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PicoScope USB Oscilloscopes
To prevent electric shock, do not attempt to measure voltages outside of the specified full-
scale measurement range.
Full-scale
Models measurement
range
PicoScope 3000D Series ±20 V
PicoScope 4224 and 4424 ±100 V
PicoScope 4224 IEPE ±20 V
PicoScope 4262
±20 V
PicoScope 4824 ±50 V
PicoScope 5000D Series ±20 V
PicoScope 6000C/D Series
1 MΩ input ±20 V
50 Ω input ±5 V
PicoScope 6407 100 mV
Signals exceeding the voltage limits in the table below are defined as "hazardous live" by
EN 61010. All products from Pico Technology are suitable for connection to voltages that are
equal to or less than the EN 61010 limits in the table below.
Signal voltage limits of EN 61010-1:2010
±70 V DC
The above EN 61010 limits apply to any accessory that is not marked with a voltage rating on
either the connector, cable or body or if a protective finger guard is removed.
2
WARNING
Overvoltage protection (DC + AC peak)
Input Digital input External
channels channels (MSO) trigger
±100 V ±50 V ±100 V
±200 V – –
±100 V – –
±50 V
–
±50 V
±100 V – –
±100 V ±50 V ±100 V
±100 V – ±5 V
5.5 V RMS – –
±2 V – ±5 V
WARNING
33 V AC RMS ±46.7 V pk max.
Copyright © 2006–2019 Pico Technology Ltd. All rights reserved.
A signal voltage exceeding the current full-scale measurement
range is detected and 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.
Signal
Under these conditions, displayed waveforms and measurements
generator
may be incorrect and the condition may be hazardous. Reduce the
input sensitivity to achieve a within-range measurement and if the
±20 V
condition persists, to prevent injury or death, disable or otherwise
–
safely disconnect from the source of overvoltage.
–
±10 V
To prevent injury or death, do not connect the oscilloscope directly to the mains (line power).
±10 V
To measure mains, use only a differential isolating probe that is specifically CAT rated for
±20 V
mains or high-energy use, such as the TA041 listed on the Pico website. Appropriate safety
training is essential in these cases and must be separately gained.
5 V
–
±5 V
Exceeding the overvoltage protection range on any connector can cause permanent damage
to the oscilloscope and other connected equipment.
Ensure that no voltage is present when selecting IEPE Interface Mode, and no voltage is
applied when in use. Failure to comply with this warning could result in damage to the
PicoScope 4224 IEPE PC Oscilloscope.
1.2.3 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.
Applying a voltage to the ground input is likely to cause permanent damage to the
oscilloscope, the attached computer, and other equipment.
To prevent measurement errors caused by poor grounding, always use the high-quality USB
cable supplied with the oscilloscope.
Quick Start Guide
WARNING
WARNING
CAUTION
WARNING
CAUTION
DO115-20