1 Introduction  
Your Multimeter in Brief
20 U1231A/U1232A/U1233A User’s Guide
Tab le  1- 5 U1231A/U1232A/U1233A rotary switch functions 
Legend Functions shown in the primary display
Learn 
more on:
U1233A U1232A U1231A Default When   is pressed
 VZ
LOW
 Auto (AC/DC) V
Cycles between 
• VZ
LOW
 DC (AC) V, 
• VZ
LOW
 AC (DC) V, or 
• VZ
LOW 
Auto (AC/DC) V.
page 36
Off Off page 5
AC V AC Hz
page 32 and 
page 62
DC V N/A page 34
Resistance measurement (Ω)
Cycles between
• Short ( ) continuity,
• Open ( ) continuity
[1]
, or
• Resistance measurement (Ω)
page 39 and 
page 41
Diode test (V) N/A page 45
U1233A: Capacitance 
measurement (F)
U1232A: Capacitance 
measurement (F)
U1231A: Capacitance 
measurement (F)
U1233A: Temperature 
measurement
U1232A: Auxiliary temperature 
measurement
U1231A: N/A
page 49 and 
page 51