Triple-output Regulated DC Power Supply Instruction Manual Model XP-770
COMPONENT OVERVIEW 2 5 6 10 19 9 1 12 11 18 17 16 8 15 14 13 22 23 24 -1- 4 7 3 21 20
1. Voltage and current indication for master output 2. Voltage and current indication for slave output 3. Voltage adjustment of master output 4. Current adjustment of master output 5. Voltage adjustment of slave output 6. Current adjustment of slave output 7. Constant voltage mode indicator light for master output 8. Constant current mode indicator light for master output 9. Constant voltage mode indicator light for slave output 10.
INTRODUCTION Congratulations on your selection of a top quality power supply! The XP770 is a triple-output regulated power supply providing two variable outputs (0-20V@ 2A) and one fixed (5V @ 3A). Four LCD displays allowing the output voltages and currents to be displayed simultaneously. The variable outputs can work independently, in series, or in parallel modes.
. Check that the voltage rating of the equipment does not exceed the power supply’s rating. Dual Power Supply Used in Independent Mode Set the tracking switches 11 & 12 to the OUT position. Constant Voltage Mode 1. Turn the master and slave output current adjustment control knobs (4 & 6) clockwise to the maximum position. Adjust the voltage adjustment control knobs (3 & 5) counter clockwise to the minimum position. 2. Turn the power switch ON. Both CV LED’s should be lit. 3.
Dual Power Supply Used in Series Mode 1. Set the tracking switch 12 to the IN position and tracking switch 11 to the OUT position. Adjust the master and slave output current adjustment control knobs (4 & 6) clockwise to the maximum position. Adjust controls 3 and 5 to the desired output voltage. The voltage of the master output should be tracked by the slave output. The highest output voltage is the sum of the value of both master and slave outputs when connecting the load to terminals 13 & 18. 2.
• The unit should be stored in a dry and well-ventilated place and the power cord removed if storing for a long period of time. • Never place any objects on the power supply. • Do not obstruct the ventilation holes. • Avoid contacting the heat sink of the power supply as it can become very hot. Contacting the heat sink when it is hot could result in skin burns or damage to the equipment in contact with them. • Never move or pull the power supply using the power cord or output lead.
MAINTENANCE Cleaning – Using a soft moistened cloth, remove any dirt on the outside of the case. The power supply should be used in a normal working environment. Servicing – If the unit becomes inoperative or damage, Elenco® Electronics or a qualified repairperson should only perform the repair and calibration. Fuse Replacement The power supply will not work if the fuse is blown or not installed. Check and repair any existing problems before installing new fuse.
