Application In Protection Functions; Technical Data - Endress+Hauser fieldgate FXA 520 Installations- Und Montageanleitung

Technical Data

Operating conditions
Electromagnetic
compatibility (EMC)

Application in protection functions

The FXA 520 can be attached back effect freely to protection functions that are classified in SIL 2 to IEC 61508.
1
SFF
1) SFF = Safe Failure Fraction
1
TI
1 year
5 years
10 years
1) Test Interval between life testing of the protection function (in years)
2) PFD = Probability (average) of a dangerous Failure on Demand
avg
24
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Interference Emission to EN 61326, Electrical Equipment Class B
Interference Immunity to EN 61326
60%
2
PFD
avg
-6
1,23 x 10
-6
6,13 x 10
-5
1,23 x 10
Endress+Hauser