Emerson Process Management GmbH & Co. OHG
3-7
X-STREAM XE
Instruction Manual
HASXEE-IM-HS
10/2012
3
Measuring Principles
3.2 Oxygen Measurement
Tab. 3-2: Solvent Resistant Paramagnetic Sensor -
Approved Solvents
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.
Approved solvents
(inclusive accompanying
disturbing components)
Acetic acid
Heptane
Acetone
Hexane
Acrolein
Isopropanol
Aromatics
Methanol
Butadiene
Methyl acetate
Butadiene-1
Methylethylketone
Butadiene-2
Methylmercaptane
C2H2
Propadiene
C4H8
Propene
C5
Propylen oxide
C6H12
Propylene
CH3COOH
Toluene
Cyclohexane
Vinyl acetate
Cyclohexanon
Vinyl acetylene
Dimethyl sulfide
Xylene
Ethanol
i-Butyr acid
Ethene
i-Butyr aldehyd
Ethylene
i-Propylformiat
Ethylene oxid
n-Butane
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 have limited
lifetime and are consumables!
Component
Measuring cell type
Solvent resistant
Corrosion resistant
(Chlorine, dry)
Case
SS 1.4571
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: Paramagnetic Sensor - Medium Affected
Materials
Another variation of measuring cell has the
following materials in contact with the sample:
A316 stainless steel, viton ‘O’ ring, borosilicate
glass, electroless nickel, platinum, platinum/
iridium alloy.
For the solvent resistant version of this cell,
the ‘O’ ring made of viton is replaced by a
chemraz
®
model.
Содержание Rosemount X-Stream Series
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