Instruction manual

22 World Precision Instruments
Schematics
PV820 Block Diagram
NO NC
Pressure Input
Filter
Pressure
Regulator
Eject
Pressure
Gauge
Hold Pressure Gauge
Pressure
Regulator
Solenoid
Toggle Valve
(hold/vent)
Eject Pressure Output Port
Filter
Vacuum Input
Filter
Inactive
Active
Hold
Vacuum
Toggle Valve
(Pressure/Vac)
Atmosphere
Hold Pressure
Output Port
Fig. 17— The schematic diagram shows the inner workings of the PV820 PicoPump.
PV830 Block Diagram
NO NC
Pressure Input
Filter
Pressure
Regulator
Eject
Pressure
Gauge
Hold Pressure Gauge
Pressure
Regulator
Solenoid
Toggle Valve
(vac/hold)
Pressure Output Port
Vacuum Gauge
Vacuum
Regulator Filter
Vacuum Input
Filter
Inactive
Active
Hold
Vacuum
Toggle Valve
(Vac/Atm)
Atmosphere
Vacuum/Atm
Output Port
Fig. 18— The pneumatic block diagram of the PV830 PicoPump is shown.