Operating instructions (Safety-related part ATEX) Capacitive
Contents
1. CE 706139 00 01 2012 ifm electronic Operating instructions Safety related part ATEX Capacitive NAMUR sensors KX 2015 N NI Remarks for safe use in hazardous areas Functions and features e Use in hazardous areas according to the classification group Il category 1G apparatus for gas atmosphere The standards IEC 60079 0 2011 IEC 60079 11 2011 IEC 60079 26 2006 Corr 2009 are applied e Use in hazardous areas according to the classification group Il category 1D apparatus for dust atmosphere The standards IEC 60079 0 2011 IEC 60079 11 2011 are applied e EC Type Test Certificate DMT 01 ATEX E020 e Marking x Il 1G Ex ia IIB T6 Ga Ta 20 C to 60 C x Il 1D Ex ia IlIiC T90 C Da Installation Set up The units 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 above and marking on the unit is suitable for the application e Connection only to intrinsically safe switching amplifiers which are approved with the EC type test certificate and do not exceed the following maximum values Ui 15 V li 50 mA Pi 120 mW e Permissible operating temperature of the application referred to the maximum power which can be supplied 20 60 C e Maximum effective internal inductance Li and capacit2. ance Ci Li 1 uH Ci 375 nF The values apply to potted cables which are 2 m long The following values are added for the cable unit versions KX with potted cable gt 2m 0 5 uH Li 160 pF Ci per metre of potted cable Installation remarks Mounting e Adhere to the relevant national regulations and provisions e Avoid electrostatic charging on plastic units and cables e Protect unit and cable against destruction e The housing of the capacitive sensor is to be connected to potential via the respective wire in the connection cable Installation instructions KX 2015 N NI for zone 0 zone 1 gas e The unit is not suitable for installation in walls which separate zone 0 from zone 1 Installation instructions KX 2015 N NI for zone 20 zone 21 zone 22 dust e When the sensor is mounted in the tank wall or the cable passes through the tank wall the UK point of transition A between zone 20 and zone 21 must be resistant to dust ingress The regulations of the standard EN 61241 14 concerning for example exposure to dust and temperatures must be complied with 20 zone 20 21 zone 21 A point of transition between zone 20 and zone 21 Maintenance Repair The unit must not be modified nor can it be repaired In case of a fault please contact the manufacturer lf needed you can obtain the data sheet EC type test certificate or EC declaration of conformity from the manufacturer
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