Teledyne 6200A - Sulfides analyzer - Manual (Page 124)

TAI Model 6200A SO
2
Analyzer Operator Manual, 02164, Rev. G
1. Zero calibration procedure is identical to Table 7-11.
2. Generate the SO
2
concentration to approximately 80% of the URL of the range.
Calculate the expected concentration as follows.
[ ] . SO
P
F F
c
2
3
4
4
10
382 10 =
Ч
+
Ч Ч − --------------------------------------- Equation 7.2
[SO
2
] = SO
2
gas concentration, ppm
P = permeation flow rate at the specific temperature, ug·SO
2
/min.
F
c
= carrier flow rate over the permeation tube, SLPM (25 o C, 760 mmHg)
F
d
= diluent air flow rate, SLPM (25 o C, 760 mmHg)
Figure 7-3: Diagram F Permeation Calibration System
7-17