OWON ODP3031 Linear Programmable DC Power Supply User Manual

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.

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 any operations, please read the following safety precautions to avoid any possible bodily injury and prevent this product or any other products connected from damage. In order to avoid any contingent danger, this product is only used within the range specified.

Check AC power input setting according to the standards in your own country (see Page 10, "AC Power Input Setting").

Only the qualified technicians can implement the 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 terminal.
• Check all Terminal Ratings. To avoid fire or shock hazard, check all ratings and markers of this product. Refer to the user's 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 Proper Fuse. Use only the specified type and rating fuse for this instrument.
• Avoid exposed circuit. Do not touch exposed junctions and components when the instrument is powered.
• Do not operate if in any doubt. If you suspect damage occurs to the instrument, have it inspected by qualified service personnel before further operations.
• Use your instrument in a well-ventilated area. Please keep well ventilated and inspect the intake and fan regularly.
• Do not operate in wet conditions. In order 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. In order 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 the 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: It indicates an injury or hazard may immediately happen.

Warning: It indicates an injury or hazard may be accessible potentially.

Caution: It indicates a potential damage to the instrument or other property might occur.

Safety Symbols

Symbols on the Product:

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

3. General Characteristics

OWON ODP3031 products are new high-performance programmable linear DC power supplies. The excellent features of this series include up to 100 output groups with configurable timer, high-resolution LCD display, extremely clean ripple and noise, comprehensive over-voltage over-current over-temperature protection, user friendly interface and panel layout, and variety standard interfaces to meet diverse test requirements.

Features and benefits:

• Outstanding line regulation rate: ≤0.01%+3mV(voltage), ≤0.1%+3mA(current);
• Outstanding load regulation rate: ≤0.01%+3mV(voltage), ≤0.2%+3mA(current);
• Low ripples noise: ≤300 µVrms / 2 mVpp;
• Up to 100 groups time settings;
• High-precious resolution output;
• 3.9 inch high resolution (480*320 pixels) TFT LCD display;
• Interface: USB2.0, RS232.

4. Quick Start

This chapter will deal with the following topics mainly:

• Front/Rear Panel Overview
• User Interface Overview
• How to Implement General Inspection
• How to Implement Power-On Check
• How to Implement Output Inspection
• Instruction of the System Menu Operation

4.1 Front/Rear Panel and User Interface

4.1.1 Front Panel

4.1.2 Rear Panel

4.1.3 User Interface

User interface in Normal status

User interface in Timer status

4.2 General Inspection

After you get a new ODP3031 power supply, it is recommended that you should make a check on the instrument according to the following steps:

1. Check whether there is any damage caused by transportation. If it is found that the packaging carton or the foamed plastic protection cushion has suffered serious damage, do not throw it away first till the complete device and its accessories succeed in the electrical and mechanical property tests.
2. Check the Accessories The supplied accessories have been already described in the "Appendix A: Enclosure" of this Manual. Please ensure that all the listed accessories are present and undamaged, if any problems are found please contact your distributor or OWON's local office.
3. Check the Complete Instrument If there is any physical damage, operational fault, or performance issue please contact your distributor or OWON's local office. If there is any transportation damage to the instrument please ensure you keep the original packaging. Ideally you should always keep the original packaging if the instrument must be returned for repair.

4.3 Power-On Check

4.3.1 AC Power Input Setting

ODP3031 adopt 110V/220V AC power source. Users should regulate the voltage scale of the Power Switch according to the standards in their own country (see Figure 4-2) at the rear panel and use an appropriate fuse.

To change the input voltage scale of the instrument, do the following steps:

1. Turn off the power button at the front panel and remove the power cord.
2. Check if the fuse installed before leaving factory (250 V, F3 A) can match with the selected voltage scale; if not, pry the cover open using a straight screwdriver (see 5 in Figure 4-2), change the fuse.
3. Regulate the Power Switch to the right voltage scale.

4.3.2 Power On

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. Press down the power button at the front panel, the orange and blue key is lighted; the screen shows the boot screen.
3. Press any key to enter.

4.4 Output Inspection

Output inspection is to ensure that the instrument can achieve its rated outputs and properly respond to operation from the front panel. For the procedures below, it is suggested that you read "Turn On/Off the Output" on P14 and "Set the Output Voltage/Current" on P14.

4.4.1 Voltage Output Inspection

The following steps verify basic voltage functions without load:

1. When the instrument is under no load, power on it; make sure that the output current setting value is none-zero.
2. Turn on the channel output. The ON/OFF and Volt/CV key is lighted, which indicates the channel you opened is in Constant Voltage output mode.
3. Set some different voltage values; check if the actual voltage value displayed is close to the set voltage value, and to check if the actual current value displayed is nearly zero.
4. Check that if the output voltage can be adjusted from zero to the maximum rating 30V.

4.4.2 Current Output Inspection

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

1. Power on the instrument.
2. Connect a short across (+) and (-) output terminals with an insulated test lead. Use a wire size sufficient to handle the maximum current 3A.
3. Set the output voltage to the maximum rating 30V.
4. Turn on the channel output. The ON/OFF and Curr/CC key is lighted, which indicates the channel you opened is in Constant Current output mode.
5. Set some different current values; check if the actual current value displayed is close to the set current value, and to check if the actual voltage value displayed is nearly zero.
6. Check that if the output current can be adjusted from zero to the maximum rating 3A.
7. Turn off the channel output and remove the short wire from the output terminals.

4.5 System Menu Operation

1. Display the menu Press System key, the System menu is shown on the screen.
2. Choose the menu
   • Press [Up Arrow] / [Down Arrow] direction key or turn the knob to move around the menu items.
   • Press any one of the [Direction Key] direction key, the [Enter Key] key or the knob to enter the submenu; to return to main menu, press the [Left Arrow] direction key.
   • In the submenu, press [Up Arrow] / [Down Arrow] direction key or turn the knob to move around the submenu items.
3. Enter the menu Press the [Enter Key] key or the knob to enter the selected menu item.
4. Exit the menu Press System key to close the menu or the pop-up box. Note: In this document, [Pro Set → O.V.P] means: Enter the Pro Set item in System menu, and then choose the O.V.P submenu.

5. Front Panel Operation

This chapter will deal with the following topics mainly:

• How to Turn On/Off the Output
• Set the Output Voltage/Current
• Over Voltage/Current Protection
• Timing Output
• Save/Recall/ Record Functions
• System Settings
• How to Use Built-in Help

5.1 Turn On/Off the Output

Press the orange ON/OFF key to turn on/off the Fixed output. Press the blue ON/OFF key to turn on/off the Channel output. The ON/OFF key is lighted when the channel is on.

Note: When the channel output is short-circuited, the instrument will sound an alarm.

5.2 Set the Output Voltage/Current

5.2.1 Set the Fixed Output Voltage

Press the 3.3V key or 5V key to switch the fixed output voltage between 3.3V/5V.

5.2.2 Set the Output Voltage/Current of Channel

You can set the output voltage/current through input box. The range of voltage rating is 0~30V; the range of current rating is 0.02~3A.

Note: The output voltage/current cannot be set in Timer status. If you want to set it, you should exit the Timer status first.

1. Press the Volt/CV or Curr/CC key, the input box of Channel output voltage/current will pop up.
2. The key light will start blinking, indicating to input, there are two methods to change the value.
   • Modify: Turn the knob or press the [Up Arrow] / [Down Arrow] direction key to change the value by the unit of cursor position, hold down the [Up Arrow] / [Down Arrow] direction key to change continuously. Press the [Left Arrow] / [Right Arrow] key to move the cursor.
   • Input: Use the numeric keys to enter a desired value, the original value will be cleared, and display the value you entered.
3. Press the [Enter Key] key to confirm.

Note: If the input value is out of the rated range, the box prompts "ERROR"; you need to input another value within the rated range.

5.3 Over Voltage/Current Protection

When the Over Voltage Protection (O.V.P) or Over Current Protection (O.C.P) is enabled, once the output voltage/current reaches the set value of O.V.P/O.C.P, the instrument will cut off the output. The value of O.V.P/O.C.P which causes cutting off will turn red and flashing; the instrument will make a buzzing sound if the buzzer is turned on.

Note: When the instrument disables the output due to protection, after you make some adjustments, the channel must be restarted to output normally.

This function can keep the power output from exceeding the load rating in order to protect the load. The O.V.P/O.C.P can be set separately for different status (normal, timer). You can enable or disable these functions as required. The parameters of the O.V.P/O.C.P set in normal status take effect in normal status. The parameters of the O.V.P/O.C.P set in timer status take effect in timer status.

5.3.1 Set O.V.P

1. Press the O.V.P/O.C.P key repeatedly to switch to "Set O.V.P" setting box; or press the System key, in normal status, enter [O.V.P], in timer status, enter [Pro Set → O.V.P].
2. Press the [Up Arrow] / [Down Arrow] key to switch the state of the O.V.P between "ON" or "OFF", the O.V.P in current status is enabled or disabled.
3. Use the numeric keys to enter the O.V.P value in current status. The maximum is 31.5V. Press the [Enter Key] key to confirm.

5.3.2 Set O.C.P

1. Press the O.V.P/O.C.P key repeatedly to switch to "Set O.C.P" setting box; or press the System key, in normal status, enter [O.C.P], in timer status, enter [Pro Set → O.C.P].
2. Press the [Up Arrow] / [Down Arrow] key to switch the state of the O.C.P between "ON" or "OFF", the O.C.P in current status is enabled or disabled.
3. Use the numeric keys to enter the O.C.P value in current status. The maximum is 3.15A. Press the [Enter Key] key to confirm.

5.4 Timing Output

The timing output function can preset up to 100 groups of timing parameters. When you turn on the timing output, the instrument will output the pre-specified voltage, current in pre-specified time. You can set special O.V.P/O.C.P for timer status; see "Over Voltage/Current Protection" for more details.

5.4.1 Enter/Exit Timer Status

Press Timer to enter/exit timer status. The ? icon identifies the system is in timer status.

5.4.2 Timer Setting

Before turning on the timing output, you should set the timer parameters, including voltage, current and output time. This function allows up to 100 groups of timer parameters. In timer status, press the Set key to enter/exit timer setting interface.

5.4.3 Timer Range

Timer range setting denotes that you can set the last number of timer parameter group and output mode. You can find out the TimerRng submenu of system menu only in timer status. If turn on the timing output, the system will output the pre-set parameters between 0 and the set number at sequence or loop mode.

1. In timer status, Press the System key, enter [TimerRng].
2. The timer range setting box pops up. Use the numeric keys enter a number (0~99), press the [Left Arrow] / [Right Arrow] key to switch between Sequence and Loop, press the [Enter Key] key to confirm.

5.5 Save/Recall/Record

ODP3031 support operations with a USB flash device and local file storage, including: store, recall and delete current setting parameters. The current data of the channel can be recorded into a txt file, which stored in USB disk. You can connect the USB disk to the 1 USB Host interface in Figure 4-2. After connecting the USB disk successfully, an icon ? will be shown at the top of the screen.

5.5.1 Save System Parameters

In Normal Status, press the Save key to save the parameters about the output voltage/current, the O.V.P/O.C.P. You can name the setting files. This function is not available in Timer Status.

1. In Normal Status, press the Save key to enter the function interface (press it again to exit). Press the [Up Arrow] / [Down Arrow] key to choose the storage location as "Local" or "UDisk". Turn the knob to change the selected character in "Save name" input box. Press the [Right Arrow] key to add the next character. Press the [Left Arrow] key to select the previous character. Press the [Backspace Key] key to delete the selected character.
2. Press the [Enter Key] key to store after editing the file name.

5.5.2 Recall and Delete System Parameters File

1. Press the Recall key to enter the function interface (press it again to exit). Press the [Up Arrow] / [Down Arrow] key to choose the storage location. Press the [Enter Key] key to show the list of system parameters files.
2. The list displays the file name and stored date. Turn the knob or press the [Up Arrow] / [Down Arrow] key to select a file, and then press the [Enter Key] key.
3. Two options appear on the screen: "Load" and "Delete". Turn the knob or press the [Left Arrow] / [Right Arrow] key to switch between the options. Press the [Enter Key] key to confirm.

5.5.3 Record the Output

You have to insert a USB disk before using this function. By pressing the Record key, the current data of the channel can be recorded into a txt file, which stored in USB disk.

1. Press the Record key; press the numeric keys to set the interval.
2. Press the [Enter Key] key to start recording. During recording, an ? icon is shown on the status bar.
3. Press the Record key again to stop recording.

5.6 System Settings

You can set the system by operating the System Menu. It is suggested that you should read the "System Menu Operation" on P11 first, so as to be familiar with the menu operation.

5.6.1 Set Language

Press the System key and enter [Language]; choose the desired language. The supported languages include: Chinese, English and so on.

5.6.2 Set Bright

Press the System key and enter [Display → Bright]. Press the [Left Arrow] / [Right Arrow] key or turn the knob to adjust the screen brightness (1~10).

5.6.3 Set Screen Saver Time

The screen saver will run automatically if no operation is taken for any key within the set time. Press any key to resume.

Press the System key and enter [Display → ScrSaver]. Press the [Left Arrow] / [Right Arrow] key or turn the knob to adjust the screen saver time (1~99 minutes). When it is set to "00", the screen saver is disabled.

5.6.4 Set System Time

Press the System key and enter [Sys Set → SysTime]. Press the [Up Arrow] / [Down Arrow] key or turn the knob to set the selected value. Press the [Left Arrow] / [Right Arrow] key to move the cursor. Press the [Enter Key] key to confirm.

5.6.5 Buzzer

Press the System key and enter [Sys Set → Buzzer]. Press the [Enter Key] key to turn on/off the buzzer. When the buzzer is on, an ? icon will be shown on the status bar. You will hear a key tone once a key is pressed down; when the system prompts the instrument will make a buzzing sound, e.g. cutting off the output due to O.V.P/O.C.P. When the buzzer is off, an ? icon will be shown on the status bar.

5.6.6 Short Circuit Protection

Press the System key and enter [Sys Set → ShortCurPro]. Press the [Enter Key] key to check/uncheck it. If you check it, when short circuit occurs, the instrument will cut off the output; uncheck it to still output.

5.6.7 View System Information

Press the System key and enter [SysInfo]. You can view the Serial Number, Software Version and Hardware Version.

5.6.8 Set as Default

Press the System key and choose [Default], press the [Enter Key] key to use the factory defaults, see table below.

Also, default settings for Normal and Timer status:

5.7 Use Built-in Help

1. Press Help function button, the catalog will display in the screen.
2. Press the [Up Arrow] / [Down Arrow] key or turn the knob to choose help topic.
3. Press the [Right Arrow] key to view the details about the topic; press the [Left Arrow] key to go back to the catalog.
4. Press Help again to exit the help, or just do other operations.

6. Communication with PC

ODP3031 Power Supply supports communications with a PC through USB interface. You can use the ODP communication software to set the parameters, control the output of the power supply, and synchronously display the actual output values on the Power Supply screen.

1. Install the software Install the ODP communication software on the supplied CD.
2. Connect the instruments Use a USB data cable to connect the USB Device port in the rear panel of the Power Supply to the USB port of a PC.
3. Install the driver When the Power Supply is turned on, a dialog will appear on the PC screen and guide you to install the USB driver. The driver is in the "USBDRV" folder under the directory where the ODP communication software is installed, such as "C:\Program Files\ODP\USBDRV".
4. Use the software Run the ODP software. Select "Communications → Ports-Settings" menu to set the corresponding communication parameters. To learn about how to operate the software, you can select "Help → Help" to open the help file.

7. Troubleshooting

1. The instrument is powered on but no Display.

• Check if the power is connected properly.
• Check if the Power Switch is in the proper voltage scale.
• Check if the fuse which is 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 our service.

2. The output is abnormal:

• Check if the output voltage is set to 0V. If so, set it to other value.
• Check if the output current is set to 0A. If so, set it to other value.
• When in timer status, check if there is any voltage/current value of timer setting is set to 0. If so, set it to other value.
• If the problem still exists, please contact OWON for our 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, note a hard disk cannot be supported.
• Restart the instrument and insert your USB flash device again.
• If the problem still exists, please contact OWON for our service.

8. Technical Specifications

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

Display

Power

Environment

Mechanical Specifications

Interval Period of Adjustment: One year is recommended for the calibration interval period.

9. Appendix

9.1 Appendix A: Enclosure

Standard Accessories:

• A power cord that fits the standard of the destination country
• A USB data cable
• A CD (PC link application software)
• A User Manual
• A Spare Fuse

9.2 Appendix B: General Care and Cleaning

General Care

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

Caution: To avoid any damage to the instrument, do not exposed 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. Do not make any scuffing on the transparent LCD protection screen when clean the LCD screen.
2. Disconnect power before cleaning your instrument. Clean the instrument with a wet soft cloth not dripping water. It is recommended to scrub with soft detergent or fresh water. To avoid damage to the instrument, do not use any corrosive chemical cleaning agent.

Warning: Before power on again for operation, it is required to confirm that the instrument has already been dried completely, avoiding any electrical short circuit or bodily injury resulting form the moisture.