数字米小组

Digital panel meter:Performance Standard compliance GB/T13850-1998 IEC688:1992 DL/T721-2000 IEC61000-4 Max. Display 9999 Resolution V: 0.1V I: 0.001A Input Range V: AC 0-600V I: AC 0-6A Accuracy Class 0.5 Absorbed Power Voltage loop: <0.6VA,Current loop: <0.1VA Overload resistance Voltage: 2 times of normal value input, continuous Current: 2 times of normal value input, continuous /10 times, 10s Measuring speed About 2.5 times/s Frequency 40-200Hz Load capacity <400Ω420mA output Communication protocol Modbus-RTU Contact capacity 220V/380V·5A Aux. power supply AC220V±20,50/60Hz,≤3VA Or DC100V-300V(customized) Working frequency withstand voltage Between power supply/input/output: ≥AC2kV/min·1mA Insulation resistance ≥100MΩImmunity to electrical fast transient/burstEFT: 2KV 5KHz Immunity to Surge voltage 2KV 1.2/50us