JJG 1073-2011: Translated English of Chinese Standard. JJG1073-2011: Verification Regulation of Pressure Type SF6 Gas Density Monitors
https://www.chinesestandard.net, 2014-03-13 - 18 psl.
This Regulation is applicable to the initial verification, subsequent verification and examination in service of pressure type SF6 gas density monitors or gas density relay with measuring range of (-0.1~0.9) Mpa, the bourdon tube as measuring element, with temperature ompensating device and contact output function.
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20 calculated according absolute value according to percentage Accuracy grade alarm point Alarm value atresia pressure block system spot boosting Pressure dropping connecting points Deviation and Switching deviation at pressure Dielectric strength dropping Pressure boosting error of indicated error with ambient error:_______________________ examination in service Gas Density Monitors Henan Province Institute Hysteresis error indicated value Indication error verification initial verification Institute of Metrology instrument shall meet lower switching value Maximum permissible error measuring range meet the requirements over-limit pressure percentage of measuring point of over-limit pointer deflection Pressure boosting Pressure Pressure Type SF6 pressure value error Rated pressure value requirements of Table set value Set-point deviation SF6 Gas Density SF6 gas pressure Smoothness of pointer subsequent verification switching deviation Tapping displacement temperature compensation error Type SF6 Gas upper-limit alarm pressure Vacuum Gauge value of instrument value of set-point value of switching Verification Item verification point Zero error Zhengzhou