LumaSense Technologies INNOVA 1412i - Manual (Page 99)

Chapter 8
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BE6025-15 1412i Photoacoustic Gas Monitor LumaSense Technologies A/S
Page 99 of 202
sometime between the previous sample time and the time which
appears alongside this message.
The symbol “E” is replaced by the text User Event NumberX: This
indicates that the EVENT button was pressed while this measurement
cycle was being performed. The number indicates the total number of
“events” which have been marked during this monitoring task, at the
time this sample was taken.
Gas Marks:
The symbol “B” is replaced by a straight line (_______) which
indicates that the Monitor was unable to calculate the concentration
of the named gas in this sample.
Other Marks Used:
……This symbol indicates either: (1) that this gas was not measured;
or (2) that this gas was not selected to be printed out (see section
10.5 ).
8.3 Storage Space in the Display Memory
The total space available in the Display Memory to store data is
131072 measurement cycles. Depending on the time for one
measurement cycle the capacity will be as follows.
If a measurement cycle in which gas A and water vapour are
measured with continuous sampling takes 15s, then the Display
memory space will be 546 hours = 22 days.
If a measurement cycle where 5 gases and water vapour are
measured with continuous sampling takes 60 s, then the Display
memory space will be 2184 hours = 91 days.
The Monitor will overwrite the oldest stored measurement data when
the Display memory is full. This is done by deleting data in blocks of
2048 measurement cycles.
For further information regarding measurement cycles see chapter 4 .