Commercial Permeation Systems; Figure 4-2. Permeation Tube System - Thermo Scientific 43iQ Instruction Manual

Commercial Permeation
Thermo Scientific
Figure 4–2. Permeation Tube System
The SO output level is calculated from:
2
Where:
[SO
P = permeation rate in µg/min
F
T
K (SO
Commercial permeation systems, such as the Thermo Scientific 146iQ
Systems Multigas Calibration System, are available for this requirement. Refer to
the instrument instruction manual for more information.
In addition to the 146iQ and other commercial permeation systems, the
43iQ can also be configured with an optional permeation oven to supply
calibration gas for the instrument. The operation of the internal
permeation oven is described in Chapter 9,
[
SO
2
] = SO output concentration in ppm
2 OUT 2
= total flow rate of gas after mixing chamber (F
) = 0.382 constant for SO
2
P x K
=
]
OUT
F
T
+ F ) in liters/minute
P D
permeant
2
"Optional Equipment".
43iQ Instruction Manual
Calibration
Equipment Required
4-5