Safety Warnings - pico Technology PicoScope 3000 Guide De Démarrage

Pico Technology Oscilloscope Diagnostics Kit Quick Start Guide
4

Safety Warnings

We strongly recommend that you read the general safety information below and also the
product-specific safety warning in the user guide before using your product for the first
time. If you do not use the equipment in the manner specified, then you may impair the
protection provided. This could result in damage to your computer or injury to yourself or
others.
The PicoScope 3000 Series Automotive user guide is installed on your computer when
you install the supplied software.
Maximum input range
The maximum input range of the PicoScope 3000 Series Automotive PC Oscilloscopes is
±50 V, and overload protection is ±100 V. Always operate the product within the
maximum input range. Operation outside the range of the overload protection is likely to
cause permanent damage to the unit.
Measuring inductive signals
When using the PicoScope 3000 Series Automotive PC Oscilloscopes to measure signals
from a fuel injector, primary ignition waveforms or any other inductive signal, you must
fit the PP198 attenuator.
The PP198 provides increased input protection against overloads when working with
primary ignition and injector waveforms. Under no circumstances attempt to use this
attenuator to measure any other waveforms. Use the PP178 Secondary Ignition Pickup
lead to measure secondary ignition (HT) waveforms.
Using the secondary ignition pickup PP178
When attaching or removing secondary ignition pickups from damaged HT leads there is
a possibility of getting an electric shock. To eliminate this danger, attach and remove the
secondary ignition pickup with the ignition turned off.
Mains voltages
No Pico products are designed for use with mains voltages. To measure mains we
recommend the use of a differential isolating probe specifically designed for such
measurements.
Safety grounding
The ground of every product is connected directly to the ground of your computer
through the provided USB cable. This is done in order to minimise interference. Always
use the provided cable to attach the product to your computer.
As with most oscilloscopes, you should take care to avoid connecting the ground input of
the product to anything which may be at some voltage 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 the product or computer and could cause injury to yourself or others.
You should assume that the product does not have a protective safety earth.
Misconfiguration or use on voltages outside the maximum input range can be hazardous.
Loose items
Make sure that any body parts, items of clothing, test equipment and other objects are
kept away from any moving parts such as pulleys and fans.
DO110-4 7