This standard specifies the main performance parameters, test methods, general technical requirements and evaluation rules for digital indicators used in industrial process measurement and control systems. This standard applies to digital indicators for industrial process measurement and control systems with analog inputs (hereinafter referred to as instruments).
GB/T 13639-1992 history
2008GB/T 13639-2008 Digital indicators with analogue input for use in industrial-process measurement and control systems
1992GB/T 13639-1992 Digital indicators with analogue input for use in industrial-process measurement and control systems