OPERATING INSTRUCTIONS
TYPICAL CONSTANT CURRENT OPERATION
1.Before connecting the device to be powered to the power supply, determine the maximum safe voltage to be applied, and set the VOLTAGE controls to obtain that voltage reading on the Voltage LED display.
2.Determine the desired constant current value.
3.Set the Coarse and Fine CURRENT control to minimum (fully counterclockwise).
4.Turn off the power supply and connect it to the device to be powered.
5.Turn on the power supply. The CC indicator should light.
6.Increase the Coarse and Fine CURRENT control setting until the desired constant current value is read on the display, or set the current limit in advance (before connecting the load) as prescribed in the earlier “Setting Current Limit” procedure.
7.If the load current drops below the constant current value, the CC indicator will go off and the CV indicator will light. In this case, the power supply automatically switches to the constant voltage mode, and further rotation of the CURRENT controls will not increase the output current.
Read output current
on meter
Load
Preset voltage limit
Adjust to desired
current
CC Indicator on
Figure 6. Typical Constant Current Operation.
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