Chapter 1 Quick Start    RIGOL 
DS2000E User’s Guide    1-23 
and bandwidth limit (e.g.  ). You can use VIRTICAL    SCALE to modify this 
parameter. 
 
 
To Use the Security Lock 
 
If needed, you can use the security lock (please buy it yourself) to lock the 
oscilloscope to a fixed location. 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 1-12 To Use the Security Lock 
 
Note: Please do not insert other articles into the security lock hole to avoid 
damaging the instrument. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Security Lock Hole