1. Introduction
The Hanmatek DOS1102 is a high-performance digital storage oscilloscope designed for various electronic measurement tasks. Featuring a 110MHz bandwidth, 1GSa/s real-time sampling rate, and a 7-inch TFT LCD, it provides reliable and accurate waveform analysis. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your DOS1102 oscilloscope.
2. Setup
2.1. Unpacking and Inspection
Carefully unpack the oscilloscope and check for any signs of damage. Verify that all standard accessories are included:
- Hanmatek DOS1102 Digital Oscilloscope
- Two Oscilloscope Probes
- Power Cords (specific to region)
- Adjustment Tool (screwdriver)
- Quick Guide / User Manual
- Software CD
2.2. Physical Overview
Familiarize yourself with the front panel controls and connectors:
- Display: 7-inch TFT (True Color) LCD screen with 65535 colors and 800 x 480 pixels resolution.
- Input Channels (CH1, CH2): BNC connectors for probe connection.
- Control Knobs: Dedicated knobs for Multipurpose, Position, Horizontal, Vertical, and Trigger adjustments.
- Function Buttons: Buttons for Utility, Measure, Acquire, Cursor, Display, Storage, etc.
- USB Host Interface: Located on the front panel for data storage.
2.3. Connecting Power
Connect the provided power cord to the AC input on the rear panel of the oscilloscope and then to a suitable power outlet.
2.4. Connecting Probes
Connect the oscilloscope probes to the CH1 and CH2 BNC input connectors on the front panel. Ensure a secure connection. The probes are used to connect the oscilloscope to the circuit under test.
3. Operating Instructions
3.1. Power On/Off
Press the power button on the front panel to turn the oscilloscope on or off.
3.2. Basic Waveform Display
After powering on, connect a signal to CH1 or CH2. Use the Vertical (Position and Scale) and Horizontal (Position and Scale) knobs to adjust the waveform's position and size on the screen. The oscilloscope features a 110MHz bandwidth and 1GSa/s real-time sampling rate for accurate signal capture.
3.3. Triggering
The Trigger section allows you to stabilize repetitive waveforms. Adjust the Trigger Level knob to set the voltage threshold at which the oscilloscope starts acquiring data. Use the Trigger Menu button to access advanced trigger settings.
3.4. Measurements
Press the 'Measure' button to access automatic measurement functions. The oscilloscope can display various parameters such as frequency, peak-to-peak voltage, RMS voltage, and more.
3.5. Data Storage
The USB Host interface on the front panel allows you to save waveform data, screenshots, and settings to a USB flash drive. The storage depth for acquired waveforms is not less than 10K sampling points.
4. Maintenance
4.1. Cleaning
To clean the oscilloscope, use a soft, dry cloth. For stubborn dirt, a cloth lightly dampened with water or a mild cleaning solution can be used. Avoid using abrasive cleaners or solvents that could damage the casing or screen. Ensure the device is powered off and unplugged before cleaning.
4.2. Storage
Store the oscilloscope in a clean, dry environment away from direct sunlight, extreme temperatures, and high humidity. When not in use for extended periods, disconnect all probes and power cables.
5. Troubleshooting
- No Power: Ensure the power cord is securely connected to both the oscilloscope and the power outlet. Check the power button.
- No Waveform Display: Verify that the input signal is connected correctly to CH1 or CH2. Adjust the Vertical Scale (V/div) and Horizontal Scale (s/div) knobs to bring the waveform into view. Check the trigger settings.
- Unstable Waveform: Adjust the Trigger Level and Trigger Mode settings to stabilize the waveform. Ensure the trigger source is correctly selected.
- Incorrect Measurements: Calibrate probes if necessary. Ensure the input coupling (AC/DC) is appropriate for the signal being measured.
- Device Malfunction: If the oscilloscope does not function correctly upon receipt, contact customer support for immediate assistance. The manufacturer offers replacement for new items at once for such issues.
6. Specifications
| Feature | Specification |
|---|---|
| Type | Oscilloscope |
| Model Number | DOS1102 |
| Condition | 100% Brand New |
| Bandwidth | 110MHz |
| Real-time Sampling Rate | 1GSa/s |
| Channels | 2 Channels |
| Max Waveform Capture Rate | 50,000 wfm/s |
| Time Base Range (s/div) | 2ns/div - 1000s/div, step by 1-2-5 |
| Display Resolution | 800*480 Pixels |
| Display Type | 7-inch TFT (True Color) LCD, 65535 colors |
| Size (L*W*H) | 301mm * 152mm * 70mm |
| Power Consumption | Not higher than 18W |
| USB Interface | USB Device & Host interface (for data storage) |
7. Warranty and Support
7.1. Warranty Information
The Hanmatek DOS1102 oscilloscope typically comes with a warranty period. For initial defects, new items may be replaced for free within 1-3 months. For other issues, free repair services are generally available for 1-2 years, depending on the specific product and terms.
7.2. Technical Support
For technical assistance, troubleshooting beyond this manual, or warranty claims, please contact the seller or manufacturer directly. Provide your product model (DOS1102) and a detailed description of the issue.
8. User Tips
- Probe Calibration: Regularly calibrate your oscilloscope probes for accurate measurements. Most oscilloscopes have a dedicated output for probe compensation.
- USB Data Transfer: Utilize the USB host interface to save important waveform data or screenshots for later analysis or documentation.
- Application Versatility: This oscilloscope is suitable for a wide range of applications, including PCB design, testing, and general electronic circuit analysis.
