Grounding; External Connections - PICO PicoScope 9000 Series Quick Start Manual

2.3 Grounding

WARNING
The oscilloscope's ground connection through the USB cable is for measurement
purposes only. The oscilloscope does not have a protective safety ground.
WARNING
Never connect the ground input (chassis) to any electrical power source. To prevent
personal injury or death, use a voltmeter to check that there is no significant AC or DC
voltage between the oscilloscope ground and the point to which you intend to connect
it.
CAUTION
Applying a voltage to the ground input is likely to cause permanent damage to the
oscilloscope, the attached computer, and other equipment.
CAUTION
To prevent measurement errors caused by poor grounding, always use the high-quality
USB cable supplied with the oscilloscope.

2.4 External connections

WARNING
To prevent injury or death, only use the power cord and adaptor supplied with the
product. These are approved for the voltage and plug configuration in your country.
PicoScope
USB connection
model
All 9300
USB 2.0. Compatible
models
WARNING
To prevent injury, ensure that light or laser light sources are extinguished during
connection or disconnection to optical fiber inputs. Never direct an optical source
towards a naked eye.
CAUTION
Take care to avoid mechanical stress or tight bend radii for all connected leads,
including all coaxial leads and optical fiber and connectors. Mishandling will cause
deformation of sidewalls, and will degrade performance and measurement accuracy.
DO134-14 Copyright © 2008–2017 Pico Technology Ltd. All rights reserved.
with USB 3.0.
PicoScope 9000 Series Quick Start Guide
EXT power supply
Voltage Current
(V) (A pk)
12 V 1.7 A pk
Total power
(W)
21 W
3