Multimeter Features 3 
Freezing the Display (Trig Hold-Log and Auto Hold-Log)
U1231A/U1232A/U1233A User’s Guide 73
Figure 3-6 Auto Hold-Log display
Press and hold   for more than 1 second to exit this 
mode.
Changing the default Auto Hold-Log variation count
1 Press and hold   while powering on the multimeter to 
enter the Setup menu.
2 Ensure that the   annunciator is shown on the 
display.
3 Press   or   to edit the variation count value shown 
on the display.
4 Press   to save the changes. Press and hold   until 
the multimeter restarts.
• The Auto Hold-Log operation monitors the input signal and updates the 
display and, if enabled, emits a beep whenever a new stable 
measurement is detected. The multimeter is ready to update the 
display once the variation of the reading exceed the setting of the 
variation count.
• The   annunciator will flash while attempting to acquire a stable 
reading.
If the reading value is unable to reach a stable state (when exceeding the 
preset variation), the reading value will not be updated.