CH8711 series programmable electronic load instruction manual. The main features are full digital operation and control, high-contrast character type PLED display, convenient knob encoder switch operation, basic load functions: constant current, constant voltage, constant power, constant resistance, multiple machines can be used to expand load capacity, short circuit test, battery test function, dynamic test function, list of multiple parameter mixed test, remote voltage measurement, panel and external trigger function, protection function: overvoltage, overcurrent, over power, overheating, reverse polarity, 10 groups of parameter memory and call, with automatic call function at startup, intelligent fan control, keyboard lock and knob lock function, minimum start voltage, minimum shutdown voltage and automatic delay shutdown function, humanized multi-level menu settings, convenient and intuitive operation, RS232C communication interface and multi-machine communication function.