OPERATING INSTRUCTIONS___________________________________________________________________________
8.If the load current exceeds the preset current limit, the CONSTANT CURRENT indicator will light. In this case, the power supply automatically switches to the constant current mode and further rotation of the VOLTAGE control will not increase the output voltage.
Setting Current Limit
1.Determine the maximum safe current for the device to be powered.
2.Temporarily short the (+) and
3.Rotate the VOLTAGE control away from zero sufficiently for the Constant Current indicator to light.
4.Adjust the CURRENT control for the desired current limit. Read the current value on the mA meter.
5.The current limit (overload protection) has now been preset. Do not change the CURRENT control setting after this step.
6.Remove the short between the (+) and
Typical Constant Current Operation
1.Before connecting the device to be powered to the power supply, determine the maximum safe voltage to be applied, set the A/B Meter s election switch to the A (up) position, and set the VOLTAGE control to obtain that voltage reading on the Volt meter.
2.Determine the desired constant current value.
3.Set the CURRENT control to minimum (fully counterclockwise).
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Figure 4. Typical constant voltage operation
4.Turn off the power supply and connect it to the device to be powered.
5.Turn on the power supply. The CONSTANT CURRENT indicator should light.
6.The current can be read directly on the mA meter.