User's Manual

Page 18 SITRANS LR560 (PROFIBUS PA) – OPERATING INSTRUCTIONS 7ML19985LT01
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Installation
Mounting location
Nozzle location
Beam angle
• Beam angle is the width of the cone
where the energy density is half of
the peak energy density.
• The peak energy density is directly
in front of and in line with the
antenna.
• There is a signal transmitted out-
side the beam angle, therefore false
targets may be detected.
Emission cone
• Keep emission cone free of
interference from ladders, pipes, I-
beams or filling streams.
• Avoid central locations on tall,
narrow vessels.
• LR560 uses circular polarization.
Rotation of device is not required to
optimize signal.
Environment
• Provide easy access for
viewing the display and
programming via the
handheld programmer.
• Provide an environment
suitable for the ambient
temperature rating.
Notes:
• Correct location is key to a successful application.
• Avoid reflective interference from vessel walls and obstructions by following the
guidelines below.
Notes:
• For details on avoiding false echoes, see
Auto False Echo Suppression (2.4.8.1.) on
page 118.
emission
cone
min. 1 m (39")
4°
ambient temperature
–40 °C to 80 °C
(–40 °F to 176 °F)
process temperature:
–40 to +100 °C (–40 to +212 °F) or
–40 to +200 °C (–40 to +392 °F) depending on the version