Pico Macom Pico Technology PicoScope 4000 Automotive PC Oscilloscopes - Manual (Page 7)

Introduction 3
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1.4 Safety symbols
Symbol 1: Warning Triangle
This symbol indicates that a safety hazard exists on the indicated connections if you
do not take correct precautions. Ensure that you read in detail all safety
documentation associated with the product before using it.
Symbol 2: Equipotential
This symbol indicates that the outer shells of the indicated BNC connectors are all at
the same potential (i.e. are shorted together). You must therefore take necessary
precautions to avoid applying a potential across the return connections of the
indicated BNC terminals as this may result in a large current flow, causing damage to
the product and connected equipment.
1.5 Safety warning
We strongly recommend that you read the general safety information below before
using your oscilloscope for the first time. Safety protection built in to equipment may
cease to function if the equipment is used incorrectly. This could cause damage to
your computer, or lead to injury to yourself and others.
Maximum input range
PicoScope 4000 Series Automotive Oscilloscopes are designed to measure voltages
in the range ±100V. Any voltages in excess of ±200V may cause physical damage.
Mains voltages
Pico Technology products are not designed for direct connection to mains (line power)
sources. To measure mains, use a differential isolating probe specifically designed for
mains use.
Safety grounding
PicoScope 4000 Series Automotive Oscilloscopes connect direct to the ground of a
computer through the interconnecting cable provided. This method minimises
interference.
As with most oscilloscopes, avoid connecting the ground input to any source other
than ground. If in doubt, use a meter to check that there is no significant AC or DC
voltage. Failure to check may cause damage to your computer, or lead to injury to
yourself and others.
You should assume that the product does not have a protective safety earth.
Repairs
The oscilloscope contains no serviceable parts. Repair or calibration of the
oscilloscope requires specialised test equipment and must only be performed by Pico
Technology.
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