Principle Of Operation Of Oxymat 7 - Siemens SIPROCESS GA700 Operating Instructions Manual

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3.6 Principle of operation of OXYMAT 7

3.6 Principle of operation of OXYMAT 7
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③
④
⑤
⑥
Figure 3-8
In contrast to other gases, oxygen is highly paramagnetic. This physical property is used to
determine oxygen concentration in gases.
Oxygen molecules in an inhomogeneous magnetic field always move toward the higher field
strength. This results in a higher oxygen concentration where the field strength is higher (higher
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Reference gas inlet
Restrictors
Reference gas channels
Microflow sensor
Sample gas inlet
Measuring chamber
Principle of operation of OXYMAT 7
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7 8
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2
1
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Paramagnetic measurement effect
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Electromagnet with alternating current strength
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Sample gas and reference gas outlet
⑩
Microflow sensor in the vibration compensation system
(flow-type)
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Vibration compensation system (optional)
Operating Instructions, 05/2015, A5E35640463-02
Field device