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ADS-6122-VGA-DMM Digital Storage Oscilloscope

Digital storage oscilloscope. Dual channels + external trigger; Bandwidth: 100MHz; Max. Sample rate: 1GSa/s; Max. Memory Depth: 40Mpts; Waveform math: +, -, ×, /; 28 types Automatic measurement; 8” 800x600 64K color TFT LCD display; USB device, USB host, LAN, Pass/Fail, VGA; Built-in DMM (ADS-6000DMM option installed); Power Supply 100-240V; Dimensions (WxHxD): 13.4x7x3.5in/340x177x90mm; Weight: 5.7lb/2.6kg.

ADS-6122-VGA-DMM Digital Storage Oscilloscope offers 2 channels with 100MHz bandwidth, 1GSa/s sample rate, 8″ color TFT-LCD display with 800x600 resolution, large amounts of memory (40Mpts), USB flash storage support, LAN interface. ADS-6122-VGA-DMM Digital Storage Oscilloscope is very slim and lightweight.

ADS-6122-VGA-DMM comes with VGA output (with option ADS-6000VGA installed) that is very helpful to a teacher who wants to demonstrate oscilloscope’s functions on the large screen. ADS-6122-VGA-DMM digital storage oscilloscope could be connected to a large screen TV, a projector or any other screen and used for training and demonstrations. Perfect oscilloscope for education!

ADS-6122-VGA-DMM digital storage oscilloscope offers buil-in digital multimeter (with option ADS-6000DMM installed).


Bandwidth 100MHz
Sample Rate 1GS/s
Vertical Resolution (A/D) 8 bits
Record length 40M
Waveform Refresh Rate 75,000 wfms/s
Horizontal Scale (s/div) 2ns/div - 1000s/div, step by 1 - 2 - 5
Rise Time (at input, typical) ≤3.5ns
Channel 2 + 1 (external)
Display 8" color LCD, 800 x 600 pixels
Input Impedance 1MΩ ± 2%, in parallel with 15pF ± 5pF; 50Ω ± 2%
Channel Isolation 50Hz : 100 : 1, 10MHz : 40 : 1
Max Input Voltage 1MΩ ≤ 300Vrms; 50Ω ≤ 5Vrms
DC Gain Accuracy ±3%
DC Accuracy average≥16 : ±(3% reading + 0.05 div) for ΔV
Probe Attenuation Factor 0.001X - 1000X, step by 1 - 2 - 5
LF Respond (AC, -3dB) ≥5Hz (at input, AC coupling, -3dB)
Sample Rate / Relay Time Accuracy ±1ppm
Interpolation sin(x) / x
Interval (ΔT) Accuracy (full bandwidth) Single: ±(1 interval time + 1ppm x reading + 0.6ns);
Average > 16: ±(1 interval time + 1ppm x reading + 0.4ns)
Input Coupling DC, AC, and GND
Vertical Sensitivity 1mV/div - 10V/div (at input)
Trigger Type Edge, Video, Pulse, Slope, Runt, Windows, Timeout, Nth Edge, Logic
Trigger Mode Auto, Normal, and Single
Trigger Level ±2000div (1mv/div), ±1000div (2mv/div), ±400div (5mv/div), ±200div (10mv/div), ±100div (20mv/div), ±40div (50mv/div), ±200div (100mv/div), ±100div (200mv/div), ±40div (500mv/div), ±20div (1v/div), ±100div (2v/div), ±40div (5v/div), ±20div (10v/div)
Line / Field Frequency (video) NTSC, PAL and SECAM standard
Cursor Measurement ΔV, and ΔT between cursors, ΔV and ΔT between cursors, auto-cursor
Automatic Measurement Vpp, Vavg, Vrms, Freq, Period, Week RMS, Cursor RMS, Vmax, Vmin, Vtop, Vbase, Vamp, Overshoot, Phase, Preshoot, Rise Time, Fall Time, +Width, -Width, +Duty, -Duty, Duty Cycle, Delay A→B ↑, Delay A→B↓, +Pulse Count, -Pulse Count, Rise Edge Count, Fall Edge Count
Waveform Math +, -, ×, /, FFT
Waveform Storage 100 waveforms
Bandwidth full bandwidth
Phase Difference ±3 degrees
Communication Interface USB host, USB device, USB port for PictBridge, Trig Out (P/F), LAN, VGA
Frequency Counter available
Power Supply 100V - 240V AC, 50/60Hz, CAT II
Power Consumption <15W
Fuse 2A, T class, 250V
Battery (optional) 3.7V, 13200mA
Dimension (W x H x D) 13.4x7x3.5 in / 340 x 177 x 90 mm
Weight 5.7 lb / 2.60 kg

Multimeter Specifications

Full Scale Reading 3¾ digits (max 4000 count) Diode 0V -1.5V
Input Impedance 10MΩ Continuity Test <50 (±30) beeping
Capacitance 51.2nF - 100uF: ±(3% ± 3 digits)
Voltage VDC: 400mV, 4V, 400V: ±(1 ± 1 digit); max input: DC 1000V
VAC: 4V, 40V, 400V: ±(1 ± 3 digits); frequency: 40Hz - 400Hz; max input: AC 750V (virtual value)
Current DC: 40mA, 400mA: ±(1.5% ± 1 digit); 10A: ±(3% ± 3 digits)
AC: 40mA: ±(1.5% ± 3 digits), 400mA: ±(2% ± 1 digit), 10A: ±(3% ± 3 digits)
Impedance 400Ω: ±(1% ± 3 digits), 4KΩ - 40MΩ: ±(1% ± 1 digit)



  • Probes x2
  • Test leads
  • USB cable
  • Power cord

User's Manual is not included.

You can see it on your oscilloscope's screen by pressing HELP

Frequently Asked Questions

  • After the oscilloscope is powered on the display remains dark, what should I do?
  • The signal is displayed as ladder like waveform
  • There is wave form displayed, but it is not stable
  • When changing the horizontal sweep on the digital oscilloscope at different horizontal points observed inexplicable change in the form of the same signal, why is this happening?

  • After the oscilloscope is powered on the display remains dark, what should I do?

    Please implement the following fault treatment procedure.

    • Check whether the power cable is connected properly.
    • Ensure the power switch is turned on.
    • Restart the instrument after completing the checks above.
    • If the oscilloscope still can not work normally, please call for service.


    The signal is displayed as ladder like waveform
    1. The time base setting maybe is too slow. Turn the horizontal SCALE knob to increase horizontal resolution.
    2. Maybe the display Type is set to "Vectors". Set it to "Dots" mode.


    There is wave form displayed, but it is not stable
    • Check whether the Source item in the TRIG MODE menu is in conformity with the signal channel used in the practical application.
    • Check on the trigger Type item: The common signal chooses the Edge trigger mode for Type and the video signal the Video. Only if a proper trigger mode is applied, the wave form can be displayed steadily.
    • Try to change the trigger coupling into the high frequency suppress and the low frequency suppress to smooth the high frequency or low frequency noise triggered by the interference.


    When changing the horizontal sweep on the digital oscilloscope at different horizontal points observed inexplicable change in the form of the same signal, why is this happening?

    In fact, this is not a problem.

    Just keep in mind that you're using a digital oscilloscope, which digitizes the signal with different sampling rates depending on the selected horizontal sweep, and then connects the digitized points with strait line while restoring the real shape of the signal.

    Your first screen shows that you are measuring voltage 50 Hz with the 10 ms / div sweep and a sampling frequency of 20 kHz Ks/s

    One signal period (20 ms), digitized in this mode, 20E-03 (sec) * 20E03 (1/sec) = 400 points. This is enough to properly restore and interpolate a sine wave of 50 Hz (i.e. in a period of 20 ms).

    Normal display, with a sweep 10 ms / div:

    Distortion of the same signal at 10 s / div sweep

    Your second screen is set to sweep 10 sec / div, and sample rate on a sweep turned to 20 samples per second (20 Sa / s). I.e. one signal period 20 ms had: 20E-03 (sec) * 20 (1/sec) = 0.4 points. That means that to restore (to interpolate the points) a sine wave with less than one point in time is impossible, so you get this mess (known as "aliasing" or a false frequency) formed by the beats of the measured frequency and sampling frequency.

    In order to correctly install a data collection in a digital oscilloscope one should follow a simple rule - the sampling rate must be at least 5-10 times higher than the frequency signal, in that case you will not have the issues that we just discussed.

    This applies to all digital oscilloscopes and in no way connected to any particular make or model of oscilloscope or its probes.


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