Datasheet

Inductive proximity switches
NCN4-12GM35-N0-V1
2
Subject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in Germany
Pepperl+Fuchs Group • Tel.: Germany [phone] • USA [phone] • Singapore [phone] • Internet http://www.pepperl-fuchs.com
Instruction Manual electrical apparatus for hazardous areas
Device category 1G BR for use in hazardous areas with gas, vapour and mist
Directive conformity 94/9/EG
Standard conformity EN 50014:1997; EN 50020:1994; EN 50284:1999
Ignition protection "Intrinsic safety"
Use is restricted to the following stated conditions
CE symbol
0102
Ex-identification ¬ II 1G EEx ia IIC T6
EC-Type Examination Certificate PTB 00 ATEX 2048 X
Assigned type NCN4-12GM...-N0...
Effective internal capacitance C
i
≤ 95 nF ; a cable length of 10 m is considered.
Effective internal inductance L
i
≤ 100 µH ; a cable length of 10 m is considered.
General The apparatus has to be operated according to the appropriate data in the data sheet and in this
instruction manual.
The EU prototype test certificate must be observed. The special conditions must be adhered to!
Highest permissible ambient temperature The temperature ranges, according to temperature class, are given in the EU prototype test certificate.
Note: Use the temperature table for category 1 !!! The 20 % reduction in accordance with EN 1127-
1:1997 has already been accounted for in the temperature table for category 1.
Installation, Comissioning Laws and/or regulations and standards governing the use or intended usage goal must be observed.
The intrinsic safety is only assured in connection with an appropriate related apparatus and according
to the proof of intrinsic safety.
The associated apparatus must satisfy the requirements of category ia.
Due to the possible danger of ignition, which can arise due to faults and/or transient currents in the
equipotential bonding system, galvanic isolation of the power supply and signal circuit is preferable.
Associated apparatus without electrical isolation must only be used if the appropriate requirements of
IEC 60079-14 are met.
Maintenance No changes can be made to apparatus, which are operated in hazardous areas.
Repairs to these apparatus are not possible.
Special conditions
Protection from mechanical danger The sensor must not be mechanically damaged.
When used in the temperature range below -20°C the sensor should be protected from knocks by the
provision of an additional housing.
Electrostatic charging Electrostatic charges must be avoided on the mechanical housing components. Dangerous electro-
static charges on the mechanical housing components can be avoided by incorporating these in the
equipotential bonding.