BUCHI NIRWare - Manual (Page 186)

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NIRWare Suite NIRWare 1.5 Software Manual
Activate the checkbox "Cyclic measurement enabled".
The cyclic measurement is started when the green start button is pressed, and ends when the red stop
button is pressed. In the meantime, the system will
1. Trigger a measurement,
2. Wait for the countdown to finish,
3. Start over again with step 1.
The picture shows the order of events during a cyclic measurement run. You can see that the individual
measurement times (tm1, tm2. tm3) are spaced at constant times; this is the ‘cyclic measurement
interval’.
It is important to understand that the interval is defined from start to start; this means that the countdown
is already started at the BEGINNING of the measurement, and not at the end!
The countdown duration is specified in the field ‘Cyclic measurement interval’ in the format
[d.][hh:]mm[:ss]. This means that if only one number is entered, it will be interpreted as minutes.
Example:
Input Time interval
"12" = 12 minutes
"0:01" = 1 second
"1:20:30" = 1 hour, 20 minutes and 30 seconds
"1.00:00:00" = 1 day (allowed max.)
To better understand the implications of this parameter, let’s look at two exemplary applications:
Application 1: Interval > Runtime for Measurement
Cyclic Measurement Interval = 1 [min], and
64 scans/ measurement = 64 * 0.5 sec / scan = ca. 32 seconds / measurement
will have a new measurement starting every minute: