Table 9-4 Zero Point Error Of Noble Gases; Table 9-5 Zero Point Error Of Inorganic Gases - Siemens SIPROCESS GA700 Operating Instructions Manual

Commissioning
9.3 OXYMAT 7
Table 9-4
Accompanying gas (concentration 100 vol. %)
Helium
Neon
Argon
Krypton
Xenon
Table 9-5
Accompanying gas (concentration 100 vol. %)
Ammonia
Hydrogen bromide
Chlorine
Hydrogen chloride
Dinitrogen monoxide
Hydrogen fluoride
Hydrogen iodide
Carbon dioxide
Carbon monoxide
Oxygen
Nitric oxide
Nitrogen
Nitrogen dioxide
Sulfur dioxide
Sulfur hexafluoride
Hydrogen sulfide
Water
Hydrogen
Since the zero point deviations are linear, it is easy to convert to lower interfering gas
concentrations.
In the case of interfering gases with a constant concentration an interfering gas correction with
constant zero point offset can be carried out. If the concentration of the accompanying gases
changes during the oxygen measurement, a variable interfering gas correction has to be
carried out. An external concentration must be determined for each interfering gas with a
considerable zero point deviation. Its result is fed as interfering gas concentration into the
OXYMAT 7 analyzer module and the correction value is calculated constantly.
106
Zero point error of noble gases
Zero point error of inorganic gases
Zero point deviation in
vol. % O
He
Ne
Ar
Kr
Xe
Zero point deviation in
vol. % O
NH
3
HBr
Cl
2
HCl
N O
2
HF
HI
CO
2
CO
O
2
NO
N
2
NO
2
SO
2
SF
6
H S
2
H O
2
H
2
Operating Instructions, 05/2015, A5E31874006-03
absolute
2
+0,33
+0,17
-0,25
-0,55
-1,05
absolute
2
-0,20
-0,76
-0,94
-0,35
-0,23
+0,10
-1,19
-0,30
+0,07
+100
+42,94
0,00
+20,00
-0,20
-1,05
-0,44
-0,03
+0,26
Rack-mounted device