Burkert Type 8681 Bedienungsanleitung PDF herunterladen (Seite 30)

Pneumatic Installation

Settings of the Flow-Rate or the Control Speed with the Help of the Flow Restriction Screws:

Open the housing observing the notes contained in chapter

→ 8. Opening and Closing the Housing.

For proper setting, it is advisable to turn the two ﬂow restriction screws initially into the minimum ﬂow-rate

→

position. The process valve will then initially move slowly so that you have more time to ﬁnd the optimum

setting during a switching operation.

Minimizing the ﬂow-rate: Turn clockwise

Maximizing the ﬂow-rate: Turn counterclockwise

Observing the safety guidelines, activate the valve location to be set (either using the system control or the

→

manual controls).

Turn the ﬂow restriction screw, "P", counterclockwise to set the desired ﬂow-rate and thus the opening time for →

the process valve. (Tool: ﬂat-blade screwdriver, width ≤ 3 mm). (Tool: ﬂat-blade screwdriver, width ≤ 3 mm).

Activate valve location. →

Turn the ﬂow restriction screw, "R", counterclockwise to set the desired ﬂow-rate and thus the closing time for →

the process valve.

Flow restriction screw

Exhaust R

Flow restriction screw

Intake P

Fig. 9: Flow restriction screws of the solenoid valves

NOTE!

Makes sure that all manual controls have been deactivated (manual lever all the way left, as pictured) after the •

setting work has been completed!

Close the housing observing the notes contained in chapter

→ 8. Opening and Closing the Housing.

If no system status is available during setting, readjust the system under system operation conditions if

necessary.

Observe the safety guidelines during this!

Hand lever of the

mechanical manual

actuation facility

english

Control Head Type 8681

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Burkert Type 8681 Bedienungsanleitung Seite 30