Digital Ammeter Ⅰ、Survey：Digital Ammeter is a type of multifunctional composite type meter,Website: , it apply to electric power and electric network, field monitoring and display of automatic control systems and remote control and measurement of automatic dispatch telemechanical device,its function is to output standard current or signal using CPU operation electric network’s parameter,such as current and then A/D’s conversion.Ⅱ、Main technical specification1、Accuracy Class： 0.5F·S±1 class2、Display Digit：4 3、Reference Input：AC /AV：0～5A/0～500V   volts D.C.：0～199.9V   0～1000V4、Power consumption：≤3W5、Working power：AC85～242V,50HZ6、Working circumstance：0～50℃,relative humidity≤85％,without corrode and electric radiationⅢ、Panel board and connection 1、Panel board