COSA Xentaur Xentaur XPDM - Manual (Page 23)

page 20
Appendix D: Uncertainty in LBS and PPMV calculations
Uncertainty of LBS-H2O calculation due to +/-3˚C measurment accuracy
Calculated LBS-H2O in Natural Gas @ STP
-80
-75
-70
-65
-60
-55
-50
-45
-40
-35
-30
-25
-20
0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
1 2 3 4 5 6 7 8 9
10 20 30
Measured Dewpoint ˚C
Dewpoint -3˚C
Dewpoint +3˚C
Uncertainty of ppmV calculation due to +/-3˚C measurment accuracy
Calculated ppmV
-80
-75
-70
-65
-60
-55
-50
-45
-40
-35
-30
-25
-20
0.5 0.6 0.7 0.8 0.9
1 2 3 4 5 6 7 8 9
10 20 30 40 50 60 70 80 90
100 200 300 400 500 600 700 800 900
1000
Measured Dewpoint ˚C
Dewpoint -3˚C
Dewpoint +3˚C