User`s guide

Features and Functions 2
Additional Features
U1731C/U1732C/U1733C User’s Guide 45
Press and hold for more than 1 second to exit this
mode.
Making relative measurements (Null)
When making relative measurements, also called null, each
reading is the difference between a stored (selected or
measured) relative value and the input signal.
One possible application is to increase the accuracy of a
resistance measurement by nulling the test lead resistance
(test leads shorted). Nulling the leads is also particularly
important prior to making capacitance measurements (test
leads open).
Press the key to enter the relative mode and store the
display reading as a reference value. The LCR meter will
then display all subsequent readings relative to the reference
value.
Figure 2-18 Using the Null function
Limit
DQO
Cal
Null
Cal
Null