RIGOL DP832A - Manual (Page 46)

RIGOL
6 DP800A Quick Guide
Single Channel Model (DP811A):
Press this key to select the 20V/10A range. Users can set the
parameters of the channel, such as voltage, current and
overvoltage/overcurrent protection.
Press this key to select the 40V/5A range. Users can set the parameters
of the channel, such as voltage, current and overvoltage/overcurrent
protection.
Press this key to enable or disable the output of the channel.