Manuals+

KUAIQU SPPS-2KD Series

KUAIQU Dual-channel Adjustable Switching Power Supply

Model: SPPS-2KD Series

Product Overview

The KUAIQU SPPS-2KD series is a new generation of dual-channel adjustable DC power supplies, designed for laboratory and benchtop use. This advanced power supply offers versatile operation modes including independent, series, and parallel outputs, effectively providing the functionality of multiple power supply units in one compact device. It features high-precision control, intelligent data storage, and comprehensive safety protections to ensure reliable and safe operation.

Front view of KUAIQU Dual-channel Adjustable Switching Power Supply, showing two display panels for voltage, current, and power, along with control knobs and output terminals.
Front panel of the KUAIQU SPPS-2KD Dual-channel Power Supply.

Key Features

  • Dual-Channel Output: Two independent channels for flexible power delivery.
  • Multiple Operating Modes: Independent, Series, and Parallel modes for diverse applications.
  • Intelligent Data Storage: 8 data sets (M1-M4) for quick recall of settings.
  • Advanced Protection: Over Current Protection (OCP) and Over Voltage Protection (OVP) for device and load safety.
  • High Precision Control: Encoder knob for precise voltage and current adjustments.
  • User-Friendly Interface: Output switch, panel lock, and mute function for enhanced usability.
  • Connectivity: USB, RS-232, and RS-485 interfaces for software control and communication.

Setup

Unpacking and Inspection

  1. Carefully remove the power supply from its packaging.
  2. Inspect the unit for any signs of physical damage. If damaged, do not operate and contact customer support.
  3. Verify that all accessories listed in the packing list are present.

Power Connection

  • Ensure the power switch is in the OFF position.
  • Connect the provided power cord to the AC input on the rear panel of the power supply and then to a suitable AC power outlet.

Initial Power On

  • Flip the power switch to the ON position. The display should illuminate, showing the default voltage and current settings.
Detailed diagram of the front panel of the KUAIQU power supply, labeling all knobs, buttons, and displays for CH1 and CH2, including current, voltage, OCP, OVP, Output, INDEP, SER, PAR, M1-M4, Lock, Mute, Power, USB 5V/2A, and output terminals.
Front Panel Layout and Controls.

Operating Instructions

Adjusting Voltage and Current

  • Use the CURRENT and VOLTAGE encoder knobs for each channel (CH1, CH2) to adjust the desired output values.
  • Encoder Knob Function: Press the encoder knob to switch between digits (e.g., units, tens, hundreds). Rotate the knob to adjust the value of the selected digit between 0 and 9.
Close-up of the encoder adjustment knob on the KUAIQU power supply, showing how pressing switches digits and rotating adjusts values from 0 to 9.
High Precision Encoder Adjustment Knob.

Output Control

  • Press the OUTPUT button for each channel (CH1, CH2) to turn the output ON or OFF. It is recommended to set voltage/current values before enabling output.

Operating Modes (Independent, Series, Parallel)

The SPPS-2KD series offers three main operating modes:

  1. Independent Mode (INDEP):
    • Each channel operates independently.
    • Press the INDEP button to activate this mode.
    • Example (SPPS605-2KD): Two independent 0-60V, 0-5A outputs.
  2. Series Output Mode (SER):
    • Combines the voltage of both channels while maintaining the current of a single channel.
    • Press the SER button to activate this mode.
    • Example (SPPS605-2KD): Single output 0-120V, 0-5A.
  3. Parallel Output Mode (PAR):
    • Combines the current of both channels while maintaining the voltage of a single channel.
    • Press the PAR button to activate this mode.
    • Example (SPPS605-2KD): Single output 0-60V, 0-10A.
Diagram illustrating the 4-in-1 DC power supply capabilities of model SPPS605-2KD, showing independent 60V 5A outputs, series 120V 5A output, and parallel 60V 10A output.
4-in-1 DC Power Supply Capabilities (SPPS605-2KD example).
Instructions for one-key series and parallel output for SPPS605-2KD, showing how to press INDEP for two-way 0-60V 0-5A, SER for single-way 0-120V 0-5A, and PAR for single-way 0-60V 0-10A.
One-Key Series and Parallel Output for SPPS605-2KD.

Data Storage and Recall

  • The power supply supports 8 data sets for quick recall.
  • For Channel 1, use M1 and M2 buttons to store and recall settings.
  • For Channel 2, use M3 and M4 buttons to store and recall settings.
  • In Series and Parallel modes, M1/M2 can be used to store data. Data stored in different modes with the same memory key will not be mixed.
Diagram showing the new upgraded storage function with M1-M4 buttons. It illustrates how M1/M2 are used for CH1 in independent mode, and M1/M2 are used for series and parallel modes.
New Upgraded Storage Function (M1-M4).

Protection Functions (OCP/OVP)

  • Over Current Protection (OCP): Press the OCP button to activate. Set the rated current value. If the output current exceeds this value, the power supply will automatically turn off the output to protect the load.
  • Over Voltage Protection (OVP): Press the OVP button to activate. Set the rated voltage value. If the output voltage exceeds this value, the power supply will automatically turn off the output to protect the load.
Image demonstrating the Short Circuit Killer feature with OCP active. The power supply alarms and stops output to protect the load device when short-circuited. A fan is shown connected to the output, with a lock icon indicating protection.
Short Circuit Killer (OCP/OVP).

Panel Lock and Mute Function

  • Panel Lock: Press the Lock button (padlock icon) to prevent accidental changes to settings during operation.
  • Mute Function: Press the Mute button (speaker icon) to turn off the button sound for a quiet working environment.
Demonstration of Lock and Mute functions, along with other controls.

Maintenance

  • Keep the power supply clean and free from dust. Use a soft, dry cloth for cleaning.
  • Ensure adequate ventilation around the unit to prevent overheating. Do not block the ventilation openings.
  • Avoid operating the device in environments with excessive moisture, extreme temperatures, or corrosive gases.
  • If the device requires service, contact qualified personnel. Do not attempt to repair it yourself.

Troubleshooting

Problem Possible Cause Solution
No power/display off Power cord disconnected, power switch off, power outage. Check power cord connection, ensure power switch is ON, verify power outlet.
No output voltage/current Output switch OFF, OCP/OVP triggered, load disconnected. Press OUTPUT button to turn ON, check OCP/OVP settings and reset if triggered, verify load connections.
Settings cannot be changed Panel lock function is active. Press the Lock button (padlock icon) to unlock the panel.
Unexpected beeping sound Mute function is off, or an error/protection is active. Press the Mute button (speaker icon) to silence. Check for OCP/OVP activation.

Specifications

The KUAIQU SPPS-2KD series offers various models with different voltage and current ratings. Below are the general specifications and a detailed table for common models:

  • High resolution: 1mV / 1mA
  • Groups of Memory: 8 groups (CH1&CH2: 2 groups each, series/parallel mode: 2 groups each)
  • Dual Channels/Series/Parallel: Have OCP+OVP function
  • Dedicated Series-Parallel Output Port
  • Panel Lock Function with Buzzer
  • Encoder adjustment
  • USB/RS-232/RS-485 communication interface
  • Support negative voltage 0-positive voltage output mode
Detailed specification table for KUAIQU SPPS-2KD series DC Power Supplies, including models SPPS305-2KD, SPPS3010-2KD, SPPS605-2KD, SPPS1203-2KD. It lists rated values for voltage, current, and power in independent, series, and parallel modes, along with USB regulation, line regulation, load regulation, setting resolution, readback resolution, setting accuracy, readback accuracy, ripple, rise time, fall time, dynamic response, efficiency, input voltage/current, and size/net weight.
Technical Specifications for SPPS-2KD Series.

User Tips

  • To prevent accidental changes to your voltage and current settings during operation, always engage the Panel Lock function.
  • If you prefer a silent working environment, utilize the Mute Key to turn off the audible feedback from button presses.
  • When working with sensitive components, always set your OCP (Over Current Protection) and OVP (Over Voltage Protection) limits before enabling the output to prevent damage.
  • Take advantage of the 8 data storage sets (M1-M4) to quickly recall frequently used voltage and current configurations for different projects.

Warranty and Support

This product is manufactured under strict quality control standards. For any technical assistance or warranty claims, please contact the seller or manufacturer directly. Keep your purchase records for verification.

For further information or support, please refer to the official product page or contact the Electrical Instruments Tools Store.

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