Operating instructions (Safety-related part ATEX and IECEx
Contents
1. Ce 02 2014 80001940 00 ifm electronic Operating instructions Safety related part ATEX and IECEx Inductive NAMUR sensors NN504A NN505A Remarks for safe use in hazardous areas Functions and features Use in hazardous areas according to the classification Il 1G 2G Group Il category 1G 2G apparatus for gas atmosphere The requirements of the standards IEC 60079 0 2011 Corr 2012 IEC 60079 11 2011 and IEC 60079 26 2006 Corr 2009 are met Use in hazardous areas according to the classification group Il category 1D apparatus for dust atmosphere The requirements of the standards IEC 60079 0 2011 Corr 2012 IEC 60079 11 2011 and IEC 60079 26 2006 Corr 2009 are met EC Type Test Certificate BVS 14 ATEX E 005 X IECEx type examination certificate IECEx BVS 14 0005X e Marking x Il 1G Ex ia IIB T4 Ga Ta 25 70 C x Il 2G Ex ia IIC T4 Gb Ta 25 70 C x I 1D Ex ia IIIB T135 C Da Ta 25 70 C Installation set up The units must only be installed connected and set up by qualified staff The qualified staff must have knowledge of types of protection regulations and provisions for apparatus in hazardous areas Check whether the classification see Marking above and marking on the unit is suitable for the application 2 Sensor connection Only to intrinsically safe certified circuits or evaluation amplifiers which do not exceed the following maximum values2. E12209 from ifm electronic the housing reaches protection rating IP67 in case of correct installation This combination is tested with regard to electrostatics If you use different cable glands or protective caps please pay attention to the electrostatics of this combination The M12 socket mounted to the NN505A is only for connection with the actuator output Only use cables with an insulation resistance of at least 500 V between the separate intrinsically safe circuits The units must not be installed in the partition between different zones 1 Avoid electrostatic charging on housings and cables Maintenance repair The unit must not be modified nor can it be repaired In case of a fault please contact the manufacturer Data sheets EC declaration of conformity and EC type examination certificates are available from the manufacturer on request To view the IECEx certificate online please visit www iecex com
3. of the units Ui 15 V li 50 mA Pi 120 mW Actuator wiring Only to intrinsically safe certified circuits of solenoid valves that do not exceed the following maximum values of the units Also observe the technical data sheet Ui 28 V li 250 mA Pi 750 mW up to 40 C Pi 650 mW up to 70 C For use in gas atmosphere Group II the following values are admissible and may not be exceeded Ui 28 V Pi 1 1 W e NN504A and NNSODSA Terminal block wiring Solenoid valve Solenoid valve Solenoid valve Solenoid valve connection Ex i connection Ex i connection connection IN IN OUT OUT e NN505A Wiring diagram M12 connector Solenoid valve Solenoid valve connection connection OUT brown OUT white e Maximum effective internal inductance Li and capacitance C per sensor Anions Internal inductance L Internal capacitance C l total in uH total in nF NNSOMA 80 NNSOSA J 380 Installation remarks mounting Adhere to the relevant national regulations and provisions The relevant installation regulations must be adhered to Protect the units efficiently against damage To avoid electrostatic charging steps must be taken to ensure the equalisation of potential of metal parts plug housing fixing elements etc Please use cable glands or screw plugs that guarantee at least housing protection rating IP20 for connection Using cable gland E12208 and protective cap
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