Operation

Closed Precharge Scaling Value

Dispense Application Direction

Dispense Application Direction

Dispense Application Direction

 

 

 

 

 

 

Value Too Low

Ideal Value

Value Too High

-Controls outlet pressure based on desired command while valves are closed.

-Ideal value is typically less than 100% due to the minimal pressure losses within the system when fluid is not flowing.

Opening Precharge Scaling Value

Dispense Application Direction

Dispense Application Direction

Dispense Application Direction

 

 

 

 

 

 

Value Too Low

Ideal Value

Value Too High

-Provides a boost upon valve opening to accelerate material. -Ideal value is typically greater than 100%.

Opening Precharge Duration Value

Dispense Application Direction

Dispense Application Direction

Dispense Application Direction

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Value Too Low

Ideal Value

Value Too High

-The duration for which the valve opening scaling is application before the command is no longer scaled.

Regulator On Delay Value

Dispense Application Direction

Dispense Application Direction

Dispense Application Direction

 

 

 

 

 

 

Value Too Low

Ideal Value

Value Too High

-Controls timing of transition from valve “closed” precharge to valve “opening” precharge and regular dispense. -This delay should approximate the time it takes a dispense to open.

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3A2098H

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Image 48
Graco 3A2098H important safety instructions Closed Precharge Scaling Value