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Infrared Gas Analyzer Operation
Teledyne Analytical Instruments 39
The numbered call outs in Figure 3-4 refer to:
No. Name Function
(1) Component
display
Displays component of instantaneous
value, corrected instantaneous value,
corrected average value, etc.
(2) Concentration
display
Displays measured value of concentration.
(3) Range display Displays range values.
(4) Unit display Displays unit with ppm and vol %.
(5) Peak alarm
com
p
onent
Displays peak alarm component.
(6) Peak alarm
concentration
Displays peak alarm concentration display.
(
U
pp
er limit value
)
(7) Peak alarm
times
Displays the alarm times exceeding the
p
eak value.
(8) Peak alarm
unit dis
p
la
y
Displays units of peak alarm with times/H.
Instantaneous value and concentration value:
The concentration display of Ch (component) where sampling
components such as “CO
2
”, “CO” or “O
2
are displayed in the component
display, indicates current concentration values of the measured
components contained in gas that is now under measurement.
O
2
correction concentration values:
Ch components where “cv**” is displayed as “cv CO” in the
component display are calculated values. They are obtained from the
following equation by setting sampling components, O
2
instantaneous/
concentration values and O
2
correction reference value (see item 6.8).
Cs
Os21
On-21
output Correction ×
⎟
⎠
⎞
⎜
⎝
⎛
−
=