Description
Micron DPC Process Controller – Universal Process Signal Controller with 24V DC Auxiliary Supply
The Micron DPC Process Controller is a compact and practical industrial process-control instrument designed for monitoring and controlling process parameters received through standard analog signals. It is suitable for applications where a 4–20 mA, 0–1 V DC, or 0–10 V DC input signal needs to be displayed, scaled, and controlled through an industrial panel-mounted controller.
The DPC is supplied with a factory-set input configuration, allowing the instrument to be selected according to the required process signal. Its scalable display range of 0–4000 counts provides flexibility for representing different engineering values according to the connected transmitter or process sensor.
The controller also incorporates a +24 V DC auxiliary supply rated at 20 mA, which can be used for supplying compatible field sensors or transmitters. This feature can simplify control-panel wiring by providing sensor excitation directly from the process controller.
The DPC provides two set points: one dedicated to control and one dedicated to alarm. The control action is specified as ON-OFF, making the controller suitable for applications where equipment needs to be switched ON or OFF according to a defined process set point.
With its compact panel-mounting format and straightforward operating concept, the Micron DPC can be used in industrial automation, process plants, machinery, water treatment systems, HVAC applications, pressure monitoring, flow control, level measurement, industrial instrumentation, and general process control systems.
Analog Process Signal Input
The DPC is designed to accept commonly used industrial analog signals.
The available input configurations include:
- 4–20 mA
- 0–1 V DC
- 0–10 V DC
The required input is factory set and should be specified when ordering.
These signal standards are widely used with industrial transmitters and sensors because they allow measured process information to be transmitted from a field instrument to a control panel.
The DPC can therefore be connected to compatible devices such as:
- Pressure transmitters
- Flow transmitters
- Level transmitters
- Temperature transmitters
- Humidity transmitters
- Differential pressure transmitters
- Industrial signal converters
- Other compatible analog-output sensors
Scalable 0–4000 Count Display
The DPC provides a scalable measurement range of:
0–4000 counts
This allows the displayed value to be configured to represent the engineering value required by the application.
For example, a suitable transmitter signal could be associated with an engineering range such as:
4 mA → Minimum Value
20 mA → Maximum Value
The actual display scaling should be configured according to the selected input and the required process range.
This scalability makes the DPC suitable for monitoring different types of process variables without requiring a dedicated controller for every individual application.
24V DC Auxiliary Supply
One of the useful features of the Micron DPC is its built-in +24 V DC auxiliary supply, rated at:
24 V DC, 20 mA
This auxiliary supply can be used for powering compatible sensors or transmitters that require a low-current DC excitation supply.
For example, in a suitable installation:
DPC Auxiliary Supply → Process Transmitter → Analog Signal → DPC Input
This can help simplify system wiring and reduce the need for a separate auxiliary supply for compatible low-current field transmitters.
The connected device must be checked to ensure that its supply requirements are within the specified auxiliary output capability.
Two Set Points
The DPC incorporates two set points:
- Control Set Point
- Alarm Set Point
This provides the user with separate process-control and alarm functions.
The control set point can be used to determine when the primary control output should operate.
The alarm set point can be used as a separate threshold for generating an alarm condition.
This arrangement allows the controller to perform both basic process regulation and supplementary process monitoring.
ON-OFF Control Action
The DPC uses ON-OFF control action.
ON-OFF control is one of the simplest and most widely used control methods in industrial automation.
The controller compares the measured process value with the programmed control set point and changes the control output according to the configured condition.
For example, in a heating application:
Temperature Below Set Point → Heating ON
Temperature Reaches/Exceeds Control Condition → Heating OFF
Similarly, in a cooling or pumping application, the output can be used to switch the appropriate equipment according to the process requirement.
ON-OFF control is particularly suitable for applications where continuous proportional control is not required.
Pressure Control Applications
When connected to a compatible pressure transmitter, the DPC can be used for basic pressure monitoring and ON-OFF control.
Potential applications include:
- Pump control
- Compressor systems
- Pressure boosting systems
- Hydraulic equipment
- Pneumatic systems
- Process pressure monitoring
The transmitter converts the measured pressure into the selected analog signal, while the DPC displays the scaled value and operates the control function according to the set point.
Level Control Applications
The DPC can also be used with compatible level transmitters.
Typical applications may include:
- Water tanks
- Process tanks
- Storage vessels
- Sump systems
- Liquid-level monitoring
- Pump start/stop applications
A suitable level transmitter provides the analog signal, which the DPC converts into a scaled display value.
The control set point can then be used to operate associated equipment such as pumps, while the alarm set point can provide an additional warning threshold.
Flow Monitoring and Control
Flow transmitters commonly provide 4–20 mA or voltage outputs.
The DPC can be configured with the corresponding input type and used for displaying and controlling a measured flow parameter.
Possible applications include:
- Water flow systems
- Process fluid monitoring
- Pumping systems
- Cooling circuits
- Industrial utilities
- Flow-controlled processes
The scalable display makes it possible to represent the input signal in a suitable engineering range.
General Process Monitoring
The DPC is not restricted to a single process variable. Its analog input architecture allows it to be used with different compatible transmitters.
Depending on the input configuration and application, it can be used for monitoring:
- Pressure
- Flow
- Level
- Temperature
- Humidity
- Vacuum
- Differential pressure
- Other compatible analog process signals
This makes the DPC a flexible component for general industrial instrumentation.
Compact Panel-Mounting Design
The supplied product information specifies a panel size of approximately:
96 × 96 mm
The detailed specification lists the instrument depth as:
96 × 96 × 115 mm
This compact panel format is commonly used in industrial control cabinets and machine panels.
The panel-mounted construction provides convenient operator access to the display and controls while keeping the instrumentation organized within the control panel.
Industrial Applications
The Micron DPC Process Controller can be considered for numerous applications, including:
1. Water Treatment
For level, pressure, flow, and other analog process measurements.
2. Industrial Automation
For ON-OFF control of equipment based on a measured analog process value.
3. Pump Control
For pressure, level, or flow-based pump operation.
4. HVAC Systems
For compatible pressure, temperature, or other analog monitoring applications.
5. Process Plants
For centralized monitoring and basic control of process parameters.
6. Machinery
For monitoring transmitter signals associated with industrial equipment.
7. Chemical Industry
For suitable pressure, flow, level, and process monitoring applications.
8. Manufacturing
For machine and process-control systems requiring analog input processing.
Key Features and Benefits
The Micron DPC provides several useful features for industrial process applications:
- 4–20 mA input option
- 0–1 V DC input option
- 0–10 V DC input option
- Factory-set input configuration
- Scalable 0–4000 count display
- Built-in +24 V DC auxiliary supply
- Auxiliary supply rated at 20 mA
- One control set point
- One alarm set point
- ON-OFF control action
- Compact 96 × 96 mm panel format
- Suitable for various process transmitters
- Useful for pressure, flow, level and other process measurements
- Practical for industrial automation
- Suitable for machine and process-control panels
Why Choose the Micron DPC Process Controller?
The Micron DPC Process Controller is a practical choice for industrial users who need to convert a standard analog transmitter signal into a visible process value while also providing basic ON-OFF control and alarm functionality.
Its support for 4–20 mA, 0–1 V DC, and 0–10 V DC inputs makes it compatible with many commonly used industrial transmitters. The factory-set input arrangement also allows the required signal type to be selected according to the application.
The built-in 24 V DC, 20 mA auxiliary supply can simplify the installation of compatible low-current transmitters.
With a scalable 0–4000 count range, separate control and alarm set points, and ON-OFF control action, the DPC can serve as a compact process-control solution for a wide variety of industrial systems.
Conclusion
The Micron DPC Process Controller is a compact and flexible industrial instrument designed for applications requiring analog process signal monitoring, scalable display, ON-OFF control, and alarm functionality.
With factory-set support for 4–20 mA, 0–1 V DC, or 0–10 V DC inputs, the DPC can interface with a wide range of industrial transmitters. Its 0–4000 count scalable range allows process values to be represented according to the requirements of the connected application.
The built-in 24 V DC, 20 mA auxiliary supply further enhances its usefulness by providing power for compatible low-current sensors and transmitters.
With one control set point, one alarm set point, and ON-OFF control action, the DPC is suitable for pressure, flow, level, temperature, and other analog process-control applications. Its compact 96 × 96 mm panel format makes it well suited for industrial control panels, machinery, automation systems, and process instrumentation installations.
For users looking for a straightforward Micron process controller with scalable analog input, auxiliary transmitter supply, control, and alarm capability, the DPC provides a practical solution for industrial process monitoring and control.
Japsin Instrumentation – Since 1974
