User`s guide

Getting Started 2
Agilent 34980A Mainframe User’s Guide 39
Using the Measure Keys
In Menu Examples 2 and 3 (the following two subsections), you will use
keys in the front- panel Measure group. The three keys in the Measure
group control the initiation of measurements (conversely, the menu keys
in the Configure group allow you to set parameters for measurements).
Depending on which measurement key you select, you can have
complete/direct control over the switching and measurement operations,
or you can allow the 34980A to automatically control the measurement to
capture the desired data.
The three keys in the Measure group are:
• DMM - When pressed, the internal DMM takes
continuous measurements on whatever signal you have
routed to it. This mode allows the most flexibility, but
you must manually control the opening and closing of
relays.
• Channel - When pressed, the 34980A controls the
relays needed for the internal DMM to make
continuous measurements on a single selected
channel. The measurement configuration used for a
particular channel (as specified in the Channel menu
in the Configure group) is stored and recalled
whenever you select that channel.
• Scan - When pressed, the 34980A controls all the relays
required to make a series of sequential measurements,
even across multiple channels with unlike
measurement functions. Scan takes the measurements
and stores the results in volatile memory.