Meters, Time Totalizing, Non-Hermetically Sealed, Electrical: General Specification for
电气非密封时间累计表:通用规范
发布日期:
2013-05-29
本规范涵盖了自动测量和累计记录所连接电路、机器或系统的总运行或空闲时间的电动非密封仪表的一般要求。
This specification covers the general requirements for electrically operated nonhermetically sealed meters that automatically measure, and cumulatively register the total operating or idle time of the circuit, machine or system to which connected.