3 Tester Features108 U1461A/U1453A User’s GuideRecording Measurement Data (Log)Log provides you with the convenience of recording test data for future review oranalysis. Since data is stored in the nonvolatile memory, the data remains savedeven when the tester is turned OFF or if the battery is replaced.Log collects measurement information over a user-specified duration. There arethree Log options that can be used to capture measurement data: manual(HAND), interval (AUTO), or event (TRIG).– A manual log stores an instance of the measured signal each time you pressand hold (see page 109).– An interval log stores a record of the measured signal at a user-specifiedinterval (see page 109).– An event log stores a record of the measured signal each time a triggercondition is satisfied (see page 110).Before starting a recording session, set up the tester for the measurements to berecorded.To change the Log option see “Changing the recording option” on page 126 formore information.See “Reviewing Previously Recorded Data (View)” on page 113 to review or erasethe recorded entries.Table 3-2 Log maximum capacityLog option Maximum capacity for savingManual (HAND) 100Interval (AUTO) 3000Event (TRIG) 3000NOTE Each recorded index includes two parameters: the primary display and thesecondary display. Examples include IR-V or Hz-V.