPa, 0-40KPa, 0-16KPa, 0-10KPa, 0-4KPa, 0-500Pa, and 30-50Pa. We are considering using the Drucker DPI612 series of pressure calibrators. How can we determine the most appropriate range for the standard gauge, and what are the reasons and criteria for this choice? Thank you
According to the specified standard table, the basic error should be less than 1/3 of the basic error of the instrument being calibrated.
The basic error is the inherent error of the instrument, which cannot be changed. Can it be considered as precision? Or is the basic error equal to precision multiplied by the range?
It can be said that no company is capable of producing modules for the entire range. Use multiple modules
There can’t be multiple range modules; otherwise, what would manufacturers do for a living?
Accuracy multiplied by range equals error; the accuracy of the standard gauge is less than 0.25, and as long as the error is smaller than that of the original gauge, it’s fine