UNI-T UDP3303C-U Programmable Linear DC Power Supply
Instruments.uni-trend.com
Introduction
The UDP3303C-U DC power supply features three independent outputs, offering a cost-effective solution with excellent performance, reliable output, and a clear interface. The instrument supports constant voltage (CV) and constant current (CC) modes, along with short-circuit and over-voltage protection functions, making it suitable for various test requirements.
Features
- High precision 4-digit voltage and current display
- Over voltage/current/temperature protection
- Output voltage/current settings viewable
- USB-Device, RS232 interface
- Shutdown memory
- Keyboard lock
- Intelligent temperature-controlled fan
- 5V/2A USB charging interface
- 5 sets of setup storage: M1-M5
Design Features
3CH Outputs, High Precision Display: The front panel displays detailed voltage, current, and power for three channels (CH1, CH2, CH3). CH1 and CH2 show 32.00V, 3.200A, and 102.4W. CH3 indicates 5.0V and is in the OFF state.
Five Sets of Settings to Save and Recall: The device includes dedicated buttons (M1-M5) for storing and recalling up to five different setup configurations.
Control Interfaces and Functions
Remote Control Digital I/O Interface: Located on the rear panel, this interface allows for external control. The documentation notes that external wiring short-circuiting pins 1 and 2 will open the output, and disconnecting these pins will turn off the output.
Front Panel Functions: The front panel features controls for buzzer switch, key lock, shutdown memory, and a SET VIEW function.
Technical Index
| Parameter | Specification | UDP3303C-U |
|---|---|---|
| Output voltage (CH1/CH2) | 0~30V | |
| Output current (CH1/CH2) | 0~3A | |
| Output power | 195W | |
| Resolution | 10mV, 1mA | |
| Power regulation | CV Mode | ≤0.01%+3mV |
| CC Mode | ≤0.2%+3mA | |
| Load regulation | CV Mode | ≤0.01%+3mV |
| CC Mode | ≤0.2%+3mA | |
| Programming accuracy (25°C±5°C) | Voltage | <0.1%+30mV |
| Current | ≤0.5%+2mA | |
| Ripple and noise (20Hz~20MHz) | Voltage | <1mVrms |
| Current | ≤3mArms | |
| Temperature coefficient | Voltage, Current | ≤300ppm |
| Parallel Mode | Power regulation | ≤0.01%+3mV |
| Load regulation | ≤0.01%+3mV | |
| Power regulation | ≤0.01%+5mV | |
| Series Mode | Load regulation | ≤300mV |
| Error | ≤0.5%±10mV (10~30V no-load), (access load ≤ 300mV) ≤0.5%±30mV (0~9.99V no-load), (access load ≤ 300mV) | |
| CH3 output features | Voltage | 1.8V/2.5V/3.3V/5.5V (±3% Can be fine-tuned) |
| Current | 3.2A | |
| Power regulation (25°C±5°C) | ≤5mV | |
| Load regulation (25°C±5°C) | ≤15mV | |
| USB(CH4) | Output Voltage | 5V±0.25V |
| Output Current | 2A |
General Characteristics
- Power: AC 100V/120V/220V/230V ±10%, 50Hz/60Hz
- Display: EBTN LCD
- Product net weight: 8.8kg
- Product size (W×H×D): 240mm×168mm×347mm
- Standard quantity per carton: 2 pcs
- Standard carton size: 445mm×365mm×300mm
- Standard carton gross weight: 12kg
Ordering Information
Model: UDP3303C-U
Description: Programmable Linear DC Power Supply (3-Channel, 30V, 3A)
Standard Accessories: Power cord, USB interface cable, Alligator clip test line UT-D14
Note: Limited by the output terminal structure, the voltage load adjustment rate is not guaranteed.
Limited Warranty and Liability
UNI-T guarantees that the Instrument product is free from any defect in material and workmanship within three years from the purchase date. This warranty does not apply to damages caused by accident, negligence, misuse, modification, contamination, or improper handling. For warranty service, please contact your seller directly. UNI-T is not responsible for any special, indirect, incidental, or subsequent damage or loss caused by using this device. The warranty period for probes and accessories is one year. Visit instrument.uni-trend.com for full warranty information.
Learn more at: www.uni-trend.com
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UNI-T is the licensed trademark of UNI-TREND TECHNOLOGY (CHINA) CO., Ltd. UNI-T products are protected under patent laws in China and internationally. Licensed software products are the properties of UNI-Trend and its subsidiaries or suppliers. This manual contains information that replaces all earlier published versions. Product information is subject to update without notice.
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Contact Information:
Headquarter
UNI-TREND TECHNOLOGY (CHINA) CO., Ltd.
Address: No.6, Industrial North 1st Road, Songshan Lake Park, Dongguan City, Guangdong Province, China
Tel: (86-769) 8572 3888
Europe
UNI-TREND TECHNOLOGY EU GmbH
Address: Affinger Str. 12, 86167 Augsburg Germany
Tel: +49 (0)821 8879980
North America
UNI-TREND TECHNOLOGY US INC.
Address: 3171 Mercer Ave STE 104, Bellingham, WA 98225
Tel: +1-888-668-8648
