C6097 · Edition 01.19 14
Project planning information
4.2 Ports
4.2.1 CE certified pressure switches
Rp ¼"
Rp
1
/
8
"
Rp ¼"
Rp
1
/
8
"
2
3
4
1
Positive ressure Connect Seal Free*
C6097
1 2 3 or 4
2 1 3 or 4
Negative ressure Connect Seal Free*
C6097
4 3 1 or 2
3 4 1 or 2
*
It is recommended that the port which is best protected from water
and dirt be left open.
Differential
pressure
Connect
Seal
for the higher
absolute
pressure
for the lower
absolute
pressure
C6097 1 or 2 3 or 4
Seal ports that
are not in use
Ports 3 and 4 are connected to the micro switch cham-
ber.
Pipes carrying gas must not be connected to port 3
or 4!
The port that is best protected against soiling (dust/hu-
midity) is to be left open for ventilation (positive pres-
sure measurement) to the atmosphere.