Instruction Manual Model 1550 DC Power Supply with USB Charger Output 1-30V, 0-3.
Keep this manual in a safe place for quick reference at all times. This manual contains important safety and operation instructions for correct use of the power supply. Read through the manual and pay special attention to the markings and labels of this unit and equipment to be connected. Pay special attention to these notices used in this manual: WARNING: Failure to observe this warning may cause injury to persons and damage to power supply or connected equipment.
INTRODUCTIONS I. Using the 1550 switching mode power supply The unit is a Micro-controller based DC power supply with a total supply capability of 100W. By using a digital + / - keypad operation control, you can set the output voltage and current easily. It is a clean supply with quiet operation making it ideal for laboratory, work shop or educational applications where work bench space is limited.
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. Power Switch : Turns the power supply on–off, when it is on the front display lights up AC Input Socket with Fuse Concealed Fuse box ( please open the cover to get to the fuse) V: Output Voltage Setting keypad A: Output Current Setting keypad “+” ascend Setting keypad. Press to ascend the numerical values “-” descend Setting keypad. Press to descend the numerical values Output On/Off push button.
OPERATIONS Ground Connection Depending on the application, the power supply output terminals can be grounded in any one of the following grounding conditions: Negative ground – black (-) negative terminal is shorted with green GND terminal. Positive ground – red (+) positive terminal is shorted with green GND terminal. Floating ground – green terminal is not shorted with any of the output terminals.
Tracking Output Over Voltage Protection (OVP) This is to protect the connected load in the event that the output voltage control circuit malfunctions, the maximum output voltage will not exceed 40% of the adjusted voltage value at the time of the operation. Over Temperature Protection When the temperature inside the power supply becomes higher than a pre-determined value, the output voltage and current of the power supply will automatically decrease to zero to prevent damage to power supply.
Limited One-Year Warranty B&K Precision warrants to the original purchaser that its products and the component parts thereof, will be free from defects in workmanship and materials for a period of one year from date of purchase from an authorized B&K Precision distributor. B&K Precision will, without charge, repair or replace, at its option, defective product or component parts. Returned product must be accompanied by proof of the purchase date in the form of a sales receipt.
Printed in Hong Kong 2008 B&K Precision Corp. 22820 Savi Ranch Parkway Yorba Linda, CA 92887 USA TEL: 714-921-9095 FAX: 714-921-6422 www.bkprecision.
