Wika PGS43.160 Bedienungsanleitung PDF herunterladen (Seite 10)

2080242.03 12/2009 GB/D/F/E

WIKA Operating instructions pressure gauges Model 4 with 831 per ATEX

5. Switch contacts

EC-type examination certificates

Standard version Model 831.XX

PTB 99 ATEX 2219 X (Appendix 2) and ZELM 03 ATEX 0128 X (Appendix 4)

Depending on the number of switches and on the case diameter either

Model SJ2-N... or Model SJ3.5-...-N... is used.

Safety pattern version Models 831.XX - SN or - S1N

PTB 00 ATEX 2049 X (Appendix 3) and ZELM 03 ATEX 0128 X (Appendix 4)

Depending on the number of switches and on the case diameter either

Models SJ 2-SN..., SJ 2-S1N..., SJ 3.5-SN.. or SJ 3.5-S1N... are used.

The built-in sensor type is stated on the product label of the pressure gauge.

Wiring details

The electrical connections must only be made by qualified skilled personnel

Connection of the switches via screw terminals in the terminal box

Conductor cross section max. 1.5 mm

The terminal assignment is stated on the product label of the pressure gauge

The gauges must be connected to the equipotential bonding of the plant

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 plate of

the pressure gauge.)

Suitable switch amplifiers are e.g.:



Electromagnetic compatibility

EMC to EN 60 947-5-2.

The instruments are to be protected against strong electromagnetic fields.

Circuit Sensor type Model designation EC-type exami- WIKA-

(s. Ex-certific.) Fa. Pepperl & Fuchs nation certificate Model

Model 1 standard KFD2-SR2-Ex1 PTB 00 ATEX 2080 904.31

standard KFD2-SR2 Ex2 PTB 00 ATEX 2080 904.32

Model 2 standard KFA6-SR2-Ex1 PTB 00 ATEX 2081 904.28

standard KFA6-SR2-Ex2 PTB 00 ATEX 2081 904.29

SN-sensors KFD2-SH-Ex1 PTB 00 ATEX 2042 904.33

SN-sensors KHA6-SH-Ex1 PTB 00 ATEX 2043 904.30

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Wika PGS43.160 Bedienungsanleitung Seite 10