SIEMENS SIPART PS2 Valve Positioner

[Chado613]

Does anyone have much experience with these?

I have an issue where the valve needs to be much more precise then it is now. (Within tenths of a %)

I have read through the manual but it’s not clear to me if this can be accomplished.

Any help here would be much obliged

 

[KalleOlsen]

I've used these some 12 years ago, and they were OK for that setting. You could eventually ask the guys here.

K

 

[KalleOlsen]

Look at page 2 of this leaflet.
It seems to be a resolution of 0.1%. Have you set the dead zone to minimum?
K

 

[Chado613]

The dead zone is set to "Auto"

Im not sure I quite understand how this parameter works? Would setting it to .1% make the dead band smaller?

 

[KalleOlsen]

Haven't you tried it? ???

The better is to have the dead zone as big as possible to minimize the valve and gear wear. If your application requires max resolution, force the zone to minimum.

K

 

[Chado613]

Ok I will try this.

Thank you very much