Kikusui PAD-L III Series, Operation Manual

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PAD-L Basic Operation 3-7
3.2.3 Using as a constant current power supply
CAUTION
• A voltage limit value and required current value must be preset to
use the unit as a constant current power supply. To preset these
values, an actual voltage must be output; disconnect any load that
may be connected.
1. Turn on the POWER switch.
2. Make sure the C.V or C.C lamp lights up.
3. Set the voltage value to be applied to the load by turning the VOLTAGE
setting knob.
The value set here is used as a voltage-limiting value.
4. While pressing the CURRENT/VOLT. LIMIT switch, set the requested
current by turning the CURRENT setting knob.
The CURRENT/VOLT. LIMIT switch simply displays the present voltage and
current settings. It has no memory feature.
5. Turn off the POWER switch.
6. Connect a load to the output terminals.
7. Turn on the POWER switch.
8. The C.C lamp lights up to indicate that the unit is in constant current
mode.
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NOTE
• If the CURRENT/VOLT. LIMIT switch is pressed during constant current
operations, the output current drops from the set value by approximately 2 mA
maximum.
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CAUTION
• For the loads listed below in which sudden current application is
undesirable, follow steps 1 to 3 above, then follow steps 4 to 9 below.
a. Loads of unknown resistance
b. Loads whose resistance varies over a wide range
c. Loads of large inductance
4. Turn the CURRENT setting knob fully counterclockwise.
5. Turn off the POWER switch.
6. Connect a load to the output terminals.
7. Turn on the POWER switch.
8. Turn the CURRENT setting knob slowly counterclockwise to increase
current gradually.
9. The C.C lamp lights up to indicate that the unit is in constant current
mode.