Global Processing

Digital test gauges with total error band accuracy

January 26, 2005
Digital test gauges with total band error accuracy use the terminal point method to express linearity: a stringent method which requires the linearity line to coincide with the zero and full-scale data points. This yelds better product specifications than the best fit straight line method, which does not require that zero and full-scale values coincide with the best fit straight line. Temperature and changes in temperature can dramatically affect the accuracy of an instrument; the test gauges are temperature corrected so there is no reduction in accuracy from 0 to 150 degrees F. For more information, contact Dresser Instruments at 800-328-8258 or go to www.ashcroft.com.