2-10
IM 704510-01E
• Relation between the inhibit signal and gating/external arming/arming delay
S1
S2
S3
S4
External inhibit
input signal
Gate
Input signal
External arming
input signal
Measurement
inhibit period
Arming delay
Not measured
Gate open
Measurement start
Not counted as events
when inhibit is active
Resume
measurement
Block Sample (see section 6.5 for the operating procedure)
When using a single measurement function in time stamp mode or hardware histogram
mode, “single block measurement” can be repeated a specified number of times (block
sampling). In block sampling, “single block measurement” is repeated a specified number
of times first. Then, “data processing and display” are performed collectively.
Also, in block sampling, you can set a pause time, defined as the period of time between
block measurements. The pause time is set in terms of the time or the number of events.
The display and analyzed items of data that has been block sampled varies depending on
the sampling mode as follows.
When in time stamp mode
The histogram, list, or time variation for each measurement block can be displayed and
statistical calculations can be performed. The maximum selectable block size (number
of repetitions: N) is 250. However, the block size can be set up to 1000 if there is no
pause time.
When in hardware histogram mode
Histogram or list of all measurement blocks can be displayed and statistical calculations
can be performed on them. Lists and statistical calculations on each block are not
allowed. The maximum selectable block size (number of repetitions: N) is 1000.
The relationship between the pause time and arming during block sampling is shown
below.
Arming: Ext/with arming delay, pause time: OFF
S1
S2
S3
S1
S2
S3
External arming
input signal
Arming delay
Arming delay
Input signal
1st block
2nd block
Measurement start
Measurement start
• Arming: Auto, pause time: OFF
S1
S2
S3
S1
S2
S3
S1
S2
S3
Input signal
1st block
2nd block
3rd block
• Arming: Auto, pause time: enabled
S1
S2
S3
S1
S2
S3
S1
S2
S3
1st block
2nd block
3rd block
Input signal
Rest time
Rest time
2.5 Setting Measurement Conditions