External Connections - pico Technology PicoScope 2000 Serie Guia Del Usuario

PicoScope 2000 Series Oscilloscopes and MSOs
To prevent electric shock, do not exceed the voltage rating marked on any accessory. If an
accessory is not marked with a voltage rating on either the connector, cable or body, or if a
protective finger guard is removed, then do not exceed the EN 61010 "hazardous live" limits
above. When connecting one or multiple accessories and an instrument channel together, the
lowest voltage rating in the chain applies to that channel.
To prevent injury or death, do not directly connect the oscilloscope to the mains (line power). To
measure mains voltages, use only a differential isolating probe that is specifically CAT rated for
mains or high-energy use, such as the TA041 listed on the Pico website. Such measurements
must only be made by competent persons and appropriate safety training may be required.
If PicoScope detects a signal voltage exceeding the selected full
scale measurement range, it is indicated on the measurement
display. A red warning icon will appear in the upper left corner and
next to the relevant channel's vertical axis.
In these conditions, displayed waveforms and measurements may be
incorrect and the condition may be hazardous. Select a larger voltage
range to achieve a within-range measurement and if the condition
persists, to prevent injury or death, disable or otherwise safely
disconnect from the source of overvoltage.
To avoid causing permanent damage to the oscilloscope and other connected equipment, do not
exceed the voltage rating of any cable, connector or accessory.
2.3 Grounding
The oscilloscope's ground connection through the USB cable is for measurement purposes only.
The oscilloscope does not have a protective safety ground. 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.
To avoid causing permanent damage to the oscilloscope, the attached computer and other
equipment, never apply a voltage to the ground input. To prevent measurement errors caused by
poor grounding, always use the high‑quality USB cable supplied with the oscilloscope.
2.4

External connections

Note: the oscilloscope is powered through the USB connector. No additional power supply unit is
required.
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WARNING
CAUTION
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User's Guide
DO231-11