User manual

2 Copyright © 2006–2017 Pico Technology Ltd. All rights reserved. DO231-8
Quick Start GuidePicoScope 2000 Series Oscilloscopes and MSOs
1.2.2 Maximum input ranges
Observe all terminal ratings and warnings marked on the product.
WARNING
To prevent electric shock, do not attempt to measure voltages outside of the specied
full scale measurement range below. Full scale measurement ranges are the maximum
voltages that can be accurately measured by the instrument. Overvoltage protection
ranges are the maximum voltages that will not damage the instrument.
Full scale
measurement
range
Overvoltage protection (DC + AC peak)
Input channels
Digital input channels
(MSO)
Signal generator
output
±20 V ±100 V ±50 V ±20 V
WARNING
Signals exceeding the voltage limits in the table below are dened as “hazardous live” by
EN 61010. To prevent electric shock, take all necessary safety precautions when working
on equipment where hazardous live voltages may be present.
Signal voltage limits of EN 61010
±70 V DC 33 V AC RMS ±46.7 V pk max.
WARNING
PicoScope 2000 Series oscilloscopes are not designed to measure hazardous live signals
as dened by EN 61010. To prevent electric shock, do not attempt to measure voltages
outside of the limits shown in the table above or the specied full scale measurement
range, whichever is lower.
WARNING
To prevent injury or death, the oscilloscope must not be directly connected to the mains
(line power). To measure mains voltages, use a differential isolating probe specically
rated for mains use, such as the TA041 listed on the Pico website.
CAUTION
Exceeding the overvoltage protection range on any connector can cause permanent
damage to the oscilloscope and other connected equipment.
1.2.3 Grounding
WARNING
The scopes 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 signicant AC or DC
voltage between the oscilloscope ground and the point to which you intend to connect it.