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VPEV-1/8-M12
2
Method of operation and application
The mechanical vacuum switch type VPEV- 1/ 8-... opens or closes an electric cir-
cuit when a certain vacuum is reached at the vacuum connection (changeover
switch). When the vacuum rises, it presses a diaphragm against a spring. The
deflection depends on the extent to which the tension of the spring is set. When
the maximum limit of deflection of the diaphragm is reached, a microswitch is
actuated. This switch opens or closes the electrical contacts. The switching point
and the switching difference (hysteresis) can be set independently of each other.
The VPEV- 1/ 8-... is designed for generating monitoring signals for controllers on
vacuum-operated systems.
3
Conditions of use
Please note
Malfunctioning can occur as a result of incorrect handling.
S Make sure that the instructions in this chapter are always observed.
The product can then be used safely and reliably.
S
Compare the maximum values specified in these instructions with your actual
application (e.g. for vacuum, forces, torques, masses, speeds, temperatures).
S
Make sue that there is a supply of cor-
rectly prepared compressed air.
S
Take into account the ambient conditions
at the location site.
Festo 0007NH– English

Fig. 2

Fig. 3
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