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Circuit-test PSC-4120 Operation Manual

Switching mode power supply with usb remote control
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CIRCUIT-TEST
Switching Mode
Power Supply with
USB Remote Control
OPERATION
MANUAL
PSC-4120
1-20VDC / 5A
PSC-4136
1-36VDC / 3A
PSC-4160
1-60VDC / 1.6A
1

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Summary of Contents for Circuit-test PSC-4120

  • Page 1 CIRCUIT-TEST Switching Mode Power Supply with USB Remote Control PSC-4120 1-20VDC / 5A PSC-4136 1-36VDC / 3A PSC-4160 1-60VDC / 1.6A OPERATION MANUAL...
  • Page 2 PSC-4120_4136_4160 08R18...
  • Page 3: Table Of Contents

    Contents Safety Precautions ................page 4, 5 Introduction ..................... 6 Controls and Indicators ..................7 Operations ....................... 8 PC Connection ....................12 Specifications ....................13 Command Set ....................14 Warranty ....................... 16...
  • Page 4: Safety Precautions

    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 two types of notices used in this manual WARNING: Failure to observe this warning may cause injury to...
  • Page 5 Warning 1. Do not use this power supply near water. 2. Do not operate or touch this power supply with wet hands. 3. Do not open the casing of the power supply when it is connected to AC mains. 4. Refer all servicing to qualified service personnel only. 5.
  • Page 6: Introduction

    Introduction This family of Switching Mode Power Supplies offer current limiting control with high accuracy and a space saving compact design with easy portability. It features rotary encoder tuning with MCU for voltage and current control. The 4 digit LCD display’s the voltage and current readings with high precision.
  • Page 7: Controls And Indicators

    Controls and Indicators Power Switch: - Turns the power supply ON/OFF, when it is ON the front display lights up AC Input power socket Fuse holder (ply open the cover to get to the fuse) 3.3V/5VDC selection switch (for Aux output 1) Output Voltage tuning knob.
  • Page 8: Operations

    Operations Basic Mode of Operation This power supply is designed to operate as a constant voltage source or as a constant current source. Automatic crossover to either mode of operation occurs when the load condition changes as following: Constant Voltage (CV), Automatic crossover & Constant Current (CC) The power supply functions as a constant voltage source (CV) as long as the load current is less than the preset current limiting value.
  • Page 9 6. Connect to your load positive to positive and negative to negative. 7. Turn on the output terminal again and check if display shows (CV). 8. If display shows (CC), either your pre-set current limiting value is too low or your load requires more voltage and current.
  • Page 10 Connecting outputs in series (using PSC-4136 as an example) You can have a 17V fixed output by connecting the 5V in series with the 12V outputs. The 2 outputs (Aux.1) can be connected in series to make a variable 5V to 41V with maximum current 2A (Fig.
  • Page 11 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 30% 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-deter- mined value, the output voltage and current of the power supply will automati-...
  • Page 12: Pc Connection

    PC CONNECTION This power supply with USB feature can be remotely controlled using Windows PC. Connect the power supply to PC using supplied USB cable. There are two ways to remotely control this power supply; with the PC control software downloadable from the website www.circuittest.com or with your own program using the command sets provided in this manual.
  • Page 13: Specifications

    SPECIFICATIONS PSC-4120 PSC-4136 PSC-4160 Input Voltage 105 - 135VAC / 60Hz Full Load Input Current at 120Vac 1.3A Output Voltage Adjustable Range 1.0 - 20Vdc 1.0 – 36Vdc 1.0 - 60Vdc Output Current Adjustable Range 0.25 - 5A 0.25 - 3A 0.25 - 1.6A...
  • Page 14: Command Set

    COMMAND SET Command code & Return Value Description Example Input Command: Set Output on/off Input Command: SOUT0[CR] SOUT<Output>[CR] Set Output off: <Output>=0 Return Value: [OK][CR] Return Value: [OK][CR] Set Output on: <Output>=1 Meaning: Set Output off Input Command: GOUT [CR] Get Output Status Input Command: GOUT[CR] Return Value: <Output>...
  • Page 15 Command code & Return Value Description Example Input Command: GMOD [CR] Get MODE Input Command: GMOD[CR] Return Value: <MODE>[CR][OK] <MODE>=NTP???? Return Value: NTP5521[CR] [CR] [OK][CR] Meaning: Mode is NTP5521 Input Command: GVSH [CR] Get voltage set high limit Input Command: GVSH [CR] Return Value: <Voltage>[CR][OK] <voltage>=???? Return Value: 3600 [CR]...
  • Page 16: Warranty

    Warranty Circuit-Test Electronics warrants to the original purchaser that this product be free of defect in material or workmanship for a period of 2 years from the date of purchase. Any product which has been subjected to misuse or accidental damage is ex- cluded from the warranty.
  • Page 17 Notes:...
  • Page 18 CIRCUIT-TEST E L E C T R O N I C S Division of R.P. Electronic Components Ltd. BURNABY, BC CANADA V5J 5M8...

This manual is also suitable for:

Psc-4136Psc-4160