ABB ACX Commissioning Instruction page 64

AO2000: Air Pressure Correction
Air Pressure Effect
Measures to Minimize
Air Pressure Effect
In which analyzer
modules is a pressure
sensor installed?
Air Pressure Values
64
A specific amount of change in air pressure will result in a specific change in a
measurement value, depending on the measurement principle employed by the
analyzer module.
Air pressure effect can be minimized by:
•
Installing a pressure sensor in the analyzer module (this can only be done at the
factory) or
•
Entering the current atmospheric pressure as a correction value.
Analyzer module
Uras26, Limas21, Magnos206, Magnos28
Magnos27, Fidas24
→
MENU Diagnostic/Information
Use the
item and select the appropriate analyzer module to determine if a pressure sensor is
installed.
Operating Altitude
meters above mean
sea level
–200
–100
±0
+100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
1700
1800
1900
2000
ACX Analyzer System Commissioning Instruction
Mean Air Pressure
hPa (mbar)
1037
1025
1013
1001
989
977
965
955
943
932
921
909
899
888
877
867
856
845
835
825
815
804
793
Pressure sensor
installed ex works
cannot be installed
→
System overview
psi mm Hg (Torr)
15.04 778
14.87 769
14.69 760
14.52 751
14.34 742
14.17 733
14.00 724
13.85 716
13.68 707
13.52 699
13.36 691
13.18 682
13.04 674
12.88 666
12.72 658
12.57 650
12.42 642
12.26 634
12.11 626
11.97 619
11.82 611
11.66 603
11.50 595
CI/ACX-EN Rev. D
menu
in Hg
30.63
30.28
29.92
29.57
29.21
28.86
28.50
28.19
27.84
27.52
27.21
26.85
26.54
26.22
25.91
25.59
25.28
24.96
24.65
24.37
24.06
23.74
23.43