LumaSense Technologies 3434i SF6 Leak Detector User Manual
Page 47
Chapter 4
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BE6028-14
3434i SF6 Leak Detector
LumaSense Technologies A/S
Page 47 of 191
MAX = maximum concentration of gas A measured during the
period of time the monitoring task has been performed.
MIN = minimum concentration of gas A measured during the
period of time the monitoring task has been performed.
ALARM 1= the user-defined concentration of gas A 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 gas A
concentrations measured during the period of time the
monitoring task has been performed
s
= standard deviation of gas A’s concentrations from the
mean value (m) described above (see
further details).
All numbers are written in the exponential form, for example:
14.5E+00 = 14.5 x 10
+0
= 14.5
The concentration unit in this case is mg/m3 as this was chosen in
the active set-up (see
3. Press q.
A
: Sulphur Hexafluoride
972.06 mBar
2014-01-16 09:50:32 ___________ 7.42 mg/m3
A
: Sulphur Hexafluoride
972.06 mBar
2014-01-16 09:51:33 ___________ 7.42 mg/m3
As you can see, the display provides the date and time at which the
measurement was made, and the concentration of gas A is given in
the units mg/m
3
because this was the unit chosen for gas
concentration in the active set-up. The dashed lines, which appear
after the time will be replaced by a number as soon as the
monitoring task has been stopped (see
After scrolling through the list of individual measurement results for
gas A, the following text is displayed:
SAMPLING IS CONTINUOUS
MONITORING PERIOD IS NOT PRE-SET