OWON ODP Series Dual Output Linear Programmable DC Power Supply

Copyright and Company Information

Nov. 2017 edition V1.0.1

Copyright © LILLIPUT Company. All rights reserved.

The LILLIPUT's products are under the protection of the patent rights, including ones which have already obtained the patent rights and those which are applied for. The information in this manual will replace all materials published.

The information in this manual was correct at the time of printing. However, LILLIPUT will continue to improve products and reserves the rights to change specification at any time without notice.

OWON is the registered trademark of the LILLIPUT Company.

Fujian LILLIPUT Optoelectronics Technology Co., Ltd.

No. 19, Heming Road

Lantian Industrial Zone, Zhangzhou 363005 P.R. China

Tel: +86-596-2130430

Web: www.owon.com.cn

Fax: +86-596-2109272

E-mail: info@owon.com.cn

General Warranty

OWON warrants that the product will be free from defects in materials and workmanship for a period of 2 years (1 year for accessories) from the date of purchase of the product by the original purchaser from the OWON Company. This warranty only applies to the original purchaser and is not transferable to a third party.

If the product proves defective during the warranty period, OWON will either repair the defective product without charge for parts and labour, or will provide a replacement in exchange for the defective product. Parts, modules and replacement products used by OWON for warranty work may be new or reconditioned like new. All replaced parts, modules and products become the property of OWON.

To obtain service under this warranty, the customer must notify OWON of the defect before the expiration of the warranty period. Customer shall be responsible for packaging and shipping the defective product to OWON's designated service centre, a copy of the customer's proof of purchase is also required.

This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate maintenance and care. OWON shall not be obligated to furnish service under this warranty a) to repair damage resulting from attempts by personnel other than OWON representatives to install, repair or service the product; b) to repair damage resulting from improper use or connection to incompatible equipment; c) to repair any damage or malfunction caused by the use of non-OWON supplies; or d) to service a product that has been modified or integrated with other products when the effect of such modification or integration increases the time or difficulty of servicing the product.

Please contact the nearest OWON's Sales and Service Offices for services or a complete copy of the warranty statement.

For better after-sales service, please visit www.owon.com.cn and register the purchased product online.

Excepting the after-sales services provided in this summary or the applicable warranty statements, OWON will not offer any guarantee for maintenance definitely declared or hinted, including but not limited to the implied guarantee for marketability and special-purpose acceptability. OWON should not take any responsibilities for any indirect, special or consequent damages.

1. General Safety Requirements

Before use, please read the following safety precautions to avoid any possible bodily injury and to prevent this product or any other connected products from damage. To avoid any contingent danger, ensure this product is only used within the ranges specified.

Only a qualified person should perform internal maintenance.

To avoid Fire or Personal Injury:

• Use Proper Power Cord: Use only the power cord supplied with the product and certified to use in your country.
• Product Grounded: This instrument is grounded through the power cord grounding conductor. To avoid electric shock, the grounding conductor must be grounded. The product must be grounded properly before any connection with its input or output terminals.
• Check all Terminal Ratings: To avoid fire or shock hazard, check all ratings and markings on this product. Refer to the user manual for more information about ratings before connecting to the instrument.
• Do not operate without covers: Do not operate the instrument with covers or panels removed.
• Use the Proper Fuse: Use only the specified type and rating fuse for this instrument.
• Avoid exposed circuit: Be careful when working on exposed circuitry to avoid risk of electric shock or other injury.
• Do not operate if any damage: If you suspect damage to the instrument, have it inspected by qualified service personnel before further use.
• Use your instrument in a well-ventilated area: Please keep well ventilated and inspect the intake and fan regularly.
• Do not operate in damp conditions: To avoid short circuiting to the interior of the device or electric shock, please do not operate in a humid environment.
• Do not operate in an explosive atmosphere: To avoid damages to the device or personal injuries, it is important to operate the device away from an explosive atmosphere.
• Keep product surfaces clean and dry: To avoid the influence of dust or moisture in air, please keep the surface of device clean and dry.

2. Safety Terms and Symbols

Safety Terms

Terms in this manual:

• Warning: Warning indicates conditions or practices that could result in injury or loss of life.
• Caution: Caution indicates the conditions or practices that could result in damage to this product or other property.

Terms on the product:

• Danger: Indicates an immediate hazard or injury possibility.
• Warning: Indicates a possible hazard or injury.
• Caution: Indicates potential damage to the instrument or other property.

Safety Symbols

Symbols on the product:

• Hazardous Voltage
• Protective Earth Terminal
• Public Ground
• Refer to Manual
• Chassis Ground

3. Quick Start

3.1 Front/Rear Panel and User Interface

3.1.1 Front Panel

The front panel provides access to controls and displays for operating the power supply. Key components are indicated in Figure 3-1:

3.1.2 Rear Panel

The rear panel provides connections for power, networking, and external devices. Key components are indicated in Figure 3-2:

3.1.3 User Interface

The user interface displays output status, set values, and system information. Key elements are shown in Figure 3-3:

3.2 General Inspection

When you receive your new power supply, it is recommended that you check the instrument following these steps:

1. Check for transportation damage: If the packaging carton or foamed plastic protection cushion has suffered serious damage, do not discard it until the complete device and its accessories have been electrically and mechanically checked.
2. Check the Accessories: Ensure all listed accessories are present and undamaged. Contact your distributor or OWON's local office if any problems are found.
3. Check the Complete Instrument: If there is any physical damage, operational fault, or performance issue, contact your distributor or OWON's local office. Keep the original packaging, especially if transportation damage is suspected, as it is ideal for returns for repair.

3.3 Power-On Check

1. Connect the instrument to the AC supply using the supplied power cord. Warning: To avoid electric shock, the instrument must be grounded properly.
2. Push the power button on the front panel. The keys will light up, and the screen will show the boot screen.

3.4 Output Inspection

Output inspection ensures the instrument achieves its rated outputs and responds correctly to front panel operations. Refer to "Turn On/Off the Channel Output" and "Set the Output Voltage/Current" for procedures.

3.4.1 Voltage Output Inspection

The following steps verify basic voltage functions without load:

1. With no load, select a channel and ensure the output current setting is not at zero.
2. Turn on the channel output and verify the channel is in Constant Voltage output mode.
3. Set different voltage values on the channel. Check if the actual voltage displayed is close to the set value, and the actual current displayed is nearly zero.
4. Verify that the output voltage can be adjusted from zero to the maximum rating.

3.4.2 Current Output Inspection

The following steps check basic current functions with a short across the power supply's output:

1. Connect a short across the (+) and (-) output terminals using an insulated test lead. Use a wire size sufficient to handle the maximum current.
2. Set the output voltage to the maximum rating on this channel.
3. Turn on the channel output and ensure the channel is in Constant Current output mode.
4. Set different current values on the channel. Check if the actual current displayed is close to the set current value, and the actual voltage displayed is nearly zero.
5. Verify that the output current can be adjusted from zero to the maximum rating.
6. Turn off the channel output and remove the short circuit from the output terminals.

4. Front Panel Operation

4.1 Turn On/Off the Channel Output

Press the orange ON/OFF key to turn on/off the Channel 1 output.

Press the blue ON/OFF key to turn on/off the Channel 2 output.

4.2 Set the Output Voltage/Current

4.2.1 Set the Output Voltage

• Set the output voltage of CH1: Press the orange Volt/CV key. The first digit of the CH1 set voltage will flash, indicating it is editable. Two methods are available:
  • Modify: Turn the knob to change the value. Press the ← or → key to move the cursor. Press the knob or the ↵ key to confirm.
  • Input: Use the numeric keys to input the value. The input box for Channel 1 output voltage will pop up. Enter the desired value and press the ↵ key to confirm.
• Set the output voltage of CH2: Press the blue Volt/CV key to enter edit mode. You can set the value similarly to CH1.

4.2.2 Set the Output Current

• Set the output current of CH1: Press the orange Curr/CC key. The first digit of the CH1 set current will flash, indicating it is editable. Two methods are available:
  • Modify: Turn the knob to change the value. Press the ← or → key to move the cursor. Press the knob or the ↵ key to confirm.
  • Input: Use the numeric keys to input the value. The input box for Channel 1 output current will pop up. Enter the desired value and press the ↵ key to confirm.

  Note: The minimum value for CH1 set current is 50 mA.

• Set the output current of CH2: Press the blue Curr/CC key to enter edit mode. You can set the value similarly to CH1.

4.3 Over Voltage/Current Protection

When Over Voltage Protection (O.V.P) or Over Current Protection (O.C.P) is enabled, the instrument will cut off the output and display a warning if the output voltage/current reaches the set protection value.

Note: When the instrument disables output due to protection, adjustments must be made, and the channel restarted to resume normal output.

This function protects the load by preventing the power output from exceeding the load rating.

4.3.1 Set O.V.P

• Set the O.V.P of CH1: Press the orange Volt/CV key. The first digit of the CH1 set voltage flashes. Press the ↓ key; the first digit of the CH1 O.V.P flashes, indicating it is editable. Two methods are available:
  • Modify: Turn the knob to change the value. Press the ← or → key to move the cursor. Press the knob or the ↵ key to confirm.
  • Input: Use the numeric keys to input. The input box for Channel 1 limit voltage will pop up. Enter the desired value and press the ↵ key to confirm.
• Set the O.V.P of CH2: Press the blue Volt/CV key, then press the ↓ key to enter edit mode. You can set the value similarly to CH1.

4.3.2 Set O.C.P

• Set the O.C.P of CH1: Press the orange Curr/CC key. The first digit of the CH1 set current flashes. Press the ↓ key; the first digit of the CH1 O.C.P flashes, indicating it is editable. Two methods are available:
  • Modify: Turn the knob to change the value. Press the ← or → key to move the cursor. Press the knob or the ↵ key to confirm.
  • Input: Use the numeric keys to input. The input box for Channel 1 limit current will pop up. Enter the desired value and press the ↵ key to confirm.
• Set the O.C.P of CH2: Press the blue Curr/CC key, then press the ↓ key to enter edit mode. You can set the value similarly to CH1.

4.4 M1, M2, M3 Quick Output

You can save three groups of output parameters for CH1 and CH2 for quick outputting. Press the M1, M2, or M3 front panel key to enter the setting interface. Taking M1 as an example:

1. Press the M1 key.
2. In the setting interface, press the ← or → key to move the cursor left and right. Press the ↑ or ↓ key to move the cursor up and down. Use the numeric keys to input values; an input box will pop up. Enter the desired value and press the ↵ key to confirm.
3. In the setting interface, press the ALL key to enable CH1 and CH2 output with the setting parameters. Press the ALL key again to disable the output.

4.5 Programmable Output

The programmable output function is available only for CH1. It can preset up to 100 groups of timing parameters. When enabled, the instrument will output the pre-specified voltage and current at pre-specified times.

4.5.1 Data View

Press the Program key. The Data view menu is selected.

1. The Memory sub menu is selected. Press the ← or → key to select Internal or External memory.
2. Press the ↓ key to select the Import submenu. Press the ↵ key to import data.
3. Press the ↓ key to select the Export submenu. Press the ↵ key to export data.

Note: When memory is set to External, the programmable data file will be exported to a U disk in the directory ODPXXXX\Program (where ODPXXXX is the model).

4. Press the ↓ key to select the Clear Data submenu. Press the ↵ key to clear data.

4.5.2 Output Set

Press the Program key, then turn the knob to select [Output Set].

1. The Cycle Mode sub menu is selected. Press the ← or → key to select Order or Loop.
2. Press the ↓ key to select the Start Point submenu. Use the numeric keys to input (1 to 100), then press the ↵ key to confirm.
3. Press the ↓ key to select the Stop Point submenu. Use the numeric keys to input (1 to 100), then press the ↵ key to confirm.
4. Press the ↓ key to select the Start submenu. Press the ↵ key to enter the data processing interface and enable CH1 output.

4.5.3 Data process

You can set programmable parameters for CH1, including voltage, current, and output time, for up to 100 parameter groups.

Press the Program key, then turn the knob to select [Data process].

Edit:

1. The Edit sub menu is selected. Follow the on-screen instructions. Press the ↵ key to enter the data processing interface.
2. In the data processing interface, press the ← or → key to move the cursor left and right. Press the ↑ or ↓ key to move the cursor up and down. After selecting the parameter, use the numeric keys to enter a desired value, then press the ↵ key to confirm.
3. Press ⌫ to return to the sub menu selection.

Graph process is used to configure the graphical display in the Data processing interface.

1. Press the ↓ key to select the Graph process submenu. Press the ↵ key to enter the editing interface.
2. In the Graph processing interface, press the ← or → key to move the cursor left and right. Press the ↑ or ↓ key to move the cursor up and down. Press the ↵ key to check or uncheck an item. If an item is checked, its corresponding line will be displayed in the chart.
3. Press ⌫ to return to sub menu selection.

4.5.4 Turn On/Off Programmable Output

In the data processing interface:

• Press the orange ON/OFF key to turn on/off the programmable output.
• Press the ↓ key to select the Start submenu. Press the ↵ key to enter the data processing interface and enable CH1 output.

Note: In the process of programmable output, closing the channel output will reset the timer. Turning on the channel again will restart the programmable output and the timer.

4.6 Save Settings/Auto Record

4.6.1 Save Settings

You can store, recall, and delete current setting parameters. Storage memory can be set as internal or external (USB flash device). Up to 100 groups of settings can be saved.

Press the Record key. The Save Settings menu is selected.

1. The Memory sub menu is selected. Press the ← or → key to select Internal or External.
2. Press the ↓ key to select the Save submenu. Press the ← or → key to select the channel (CH1 or CH2). Press the ↵ key to save the setting of the selected channel.

Note: When memory is set to External, the setting will be saved to a U disk as a CSV file in the directory ODPXXXX\Record_Option (where ODPXXXX is the model).

3. Press the ↓ key to select the Delete submenu. A red box will show in the table indicating the selected item. Press the ← or → key to select. Press the ↑ or ↓ key to turn the page. Press the ↵ key to delete. Press ⌫ to return to sub menu selection.
4. Press the ↓ key to select the Recall submenu. A red box will show in the table indicating the selected item. Press the ← or → key to select. Press the ↑ or ↓ key to turn the page. Press the ↵ key to recall. Press ⌫ to return to sub menu selection.

4.6.2 Auto Record

Press the Record key, then turn the knob to select [Auto Record].

1. The Memory sub menu is selected. Press the ← or → key to select Internal or External.
2. Press the ↓ key to select the Interval submenu. Use the numeric keys to set the record interval, then press the ↵ key to confirm.
3. Press the ↓ key to select the Points submenu. Use the numeric keys to set the points, then press the ↵ key to confirm.
4. Press the ↓ key to select the Record Status submenu. Press the ← or → key to select the channel (CH1 or CH2). Press the ↵ key to start recording the output of the selected channel. Press the ↵ key again to stop recording. During recording, the ▶️ icon will be lighted on the status bar.

Note: When memory is set to External, the record file will be saved to a U disk as a CSV file in the directory ODPXXXX\Record_Auto (where ODPXXXX is the model).

4.6.3 View Record

Press the Record key, then turn the knob to select [View Record].

1. Press the ↓ key to select the Memory submenu. Press the ← or → key to select Internal or External.
2. When Memory is set to Internal, press the ↓ key to select the Read submenu. Press the ← or → key to select the channel (CH1 or CH2), then press the ↵ key to read the recording file of the selected channel. If the display mode is set to Table, a red box will show in the table, indicating you can press the ← or → key to turn the page. Press ⌫ to return to sub menu selection.
3. When Memory is set to External, press the ↓ key to select the Export submenu. Press the ← or → key to select the channel (CH1 or CH2), then press the ↵ key to export the recording file of the selected channel onto the U disk. The directory is ODPXXXX\Record_Auto (where ODPXXXX is the model).
4. Press the ↓ key to select the Display submenu. Press the ← or → key to select Graph or Table.
5. Press the ↓ key to select the Clear submenu. Press the ↵ key to clear the recording file.

4.7 Sense mode

Sense mode can only be applied to CH1.

To ensure accuracy of voltage drop during high current output, the power supply is designed with Sense mode. In Sense mode, the system automatically compensates for voltage drop in the load leads, ensuring the specified output value is consistent with the value received by the load. See the connection diagram below.

Note:

• Connect the load to the output terminals using separate connecting wires.
• Keep the wire-pair as short as possible and twist it to reduce lead inductance and noise pickup.
• Do NOT bundle the sense wire-pair together with the load leads; keep the load wires and sense wires separate.

To set the Sense mode:

1. Press the Utility key. The Output mode menu is selected.
2. To enable Sense mode, press the → key. A warning message will prompt that short-circuiting the output terminal is forbidden in Sense mode. While the message is displayed, press the ↵ key to set it as ON.
3. To disable Sense mode, press the ← key to set it as OFF.

4.8 Utility Settings

4.8.1 Language

Press the Utility key, then turn the knob to select [Utility]. The Language sub menu is selected. Press the ← or → key to choose the desired language. Supported languages include: Chinese, English, and so on.

4.8.2 Brightness

Press the Utility key, turn the knob to select [Utility]. Press the ↓ key to select the Brightness submenu. Press the ← or → key to adjust the screen brightness. Brightness can be set to 0%, 25%, 50%, 75%, 100%.

4.8.3 Beeper

Press the Utility key, turn the knob to select [Utility]. Press the ↓ key to select the Beeper submenu. Press the ← or → key to turn the beeper on/off. When the beeper is on, the ? icon will be lighted on the status bar. When prompted, the instrument will make a buzzing sound, e.g., cutting off the output due to O.V.P/O.C.P.

4.8.4 Clock

Press the Utility key, turn the knob to select [Utility]. Press the ↓ key to select the Clock submenu. Use the numeric keys to input, press the ↵ key to confirm. Press the ← or → key to move the cursor.

4.9 System Info

4.9.1 View System Information

Press the Utility key, turn the knob to select [Info]. The Info sub menu is selected. You can view the version, serial number, and checksum.

4.9.2 Set as Default

Press the Utility key, turn the knob to select [Info]. Press the ↓ key to select the Default submenu. Press the ↵ key to use the factory defaults. See the table below.

4.9.3 Update

Use the front-panel USB port to update your instrument firmware using a USB memory device.

USB memory device requirements: This instrument only supports a USB memory device with a FAT32 file system. If the USB memory device does not work properly, format it into the FAT32 format and try again, or try another USB memory device.

Caution: Updating your instrument firmware is a sensitive operation. To prevent damage to the instrument, do not power off the instrument or remove the USB memory device during the update process.

To update your instrument firmware, do the following:

1. Press the Utility key, turn the knob to select [Info]. The Info sub menu is selected. You can view the model and firmware version.
2. From a PC, visit www.owon.com.cn and check if the website offers a newer firmware version. Download the firmware file. The file name must be ODPFW.upp. Copy the firmware file onto the root directory of your USB memory device.
3. Insert the USB memory device into the front-panel USB port on your instrument. If the status icon ?️ appears on the left of the screen, the USB memory device is installed successfully.
4. Press the Utility key, turn the knob to select [Info]. Press the ↓ key to select the Update submenu. Press the ↵ key.
5. The instrument displays a message instructing you not to remove the USB device or power off the instrument until the update process is complete. The progress bar on the screen indicates the update process is in progress.

Note: A firmware update usually takes approximately a minute. Do not remove the USB memory device during the update process. If you accidentally removed the USB memory device during the update process, do not power off the instrument. Repeat the installation process from step 3.

6. Wait until the instrument displays "Firmware upgrade success.", and then it will reboot automatically.

Note: If the operation complete message is not displayed, do not power off the instrument. Repeat the installation process from step 2 using a different type of USB memory device.

7. Remove the USB memory device from the front-panel USB connector.
8. Press the Utility key, turn the knob to select [Info]. The Info sub menu is selected; view the firmware version. Confirm that the firmware has been updated.

4.10 Port Settings

4.10.1 Serial port

Press the Utility key, turn the knob to select [Port Set]. The Serial sub menu is selected.

1. Press the ↵ key to enter the sub menu. The Baud is selected. Press the ← or → key to select the desired baud rate from 1200, 2400, 4800, 9600, 19200, 38400, 57600, or 115200. The default is 115200. Ensure the baud rate matches that of the computer.
2. Press the ↓ key to select Data Bits. Press the ← or → key to select 6, 7, or 8.
3. Press the ↓ key to select Odd-Even. Press the ← or → key to select None, Odd, or Even.
4. Press the ↓ key to select Stop Bits. Press the ← or → key to select 1 or 2.
5. Press ⌫ to return to sub menu selection.

4.10.2 LAN Set

Press the Utility key, turn the knob to select [Port Set]. Press the ↓ key to select the Lan Set submenu.

1. Press the ↵ key to enter edit mode. Set the IP address, subnet mask, gateway, and port. Use the numeric keys to input, press the ↵ key to confirm. Press the ← or → key to move the cursor left and right. Press the ↑ or ↓ key to move the cursor up and down. Press ⌫ to return to sub menu selection.
2. Restart the instrument for the parameter changes to take effect.

4.10.3 LCD Test

The instrument has a screen self-test function to test the LCD screen. Press the Utility key, turn the knob to select [Port Set]. Press the ↓ key to select the Lcd Test submenu.

1. Press the ↵ key to enter the screen test interface.
2. Press the ← or → key to switch the color between red, green, and blue. Observe if the screen has severe color shift, spots, scuffing, or other defects.
3. Press the ↵ key to exit the test.

4.10.4 Key Test

The instrument provides key self-testing to test the front panel keys. Press the Utility key, turn the knob to select [Port Set]. Press the ↓ key to select the Key Test submenu.

1. Press the ↵ key to enter the key test interface.
2. Each shape on the test interface represents a front panel key. Press any front panel key; the corresponding shape on the test interface will turn green.
3. Press the ↵ key to exit the test.

5. Troubleshooting

1. The instrument is powered on but no Display:
   • Check if the power is connected properly.
   • Check if the fuse below the AC Power socket is used appropriately and in good condition (the cover can be pried open with a straight screwdriver).
   • Restart the instrument after the steps above.
   • If the problem still exists, please contact OWON for service.
2. The output is abnormal:
   • Check if the output voltage is set to 0V. If so, set it to another value.
   • Check if the output current is set to 0A. If so, set it to another value.
   • When in programmable output status, check if any voltage/current value is set to 0. If so, set it to another value.
   • If the problem still exists, please contact OWON for service.
3. Cannot identify the USB device correctly:
   • Check if the USB device is in good condition.
   • Check if the used USB device is a flash device; hard disks are not supported.
   • Restart the instrument and insert your USB flash device again.
   • If the problem still exists, please contact OWON for service.

6. Technical Specifications

The specifications below are based on the instrument having run for at least 30 minutes continuously under the specified operating temperature.

7. Appendix

7.1 Appendix A: Packaging

The accessories are subject to final delivery.

Standard Accessories:

• Power Cord
• CD Rom
• User Manual
• USB Cable
• Fuse

Options:

• Banana plug to crocodile clip test leads

7.2 Appendix B: General Care and Cleaning

General Care

Do not store or leave the instrument where the liquid crystal display could be exposed to direct sunlight for long periods of time.

Caution: To avoid any damage to the instrument, do not expose it to any sprays, liquids, or solvents.

Cleaning

Inspect the instrument as often as operating conditions require. To clean the instrument exterior, perform the following steps:

1. Wipe the dust from the instrument surface with a soft cloth. Take care not to scratch the transparent LCD protection screen when cleaning.
2. Disconnect power before cleaning your instrument. Clean the instrument with a damp soft cloth (not dripping with water). It is recommended to clean with soft detergent or fresh water. To avoid damage to the instrument, do not use any corrosive chemical cleaning agents.

Warning: Before reapplying power, ensure that the instrument is completely dry, avoiding any electric shock or electrical short circuit resulting from moisture.