User manual

PicoScope 3000 A and B Series PC Oscilloscopes and MSOs User's Guide 13

PicoScope 3000 Series 4-channel oscilloscopes

Front

Rear

A. Input channel A

B. Input channel B

C. Input channel C

D. Input channel D

E. External trigger input

F. Signal generator output

1. Probe compensation output

2. LED: red when scope is connected, but not operating. Flashes green when the

oscilloscope is sampling data.

3. DC power socket: for use with the AC adapter supplied. See "Power Options" leaflet

for details.

4. USB 2.0 port: connects to your PC using the Hi-Speed USB cable supplied. See

Installation for powering options.

5. Earth terminal: helps to reduce interference when using a laptop. When using a

laptop computer, the earth terminal can be connected to an external ground point

(for example, on the system you are testing) to provide a ground reference for the

scope. This can help to avoid external noise interfering with your measurements.