OWON HDS25 Dual Channel Handheld Digital Oscilloscope Multimeter User Manual

1. Introduktion

The OWON HDS25 is a portable 2-in-1 electronic test instrument combining a digital oscilloscope and a multimeter. This device is designed for field use, maintenance, and educational applications, offering a compact and lightweight solution for various electrical measurements.

Nøglefunktioner omfatter:

• Dual Channel Oscilloscope with 25 MHz bandwidth and 250 MSa/s real-time sample sats.
• 20,000 count digital multimeter for precise measurements.
• 3.5-inch high-resolution LCD display.
• Built-in rechargeable lithium battery for portability.
• Support for cursor test, 7 types of automatic measurements, and auto-calibration.
• PC software support and SCPI compatibility for advanced control and data analysis.

Image 1.1: The OWON HDS25 highlighting its 2-in-1 oscilloscope and multimeter capabilities, including 25MHz bandwidth, 20,000 counts, and save function.

2. Sikkerhedsoplysninger

Before operating the device, please read and understand all safety instructions. Failure to follow these instructions may result in electric shock, fire, or damage to the device.

• Brug ikke enheden, hvis den ser ud til at være beskadiget eller ikke fungerer korrekt.
• Ensure the correct function and range are selected before making any measurements.
• Do not exceed the maximum input ratings for voltage og nuværende.
• Use only the probes and accessories supplied or recommended by OWON.
• Avoid operating the device in wet or damp forhold.
• Disconnect power to the circuit under test before connecting or disconnecting probes.
• Refer to the warning label on the device for specific electrical shock prevention information.

3. Pakkens indhold

Kontroller, at alle genstande er til stede og ubeskadigede ved udpakning:

• OWON HDS25 Handheld Digital Oscilloscope Multimeter
• Oscilloscope Probe(s)
• Multimeter Test Leads (banana plug type)
• USB-A to USB-C Charging and Data Cable
• Brugermanual
• Calibration Tool (e.g., mini screwdriver for probe compensation)

4. Enhed overview

The OWON HDS25 features a clear 3.5-inch LCD display and an intuitive control panel. Below is a diagram illustrating the main components and controls.

Billede 4.1: Forside view of the OWON HDS25 with key components labeled.

1. Signal Input Connector (BNC): Til tilslutning af oscilloskopprober.
2. 3.5-tommer skærm: Shows waveform, measurement data, and menu options.
3. Multifunction Channel Buttons (F1-F4): Context-sensitive function keys.
4. Mode knap: Switches between Oscilloscope, Multimeter, and other modes.
5. Systemknap: Accesses system settings, including language and factory reset.
6. Gem knap: Saves current settings, waveforms, or data.
7. Tænd / sluk-knap: Tænder eller slukker for enheden.
8. Trig/Δ Button: Accesses trigger menu or relative value function.
9. DMM Input Terminals (A, mA, COM, VΩ+C): Til tilslutning af multimeter testledninger.
10. Horizontal Adjustment (HOR) Button: Adjusts horizontal scale/time base in oscilloscope mode.
11. Returknap: Navigerer tilbage i menuer.
12. Measure Range Button: Selects measurement range in multimeter mode or accesses measurement options in oscilloscope mode.
13. Piletasterne: Navigation within menus and waveform adjustments.
14. Auto -knap: Auto-sets oscilloscope parameters or auto-ranges in multimeter mode.
15. Stop/Run Button: Pauses or resumes waveform acquisition.

5. Opsætning

5.1 Opladning af enheden

The OWON HDS25 is equipped with a built-in 2000mAh lithium battery. Before first use, fully charge the device using the provided USB-C cable and a compatible USB power adapter (not included).

• Connect the USB-C cable to the device's USB-C port (located under the rubber cover on the side).
• Connect the other end of the USB cable to a USB power source.
• Opladningsindikatoren på enheden viser opladningsstatus.

Image 5.1: The OWON HDS25 featuring a built-in 2000mAh lithium battery and a USB Type-C charging port.

5.2 Indledende tænding

Press and hold the Power On/Off button to turn on the device. The device will typically start in the last used mode. You can change the language and other system settings via the 'System' button.

6. Betjening af oscilloskopet

The oscilloscope function allows for visualization and analysis of electrical signals over time.

6.1 Tilslutning af sonder

• Connect the oscilloscope probe(s) to the BNC input connector(s) on the top of the device.
• Ensure the probe's ground clip is securely connected to the circuit's ground.
• Connect the probe tip to the test point of the signal you wish to measure.

6.2 Grundlæggende måling

• Press the 'Mode' button to select the Oscilloscope function.
• Press the 'Auto' button. The device will automatically adjust the vertical and horizontal scales and trigger settings to display a stable waveform.
• Use the 'HOR' button and arrow keys to adjust the horizontal time base.
• Use the 'CH1/2' button (if applicable) and arrow keys to adjust the vertical scale (Volts/Div) for each channel.
• The 'Trig/Δ' button allows access to trigger settings for stable waveform capture.

6.3 Automatic Measurements and Cursor Test

The HDS25 supports 7 types of automatic measurements (e.g., Vpp, Vmax, Vmin, Freq, Period) and cursor tests for precise voltage and time readings on the waveform.

• Press the 'Measure Range' button to access automatic measurement options.
• Navigate through the options using the arrow keys and select desired measurements.
• For cursor tests, activate the cursor function and use arrow keys to position the cursors on the waveform.

7. Operating the Multimeter

The multimeter function provides precise digital measurements of various electrical parameters.

7.1 Tilslutning af testledninger

• Connect the red test lead to the VΩ+C terminal and the black test lead to the COM terminal for voltage, resistance, capacitance, and diode measurements.
• For current measurements, connect the red test lead to the 'A' terminal (for high current) or 'mA' terminal (for low current) and the black test lead to the COM terminal.

7.2 Basic Multimeter Measurements

• Press the 'Mode' button to select the Multimeter function.
• Use the 'Measure Range' button to cycle through measurement types (Voltage, Current, Resistance, Capacitance, Continuity, Diode).
• The device supports Auto Range and True RMS for accurate readings.
• For continuity tests, the device will emit an audible tone if continuity is detected.

8. Datastyring

The HDS25 allows for saving oscilloscope settings, reference waveforms, and measurement data.

8.1 Lagring af data

• Press the 'Save' button to store current oscilloscope settings or waveforms.
• Follow the on-screen prompts to name and save the file.
• Saved data can be recalled for later analysis or comparison.

8.2 PC-forbindelse

The device supports connection to a PC via the USB-C port for data transfer and remote control.

• Install the OWON PC software (available from the manufacturer's webwebsted) på din computer.
• Connect the HDS25 to your PC using the USB-C cable.
• Use the PC software to read and analyze stored data (CSV, images) or control the oscilloscope functions remotely.

9. Vedligeholdelse

9.1 Rengøring

• Tør enheden c afasing med en blød, damp klæde. Brug ikke slibende rengøringsmidler eller opløsningsmidler.
• Ensure no moisture enters the device through ports or openings.

9.2 Opbevaring

• Opbevar enheden et køligt, tørt sted, væk fra direkte sollys og ekstreme temperaturer.
• Hvis batteriet opbevares i længere perioder, skal du sørge for, at det er delvist opladet (ca. 50%) for at forlænge dets levetid.

10. Fejlfinding

If you encounter issues with your OWON HDS25, refer to the following common problems and solutions:

• Enheden tændes ikke: Sørg for, at batteriet er opladet. Tilslut enheden til en USB-strømkilde, og prøv igen.
• Ingen bølgeform vises i oscilloskoptilstand: Check probe connections. Ensure the 'Auto' button has been pressed or adjust vertical/horizontal scales and trigger settings manually. Verify the signal source is active.
• Forkerte multimeteraflæsninger: Ensure test leads are correctly connected to the appropriate terminals. Verify the correct measurement function and range are selected.
• PC-software registrerer ikke enhed: Ensure the USB-C cable is properly connected. Install the correct drivers and PC software from the OWON webwebsted.
• Unstable waveform: Adjust the trigger level and trigger mode (e.g., Edge, Auto, Normal) to stabilize the waveform.

For persistent issues, contact OWON customer support.

11. Specifikationer

12. Garanti og support

OWON products are manufactured to high-quality standards. For warranty information, technical support, or service inquiries, please refer to the warranty card included with your product or visit the official OWON webwebsted. Behold din købskvittering som købsbevis i tilfælde af garantikrav.