Siemens AG
SIL Safety Manual ULTRAMAT 6 Gas analyzers 10 of 19
A5E00729183-02
3.3 Settings
After assembly and commissioning in line with the device manual, the
following parameter settings should be made for the safety function:
Safety parameters
Please enter following parameter via ULTRAMAT 6 menu:
Function
Number
Function
70
Analog Output Select NAMUR/ 4-20 mA
Reference
Instruction Manual ULTRAMAT 6E/F, OXYMAT 6E/F
Protection against configuration changes
After configuration, the ULTRAMAT 6 access codes (function number 79) shall
be changed so that the device is protected against unwanted and
unauthorized changes/operation.
Checking the safety function after installation
After installation of the ULTRAMAT 6 a safety function test has to be carried
out (see chapter 4 “Maintenance“ and 5 “Operation“ of the instruction manual
ULTRAMAT 6E/F, OXYMAT 6E/F).
Using zero gas, i.e. N
2, 4 mA must be measured at the analog output.
For the test of the safety function it is fundamental to use a second reference
gas with a defined proportion of the component to be measured. The results
of the measurement must be within a range of ±5% (full span) of the
expected result.
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