LumaSense Technologies INNOVA 1412i - Manual (Page 91)

Chapter 8
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BE6025-15 1412i Photoacoustic Gas Monitor LumaSense Technologies A/S
Page 91 of 202
8.1 Displayed Monitoring Task Data
When the Monitor is switched on, but not being operated in any
mode, the screen display text identifies the data stored in its Display
Memory, by displaying the day and time of the first stored
measurement cycle of the monitoring task, as well as the day and
time of the last measurement cycle of the monitoring task. For
example:
DATA IN DISPLAY MEMORY RECORDED FROM
2014-01-16 09:50 TO 2014-01-16 10:04
If the Monitor has just been fully reset then the display will just
show the current time and report that the monitor is ready for use.
The Set-up parameters describing a monitoring task and the
measurement data collected during the task are stored as a list in
the Display Memory. You can scroll through the set-up parameters as
well as the data collected during the task by using the direction
push-buttons, q to scroll “vertically” downwards, and p to scroll
“vertically” upwards through the list. Fig.8.1 illustrates how the data
is organised:
Identification of Measurements:
This screen provides the date and time of the first and last
measurement results, which are stored in Display Memory.
Identification of Each Monitored Gas:
This display identifies the gases monitored during the task. By using
the u push-button, one can find the names of all the gases, which
were monitored during the displayed task.
Statistical Analysis of Measurement Results for Each Gas:
Using the individual measured gas concentration stored in Display
Memory, when Store Measurement History is selected, a statistical
analysis is performed which provides a summary of the stored
measurement results. The MAX (maximum), MIN (minimum) gas
concentrations are displayed, and the µ (Mean or Linear Average)
and σ (Standard Deviation) values are calculated and displayed. A
description of these statistical terms can be found in section 8.2.1 .
During the performance of a monitoring task the statistical analysis is
updated constantly.
List of Individual Measurement Results:
Each of these displays provides the date and time each measurement
cycle was performed and the concentration of the gas whose name
appears on the screen. In some cases an asterisk (*) will be shown
alongside the gas/vapour concentration. When such an asterisk is