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USB Device & Host interface for PC connection and U-disk storage. www.hanmatek.cn Essential Operations www.hanmatek.cn
Cause: The trigger level is set outside the signal range, or the trigger mode is set incorrectly.
Fix: Adjust the Trigger Level knob or press "Auto Set."
: While the manual covers the device, some users found connecting it to a PC for LabVIEW or other host software required additional external research as the instructions were not fully comprehensive for all software versions. Digital Access You can find digital versions and video guides at Manuals.plus or through official Hanmatek support channels specific section
Channels: 2 analog channels (CH1, CH2).
Bandwidth: 100 MHz (-3dB).
Sample Rate: 1 GSa/s (real-time).
Memory Depth: 40K points.
Vertical Sensitivity (Volts/Div): 2mV/div to 5V/div.
Time Base (Time/Div): 2ns/div to 50s/div.
Display: 7-inch Color TFT LCD.
Input Impedance: 1MΩ || ~20pF.
Connectivity: USB Device (for PC connectivity), USB Host (for flash drive storage), Pass/Fail output.
Practical tips distilled from the manual
Always start with probe at 10x and set the scope channel to 10x to keep readings accurate and reduce loading on circuits.
Use GND coupling when adjusting probe compensation — this isolates the probe reference.
For noisy signals, use averaging acquisition or increase record length before blaming the circuit.
If the trace is unstable, switch to edge trigger with a sensible threshold rather than relying on auto mode.
Save screenshots and CSV waveform exports via USB regularly — it’s much easier than trying to recreate intermittent events.
Check the manual for recommended calibration intervals and follow them if you need reliable measurements.
Storage Depth: Minimum 10K sampling points per acquired waveform.
Can store at least 16 groups of waveforms and supports external U-disk storage (formatted to FAT32). Connectivity:
button to access a menu of 30+ automatic measurements, including Frequency, Peak-to-Peak Voltage ( cap V sub p p end-sub ), RMS, and Duty Cycle. Cursor Measurements: For manual precision, press
You can find the comprehensive user manual for the DOS1102 on Manuals.plus or a similar version for the nearly identical Owon SDS1102. The manual covers: Quick Start: Front panel knobs and basic structure.
