5
Directives and standards
Pressure Equipment Directive 2014/68/EU
Safety temperature limiters/monitors are safety accessories as defined in the Pressure Equipment
Directive (PED). The temperature switch TRS 5-50 and the temperature transmitter TRV 5-40 (together
with control unit NRS 1-40.1) in conjunction with temperature sensors TRG 5-6.. are EC type approved
according to EN 12952/EN 12953. These Directives state, among other things, the requirements made on
limiting systems and equipment for steam boiler plants and (pressurised) hot-water installations.
Functional Safety acc. to IEC 61508
The temperature switch TRS 5-50 and the temperature transmitter TRV 5-40 (together with control unit
NRS 1-40.1) in conjunction with temperature sensors TRG 5-6.. are certified to IEC 61508. This standard
describes the functional safety of safety-related electrical/electronic/programmable electronic
systems.
The equipment combination TRG 5-6.. + TRS 5-50 corresponds to a type B subsystem with Safety
Integrity Level (SIL) 3.
The combination TRG 5-6.. + TRV 5-40 (with NRS 1-40.1) corresponds to a type B subsystem with
Safety Integrity Level (SIL) 2.
According to the European Directive 2014/34/EU the equipment must
not
be used in explosion-risk
areas.
ATEX (Atmosphère Explosible)
DIN EN 14597
The temperature sensor TRG 5-6.. in conjunction with temperature switches TRS 5-50 and TRS 5-52
or in conjunction with temperature transmitter TRV 5-40 (together with control unit NRS 1-40.1) is type
approved to DIN EN 14597.
DIN EN 14597 describes and specifies the requirements made on (safety) temperature limiters/monitors.
Approvals for Marine Applications
The temperature sensor TRG 5-6.. in conjunction with temperature switch TRS 5-50 is approved for
marine applications.
Note on the Declaration of Conformity / Declaration by the Manufacturer
For details on the conformity of our equipment according to the European Directives see our Declaration
of Conformity or our Declaration of Manufacturer.
The current Declaration of Conformity / Declaration of Manufacturer are available in the Internet under
www.gestra.com/documents or can be requested from us.
