Made in China
Universal Oscilloscope China Engineering Lab Training System Suppliers
High sensitivity up to 1mV/div; Waveforms parallax-free with the CRT's internal graticule scale; Alt Mag, Alt Trig, TV synchronization, Auto focus, Trigger Lock; Component test.
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CH1 and CH2 sensitivity |
5mV/div~5V/div, 1-2-5 step, 10 calibratedsteps |
5mV/div~10V/div, 10 calibratedsteps (1mV/div~1V/div at×5 MAG) |
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Accuracy |
×1: ±3%, ×5: ±5% (Vertical knob is set to CAL position) |
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Variable vertical sensitivity |
To less than 1/2.5 times indicated sensitivity value |
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Frequency bandwidth ×5 MAG |
DC:DC to 25MHz AC:10Hz to 25MHz |
DC:DC to 40MHz AC:10Hz to 40MHz |
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DC:DC to 7MHz AC:10Hz to 7MHz |
DC:DC to 7MHz AC:10Hz to 7MHz |
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20MHz bandwidth |
AC:10Hz~20MHz -3dB DC:DC-20MHz |
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Rising time |
Approx. 14ns |
Approx. 8.8ns |
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Input impedance |
1MΩ±2%, 25pF ±3pF |
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Max.input voltage |
400V(DC+ACpeak) |
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Input coupling system |
AC-GND-DC |
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CH1 Output Amplifier |
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Output voltage |
Min. 20mV/div |
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Output impedance |
Approx. 50Ω |
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Bandwidth |
50Hz to 5MHz (-3dB) |
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Time Axis |
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Sweep mode |
×1, ×5, ×1, ×5ALT |
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Sweep time |
0.1μs/div-0.2s/div, in 20 calibratedsteps (1-2-5 seq) |
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Sweep expansion |
20ns/div-40ms/div |
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Alt. MAG TRACE |
Max. 4 traces |
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Trace Sep. Var |
Min. 1.5div |
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Trigger |
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Trigger mode |
Normal, auto, TV-V, TV-H |
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Trigger source |
INT, CH2, Line, EXT |
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Polarity |
+, - |
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Coupling system |
AC coupling |
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Freq. |
INT |
EXT |
Freq. |
INT |
EXT |
Freq. |
INT |
EXT |
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Sensitivity |
NORM |
10Hz-25MHz |
1.5div |
300mV |
10Hz-40MHz |
2div |
800mV |
10Hz-60MHz |
2div |
200mV |
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AUTO |
20Hz-25MHz |
1.5div |
300mV |
20Hz-40MHz |
2div |
800mV |
20Hz-60MHz |
2div |
200mV |
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LOCK |
50Hz-20MHz |
2div |
300mV |
50Hz-20MHz |
2div |
800mV |
50Hz-30MHz |
2div |
300mV |
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TV sync. |
INT |
Min. 1div |
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EXT |
Min. 1Vp-p |
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3820 has ALT triggering, Amplitude≥3div, trigger frequency:50Hz-25MHz |
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X-Y operation |
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Operating mode |
CH1, X-axis and CH2, Y-axis; When in X-Y operation mode |
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Sensitivity |
As vertical axis |
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Input impedance |
1MΩ±2%, 25pF ±3pF |
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X-axis bandwidth |
DC~500kHz |
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Phase difference |
≤3° (DC~50kHz) |
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Z-Axis |
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Input impedance |
33kΩ |
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Max. input voltage |
30V(DC+AC peak) , AC freq≤1kHz |
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Bandwidth |
DC~2MHz |
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Input signal |
±5V |
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Cal |
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Freq |
1kHz±2% |
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Output level |
0.5V (±2%) |
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Duty |
≥48:52 |
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Power supply |
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Voltage |
AC 200V~240V |
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Frequency |
50Hz/60Hz |
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Power consumption |
35W |
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CRT |
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Type |
6 inch square internal scale |
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Acceleratevoltage |
-1.9kV |
12kV |
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Effective screen |
8div (vertical)×10div(horizontal) |
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As leading universal oscilloscope manufacturers, suppliers & exporters in China, Engineering Lab China combines factory-direct pricing, strict quality control and reliable worldwide shipping. Every Universal Oscilloscope is built in-house in Guangzhou City to deliver dependable performance for engineering training and teaching environments.
We manufacture every Universal Oscilloscope at our own facility in Guangzhou, China. No middlemen — you get factory pricing on Engineering Laboratory Trainer Kits, Training Charts and Educational Equipment.
Every Universal Oscilloscope passes a strict outward quality check before dispatch, so it stands up to daily use in Industrial Training Institutions, Engineering Colleges & Polytechnics.
From a single trainer kit to a full lab tender, our team manages packaging and prompt international delivery so your Universal Oscilloscope arrives on schedule, anywhere in the world.
EngineeringLabChina is a leading universal oscilloscope manufacturers, universal oscilloscope suppliers & exporters in China. Whether you need a single unit for a lab refresh or a complete tender for a polytechnic, we handle Engineering, Procurement, Installation and Commissioning under one roof.
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