Siemens SITRANS LR250 Kompaktbetriebsanleitung Seite 25

5.4 Instructions specific to hazardous area installations
5.4.1 (Reference European ATEX Directive 94/9/EC, Annex II, 1/0/6)
The following instructions apply to equipment covered by certificate number SIRA 06ATEX2353X and 09ATEX4354X:
1. For use and assembly, refer to the main instructions.
2. The equipment is certified for use as Category 1GD equipment per SIRA 06ATEX2353X, and Category 3G equipment per
SIRA 09ATEX4354X.
3. The equipment may be used with flammable gases and vapors with apparatus group IIC, IIB and IIA and temperature
classes T1, T2, T3 and T4.
4. The equipment has a degree of ingress protection of IP67 and a temperature class of T100
flammable dusts.
5. The equipment is certified for use in an ambient temperature range of –40
6. The equipment has not been assessed as a safety related device (as referred to by Directive 94/9/EC Annex II, clause 1.5).
7. Installation and inspection of this equipment shall be carried out by suitably trained personnel in accordance with the
applicable code of practice (EN 60079-14 and EN 60079-17 in Europe).
8. The equipment is non-repairable.
9. The certificate numbers have an 'X' suffix, which indicates that special conditions for safe use apply. Those installing or
inspecting this equipment must have access to the certificates.
10. If the equipment is likely to come into contact with aggressive substances, then it is the responsibility of the user to take
suitable precautions that prevent it from being adversely affected, thus ensuring that the type of protection is not
compromised.
– Aggressive substances: e.g. acidic liquids or gases that may attack metals, or solvents that may affect polymeric
materials.
– Suitable precautions: e.g. establishing from the material's data sheet that it is resistant to specific chemicals.
Special conditions for safe use (denoted by X after the certificate number)
● Parts of the enclosure may be non-conducting and may generate an ignition-capable level of electrostatic charge under
certain extreme conditions. The user should ensure that the equipment is not installed in a location where it may be
subjected to external conditions (such as high-pressure steam), which might cause a build-up of electrostatic charge on non-
conducting surfaces.
● Aluminium, magnesium, titanium or zirconium may be used at the accessible surface of the equipment. In the event of rare
incidents, ignition sources due to impact and friction sparks could occur. This shall be considered when the SITRANS LR250
FF is being installed in locations that specifically require Equipment Protection level Ga or Da.
● The equipment shall be infallibly bonded according to the relevant code of practice.
● The end use must ensure that the explosion protection and ingress protection of IP64 is maintained at each entry to the
enclosure by use of a blanking element or cable entry device that meets the requirements of the protection concepts type 'n'
or increased safety 'e' or flameproof 'd'.
SITRANS LR250 (FOUNDATION FIELDBUS)
A5E33472700-AA, 08/2014
C and may be used with
o
C to +80 C.
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