Siemens SITRANS Probe LR Manuel D'utilisation page 6

Installation
WARNINGS:
• This product can only function properly and safely if it is correctly transported,
stored, installed, set up, operated, and maintained.
• Never attempt to loosen, remove, or disassemble process connection or instrument
housing while vessel contents are under pressure.
• This product is designated as a Pressure Accessory per Directive 97 / 23 / EC, and is
not intended for use as a safety device.
• 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.
• The user is responsible for the selection of bolting and gasket materials 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.
Mounting location
Recommendations
• Ensure ambient temperature is within –40 to +80 °C (–40 to +176 °F).
• Provide easy access for viewing the display and programming via the hand programmer.
• Ensure the environment is suitable to the housing rating and materials of construction.
Precautions
• Avoid proximity to high voltage or current wiring, high voltage or current contacts, and to
variable frequency motor speed controllers.
• Avoid interference to the emission cone from obstructions or from the fill path.
• Avoid central locations on vessels.
Coni
Conical
preferred
• Locate the antenna away from the side wall, to
avoid interference from indirect echoes.
• Avoid interference from objects such as ladders
or pipes, which can cause false echoes.
• Avoid interference from the fill path.
Page EN-4 SITRANS Probe LR – QUICK START MANUAL
Fl at
Flat Parabolic
undesirable
min. 300 mm (1 ft) for every
3 m (10 ft) of vessel height
beam
angle
o
28
7ML19985QP81