Commubox FXA195
Endress + Hauser 3
Operating conditions: Environment
Permitted ambient temperatu-
res
• Nominal operating range: -20 °C ... +50 °C
• Storage temperature: -40 °C ... +85 °C
• Humidity: 0 % ... 95 % (no condensation)
Electromagnetic
compatibility (EMC)
Interference Emission to EN 61326, Electrical Equipment Class B. Interference immunity to EN 61326.
Application
in conjunction with protec-
tion functions
Commubox FXA195 can be connected reactionless to protection functions that are graded as SIL 2 in
accordance with IEC 61508.
Mechanical construction
Design, dimensions Housing dimensions: 143 x 60 x 30 mm.
Weight approx. 200 g
Certificates and approvals
CE mark The Commubox meets the legal requirements of the EC directives.
Endress+Hauser confirms that the device has been successfully tested by applying the CE label.
Ex-approval See ordering information.
External standards
and guidelines
Other standards and guidelines that were taken into account when designing and developing FXA195.
EN 60529
Ingress protections for housing (IP code)
EN 61010
Safety requirements for electrical equipment for measurement, control and laboratory use
EN 61326
Interference emission (Class B operating equipment), interference immunity (Appendix A - industrial sector)
SFF
1
1) SFF (safe failure fraction) = proportion of safety-related faults
60%
TI
1
1) TI = test interval between function tests of the protection function (in years)
PFD
avg
2
2) PFD
avg
= average probability of dangerous failure on demand
1 year 1.23 x 10
-6
5 years 6.13 x 10
-6
10 years 1.23 x 10
-5
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