Digital Multimeter Operation 2
Making Measurements
U3606A User’s and Service Guide 39
Figure 2-6 Terminal connections for frequency, pulse width, and duty cycle measurement 
via the current path
• The range and resolution of the frequency, pulse width, and duty cycle 
measurement follows the configuration of the AC voltage or AC current 
measurement (dependant on the path chosen).
• The U3606A will automatically select a suitable range for AC voltage 
and AC current measurements by default (autoranging). To manually 
select a range, see “Selecting a Range” on page 54 for more 
information.
• The U3606A resolution is set to 5½ digits by default. To change the 
resolution, see “Setting the Resolution” on page 55 for more 
information.
If the frequency signal measured is below 20 Hz, you must manually 
set the range of the AC voltage or AC current measurement to acquire 
a stable reading. 
To manually select a range, see “Selecting a Range” on 
page 54 for more information.