8
6 Electrical connection
The unit must be connected by a qualified electrician.
The national and international regulations for the installation of electrical
equipment must be adhered to.
Voltage supply to EN50178, SELV, PELV.
►
Disconnect power.
►
Connect the unit as follows:
2 wire connection
3 wire connection
Core colours of ifm sockets:
1 = BN (brown), 2 = WH (white), 3 = BU (blue), 4 = BK (black)
7 Operation
After power on of the supply voltage the unit is in the Run mode (= normal opera-
tion). It carries out its measurement and evaluation functions and provides an
analogue signal proportional to the system pressure.
7.1 Cleaning of the filter cover
If viscous and residues producing
media clog the filter cover of the sen-
sor (and thus reduce the measuring
accuracy slightly), you can clean it.
► Unscrew the filter cover (B) (use a
pair of pliers with plastic-covered
jaws for this).
►
Clean the cover thoroughly.
The vent (A) should only be cleaned by skilled personnel and with utmost care.
Possible medium residues must not be compressed and pressed into the vent.
This could clog the filter system and reduce the measuring accuracy of the
sensor.