Default value
entered
1
(Vol.-% H
2
O)
Absolute differ‐
ence to input
value
(Vol.-% H
2
O)
Process tempera‐
ture (°C)
Additional rela‐
tive % CO meas‐
urement error
2
10
-10
400
10
15
-5
100
0.8
15
-5
200
1.9
15
-5
300
3.2
15
-5
400
4.5
25
5
100
-0.7
25
5
200
-1.7
25
5
300
-2.8
25
5
400
-4
30
10
100
-1.4
30
10
200
-3.3
30
10
300
-5.3
30
10
400
-7.6
1
See Section 9.4.8
2
Based on 500 ppm CO, the uncertainty is lower for higher concentrations
Table 6: Actual process moisture at
30
Vol.-% H
2
O
Default value
entered
1
(Vol.-% H
2
O)
Absolute differ‐
ence to input
value
(Vol.-% H
2
O)
Process tempera‐
ture (°C)
Additional rela‐
tive % CO meas‐
urement error
2
20
-10
100
1.4
20
-10
200
3.3
20
-10
300
5.9
20
-10
400
7.8
25
-5
100
0.7
25
-5
200
1.6
25
-5
300
2.8
25
-5
400
3.7
35
5
100
-0.6
35
5
200
-1.5
35
5
300
-2.6
35
5
400
-3.4
40
10
100
-1.2
40
10
200
-2.8
40
10
300
-4.9
40
10
400
-6.5
1
See Section 9.4.8
2
Based on 500 ppm CO, the uncertainty is lower for higher concentrations
The presence of CO
2
in the process gas has an effect on CO measurement at high
temperatures. The more the temperature increases at constant CO
2
concentration,
the higher the relative CO measurement error becomes. Consider the influence in the
following Table.
3
PRODUCT DESCRIPTION
14
O P E R A T I N G I N S T R U C T I O N S | GM901-02
8008932/16YT/V4-0/2022-02 | SICK
Subject to change without notice
