Siemens AG
7 of 19 SIL Safety Manual ULTRAMAT 6 Gas analyzers
A5E00729183-02
Control System
Figure 2-1 Example of a safety-instrumented system
Function
The measuring principle of the ULTRAMAT 6 gas analyzer operates on the
specific absorption of molecules in the middle infrared range(2 – 10 µm) and
is used to measure the concentration of ir active gases.
Special characteristics
- Four freely-programmable measuring ranges per component, also with
suppressed zero
- All measuring ranges are inear!
- The isolated analog output is set to 4 to 20 mA (NAMUR)
For safety instrumented systems the relay output is used for diagnostics only.
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