3Multimeter Features  
Freezing the Display (Trig Hold-Log and Auto Hold-Log)
72 U1231A/U1232A/U1233A User’s Guide
Freezing the Display (Trig Hold-Log and Auto Hold-Log)
Trig Hold-Log operation
To freeze the display for any function, press the   key.
Figure 3-5 Trig Hold-Log display
Press   again to automatically update the display to 
reflect data that was acquired during the hold.
Press and hold   for more than 1 second to exit this 
mode.
Auto Hold-Log operation
Pressing the   for more that 1 second activates the Auto 
Hold- Log function.
Trig Hold-Log and Auto Hold-Log readings are recorded automatically for 
future review or analysis by default. See “Recalling Previously Recorded 
Readings (Recall)” on page 74 to learn more.
The   annunciator will flash while attempting to acquire a stable 
reading.