1. Úvod
This manual provides essential instructions for the safe and efficient use of the RIGOL DHO914 Digital Oscilloscope. The DHO914 is a 4-channel oscilloscope featuring a 125 MHz bandwidth, 1.25 GSa/s sampling rate, 12-bit analog-to-digital converter, 50 Mpts memory depth, and a 7-inch 1024x600 pixel touchscreen display. Please read this manual thoroughly before operating the device.
2. Bezpečnostné informácie
Observe the following safety precautions to prevent injury and avoid damage to the instrument or any products connected to it. This device is designed for use by qualified personnel only.
- Zdroj napájania: Use only the power cable supplied with the instrument and ensure it is connected to a grounded power outlet.
- Vetranie: Zabezpečte riadne vetranie. Neblokujte vetracie otvory.
- Prostredie: Operate the instrument in a dry environment, away from moisture, dust, and direct sunlight.
- Sondy: Používajte iba sondy určené pre daný objemtage and current being measured. Ensure probes are properly connected before making measurements.
- Čistenie: Pred čistením odpojte napájanie. Použite mäkkú,amp handričkou; nepoužívajte abrazívne čistiace prostriedky ani rozpúšťadlá.
- servis: Nepokúšajte sa opravovať prístroj sami. Všetok servis zverte kvalifikovanému servisnému personálu.
3. Nastavenie
3.1 Vybalenie a kontrola
Carefully unpack the oscilloscope and check for any signs of damage during transit. Retain the packaging materials for future transport or storage.
3.2 Čo je v krabici
Obrázok 3.2.1: Contents of the RIGOL DHO914 Oscilloscope box. The image displays two packaging boxes, the main oscilloscope unit, an EU power adapter, a USB A-B cable, a ground wire, four passive probes (150MHz), and a warranty card with calibration certificate.
The standard package for the RIGOL DHO914 includes:
- Main Unit (RIGOL DHO914 Digital Oscilloscope)
- Power Cable (EU Power Adapter)
- USB Cable (USB A-B Cable)
- Uzemňovací vodič
- Passive Probes (4 units, 150MHz)
- Warranty Card & Calibration Certificate
3.3 Koniec produktuview
Obrázok 3.3.1: RIGOL DHO914 Physical Overview. This image illustrates the front panel with its 7-inch display and control buttons, the rear panel with various ports, a side view showing its slim profile, and a detailed view of the control buttons. Dimensions are indicated as 265.36mm length, 77.38mm width, and 161.75mm height, with a weight of 1.78kg.
The DHO914 features a compact design with a 7-inch high-definition touchscreen. The front panel includes the display, control knobs, and buttons for various functions. The rear panel provides connectivity options such as USB Device&Host, LAN, and HDMI ports. The device measures approximately 26.53 cm (Length) x 7.74 cm (Width) x 16.17 cm (Height) and weighs 1.78 kg.
3.4 Prvé pripojenie
- Connect the power cable to the oscilloscope's power input and then to a grounded AC power outlet.
- Stlačením tlačidla napájania umiestneného na prednom paneli zapnite zariadenie.
- Connect the passive probes to the analog input channels (CH1, CH2, CH3, CH4) as needed for your measurements. Ensure the probe compensation is correctly adjusted for accurate readings.
- Optionally, connect USB devices, LAN cables, or an HDMI display to the respective ports for extended functionality.
4. Návod na obsluhu
4.1 Základné ovládanie
Upon powering on, the oscilloscope will display the main measurement interface. The 7-inch touchscreen allows for intuitive navigation and parameter adjustment. Alternatively, use the physical buttons and knobs for precise control.
Obrázok 4.1.1: RIGOL DHO914 Main Features. This image shows the oscilloscope's front panel with key specifications overlaid, including 125 MHz bandwidth, 12-bit resolution, 1.25 GSa/s sampling rate, 50 Mpts storage depth, and available interfaces (USB, LAN, HDMI), all controlled via a 7-inch 1024x600 HD touch display.
4.2 Kľúčové vlastnosti a funkcie
- Vysoké rozlíšenie: The 12-bit hardware resolution ensures precise signal capture, even for small signals, due to its ultra-low background noise.
- Šírka pásma a kanály: Features 125 MHz analog bandwidth across 4 analog channels. An optional 16 digital channels are available for mixed-signal analysis.
- Sampling Rate and Memory: Offers a real-time sampling rate of up to 1.25 GSa/s and a deep memory of 50 Mpts, allowing for detailed capture of long signal sequences.
- Rýchlosť zachytávania priebehov: The Ultra Aqua mode provides a waveform capture rate of up to 1,000,000 wfm/s, increasing the probability of capturing infrequent events.
- Displej a rozhranie: The 7-inch 1024x600 HD touchscreen supports 256-level grayscale real-time brightness, enhancing waveform visualization. The new Flex button provides an intuitive user experience.
- Integrated Analysis Functions: The oscilloscope integrates various analysis tools, including an arbitrary waveform/function generator, birdon trace analysis, histogram, and digital signal analysis.
- Pripojenie: Standard USB Device&Host, LAN, and HDMI ports facilitate data transfer, remote control, and external display connections.
- Vyhľadávanie a navigácia v tvare vlny: Utilize the built-in search and navigation functions to quickly identify anomalies within captured waveforms.
5. Údržba
5.1 Čistenie
To clean the instrument, disconnect it from the power source. Use a soft cloth dampened with a mild detergent solution. Do not use abrasive cleaners, solvents, or harsh chemicals, as these may damage the casing or display. Ensure no liquid enters the instrument.
5.2 Skladovanie
When not in use for extended periods, store the oscilloscope in a dry, dust-free environment, preferably in its original packaging or a protective case. Avoid extreme temperatures and humidity.
6. Riešenie problémov
Táto časť poskytuje riešenia bežných problémov. V prípade problémov, ktoré tu nie sú uvedené, kontaktujte zákaznícku podporu.
| Problém | Možná príčina | Riešenie |
|---|---|---|
| Prístroj sa nezapne. | Power cable not connected, power outlet faulty, power button not pressed. | Check power cable connection. Verify power outlet functionality. Press the power button firmly. |
| Nezobrazuje sa žiadny priebeh. | Probe not connected, signal source off, vertical scale too high/low, trigger settings incorrect. | Ensure probes are connected to the signal source and oscilloscope. Verify signal source is active. Adjust vertical scale (V/div) and horizontal scale (s/div). Check trigger level and mode. |
| Priebeh signálu je nestabilný alebo zašumený. | Poor probe connection, ground loop, external interference, incorrect probe compensation. | Ensure secure probe connections. Use proper grounding techniques. Minimize external electromagnetic interference. Perform probe compensation adjustment. |
| Dotykový displej nereaguje. | Dočasná chyba softvéru, znečistená obrazovka. | Restart the instrument. Clean the screen with a soft, dry cloth. If the issue persists, use physical controls or contact support. |
7. Špecifikácie
The following table outlines the key technical specifications for the RIGOL DHO914 Digital Oscilloscope.
Obrázok 7.1.1: RIGOL DHO914 Technical Data. This image presents a table detailing the oscilloscope's specifications: Bandwidth: 125 MHz, No. Channels: 4A+16D Logic Analyzer, Sample Rate: 1.25G Sa/s, Memory Depth: 50 Mpts, Waveform capture rate: 1,000,000 wfms/s, Vertical Resolution: 12 bit, Min. Vertical Sensitivity: 500uV/div, Min. Timebase: 2 ns/div, Decode Types: RS232/I2C/SPI/CAN/LIN, Built-in Signal Generator: Not supported.
| Parameter | Špecifikácia |
|---|---|
| Šírka pásma | 125 MHz |
| Počet kanálov | 4 Analog + 16 Digital (Logic Analyzer) |
| Sample Rate | 1.25 GSA/s |
| Hĺbka pamäte | 50 Mpt |
| Rýchlosť zachytávania priebehov | 1,000,000 wfms/s (Ultra Aqua mode) |
| Vertikálne rozlíšenie | 12-bitový |
| Min. Vertical Sensitivity | 500 µV/div |
| Min. Timebase | 2 ns/div |
| Decode Types | RS232, I2C, SPI, CAN, LIN |
| Vstavaný generátor signálu | Nie je podporované |
| Displej | 7-inch (1024x600) HD Touchscreen |
| Konektivita | USB Device&Host, LAN, HDMI |
| Rozmery (D x Š x V) | 26.53 x 7.74 x 16.17 cm (10.5 x 3.0 x 6.4 palca) |
| Hmotnosť | 1.78 kg (3.9 libier) |
| Zdroj napájania | Wired-electric |
8. Záruka a podpora
8.1 Informácie o záruke
The RIGOL DHO914 Digital Oscilloscope comes with a standard 3-ročná záruka from the date of purchase. This warranty covers defects in materials and workmanship under normal use. Please refer to the included Warranty Card for detailed terms and conditions.
8.2 Zákaznícka podpora
For technical assistance, troubleshooting beyond this manual, or warranty claims, please contact RIGOL customer support. You can find contact information on the official RIGOL website or through your local distributor. Ensure you have your product model number (DHO914) and serial number ready when contacting support.
9. Typické aplikácie
The RIGOL DHO914 Digital Oscilloscope is suitable for a wide range of applications due to its high performance and versatile features.
Obrázok 9.1.1: RIGOL DHO914 Application Scenarios. This image displays various environments where the oscilloscope can be utilized, such as embedded development, factory production lines, instrument maintenance, educational and research settings, and automotive manufacturing.
- Embedded Development: For debugging and testing embedded systems.
- Factory Production Line: Quality control and signal integrity checks in manufacturing.
- Údržba prístroja: Diagnostics and repair of electronic equipment.
- Education and Research: Ideal for laboratory experiments and academic studies.
- Automotive Manufacturing: Analyzing signals in automotive electronic systems.