Quick Start Guide
1.3
Contents
Please check that your PicoScope PC Oscilloscope package contains:
•
PicoScope 4225 / 4425 oscilloscope
•
USB 3.0 cable
•
Automotive accessories catalog
Some kits will contain additional items.
System requirements
To ensure that PicoScope operates correctly, you must have a computer with at least
the minimum system requirements shown in the following table. The performance
of the PicoScope software will improve with a more powerful PC, and will bene t
from a multi-core processor.
Item
Minimum specifi cation
Windows XP (SP3), Vista, 7 or 8. 32-bit or 64-bit.
Operating system
Processor
Memory
Free disk space
Ports
USB 1.1 port
1.4
Installing the PicoScope software
1.
Insert the Pico software disc into your CD drive. It should start
automatically. If it does not, simply go to My Computer (or Computer for
Windows 8) and run the Pico CD.
2.
Select your preferred language.
3.
Follow the on-screen instructions to install the PicoScope software.
4.
Connect the oscilloscope to your PC using the USB cable supplied.
5.
Follow the instructions in the Windows New Hardware Found wizard,
which will run automatically. If the wizard asks to connect to Windows
Update, select No.
6.
The New Hardware Found wizard may run twice. If this happens, repeat
the previous step.
7.
The PicoScope software is now installed.
DO239-1
•
PicoScope software disk
•
Quick start guide
Recommended specifi cation
As required by Windows
USB 2.0 or 3.0 port
Copyright © 2014 Pico Technology Ltd. All rights reserved.
1.5
Features, connections, and indicators
The PicoScope 4225 and 4425 oscilloscopes contain our latest advances in design.
These advances give the scopes oating inputs, ConnectDetect, and a maximum
input range of ±200 V (reducing the need for attenuators).
Floating inputs
Unlike previous PicoScopes, the PicoScope 4225 and 4425 have inputs that do
not share a common measurement ground. Floating inputs are isolated from one
another and their measurement grounds can be connected freely with no risk of
current ow between them. It is important however that every input in use has both
a signal and a ground connection.
Overvoltage indication
If the BNC shell to chassis voltage exceeds the measurement limit, the Channel LED
will turn solid red, and the yellow warning icon
of the PicoScope screen next to the relevant channel's vertical axis. Parts of the
waveform will also be missing when the measurement limit is exceeded.
Similarly if an overvoltage of the normal measurement range is detected, the red
!
warning icon
will appear in the upper corner of the PicoScope screen, next to the
relevant channel's vertical axis.
ConnectDetect™
The ConnectDetect feature indicates whether a channel probe has a good physical
connection to the signal under test or not. With ConnectDetect active and coupling
set to DC, the Channel LED for an enabled channel will either be green to indicate
that the test probe is directly connected to a component, or red to indicate that it
is not. This will also be shown on the PicoScope screen. To enable ConnectDetect,
click the ConnectDetect button
PicoScope 4225 and 4425 Automotive Scopes
!
will appear in the upper corner
in the software.
3