Siemens SM 331 Información Del Producto página 10

English A5E50802076-AB
Note
Modules with the certification Ex ec [ib Gb] [ib IIIC Db] IIC T4 Gc can be used in SIMATIC
S7-300 / ET 200M automation systems belonging to equipment category 3. Intrinsically safe
electrical equipment for zones 1, 2 und zones 21, 22 can be connected.
Note
The product is designed for use in explosion-protected environments. The applicable rules and
regulations as well as the information and safety notices in the product manual must be followed.
Maintenance
The analog module is maintenance-free. In the event of need for repair, the module must be sent to the
place of manufacture. No repairs may be carried out anywhere else.
Installation
• The analog module must be installed outside the hazardous area in a suitable housing that
complies with the IP 20 degree of protection in accordance with EN 60529.
• The equipment shall only be used in an area of no more than pollution degree 2, as defined in
IEC 60664-1.The equipment shall be installed in a suitable enclosure that provides a degree of
protection not less than IP54 in accordance with IEC 60079-7.
• If a temperature of > 70 °C is reached in the cable or at the cable entry of this housing under
operating conditions, or if a temperature of > 80 °C can be reached at the junction of the
conductors under operating conditions, the temperature-related properties of the cables must
correspond to the temperatures actually measured.
Commissioning
• After the analog module is installed, all relevant separations, connecting leads and connections
must conform to the conditions set out in Section 6.4 of EN 60079-11.
During installation the cable compartment (6ES7393-4AA00-0AA0) must be used.
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