Datasheet

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
Inductive proximity switches
NCN4-12GM35-N0
PEPPERL+FUCHS GmbH www.pepperl-fuchs.com
5
2006-05-03 – 181100_ENG.xml
ATEX 3D
Instruction Manual electrical apparatus for hazardous areas
Device category 3D for use in hazardous areas with non-conducting combustible dust
Directive conformity 94/9/EG
Standard conformity EN 50281-1-1
Protection via housing
Use is restricted to the following stated conditions
CE symbol
0102
Ex-identification ¬ II 3D IP67 T 109 °C (382 K) X
General The apparatus has to be operated according to the appropriate data in the data
sheet and in this instruction manual.
The data stated in the data sheet are restricted by this operating instruction! The
special conditions must be adhered to!
Installation, Comissioning Laws and/or regulations and standards governing the use or intended usage
goal must be observed.
Maintenance No changes can be made to apparatus, which are operated in hazardous areas.
Repairs to these apparatus are not possible.
Special conditions
Minimum series resistance R
V
A minimum series resistance RV is to be provided between the power supply
voltage and the proximity switch in accordance with the following list. This can
also be assured by using a switch amplifier.
Maximum operating voltage UBmax The maximum permissible operating voltage UBmax must be restricted to the
values given in the following list. Tolerances are not permitted.
Maximum heating (Temperature rise) Values can be obtained from the following list, depending on the max. operating
voltage Ub max and the minimum series resistance Rv.
at U
Bmax
=9 V, R
V
=562 Ω 9 °C (282 K)
using an amplifier in accordance with EN 60947-5-6 9 °C (282 K)
Protection from mechanical danger The sensor must not be mechanically damaged.
Electrostatic charging Electrostatic charges must be avoided on the mechanical housing components.
Dangerous electrostatic charges on the mechanical housing components can
be avoided by incorporating these in the equipotential bonding.
Protection of the connection cable The connection cable must be prevented from being subjected to tension and
torsional loading.