Electromagnetic Compatibility - WIKA 831 Mode D'emploi

6. Commissioning, operation
The permissible limits of Ui, Ii and Pi for the intrinsically safe supply circuits
depend on the sensor type. They can be taken from the corresponding EC-type
examination certificates. (The sensor type is stated on the connection label of
the pressure or temperature measuring instrument.)
Suitable switching amplifiers are e.g.:
Circuit Sensor type Model designation
(s. Ex certificate)
Model 1 standard
standard
Model 2 standard
standard
SN-sensors
SN-sensors

Electromagnetic compatibility

EMC to EN 60947-5-2.
The instruments are to be protected against strong electromagnetic fields.
Adjusting the set pointers
The setting of the set points is achieved using the adjustment lock in the win-
dow with the aid of the adjustment key (part of the scope of delivery; found in
standard instruments on the side of the terminal box).
Set pointer
Adjustment lock
The set pointers for the limit switches are freely adjustable over the full scale
range. For reasons of switching accuracy and long life of the mechanical
measuring systems, the switch points should be between 10 % and 90 % of the
measuring span.
WIKA operating instructions inductive contact model 831
Fa. Pepperl & Fuchs certificate
KFD2-SR2-Ex1
KFD2-SR2 Ex2
KFA6-SR2-Ex1
KFA6-SR2-Ex2
KFD2-SH-Ex1
KHA6-SH-Ex1
EC-type examination WIKA
PTB 00 ATEX 2080
PTB 00 ATEX 2080
PTB 00 ATEX 2081
PTB 00 ATEX 2081
PTB 00 ATEX 2042
PTB 00 ATEX 2043
removable
adjustment key
GB
Model
904.31
904.32
904.28
904.29
904.33
904.30
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