LumaSense Technologies INNOVA 1412i - Manual (Page 53)

Chapter 4
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BE6025-15 1412i Photoacoustic Gas Monitor LumaSense Technologies A/S
Page 53 of 202
1. Press q and u.
The following text appears on the display:
WATER VAPOUR MEASURED
The displays which follow, indicate the type of text which appears
each time q is pressed:
WATER: MAX 8.55E+00 m 8.15+00
ALARM 1 MIN 7.01E+00 s 816E-03
This is the statistical report of the monitored gases/vapours
displayed when the monitoring task is complete. In this case where:
MAX = maximum concentration of water vapour measured
during the whole monitoring task.
MIN = minimum concentration of water measured during the
whole monitoring task.
ALARM 1 = the user-defined concentration of water vapour which,
if measured by the Monitor, will trigger a switch in the
Monitor and activate an external alarm relay
connected to it.
m = linear average, or mean value, of all the water vapour
concentrations measured during the whole
monitoring task.
s = standard deviation of water-vapour’s concentrations
from the mean value (m) described above (see section
8.2.1 for further details).
The humidity unit in this case is Tdew because this is the unit chosen
in the active set-up (see section 4.3.2 ).
W: WATER VAPOUR: 971.88mBar
2014-01-16 09:50:32 1 7.49Tdew
W: WATER VAPOUR: 971.88mBar
2014-01-16 09:51:33 2 7.49Tdew
As you can see the measurement cycles are numbered sequentially
as soon as the monitoring task has been stopped for example, the
above measurement was made at 09:51:33 on the 16 th of January
and it was the second measurement cycle of the monitoring task.
The concentration of water vapour is given in the units of Tdew
because this was the unit chosen for humidity in the active set-up.