B&K Precision 1730A - Manual - Manual (Page 16)

15
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 V meter.
2. Determine the desired constant current value. If greater
than 0.25 A for Model 1710A, or greater than 0.5 A for
Model 1730A, set the High-Low switch to High. If less
than these values, set the High-Low switch to Low.
3. Set the 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 CURRENT control setting until the desired
constant current value is read on the A meter, 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 control will not increase the
output current as read on the A meter.
Figure 6. Typical Constant Current Operation.
OPERATING INSTRUCTIONS
Read output current
on meter
Midrange voltage
limit
Adjust to desired
current
CC Indicator on
Select
High or Low
range
Load