Oxymat 7 - Siemens SIPROCESS GA700 Operating Instructions Manual

Commissioning
9.5 Zero point error
9.5.1

OXYMAT 7

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
The 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
112
Zero point error of organic gases
absolute, is listed in the following table.
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
Operating Instructions, 05/2018, A5E31930403-06
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
Wall-mounted device