Siemens SITRANS LR250 Kompaktbetriebsanleitung Seite 11

WARNING
Incorrect conduit system
Danger of explosion in hazardous areas as result of open cable inlet or incorrect conduit system.
In the case of a conduit system, mount a spark barrier at a defined distance from the device input. Observe national
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regulations and the requirements stated in the relevant approvals.
4.1.1 Pressure applications
DANGER
Pressure applications
Danger to personnel, system and environment will result from improper disassembly.
Never attempt to loosen, remove, or disassemble process connection while vessel contents are under pressure.
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WARNING
Pressure applications
Danger to personnel, system and environment can result from improper installation.
Improper installation may result in loss of process pressure.
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WARNING
Exceeded maximum permissible operating pressure
Danger of injury or poisoning.
The maximum permissible operating pressure depends on the device version. The device can be damaged if the operating
pressure is exceeded. Hot, toxic and corrosive process media could be released.
Make sure that the device is suitable for the maximum permissible operating pressure of your system.
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Note
The process connection tag shall remain with the process pressure boundary assembly. (The process pressure boundary
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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). In the event the
device package is replaced, the process connection tag shall be transferred to the replacement unit.
SITRANS LR250 units are hydrostatically tested, meeting or exceeding the requirement of the ASME Boiler and Pressure
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Vessel Code and the European Pressure Equipment Directive.
4.1.1.1 Pressure Equipment Directive, PED, 97/23/EC
Siemens Level Transmitters with flanged, threaded, or sanitary clamp type process mounts have no pressure-bearing housing of
their own and, therefore, do not come under the Pressure Equipment Directive as pressure or safety accessories (see EU
Commission Guideline 1/8 and 1/20).
SITRANS LR250 (FOUNDATION FIELDBUS)
A5E33472700-AA, 08/2014
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