![]() The accuracy class specifies the permissible deviation of the indication in percent of the full scale value. As nominal sizes (NS) the following are specified for pressure measuring instruments: NS 40, 50, 63, 80, 100, 160 and 250. The scale ranges are standardised by EN 837 and the preferred pressure unit is the bar. In addition to decisive factors such as the type of pressure to be measured, the scale range, nominal size (NS, case diameter) and accuracy class of a pressure gauge also determine the version of the scale. What must be taken into account when selecting the right pressure gauge? Laboratory analysis of SF 6 & alternative gases.Basic materials (minerals, metals, paper).Valves with integrated pressure regulators.Heat transfer and distribution stations.Laboratory analysis of SF6 and alternative gases.International service network with system calibration.Power transmission and distribution (SF 6). ![]() Precision pressure measuring instruments. ![]()
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