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• Set the parameter to a default value.
• Clear the parameter input field.
4.7 Using the Security Lock
If necessary, you can lock the instrument to a fixed location by using the security lock
(please purchase it by yourself), as shown in the figure below.
The method is as follows: align the lock with the lock hole and plug it into the lock
hole vertically, turn the key clockwise to lock the oscilloscope, and then pull the key
out.
Figure 4.22 To Use the Security Lock
NOTE
Please do not insert other objects into the security lock hole to avoid damaging the
instrument.
4.8 Accessing the Built-in Help System
The built-in help system provides instructions for all the front-panel keys and their
corresponding menu keys. Click or tap > Help to access the "Help" menu.
Quick Start
DHO4000 User Guide
38
Copyright ©RIGOL TECHNOLOGIES CO., LTD. All rights reserved.
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