Velleman K7200, Manual, Page: 31 / 54

H7200-ED2-31
ADJUSTMENT OF THE POWER SUPPLY SECTION
- Connect an ampere-meter (minimum 10A range) over the output clamps.
- Turn current limitation potentiometer to maximum (completely to the right).
- Turn voltage regulator potentiometer (COARSE) to the intermediate position.
- Turn trimming potentiometer RV1 completely to the left (maximum current
adjustment).
- Turn trimming potentiometer RV2 completely to the right (minimum current
adjustment).
- Connect the power supply to the mains (the current limitation LED will light up
strongly).
- Carefully adjust RV1 until ampere-meter reads 10A.
- Adjust current limitation to 1A (center position).
- Carefully adjust RV2 until ampere-meter reads 1A.
ADJUSTMENT OF DIGITAL READOUT
- Connect a voltage meter (30V range or more) to the power supply output.
- Put the current potentiometer (CURRENT LIMIT) to 1A.
- Switch on the power supply, if everything functions properly the readouts
should read 000.
- Adjust the power supply to a voltage of about 30V (see measuring appliance).
- Adjust the METER ADJUST of the voltage meter until the readout is the same
as that of the connected measuring appliance.
- Replace the voltagemeter by an ampere-meter (minimum 10A).
- Adjust the current until the ampere-meter reads about 8A.
- Adjust the METER ADJUST of the ampere-meter until the readout is the same
as that of the connected measuring appliance.
Finally mount the top cover (by sliding) by first removing the front panel, the
power supply is now ready for use.