Using the Digital Multimeter Functions 4 
Agilent U1602B/U1604B User’s and Service Guide  115
Restart Test
Users are able to clear the prior captured readings and refresh the 
minimum, maximum and average values. By enabling this function, the 
instrument will restart and retest multimeter measurements.
To enable the restart test function, press F4 in each of the respective 
multimeter submenu. This feature is not available for diode test and 
capacitance measurement.
Auto-range Mode
All multimeter measurement is set to Auto- range mode as default. To 
enable or disable manual range mode, do the following:
1 Press   button to enable manual range mode. The “AUTO” sign 
displayed at the right corner will disappear.
2 Notice the range shown below the bar graph changes with every press
of the   button.
3 Select your preferred range and perform your measurement.
4 To disable the manual range mode, press and hold   until the 
beeper sounds.