Nozzle Design - Siemens SITRANS L 260 Manual De Inicio Rápido

Pressure Application
WARNINGS:
• This product is designated as a Pressure Accessory per Directive 97 / 23 / EC, and
is not intended for use as a safety device.
• Do not attempt to loosen, remove, or disassemble process connection or
instrument housing while vessel contents are under pressure.
• Improper installation may result in loss of process pressure.
1
Installation
WARNINGS:
• Installation shall only be performed by qualified personnel and in
accordance with local governing regulations.
• Materials of construction are chosen based on their chemical compatibility (or
inertness) for general purposes. For exposure to specific environments, check
with chemical compatibility charts before installing.
Notes:
• For European Union and member countries, installation must be according to ETSI EN
302372.
• The Process Device Tag shall remain with the process pressure boundary assembly
the event the instrument package is replaced, the Process Device Tag shall be transferred
to the replacement unit.
• SITRANS LR260 units are hydrostatically tested, meeting or exceeding the requirements
of the ASME Boiler and Pressure Vessel Code and the European Pressure Equipment
Directive.
Installation guidelines
• Provide easy access for viewing the display and programming via the hand programmer.
• Provide an environment suitable to the housing rating and materials of construction.
• Provide a sunshield if the device will be mounted in direct sunlight.

Nozzle design

• The end of the horn must protrude a minimum of
10 mm (0.4") to avoid false echoes being reflected
from the nozzle.
• Optional antenna extension: 100 mm (3.93"),
200 mm (70.9"), 500 mm (19.69"), 1000 mm (39.4")
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
emitter, but normally excluding the electrical enclosure.
2.
Extensions are not recommended for applications where there may be excessive visible vibration.
Please consult factory for more information.
Page EN-4 SITRANS LR260 (PROFIBUS PA) – QUICK START MANUAL
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1
. In
min. clearance:
10 mm (0.4")
A5E32114443