Maintenance And Cleaning - Festo SPAW Manual De Instrucciones

6. Commissioning, operation / 7. Maintenance and cleaning
Delay times (0 ... 50 s)
This makes it possible to filter out unwanted pressure peaks of a short duration or
a high frequency (damping).The pressure must be present for at least a certain
pre-set time for the output to switch on. The output does not immediately change
EN
its status when it reaches the switching event (SP), but rather only after the
pre-set delay time (DS).
If the switching event is no longer present after the delay time, the switch output
does not change. The output only switches back when the system pressure has
fallen down to the reset point (PR) and stays at or below the reset point (RP) for at
least the pre-set delay time (DR).
If the switching event is no longer present after the delay time, the switch output
does not change.
6.8 Accessories
Accessories can be found online at www.festo.com/catalogue.

7. Maintenance and cleaning

7.1 Maintenance
This instrument is maitenance-free.
7.2 Cleaning
CAUTION!
Before cleaning, correctly disconnect the instrument from the pressure supply, switch it off and
■
disconnect it from the mains.
Clean the instrument with a moist cloth.
■
Electrical connections must not come into contact with moisture.
■
Wash or clean the dismounted instrument before returning it in order to protect personnel and the
■
environment from exposure to residual media.
Residual media in dismounted instruments can result in a risk to persons, the environment and
■
equipment.
Take sufficient precautionary measures.
■
Do not use any pointed or hard objects for cleaning, as they may damage the diaphragm of the process
■
connection.
18
Fig.: Delay times
Pressure sensor SPAW