Instruction Manual

Introduction 5
Encoded Motor
Earlier models of the DP-3000 Series pumps were designed using motors which have specific speeds.
See Table 1-3. The speed of the motor affects the flow rate accuracy of the volume of fluid dispensed.
Newer models of the DP-3000 Series pumps are designed with an encoded motor. The encoder control
assures consistency when installing the DP-3000 on different dispensing systems. The encoded motor
also allows for a faster refill, permitting greater throughput.
Table 1-3 Motor Configuration
Model Type Value Color
DP-3XX1 Very slow motor 369:1 ratio Green
DP-3XX2 Slow motor 84:1 ratio Grey
DP-3XX4 Fast motor 19:1 ratio Black
DP-3XX0 All speeds (encoded) 19:1 ratio Black
DP-3XX0-02 Low speeds (encoded) 84:1 Blue
The main difference between the encoded motor and the non-encoded motor is that the encoded motor
provides more accurate speed control over a much wider range of dispensing speeds, allowing one motor
to be used for a much broader range of flow rates, enhancing accuracy for small shots. It also allows
faster refills on applications that require lower fluid flow rates, such as underfill applications.
" NOTE Although various motor speeds are available, a DP-3000 with an encoded motor
increases accuracy and pump response flexibility.
Upgrade Kits
The SDP-3XX1, SDP-3XX2, and SDP-3XX4 Motor Upgrade Kits allow you to convert the model of the
pump by changing the motor model. For example, you can convert a DP-3XX2 model pump into a
DP-3XX4 model pump, and vice versa. Converting from one pump to another can radically change the
flow rate performance of the pump. There are three motors that can be easily interchanged. The type of
motor used directly affects the flow rate, and each model is most useful for specific applications within the
range of dot accuracy shown in Table 1-4. Motor upgrade kits are available through Asymtek.
" NOTE Upgrading to an encoder-controlled version may require you to modify the fluid
dispensing platform with some new electronics and pneumatics. This upgrade includes
changes that separate the syringe pressure from the actuator. Contact the Asymtek for
details about upgrades.