Features and Functions   2
U1241B/U1242B User’s and Service Guide 19
Data Hold (Trigger Hold)
The data hold function allows users to freeze the displayed digital value.
1 Press   to freeze the displayed value and to enter manual trigger 
mode. Notice the   annunciator is displayed.
2 Press   to trigger the freeze of the next value being measured. The
  annunciator will flash before the new value is updated onto the 
display.
3 Press   for more than one second to exit this mode.
Refresh Hold
Users are required to activate the Refresh Hold in the setup mode.
1 Press   to enter Refresh Hold mode. The present value will 
be held, and the   annunciator is displayed. 
2 The multimeter is ready to hold new measuring value once the variation 
of measuring value exceeds the setting of variation count, and the
 annunciator is flashed. 
3 The hold value will be updated until the measuring value is stable. The
 annunciator will stop flashing and stays lit, an audible tone will 
sound to remind user.
4 Press   again to disable this function.
• For voltage, current and capacitance measurements, the holding value will not be 
updated if the reading is below 50 counts. 
• For resistance and diode measurements, the holding value will not be updated if the 
reading is in “OL” (open state). 
• The holding value may not be updated if the reading does not reach stable state for all 
measurements.