Sterling 882.00249.00 Manual Do Utilizador

 

 

2–Pump 12-Station Controllers 

Chapter 3:  Installation 

31 

BLBK AFTER 12 LOADS 

 SETTING FOR PUMP 1 

 

  IDLE DELAY TIME? 

       NO/YES 

 

Next, set the Pulse Off time value. This is the duration that the blowback solenoid is turned 
OFF. 

•  Using the number keys, enter the new Off Time setting, then press ENTER to save the 

new value. 

To save the current Off Time setting and move to the next menu item: 

•  Press ENTER without entering a value. 

The following screen displays. 

 
 
 
 
 
 

 
 

The last blowback setting tells the controller how many loads on stations assigned to the 
selected pump must be completed before starting a blowback cycle. 

After you define this setting, the controller returns to the Pump Settings menu screen. 

After a station load is complete, the controller looks for a new demand on the system. If all 
stations are satisfied with material, the controller enters IDLE (No Activity) state. During this 
state, the atmospheric vent valve is open and vacuum vents. During IDLE (No Activity) state 
time, the controller monitors inputs looking for a demand on the system. Eventually, if no 
demand is on the system, the controller shuts down the pump(s) and waits for a demand 
signal. This process saves energy and prolongs the life of the vacuum pump. 

The Idle time is the length of time in which the controller waits with no demand until the 
pump is turned off. 

To set up the controller Idle Delay time, enter the Pump Settings menu, then: 

•  Press the MENU key until the Idle Delay Time prompt screen displays as follows: 

 

 
 
 
 
 
 
 

•  Press the YES key to alter the Idle Delay time.