Abstract: Systems and methods for dispensing or jetting a viscous material. The systems include an electronic controller and a jetting dispenser operatively coupled with the electronic controller. The systems further include at least one sensor that senses a system dispensing parameter and communicates an output signal representing the sensed parameter to the electronic controller for controlling system operation. In pneumatically-actuated jetting dispensers, a sensor may sense the fluid pressure in the air cavity of the pneumatic actuator. In jetting dispensers with a movable needle valve, a sensor may sense the displacement of the needle shaft. In other jetting dispensers, a sensor may sense the vibration of the jetting dispenser.

Abstract: A fluid dispensing system and method therefore having a PDA controller is provided. The system includes a dispensing apparatus, a positioning system and a general purpose PDA for controlling the system. The PDA optionally includes dispensing system logic for communicating with the dispensing apparatus. The dispensing system logic optionally includes one or more of positioner control logic, create program logic, store program logic, teach logic and recall program logic. The PDA communicates with the positioning system and/or the dispensing apparatus by a wired and/or wireless connection. Optionally a plurality of dispensing systems are networked together and the PDA communicates with one or more dispensing systems via a connection to the network. The network may be wired or wireless, and the PDA may have a wired or a wireless connection to the network.