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IM 704420-01E
Explanation of Functions
1
Gate «See 4.4 for the operating procedure»
You can set the time (gate time) during which the measured values of pulse width and
time difference are stored in the acquisition memory. You can also set a gate by
specifying the number (number of events) of measured values to be acquired.
Event gate
10
5
measured values are stored in the acquisition memory. Of those values, the ones
that are in the measurement range, as determined by the measurement function, are
used to derive the measurement result (jitter). You cannot change the number of
events.
Time gate
You can select from 0.1 s, 0.5 s, and manual (1 ms to 1000 ms).
Arming «See 4.5 for the operating procedure»
Arming refers to the cue used to start the measurement. In contrast to trigger which
refers to the cue used to measure the pulse width or time difference of each pulse,
arming refers to the starting point of the measurement of a set of pulse widths or time
differences used to derive the jitter.
Auto arming (internal arming)
The internal signal of the TA120E is the arming source. Arming is the cue used to
start the first measurement (the first trigger).
External arming
Arming is activated when an external signal (arming source) is applied to the external
arming input connector. You can also select whether the rising or falling edge is used
to activate the arming.
Arming delay
When using external arming, you can delay the start of the measurement by a
given amount of time (delay time) after arming occurs. You can set the delay time
in the range from 0 ms to 1000 ms.
1.4 Acquisition Conditions for the Input Signal Being Measured
