Hanmatek Dos1102 Manual

Report: Hanmatek DOS1102 Digital Oscilloscope Manual

Date: April 18, 2026
Subject: Analysis of User Manual for Hanmatek DOS1102 (2-Channel, 100MHz)

6. Troubleshooting Common Issues

The manual often includes a troubleshooting section. Here are common scenarios:

• "The waveform is scrolling across the screen."
  • 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."
• "The signal looks like a flat line or is very noisy."
  • Cause: The probe attenuation setting on the screen (1x or 10x) does not match the physical switch on the probe.
  • Fix: Check the probe handle. If it is set to 10x, press the CH button on the scope and change the probe setting in the menu to 10x.
• "The screen is frozen."
  • Cause: The scope is in "Stop" mode.
  • Fix: Press the Run/Stop button to resume acquisition.

Key Specifications (from the official manual)

| Parameter | Value | |-----------|-------| | Bandwidth | 100 MHz | | Sample Rate | 1 GSa/s (real-time) | | Channels | 2 analog + external trigger | | Vertical Sensitivity | 2 mV/div – 10 V/div | | Time Base | 5 ns/div – 100 s/div | | Record Length | 7.6 kpts per channel (typical) | | Built-in AWG | Yes (20 MHz max sine wave) | | Display | 7-inch TFT LCD (800x480) | | Interface | USB-A (for saving screenshots), USB-B (PC connection) | hanmatek dos1102 manual

Q4: I lost my CD. How do I get the PC software?

Answer: Search for “Hanmatek DOS1102 PC software” or download “Hantek DSO2X1X PC software” as a fallback. The manual lists the correct software name—often a variant of ScopeExplore or EasyScopeX.

Problem 2: "The waveform is jumping or unstable."

Likely cause: Noise on the signal confusing the trigger. Manual reference: Trigger Coupling and Noise Rejection. Fix: In the Trigger Menu, change Coupling to HF Reject (high-frequency reject). This filters out sharp noise spikes. Alternatively, increase the Trigger Holdoff time—this tells the scope to ignore triggers for a short period after each trigger event. "The waveform is scrolling across the screen

B. Horizontal Controls

These knobs control the time domain of the waveform.

• POSITION: Moves the waveform horizontally left or right. This is used to view different parts of the signal cycle.
• SCALE (TIME/DIV): Adjusts the horizontal time base (e.g., changing from 1ms per division to 1µs per division). This changes the zoom level regarding time.

Conclusion

The Hanmatek DOS1102 offers a powerful introduction to electronics analysis. By mastering the manual—from basic probe compensation to utilizing deep memory capture—users can unlock the full potential of the device, moving beyond simple voltage checks to complex signal analysis and debugging. Keep the manual handy as a reference for the specific menu trees, as the interface relies heavily on the context-sensitive softkeys. Cause: The trigger level is set outside the

Q: How do I restore factory settings?

A: Press Save/Recall → Recall Default (or Utility → System → Factory Reset).

Tips for Using the DOS1102 Without Constant Manual Reference

• The “Auto” button is your friend – It quickly adjusts vertical/horizontal settings for most periodic signals.
• Long-press the “Measure” key – This often brings up a shortcut to clear all measurements.
• Probe attenuation – Always set the probe switch to 10x and change channel attenuation in the CH menu to 10x (otherwise voltage readings will be off by 10×).
• Saving screenshots – Insert a USB drive, press Utility → Save → Bitmap → Save Now.