Readjust your Volt/Div knob. Ensure your menu probe setting (1X/10X) matches the physical hardware switch toggle on your probe handle.
The values will display cleanly along the bottom or side of your waveform display grid. Using Manual Cursors
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Ensure the device is connected to a properly grounded power outlet to avoid electric shock.
Dynamically changes based on which physical menu button you press. 2. Vertical System (Channel Controls) hanmatek dos1102 manual
: Check the CH1/CH2 menu and ensure the software probe multiplier matches your physical probe switch setting (1X vs 10X). Factory Reset (Self-Calibration)
There is very little official information about firmware updates for the DOS1102. Community forums like EEVblog have threads where users discuss the lack of available firmware updates. If you believe your scope has a serious bug, your primary recourse is likely through the vendor from whom you purchased it. The general consensus is that the DOS1102 comes from the factory with its final stable firmware.
Ultimate Guide to the Hanmatek DOS1102 Digital Oscilloscope: Manual, Setup, and Essential Features
Rotating clockwise reduces the volts/div (magnifies the signal), counter-clockwise increases it. Readjust your Volt/Div knob
Install the software driver packages on your computer before connecting the device.
Displays the frequency, peak-to-peak voltage, and active channel settings. Vertical Controls (CH1 and CH2)
Set the Type to (horizontal lines) or Time (vertical lines).
If the square wave is not square (over/undershoot), adjust the variable capacitor on the probe. 3. Front Panel Controls Overview Using Manual Cursors If you are experiencing a
Set the physical switch on the probe handle to the position.
The screen updates only when the signal meets your exact trigger conditions. This is essential for capturing burst signals or sporadic waveforms.
The DOS1102 is designed for portability with a thin, lightweight body.
If the square wave looks distorted (rounded corners or "overshoot" spikes), use the adjustment tool (included with the probe) to turn the trimmer capacitor on the probe connector until the wave is perfectly flat and square. 3. Key Functions for Daily Use Automatic Measurements: