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Emerson Process Management GmbH & Co. OHG 3-7
X-STREAM XE
Instruction Manual
HASXEE-IM-HS
04/2010
3
Principles
3.2 Oxygen Measurement
Tab. 3-2: Solvent Resistant Paramagnetic Sensor -
Approved Solvents
Component
Measuring cell type
Solvent resistant
Corrosion resistant
(Chlorine, dry)
Case SS 1.4572 SS 1.4573
Pole nucleus Tantalum
Mirror Glass, Rhodium
Tension band Platinum alloy
Loop wire Platinum alloy
Supporting
wire
Platinum alloy
Cylinder Glass
Cylinder
bushing
Ceramics
Dumbbell Glass
Taring Epoxy Epoxy
Compound
material
Plumb bob, Epoxy Epoxy
Seals Kalrez Kalrez
Tab. 3-3: Solvent Resistant Paramagnetic Sensor -
Medium Affected Materials
3.2.1.2 Applications With Corrosive Or Solvent Components
Special paramagnetic oxygen sensors are
available to measure gases, containing cor-
rosive or solvent components.
See below tables for further information on
approved solvents, and medium affected
materials.
The table below shows, how accompanying
gases interfere the paramagnetical oxygen
measurement. If the concentration of such
gases is already given at time of enquiry, this
interference may be taken into account during
factory startup and thus minimized (option).
Tab. 3-4: Solvent Resistant Paramagnetic Sensor -
Cross Interference by Accompanying
Gases
100 % Gas Zero-level effect % O
2
Argon Ar -0.22
Carbon Dioxide CO
2
-0.27
Carbon Monoxide CO +0.01
Ethane C
2
H
6
-0.46
Ethene C
2
H
4
-0.26
Helium He +0.3
Hydrogen H
2
+0.24
Methane CH
4
-0.2
Neon Ne +0.13
Nitrogen N
2
+0.00
Nitrogen Dioxide NO
2
+28.0
Nitrogen Oxide NO +43.0
Nitrous Oxide N
2
O -0.2
Propane C
3
H
8
-0.86
Propene C
3
H
6
-0.55
Approved solvents
(inclusive accompanying disturbing
components)
Component Concen-
tration
Component Concen-
tration
Acetic acid 0.1- 20 %
Acetone 0.1- 20 %
Acrolein 0.1- 20 %
Aromatics 0.1- 20 %
Butadiene 0.1- 20 %
Butadiene-1 0.1- 20 %
Butadiene-2 0.1- 20 %
C2H2 0.1- 20 %
C4H8 0.1- 20 %
C5 0.1- 20 %
C6H12 0.1- 20 %
CH3COOH 0.1- 20 %
Cyclohexane 0.1- 20 %
Cyclohexanon 0.1- 20 %
Dimethyl sulde 0.1- 20 %
Ethanol 0.1- 20 %
Ethene 0.1- 20 %
Ethylene 0.1- 20 %
Ethylene oxid 0.1- 20 %
Heptane 0.1- 20 %
Hexane 0.1- 20 %
Isopropanol 0.1- 20 %
Methanol 0.1- 20 %
Methyl acetate 0.1- 20 %
Methylethylketone 0.1- 20 %
Methylmercaptane 0.1- 20 %
Propadiene 0.1- 20 %
Propene 0.1- 20 %
Propylen oxide 0.1- 20 %
Propylene 0.1- 20 %
Toluene 0.1- 20 %
Vinyl acetate 0.1- 20 %
Vinyl acetylene 0.1- 20 %
Xylene 0.1- 20 %
i-Butyr acid 0.1- 20 %
i-Butyr aldehyd 0.1- 20 %
i-Propylformiat 0.1- 20 %
n-Butane 0.1- 20 %
Conditions
· Single or summarized concentrations do not
exceed 20 %
· Gas passes gas cooler prior to entering the
analyzer
· Gas dew point at max. 5 °C
Solvent resistant sensors are consumables!