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Pressure Switch (Pressostato)

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lukin1977

lukin1977

Mechanical
Joined
Jan 19, 2009
Messages
397
Location
PY
We have an old hydraulic press. Please explain me how the pressure switch show on the pictures works
Brand: Fantini Cosmi
Type: B35G

It has 3 electrical contacts: C - NC and NO

I know that the contact switches once the pressure reach the set value, but what is the function of the red knob (A B C D F G)?

Thanks in advance

20171030_114551_xtxzs7.jpg


20171030_114556_wmh6m6.jpg


20171030_114602_rxtqcp.jpg


20171030_114609_padtw3.jpg
 
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That is the differential setting. It sets the difference between when the unit switches on and when it switches off. It is used to prevent short-cycling, where a compressor or pump would constantly be switched on and off every few seconds.
 
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Got it!
Thanks Compositepro
 
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