UK Operating instructions (Ex protection related part) for
Contents
1. not be exceeded Max operating voltage 6 V UK Max operating current 10 mA Max Power 20 mW e Wiring Core colours WH white RD red e Avoid electrostatic charging on units and cables e To avoid electrostatic charging clean the sensor with a damp cloth only e Do not mount the sensor in the dust flow e Avoid dust deposits on the sensors In any case the user must check whether the supplied fixing accessories are appropriate for the corresponding application with respect to the ATEX requirements The supplied fixing accessories are not to be considered as a recommendation by the manufacturer for ATEX conform installation e Steps must be taken to ensure the equalisation of potential of metal parts housing and fixing accessories e Note on the installation in dust atmosphere according to classification II 3D The end of the cable must be protected against the ingress of dust or be outside the hazardous area Special conditions for safe operation e The cable must not be subject to tensile strain of more than 50 newton e Between the cable and the metal housing of the sensor no tensile strain of more than 50 newton must be applied e Units or sensors without direct earthing must be installed in an earthed metallic system ensuring a permanent electrical connection and so indirectly earthed Maintenance Repair The unit must not be modified nor can it be repaired In case of a fault please contact the manufac2. 05 2010 704715 01 C E ifm electronic Operating instructions Ex protection related part for temperature sensors TS502A TS522A according to EU directive 94 9 EC annex VIII ATEX group Il equipment category 3D 3G Remarks for safe use in hazardous areas Functions and features This sensor is used for temperature measurement and is intended for industrial plants The technical data on the type label must be absolutely adhered to The documentation must be observed For applications in which the failure of the sensor may lead to a risk for persons corresponding safety measures must be provided e Use in hazardous areas according to the classification group Il category 3D apparatus for dust atmosphere The requirements of the standards EN 61241 1 and EN 61241 0 are met e Marking x II 3D Ex tD A22 IP67 T 135 C X e Use in hazardous areas according to the classification 13G group Il category 3G apparatus for gas atmosphere The requirements of the standards EN 60079 0 and EN 60079 15 are met e Marking Ex II 3G Ex nA T4 X e Permissible operating temperature of the application proper usage 20 C 115 C Installation Set up The units sensors must only be installed connected and set up by qualified staff The qualified staff must have knowledge of protection classes regulations and provisions for apparatus in hazardous areas Check whether the classification see Marking abo
3. turer The data sheets and the EC declaration of conformity are available from the manufacturer on request
4. ve and marking on the unit is suitable for the application There must be no explosive atmosphere present during any task such as transport storage mounting electrical connection commissioning maintenance or repair Installation remarks Installation The temperature sensors must be tightly firmly and safely connected to the measuring application according to the current state of technology e Adhere to the respective national regulations and provisions as well as the relevant instal lation regulations e The sensor must be firmly and safely connected to its evaluation electronics to ensure a permanent electrical connection The cable must be effectively protected against damage Abrasion or sharp edged objects might damage the cable This can lead to failure of the unit or make ATEX conform operati on impossible The cable is intended for fixed laying Minimum bending radius 15 x cable diameter The cable must not be bent or folded at the outlet of the metal sensor housing Earthing of the metal sensing head is made via the metal machine chassis which is con nected to the sensor e The sensor must be installed so that no twisting forces can act on the cable or sensor e The connection cable of the sensor must only be connected to power supplies for passive resistance sensors intended and approved for the operation of the installation according to DIN EN 60751 e The electrical characteristic values of the unit must
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