Operating
Instructions
PHT
24
© SICK AG • Germany • All rights reserved
8013362/1DQY/2021/10/12
3. Signs, symbols and abbreviations / 4. Function
3. Abbreviations, signs and symbols
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 standardized 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 information,
malfunction.
The product complies with
the applicable European
directives.
Potential danger of life or of
severe injuries due to catapul-
ting parts.
Potential danger of burns due
to hot surfaces.
Warning
Caution
Warning
