Vega VEGAMET 381 Ex Safety Manual - Contents
Contents
1
Scope
1.1
Instrument version . . . . . . . . . . . . . . . . . . . . . . . . . .
4
1.2
Application area . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4
1.3
SIL conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4
2
Planning
2.1
Safety function . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
2.2
Safe state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
2.3
Prerequisites for operation . . . . . . . . . . . . . . . . . . . .
5
3
Safety-related characteristics
3.1
General figures for all applications. . . . . . . . . . . . . . .
7
3.2
Specific figures for application 1 . . . . . . . . . . . . . . . .
7
3.3
Specific figures for application 2 . . . . . . . . . . . . . . . .
8
3.4
Specific figures for application 3 . . . . . . . . . . . . . . . .
8
3.5
Specific figures for application 4 . . . . . . . . . . . . . . . .
9
3.6
Supplementary information . . . . . . . . . . . . . . . . . . . . 10
4
Set up
4.1
Instrument parameter adjustment. . . . . . . . . . . . . . . . 12
4.2
Mounting and installation. . . . . . . . . . . . . . . . . . . . . . 12
5
Reaction during operation and in case of failure
5.1
General information . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.2
Temporal behaviour in case of failure . . . . . . . . . . . . 13
6
Recurring function test
6.1
General information . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.2
Test application 1 - One relay output . . . . . . . . . . . . . 15
6.3
Test application 2 - Two relay outputs for range
monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15
6.4
Test application 3 - Two redundant relay outputs . . . . 16
6.5
Test application 4 - Current output. . . . . . . . . . . . . . . 16
6.6
Calculation realy switching points and output current . 16
7
Supplement A - Test protocol function test
8
Supplement B - Explanations of terms
9
Supplement C - SIL conformity
2
VEGAMET 381 Ex • 4 … 20 mA signal conditioning instruments
1 C
ontents
39686
-EN
-110930