Installation; Mounting Location - Siemens sitrans LR 400 Instruction Manual

Installation

Notes:
• The SITRANS LR 400 is rated for Type 4X/NEMA 4X, Type 6/NEMA 6, IP
67. Follow all installation and operating instructions to meet the
requirements of this type of protection. Use only approved, suitable
sized hubs for watertight applications.
• Observe all maximum permissible ambient and process temperatures.
Refer to Appendix III (Ambient/Operating Temperature Specification).
Provide a warning sign and/or touch guard if the surface of the measuring
instrument can become hotter than 70°C in use.
WARNINGS:
• This product is designated as a Pressure Accessory per directive
97/23/EC and is not intended for use as a safety device.
• Improper installation may result in loss of process pressure.

Mounting Location

• Do not mount in direct sunlight without the use of a sun shield. Refer to Appendix III
(Ambient/Operating Temperature Specification) on page 78.
• Mount the unit more than 1 m away from the vessel walls, pipes and other
assemblies as well as the filling stream, because all these influences will become
noticeable as reflective interference. Align the antenna so that the radar cone
intersects the surface of the measuring medium as vertically as possible
• When mounting the SITRANS LR 400 in outdoor applications, always set Parameter
5.2 Customer Code to prevent unwanted resetting of parameters.
WARNING: For vessels with conical or parabolic tops, avoid mounting
the unit at the center.
centre, giving false readings.
Parabolic or Conical
P a r a b o l i c
is preferred
location
Page 16
The concavity of the top can focus echoes into the
Flat
l F t a
is acceptable
location
SITRANS LR 400 – INSTRUCTION MANUAL
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