Installation; Pressure Applications - Siemens Sitrans LR250 Operating Instructions Manual

Installation

WARNINGS:
• Installation shall be performed only by qualified personnel and in
accordance with local governing regulations.
• Handle the device using the enclosure, not the antenna or the process
connection tag, to avoid damage.
• Take special care when handling the threaded PVDF antenna. Any dam-
age to the antenna surface, particularly to the tip, could affect perfor-
mance.
• Materials of construction are chosen based on their chemical compati-
bility (or inertness) for general purposes. For exposure to specific envi-
ronments, check with chemical compatibility charts before installing.
Notes:
• For European Union and member countries, installation must be according to ETSI
EN 302372.
• Refer to the device nameplate for approval information.
1)

Pressure Applications

WARNINGS:
• Never attempt to loosen, remove, or disassemble process connection
or instrument housing while vessel contents are under pressure.
• The user is responsible for the selection of bolting and gasket materi-
als which will fall within the limits of the flange and its intended use
and which are suitable for the service conditions.
• Improper installation may result in loss of process pressure
Notes:
• The process connection tag shall remain with the process pressure boundary
1)
assembly . In the event the instrument package is replaced, the process connection
tag shall be transferred to the replacement unit.
• SITRANS LR250 units are hydrostatically tested, meeting or exceeding the require-
ments of the ASME Boiler and Pressure Vessel Code and the European Pressure
Equipment Directive.
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 pro-
cess connection body and emitter, but normally excluding the electrical enclosure.
7ML19985JF04 SITRANS LR250 (PROFIBUS PA) – OPERATING INSTRUCTIONS Page 19