Hioki Memory HiCorder MR6000 Instruction Manual page 103

4. [Period-in] trigger and
The instrument measures periods of the input waveform, which are the time lags between
consecutive two points at which the input voltage crosses the specified level in the positive or
negative direction. The period-trigger condition is satisfied when a period is inside the specified
range (In) or outside the specified range (Out).
The trigger point lag behind the actual trigger point by one sample. These triggers are disabled
when the sampling rate is set to 200 MS/s.
These triggers cannot be set when the envelope is used. These triggers cannot be set either when
Model MR8990 and Model 8970 is used.
Refer to "Operation available on the [Trigger] screen" and "[Period-out] trigger" (p. 100).
Level –f.s.
Default:
Slope
With
With
Period lower 0 or 5 times the sampling period or
limit* more
Period upper 20,000 times or less of the sampling
limit* period
Event With
With
Filter Off
*: The range of values that can be set for
the sampling rate (period).
[Period-out] trigger
Level
Period upper limit
Within the period range
Period lower limit
Setting
to +f.s.
0

OR
 ,
AND HIGH , LOW

OR 1 to 4,000

AND
 , 10 to 10,000
[Period lower limit]
Triggering the Instrument Using Analog Signals
Upper
limit value
Out of the
range
Description
Allows you to type the level for detecting the
rising or falling slopes of the signal.
Allows you to select which of the following
points to use to calculate the periods: two
consecutive points at which the signal crosses
the specified level in the positive direction; or
those in the negative direction.
The period-lower limit cannot be set to a value
higher than the [Period upper
period-lower limit is set to [0], the instrument
ignores the value under [Period lower
and the period-trigger condition is satisfied
using the value under [Period upper limit]
only.
The period-higher limit cannot be set to a value
lower than the [Period lower
Allows you to enter the period trigger in terms
of the number of events.
The instrument counts the number of times
the period-trigger condition is satisfied. Only
after the number reaches the specified event
number, the analog trigger is generated.
Not available
Allows you to enter the period trigger in
terms of the number of samples. Only after
the period-trigger condition continues to be
satisfied during the specified period, the
analog trigger is generated. Setting this option
prevents the instrument from being triggered
unintentionally due to noise.
and [Period upper limit] varies according to
5
limit]. When the
limit],
limit].
99