The PSM Series is a programmable linear DC power supply with a 4-wire output. It features a stable and pure power supply with a 0.01% load/line regulation and 350uVrms ripple. The unit is equipped with 100 memory presets for customizable time and sequence settings. It includes overvoltage protection (OVP), overcurrent protection (OCP), and over-temperature protection (OTP) for enhanced safety. The power supply offers output ON/OFF control and built-in self-diagnostic and calibration software. It provides a single-output dual-range with a maximum power of 200W (3004 model: 120W) and a resolution of 1mV/1mA. The unit has front and rear output terminals and standard interfaces, including RS-232 and GPIB (IEEE 488.2).