PicoScope 3000 Series User Guide
7
Copyright 2005 Pico Technology Limited. All rights reserved.
PS3000044 1.4
Connector diagrams
3204
3205
3206
3224
3424
1
USB port.
2
LED. When lit, indicates the oscilloscope is sampling data.
3
Power socket. 12 V DC at 500 mA.
A
Input channel A.
B
Input channel B.
C
Input channel C.
D
Input channel D.
E
External trigger input / Signal generator output.
The BNC connector labelled '
E
' on the 3204/5/6 models has two functions. In normal use
it is the external trigger input with an adjustable threshold. Alternatively, on some
oscilloscopes, this connector can also be used to output sine, square and triangle
waveforms which can be swept back and forth at a user-defined frequency. The
integrated signal generator can be controlled via the PicoScope software or by API calls.
The signal generator can also be used to compensate x10 scope probes when set to
output a square wave.
Ground loops
If you experience excessive noise or voltage offsets when using the PicoScope 3204/5/6
variants, you may have a ground loop problem. See
for advice on
overcoming this.
Moving your PicoScope PC Oscilloscope to another USB port
When you install the PicoScope 3000 Series PC Oscilloscope by plugging it into a USB
port, Windows associates the Pico
software with that port. If you later move the
oscilloscope to a different USB port, Windows will display the "New Hardware Found
Wizard" again. When this occurs, simply follow the steps listed in the Quick Start Guide
after the instruction "Connect the PicoScope 3000 Series PC Oscilloscope to the PC..."
As all the software you need is already installed on your computer, there is no need to
insert the Pico Software CD again.
