To ensure the fairness of gas trade settlement when using electronic gas meters,the test methods for the indication error of electronic gas meters under user mode and detection mode are studied.The reasons for the differences in the indication errors under different working modes are analyzed from the perspective of power consumption design.The test requirements of the relevant electronic gas meter standards and the shortcomings of the current conventional test devices and test methods are analyzed,and a new scheme of value transmission is proposed.This scheme can quickly test the indication error under different working modes without changing the testing device and the hardware and software of the inspected meters.Six JGM4S-G thermal gas meters are tested according to the scheme.The test results show that the consistency reaches 99.94%.The result verifies the accuracy of the scheme.The scheme is simple and convenient to implement and can accurately complete the metering performance testing of electronic gas meters under user mode.
关键词
燃气表/超声波/用户模式/检测模式/示值误差/量值传递
Key words
Gas meter/Ultrasonic/User mode/Detection mode/Indication error/Value transfer
维普
万方数据