TiePie Handyscope HS4 User Manual page 2

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ATTENTION!

Measuring directly on the line voltage can be very dangerous.

The outside of the BNC connectors at the Handyscope HS4 are connected

with the ground of the computer. Use a good isolation transformer or a dif-

ferential probe when measuring at the line voltage or at grounded power

supplies! A short-circuit current will ﬂow if the ground of the Handyscope HS4

is connected to a positive voltage. This short-circuit current can damage both

the Handyscope HS4 and the computer.

Revision 2.27, February 2020

Despite the care taken for the compilation of this user man-

ual, TiePie engineering can not be held responsible for any

damage resulting from errors that may appear in this man-

ual.

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