1. Introduction
The OWON SPM3103 is a versatile programmable DC power supply integrated with a 4 1/2 digit digital multimeter. Designed for laboratory and professional use, it offers precise voltage and current regulation, advanced protection features, and comprehensive measurement capabilities. Its compact design makes it suitable for various applications including electronics repair, battery charging, and aging tests.
2. Product Overview
2.1 Front Panel
The front panel features a 2.8-inch LCD, control buttons, an adjustment knob, and input/output terminals. Key components include:
- 2.8-inch LCD: Displays voltage, current, capacitance, resistance, and other measurement data.
- F1-F4 Buttons: Press to switch menus.
- V Button: Voltage setting / To switch AC voltage or DC voltage.
- I Button: Current setting / To switch AC current or DC current.
- Ω/OVP / ÷/OCP Button: Over voltage protection, Over current protection / Switch resistance, capacitance, diode and continuity measurement types.
- DISP Button: Switch different display modes.
- Mode Button: Switch between DC power supply or Multimeter modes.
- Adjustment Knob: For precise adjustments of settings.
- On/Off Button: Channel output on/off button; long press to turn on the automatic output function.
- Multimeter Voltage and Current Measurement Sockets: Red is positive and black is negative.
- COM Terminal: Common ground for multimeter measurements.
- Front USB Port: 5V/1A output.
2.2 Rear Panel
The rear panel includes essential connections and safety features:
- Intelligent Temperature Control Fan: For efficient cooling.
- Power Cord Socket: For connecting the AC power cord.
- Fuse: Overcurrent protection for the device.
- Power Switch: Main power control for the unit.
- USB Device Communication Port: Supports SCPI commands for remote control.
WARNING: To avoid electric shock, the power cord protective grounding conductor must be connected to ground. Do not remove covers. Refer servicing to qualified personnel.
3. Package Contents
The standard package includes the following items:
- Main Device (OWON SPM3103)
- Quick Guide
- Power Cord
- Multimeter Leads (Red and Black)
- Ground Wire
- Fuse
4. Setup
- Unpacking: Carefully remove the device and all accessories from the packaging. Inspect for any damage.
- Power Connection: Connect the provided power cord to the power cord socket on the rear panel of the device, then plug it into a grounded AC power outlet. Ensure the grounding conductor is properly connected.
- Initial Power On: Flip the power switch on the rear panel to the 'ON' position. The device will perform a self-test and display the main interface.
- Connecting Test Leads: For multimeter functions, connect the red multimeter lead to the positive (+) terminal and the black multimeter lead to the negative (-) or COM terminal as required for your measurement.
5. Operating Instructions
5.1 DC Power Supply Operation
- Setting Voltage/Current: Use the 'V' and 'I' buttons to select voltage or current parameters, then use the adjustment knob to set the desired values.
- Over Voltage Protection (OVP) / Over Current Protection (OCP): Press the 'Ω/OVP' or '÷/OCP' button to access protection settings. Set appropriate limits to safeguard your circuit.
- Constant Voltage (CV) / Constant Current (CC) Mode: The device automatically switches between CV and CC modes based on the load. CV mode maintains a constant output voltage, while CC mode maintains a constant output current.
- List Waveform Editing Output: The device supports editing and outputting up to 10 groups of timing waveforms. Refer to the detailed manual for programming steps.
- Memory Shortcut Parameters: Store and recall up to 4 groups of frequently used settings for quick output.
- Channel Output On/Off: Press the 'On/Off' button to toggle the channel output. Long press to activate the automatic output function.
5.2 Multimeter Operation
The SPM3103 integrates a 4 1/2 digit multimeter for various measurements. To switch to multimeter mode, press the 'Mode' button until the multimeter interface is displayed.
Video: Multimeter Measurement Demonstration
- Measuring Resistance: In multimeter mode, press the 'Ω/OVP' button to cycle through resistance measurement. Connect the test leads across the component to measure its resistance.
- Measuring Continuity: Continue pressing the 'Ω/OVP' button to select continuity test. If the circuit's resistance is less than 50Ω, the buzzer will sound.
- Measuring Diode: Select diode test using the 'Ω/OVP' button. Connect the test leads to the diode to measure its forward voltage drop.
- Measuring Capacitance: Select capacitance measurement using the 'Ω/OVP' button. Connect the test leads to the capacitor to measure its capacitance.
- Measuring Voltage/Current: Use the 'V' or 'I' buttons to select AC or DC voltage/current measurement. Connect the test leads appropriately.
The integrated multimeter is suitable for various applications including battery testing, circuit debugging, and component verification.
6. Maintenance
- Cleaning: Use a soft, dry cloth to clean the exterior of the device. Do not use abrasive cleaners or solvents.
- Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
- Safety: Always disconnect the power supply before cleaning or performing any maintenance. Do not attempt to open the casing or repair the device yourself. Refer to qualified personnel for servicing.
- Fuse Replacement: If the fuse blows, replace it with one of the same type and rating (e.g., 250V, F5A). Ensure the device is disconnected from power before replacing the fuse.
7. Troubleshooting
- No Power:
- Check if the power cord is securely connected to both the device and the power outlet.
- Verify that the power switch on the rear panel is in the 'ON' position.
- Inspect the fuse on the rear panel. If blown, replace it with a fuse of the correct rating.
- No Output Voltage/Current:
- Ensure the channel output is turned 'ON' using the front panel 'On/Off' button.
- Check if OVP or OCP limits have been triggered. Adjust settings if necessary.
- Verify that the test leads are correctly connected to the output terminals and the load.
- Incorrect Multimeter Readings:
- Ensure the device is in the correct multimeter measurement mode (e.g., Resistance, Capacitance).
- Check the connection of the multimeter leads to the component being measured.
- Verify that the component is not damaged or short-circuited.
- SCPI Communication Issues:
- Ensure the correct USB drivers are installed on your computer.
- Verify that the SCPI software is compatible with the SPM3103 model.
- Check the USB cable connection.
8. User Tips
- Software Compatibility: For advanced control and data logging via SCPI, ensure you download the latest software and drivers from the official OWON website to ensure compatibility with your SPM3103 model.
- Regular Calibration: While the device is factory calibrated, consider periodic calibration for critical applications to maintain measurement accuracy over time.
- Proper Lead Connection: Always double-check the polarity and connection points of your test leads, especially when switching between power supply and multimeter functions, to prevent damage to the device or the circuit under test.
9. Specifications
9.1 General Specifications
| Model | SPM3051 | SPM6053 | SPM3103 | SPM6103 |
|---|---|---|---|---|
| Channel | Single Channel Output | |||
| Total Output Power | 150W | 300W | ||
| Channel Output | 0 - 30V / 0 - 5A | 0 - 60V / 0 - 5A | 0 - 30V / 0 - 10A | 0 - 60V / 0 - 10A |
| Display | 2.8 inch color LCD display | |||
| Interface | USB Device | |||
| Dimension (W x H x D) | 82mm(L)*142mm（H）*226mm（D） | |||
| Working Temperature | 0-40℃ | |||
| Weight | Approx. 1.5 kg | |||
9.2 DC Power Specifications
The instrument must be operated continuously for more than 30 minutes at the specified temperature to ensure the following parameters.
| Model | SPM3051 | SPM6053 | SPM3103 | SPM6103 | |
|---|---|---|---|---|---|
| Rated Output (0℃-40℃) | Voltage | 0 - 30V | 0 -60V | 0 - 30V | 0 -60V |
| Current | 5A | 5A | 10A | 10A | |
| Output Power | 150W | 300W | 300W | 300W | |
| Load Regulation | Voltage | ≤30mV | |||
| Current | ≤20mA | ||||
| Power Regulation | Voltage | ≤30mV | |||
| Current | ≤20mA | ||||
| Setting Resolution | Voltage | 10mV | |||
| Current | 1mA | ||||
| Readback Resolution | Voltage | 10mV | |||
| Current | 1mA | ||||
| Value Resolution (within 12 months) (25℃±5℃) | Voltage | ≤0.1% ± 20mV | ≤0.1% ± 30mV | ||
| Current | ≤0.05% ± 10mA | ||||
| Readback Value Resolution (25℃±5℃) | Voltage | ≤0.1% ± 20mV | ≤0.1% ± 30mV | ||
| Current | ≤0.1% ± 10mA | ||||
| Ripple/Noise(*) | Voltage(Vp-p) | ≤30mVp-p | ≤50mVp-p | ||
| Voltage (rms) | ≤3mVrms | ≤5mVrms | |||
| Current (rms) | ≤30mAp-p | ||||
| Output temperature coefficient (0℃-40℃) | Voltage | 100ppm/℃ | |||
| Current | 200ppm/℃ | ||||
| Readback temperature coefficient | Voltage | 100ppm/℃ | |||
| Current | 200ppm/℃ | ||||
| Response Time (50%-100% rated load) | ≤1.0ms | ||||
| Storage | 4 groups of data | ||||
*Noise bandwidth 20MHz, ripple bandwidth 1MHz, connect 10uF electrolytic capacitor in parallel with 0.1uF ceramic capacitor to the output terminal for testing.
9.3 Multimeter Specifications
| Full Scale Reading | 4½ digits | Auto Range | √ |
|---|---|---|---|
| Measure | Voltage, Current, Capacitance, Resistance, Continue, Diode(0-2V) test | ||
| Capacitance | 20.000nF, 200.00nF, 2.0000uF, 20.000uF, 200.00uF, 2.0000mF: ±(3.0%±10digit) | ||
| Voltage | DCV: 200.00mV: ±(0.3%±10digit), 2.0000V, 20.000V, 200.00V, 1000V: ±(0.3%±5digit) ACV: 200.00mV, 2.0000V, 20.000V, 200.00V: ±(0.8%±10digit) 750V: ±(1%±10digit) | ||
| Current | DCA: 200.00mA:±(0.8%±10digit), 10.000A: ±(2.5%±10digit) ACA: 200.00mA:±(1%±10digit), 10.000A: ±(2.8%±10digit) | ||
| Resistance | 200.00Ω, 2.0000kΩ, 20.000kΩ, 200.00kΩ, 2.0000MΩ: ±(0.8%±10digit), 20.000MΩ: ±(1%±3digit) 100MΩ: ±(5%±10digit) | ||
Specifications subject to change without prior notice.
10. Warranty and Support
OWON products are designed and manufactured to the highest quality standards. This product is typically covered by a 1-year limited warranty from the date of purchase, covering defects in materials and workmanship under normal use.
For technical support, warranty claims, or service inquiries, please contact OWON customer service:
- Website: www.owon.com.cn
- Email: info@owon.com.cn
Please have your product model and purchase information ready when contacting support.
