Basic Safety Information - Siemens SITRANS LR250 Kompaktbetriebsanleitung

3 Description
3.1 SITRANS LR250 overview
WARNING
Loss of protection
Danger to personnel, system and environment can result from improper use of the device.
SITRANS LR250 is to be used only in the manner outlined in this manual, otherwise protection provided by the device
•
may be impaired.
SITRANS LR250 is a 2-wire 25 GHz pulse radar level transmitter for continuous monitoring of liquids and slurries in storage
vessels including high pressure and high temperature, to a range of 20 meters (66 feet). It is ideal for small vessels, material
such as chemicals, food, beverages, solvents (including those of corrosive or aggressive nature), and low dielectric media.
The device consists of an electronic circuit coupled to an antenna and either a threaded or flange type process connection.
This device supports Foundation Fieldbus (FF) communication protocol. Signals are processed using Process Intelligence which
has been field proven in over 1,000,000 applications worldwide (ultrasonic and radar). This device can be configured as an FF
(H1) Link Master.
4 Installing/mounting
4.1

Basic safety information

Note
Material compatibility
Siemens can provide you with support concerning selection of sensor components wetted by process media. However, you
are responsible for the selection of components. Siemens accepts no liability for faults or failures resulting from incompatible
materials.
WARNING
Unsuitable connecting parts
Danger of injury or poisoning.
In case of improper mounting hot, toxic and corrosive process media could be released at the connections.
Ensure that connecting parts (such as flange gaskets and bolts) are suitable for connection and process media.
•
WARNING
Exceeded maximum ambient or process media temperature
Danger of explosion in hazardous areas.
Device damage.
Make sure that the maximum permissible ambient and process media temperatures of the device are not exceeded.
•
WARNING
Open cable inlet or incorrect cable gland
Danger of explosion in hazardous areas.
Close the cable inlets for the electrical connections. Only use cable glands or plugs which are approved for the relevant
•
type of protection.
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SITRANS LR250 (FOUNDATION FIELDBUS)
A5E33472700-AA, 08/2014