WESTINGHOUSE 1C31194G02

The Westinghouse (now Emerson) 1C31194G02 appears to be a Valve Positioner Module used within the Emerson Ovation control system. Here’s a breakdown of its potential functionalities and key features:

Function:

The 1C31194G02 module plays a critical role in ensuring precise control of flow rates within a process control system by:

1. Receiving Control Signal: It receives a control signal from the Ovation system controller, indicating the desired position (percentage opening) for a control valve.
2. Sensing Actual Valve Position: The module might employ a mechanical linkage or an electronic position sensor to determine the actual position of the valve stem.
3. Comparing Setpoint and Actual Position: It compares the desired valve position (setpoint) from the control signal with the actual valve position it senses.
4. Adjusting Valve Actuator Pressure: Based on the difference between the setpoint and actual position, the module regulates the air or hydraulic pressure supplied to the valve actuator (e.g., diaphragm or piston actuator).
5. Overcoming Friction and Disturbances: By adjusting the actuator pressure, the module compensates for friction in the valve mechanism and process disturbances (e.g., pressure fluctuations). This ensures the valve moves to the desired position and maintains the targeted flow rate.

Key Features (to be confirmed in the datasheet):

• Supported Valve Types: The specific types of control valves the module can be used with (e.g., globe valves, butterfly valves).
• Input Signal Type: The format of the control signal it receives from the Ovation system controller (e.g., analog voltage or current signal).
• Position Feedback Mechanism: The method used to determine the actual valve position (e.g., mechanical linkage or electronic position sensor).
• Air/Hydraulic Pressure Supply Range: The range of air or hydraulic pressure the module can regulate to control the valve actuator.
• Additional Features (depending on the model): Some valve positioners might offer advanced features like:
  • Split Range Capability: Allows independent adjustment of opening and closing speeds of the valve.
  • Damping: Reduces the impact of rapid pressure changes or vibrations on valve movement.
  • Limit Switches: Provide feedback on whether the valve has reached its fully open or closed positions.

Applications (within Emerson Ovation Control Systems):

The 1C31194G02 Valve Positioner Module finds application in various industrial automation and process control scenario

s where precise flow rate control is critical:

• Flow Rate Regulation: In processes like chemical mixing, pipeline pressure control, or boiler feedwater systems, the module ensures control valves maintain the desired flow rates by precisely adjusting their positions based on control signals from the Ovation system.
• Improved Valve Performance: The positioner compensates for factors like friction and disturbances, leading to more accurate valve positioning and better flow control compared to using a direct control signal.
• Process Stability: By maintaining precise flow rates, the valve positioner contributes to overall process stability and optimizes product quality or production efficiency.

Finding More Information:

A specific datasheet for the Emerson (formerly Westinghouse) 1C31194G02 Valve Positioner Module is essential to determine its exact features in detail. Here are some ways to find it:

• Emerson Automation Solutions Website: Search the Emerson Automation Solutions website for resources related to the Ovation system or the 1C31194G02 part number [Emerson Automation Solutions website ON emerson.com]. You might find datasheets, user manuals, or application notes describing the module’s functionalities and specifications.
• Industrial Parts Suppliers: Some suppliers sell surplus or used automation components, including Emerson Ovation system parts [supplier 1], [supplier 2], [supplier 3] (similar to previous searches, I cannot share URLs). These listings may offer:
  • Limited technical specifications about the 1C31194G02 (if available in their database).
  • 
  • Compatibility information with specific Ovation system models.
• Contact Emerson Automation Solutions Support: Given the technical nature of the Ovation system, contacting Emerson Automation Solutions support directly might be the most effective way to obtain the datasheet and ensure compatibility with your specific system configuration.

Additional Tips:

• Context is Key: Consider the context in which you encountered the 1C31194G02 (e.g., system documentation or used with a specific valve application). This can provide clues about the types of control valves it supports and its role within the process control loop.
• Physical Module Markings: If you have the physical module, look for any markings or labels on it, including model variations (e.g., 1C31194G02A) or