Zero Point Error; Table 9-3 Zero Point Error Of Organic Gases - Siemens SIPROCESS GA700 Operating Instructions Manual
Continuous gas analysis, rack-mounted device
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In order for measurements with a measuring range of 2% to be realized, the exact O
of the reference gas "Air" must be known. Use this value as the setpoint for a zero point
calibration.
9.3.3
Zero point error
Accompanying gases (interfering gases) cause a zero point deviation that is positive with
paramagnetic gases and negative with diamagnetic gases. The extent of this offset per 100
vol. % accompanying gas, expressed in vol. % O
values in the tables refer to nitrogen at 60 °C and 1 000 hPa absolute to IEC 1207/3.
Table 9-3
Accompanying gas (concentration 100 vol. %)
Ethane
Ethene (ethylene)
Ethine (acetylene)
1.2 butadiene
1.3 butadiene
n-butane
Isobutane
1-butene
Isobutene
Dichlorodifluoromethane (R12)
Ethanoic acid
n-heptane
n-hexane
Cyclo-hexane
Methane
Methanol
n-octane
n-pentane
Isopentane
Propane
Propylene
Trichlorofluoromethane (R11)
Vinyl chloride
Vinyl fluoride
1.1 vinylidene chloride
Rack-mounted device
Operating Instructions, 05/2015, A5E31874006-03
Zero point error of organic gases
absolute, is listed in the following table. The
2
Zero point deviation in
vol. % O
C
H
2
6
C
H
2
4
C
H
2
2
C
H
4
6
C
H
4
6
C
H
4
10
C
H
4
10
C
H
4
8
C
H
4
8
CCl
F
2
2
CH
COOH
3
C
H
7
16
C
H
6
14
C
H
6
12
CH
4
CH
OH
3
C
H
8
18
C
H
5
12
C
H
5
12
C
H
3
8
C
H
3
6
CCl
F
3
C
H
Cl
2
3
C
H
F
2
3
C
H
Cl
2
2
2
Commissioning
9.3 OXYMAT 7
share
2
absolute
2
-0,49
-0,22
-0,29
-0,65
-0,49
-1,26
-1,30
-0,96
-1,06
-1,32
-0,64
-2,40
-2,02
-1,84
-0,18
-0,31
-2,78
-1,68
-1,49
-0,87
-0,64
-1,63
-0,77
-0,55
-1,22
105
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