Chapter 1 Quick Start    RIGOL 
MSO7000/DS7000 User Guide  1-31 
Method 4: 
For the parameters without the above signs, press the desired menu softkey to 
switch between the parameter items. This method is applicable to the parameters 
with only two available options. 
 
 
 
To Use 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 Figure 1-21. 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 1-21 To Use the Security Lock 
 
Note: Please do not insert other objects into the security lock hole to avoid 
damaging the instrument. 
 
Tip 
The above method is commonly used for the parameter settings of the 
oscilloscope. For other methods of parameter settings, refer to details in relevant 
chapters.