| 摘要 |
A dispensing apparatus having a plurality of programmable buttons adapted to activate a sequence that dispenses a desired amount of product. A circuit board is coupled between dispense activation buttons, a programming button and a valve manifold and includes a timer, accumulator, memory and controller together to operate solenoid valves. In learn mode, the cumulative time that a particular button is depressed is programmed into a memory circuit and associated with that button. In dispense mode, depressing that dispense activation button causes power to be supplied to a solenoid, thereby directing pressurized air to a particular pump responsible for pumping a particular type of product from a source to the dispensing head. Power is supplied to the solenoid for a time period stored in memory during the programming steps. In this way, the dispensing apparatus can be easily programmed to dispense a desired amount of product having various viscosities.
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