B&K Precision 1671A - Manual - Manual (Page 14)

OPERATING INSTRUCTIONS
2. Connect the red (+) OUTPUT terminal of the power supply to
the positive polarity input of the equipment being powered.
3. Connect the black (-) OUTPUT terminal of the power supply to
the negative polarity input of the equipment being powered.
4. Place the POWER switch to the ON position, the ON indicator
should illuminate,
5. Turn on the equipment being powered.
Typical Constant Voltage Operation
1. Before connecting the device to be powered to the power supply,
determine the maximum safe load current for the device to be
powered and set the current limit value (see "Setting Current
Limit" procedure in the is section).
2. Set the VOLTAGE control to minimum (fully counterclockwise)
3. Turn off power supply and connect it to the device to be powered
4. Turn on POWER switch. The power ON indicator should light
5. Increase the VOLTAGE setting until the voltage display reads
the desired value.
6. If the load current exceeds the preset current limit, the
CURRENT LIMITED 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 current.
Setting Current Limit
1. Determine the maximum safe current for the device to be
powered.
2. Rotate the VOLTAGE control away from zero until some low
voltage (under 1 volt) is indicated.
3. Temporarily short the (+) and (-) OUTPUT terminals of the
power supply together with a test lead
4. Adjust the CURRENT control for the desired current limit. Read
the current value on the current display.
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 (-) OUTPUT binding
posts and hook up for constant voltage operation.
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 control to obtain that voltage reading on the display.
2. Determine the desired constant current value.
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.
6. Increase the 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 earlier in the
"setting Current Limit" procedure.
8