4
WIKA Operating instructions/Betriebsanleitung/Mode d'emploi SL-1
2488791.09 EN/DE/FR 11/2021
3. Signs, symbols and abbreviations / 4. Function / 5. For your safety
EN
3. Signs, symbols and abbreviations
4. Function
2-wire Two connection lines are intended for the voltage supply.
The supply current is the measurement signal.
3-wire Two connection lines are intended for the voltage supply.
One connection line is intended for the measurement signal.
The pressure prevailing within the application is transformed into a standardised electrical signal
through the deflection of the diaphragm, which acts on the sensor element with the power supply
fed to the transmitter. This electric signal changes in proportion to the pressure and can be evalu-
ated correspondingly.
Potential danger of life or of
severe injuries.
Notice, important informa-
tion, malfunction.
The product complies with
the applicable European
directives.
Potential danger of burns
due to hot surfaces.
5. For your safety
Select the appropriate pressure transmitter with regard to scale range, perfor-
mance and specific measurement conditions prior to installing and starting the
instrument.
Observe the relevant national regulations and observe the applicable stan-
dards and directives for special applications.
If you do not observe the appropriate regulations, serious injuries and/or
damage can occur!
Please note that the pressure measuring instrument is suitable for clean, dry, non-aggressive
gases only.
Open pressure connections only after the system is without pressure!
!
Caution
Warning
!
Warning