Siemens SITRANS LR250 (HART) Manual De Inicio Rápido página 8

Pressure Application
WARNINGS:
• Never attempt to loosen, remove, or disassemble process connection or device
housing while vessel contents are under pressure.
• The user is responsible for the selection of bolting and gasket (except for
Flanged encapsulated antenna) materials which will fall within the limits of
the flange and its intended use and which are suitable for the service condi-
tions.
• For Flanged encapsulated antenna, lens acts as integral gasket, no other
required.
• Use spring washers for Flanged encapsulated antenna.
• Improper installation may result in loss of process pressure.
Notes:
• The process connection tag shall remain with the process pressure boundary assembly
• SITRANS LR250 units are hydrostatically tested, meeting or exceeding the requirements of
the ASME Boiler and Pressure Vessel Code and the European Pressure Equipment Direc-
tive.
Pressure Equipment Directive, PED, 97/23/EC
Siemens Level Transmitters with flanged, threaded, or sanitary clamp type process mounts
have no pressure-bearing housing of their own and, therefore, do not come under the Pressure
Equipment Directive as pressure or safety accessories, (see EU Commission Guideline 1/8 and
1)
1/20).
1)
The process pressure boundary assembly comprises the components that act as a barrier against
pressure loss from the process vessel: that is, the combination of process connection body and emit-
ter, but normally excluding the electrical enclosure.
Page EN-6 SITRANS LR250 (HART) – QUICK START MANUAL
1)
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