This standard specifies the naming and naming methods for electrical instrumentation products. This standard applies to the following small categories of products: a. Portable electrical measurement analog indicator instruments; b. Installed electrical measurement analog indicator instruments; c. Electric energy measurement and load control systems (including electric meters and electric power quantifiers); d. .Digital instruments; e.AC instruments; f.DC instruments; g.Recording instruments and optical oscilloscopes; h.Magnetic measuring instruments; i.Electrical parameter calibration devices; j.Power supply devices; k.Expansion limit devices and converters ; l. Comprehensive automated measurement system device.
JB/T 9280-1999 Referenced Document
GB/T 1242 Dimensions for panel mounted indicating and recording electrical measuring instruments*， 2000-10-17 Update
JB/T 9280-1999 history
1989JB/T 9280-1999 Method of type designations of electrical Instrument products