550 1 - 36V, 0-3A DC Power Supply User Manual
Safety Summary The following safety precautions apply to both operating and maintenance personnel and must be followed during all phases of operation, service, and repair of this instrument. Before applying power to this instrument: • Read and understand the safety and operational information in this manual. • Apply all the listed safety precautions. • Verify that the voltage selector at the line power cord input is set to the correct line voltage.
SAFETY SUMMARY ii You must ensure that each accessory you use with this instrument has a category rating equal to or higher than the instrument’s category rating to maintain the instrument’s category rating. Failure to do so will lower the category rating of the measuring system. Electrical Power This instrument is intended to be powered from a CATEGORY II mains power environment. The mains power should be 115 V RMS or 230 V RMS.
SAFETY SUMMARY iii This instrument is intended to be used in an indoor pollution degree 2 environment. The operating temperature range is 0◦ C to 40◦ C and 20% to 80% relative humidity, with no condensation allowed. Measurements made by this instrument may be outside specifications if the instrument is used in non-office-type environments.
SAFETY SUMMARY iv instrument’s fuse requirements and safe replacement procedures. Disconnect the instrument from the power line before replacing fuses. Replace fuses only with new fuses of the fuse types, voltage ratings, and current ratings specified in this manual or on the back of the instrument. Failure to do so may damage the instrument, lead to a safety hazard, or cause a fire. Failure to use the specified fuses will void the warranty.
v SAFETY SUMMARY Safety Symbols Refer to the user manual for warning information to avoid hazard or personal injury and prevent damage to instrument. Electric Shock hazard Alternating current (AC) Chassis (earth ground) symbol. Ground terminal On (Power). This is the In position of the power switch when instrument is ON. Off (Power). This is the Out position of the power switch when instrument is OFF.
Contents Safety Summary Safety Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Contents i v vi 1 INTRODUCTIONS 1 2 Controls and Indicators 2 3 Operations 3.1 Ground Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2 Basic Mode of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 3.3 Constant Voltage (CV), Automatic crossover & Constant Current (CC) 3.4 Presetting Current Limiting Value (CC) . . . . . . .
Chapter 1 INTRODUCTIONS 1. Using the 1550 switching mode power supply The unit is a Micro-controller based DC power supply with a total supply capability of 108W. 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.
Chapter 2 Controls and Indicators Figure 2.1: Front Panel 1. Power Switch: Turns the power supply on-off, when it is on the front display lights up 8. Output On/Off push button. 9. USB Output Socket Standard USB DC power 5V, 400mA To charge or to power portables and cell phones 2. AC Input Socket with Fuse 10. Output Terminal Positive (+) Red color 3. Concealed Fuse box ( please open the cover to get to the fuse) 11.
Chapter 3 Operations 3.1 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.
CHAPTER 3. OPERATIONS 3.4 4 Presetting Current Limiting Value (CC) Switch on the power supply, adjust the output voltage to about 3V, turn off the output terminal with push button (8), icon becomes . Short the black and red output terminals and turn on the output terminal by (8), icon becomes , adjust the current limiting value to your desired value say x Amp by (6) and (7) keypad. Turn off the output terminal and take out the shorting connection.
Chapter 4 Specifications AC Input 100-120 Vac, 60Hz* Full Load Input Current at 120Vac 1.
6 CHAPTER 4. SPECIFICATIONS General: LCD Indication CC, CV, Amp, Volt, Output ON-OFF Protection Short Circuit, Overload, Over Temperature, Tracking OVP Cooling System Natural Convection Dimensions (WxHxD) 2.8 x 6.0 x 9.8 (70 x 150 x 250mm) Weight 4.4lbs.
Chapter 5 Service Information Warranty Service: Please go to the support and service section on our website at bkprecision.com to obtain a RMA #. Return the product in the original packaging with proof of purchase to the address below. Clearly state on the RMA the performance problem and return any leads, probes, connectors and accessories that you are using with the device. Non-Warranty Service: Please go to the support and service section on our website at bkprecision.com to obtain a RMA #.
Chapter 6 LIMITED ONE-YEAR WARRANTY B&K Precision Corp. 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. B&K Precision Corp. 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.
