Voltage Range: 0V to 60V Current Range: 0A to 20A Power Range: Up to 420W Output Voltage Setting: By coarse and fine controls. Output Current Setting: By single logarithmic control. Operating Mode: Constant voltage or constant current with automatic cross-over provided that the power demanded stays within the power envelope, see graph. Outside of this envelope the output becomes unregulated. CPX 400A POWER ENVELOPE Output Switch: Electronic. Preset voltage and current displayed when off. Output Terminals: Universal 4mm safety binding posts on 19mm (0·75”) pitch. 30A max. Sensing: Switchable between local and remote. Spring-loaded push terminals for remote connection. Output Protection: Forward protection by Over-Voltage Protection (OVP) trip; maximum voltage that should be applied to the terminals is 70V. Reverse protection by diode clamp for reverse currents up to 3A. Over-temperature Protection: The output will be tripped off if a fault causes the internal temperature to rise excessively. OVP Range: 10% to 110% of maximum output voltage set by front panel screwdriver adjustment. Line Regulation: Change in output for a 10% line change: Constant voltage: <0.01% of maximum output Constant current: <0.01% of maximum output Load Regulation: Change in output for any load change within PowerFlex envelope, remote sense connected: Constant voltage: <0.01% of maximum output Constant current: <0.05% of maximum output Ripple & Noise (20MHz bandwidth): 4mVrms max; typically <2mVrms, <10mV pk-pk, at maximum load, CV mode.