3 setting current limit, 4 typical constant current operation, Setting current limit – B&K Precision 1747 - Manual User Manual
Page 14: Typical constant current operation
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4.3 Setting Current Limit
1. Determine the maximum safe current for the device to be powered.
2. Adjust the coarse and fine current control for the desired current limit. Read
the current value on the current LED display. Wait 3 seconds.
3. The current limit (overload protection) has now been preset. Do not change
the current controls settings after this step.
Figure 5 - Setting Current Limit
4.4 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 (1 mA). Wait 3 seconds.
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.