Warning: Make sure the output is stopped before turning the power supply on or off. Shutting down
improperly can cause the power supply to fail when it’s turned on next time. Damages due to improper
startup and/or shutdown are not under warranty.
Warning: When running an inductive load like magnetic coils, DC motors, stepper motors, etc., make sure to
set the output to zero before turning on the output; once output is on, change the voltage/current slowly,
and NEVER turn the power supply output on or off, or worse yet, shutting down or turning on the
power supply with a inductive load connected!
2) Installation: For better heat dissipation, the two sides and back of the power supply should have at least 10cm
space from the walls.
3-2 Constant Voltage / Constant Current Characteristics
The power supply is a regulated constant current / constant voltage (CC CV) power supply, which is characterized by
automatic crossover from constant current (CC) to constant voltage (CV), and vise versa. At any moment, the power
supply automatically determines whether to operate in CV or CC mode, depending on the voltage and current limit
(set by the front knobs), and the load connected (if no load is connected, it simply means that the load resistance is
infinite; conversely, if a short is connected, the load resistance is zero).
Note: The power supply is in CC mode if indicator light 10 is red; it’s in CV mode if indicator light 11 is red.
In order to understand the crossover, it is important to note that the voltage and the current are related by the Ohm’s
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