Power supply unit HY3005MT provides electronic devices and schemes with power supply by continuous voltage in the range from 0 to 30 V and by current in the range from 0 to 5 A. - Parameters adjustment is made by potentiometers. There are two adjusters for each parameter (Coarse/Fine). - Output current value and output voltage value are displayed on 3-digit red colour LED-indicators. - Power supply source HY3005 has fault protection in the secondary circuit. In case of protection operating correspondent limiting LED indicators are lighting up by current or by voltage. - Output terminals, from which one can turn off the voltage, and bonding point are in the bottom of power supply faceplate HY3005MT. - Power supply is made by AC network 220 V. Power supply source HY3005MT turning on/off is made by the big key switch with safe position fixation. -Input Voltage: 230V/115V AC±10% 50Hz/60Hz±2Hz -Power effect : CV≤ 0.1%+1mV CC≤ 0.2%+1mA -Load Regulation: CV≤ 0.05%+3mV CC≤ 0.5%+3mA -Ripple and noise: CV≤5mVr.m.s (1≤ 3A) CC≤5mAr.m.s (1≤ 3A) CV≤10mVr.m.s(1>3A) CC≤10mAr.m.r (1>3A) -Protection: constant current or short-circuit protection -Voltage indication accuracy : LED ±0.2%+5digits -Current indication accuracy: LED ±0.5%+5digits -Environment :0~+40 degree Relative humidity: <90%.