Pressure Control Trainer | Prozessi PX 17
The Pressure Control Trainer, Prozessi PX 17 , is a tabletop setup for studying pressure control principles. It includes a pressure vessel, pneumatic control valve, pressure transmitter, and I/P converter, along with a digital indicating controller with Ethernet communication. The pressure control trainer supports ON-OFF, PID, and auto tuning studies along with SCADA based monitoring. All components are mounted on a compact support housing for tabletop use.
The Pressure Control Trainer, Prozessi PX 17 , is designed for understanding the basic principles of pressure control using a pressure vessel and pneumatic control valve. This pressure control trainer allows students to study open loop and closed loop control, tuning methods, and SCADA based monitoring of pressure.
Product Overview
The Pressure Control Trainer, Prozessi PX 17, consists of a pressure vessel fitted with a pneumatic control valve. A pressure transmitter is used for pressure sensing. The process parameter, pressure, is controlled by a microprocessor based digital indicating controller which manipulates the pneumatic control valve, fitted at the outlet of the pressure tank, through an I/P converter. These units, along with the necessary piping, are fitted on a support housing designed for tabletop mounting. The controller can be connected to a computer through an Ethernet port for monitoring the process in SCADA mode.
Pressure Control Trainer, Prozessi PX 17 — Technical Specifications
| Parameter | Specification |
|---|---|
| Product | Pressure control trainer |
| Product code | Prozessi PX 17 |
| Type of Control | SCADA |
| Control Unit | Digital indicating controller with Ethernet communication |
| Pressure Transmitter | Type Two wire, Range 0 to 5 bar, Output 4 to 20 mA |
| I/P Converter | Input 4 to 20 mA, Output 3 to 15 psig |
| Control Valve | Type Pneumatic, Size 1/4 inch, Input 3 to 15 psig, Air to close, Characteristic Linear |
| Process Tank | Pressure vessel, MS |
| Air Filter Regulator | Range 0 to 2.5 kg/cm2 |
| Pressure Gauge | Range 0 to 2.5 kg/cm2 (1 No), Range 0 to 7 kg/cm2 (1 No) |
| Overall Dimensions | 550W x 475D x 520H mm |
| Support Table | 800W x 800D x 750H mm |
Technical Data
Control Unit
| Parameter | Value |
|---|---|
| Type | Digital indicating controller with Ethernet communication |
Pressure Transmitter
| Parameter | Value |
|---|---|
| Type | Two wire |
| Range | 0 to 5 bar |
| Output | 4 to 20 mA |
I/P Converter
| Parameter | Value |
|---|---|
| Input | 4 to 20 mA |
| Output | 3 to 15 psig |
Control Valve
| Parameter | Value |
|---|---|
| Type | Pneumatic |
| Size | 1/4 inch |
| Input | 3 to 15 psig |
| Action | Air to close |
| Characteristic | Linear |
Process Tank
| Parameter | Value |
|---|---|
| Type | Pressure vessel |
| Material | MS |
Air Filter Regulator
| Parameter | Value |
|---|---|
| Range | 0 to 2.5 kg/cm2 |
Pressure Gauge
| Parameter | Value |
|---|---|
| Range 1 | 0 to 2.5 kg/cm2, 1 No |
| Range 2 | 0 to 7 kg/cm2, 1 No |
Key Features
- Control Modes: ON-OFF and PID operation
- Loop Tuning: Open and closed loop tuning
- Tuning Method: Auto tuning supported
- Analysis: Stability analysis
- Monitoring: SCADA study on this pressure control trainer
- Communication: MODBUS communication
- Mode: Simulation mode available
Experiments
- Study of open loop (manual control)
- Study of on/off controller
- Study of proportional controller
- Study of proportional integral controller
- Study of proportional derivative controller
- Study of PID controller
- Tuning of controller (open loop method)
- Tuning of controller (closed loop method)
- Tuning of controller (using auto tuning)
- Study of stability of the system (Bode plot)
Construction and Design
The Pressure Control Trainer, Prozessi PX 17 Model 314A, is built around a pressure vessel fitted with a pneumatic control valve. The pressure transmitter senses pressure in the vessel, and the control valve, fitted at the outlet of the pressure tank and operated through an I/P converter, regulates the process. These units, along with the necessary piping, are mounted on a support housing designed for tabletop mounting. This construction supports the pressure control trainer in both manual and SCADA controlled modes.
Software
Specially developed SCADA software is provided which helps in learning the principles of control. Different experiments can easily be selected and studied. The software is easy to use, flexible, and includes features like data access, trend plots, data logging, printing, and data export.
Scope of Delivery
- Pressure vessel, MS
- Pneumatic control valve
- Pressure transmitter
- I/P converter
- Digital indicating controller with Ethernet communication
- Air filter regulator
- Pressure gauges
- Support housing with piping
- SCADA software
Required for Operation
- Electric supply: 230 +/- 10 VAC, 50 Hz, 1 phase
- Air supply: Clean, oil and moisture free air, pressure 6 bar, air consumption 7.0 m3/hr
- Computer with standard configuration
- Support table: 800W x 800D x 750H mm
Q1: What does the Pressure Control Trainer help students understand?
A: It is designed for understanding the basic principles of pressure control using a pressure vessel, pressure transmitter, and pneumatic control valve.
Q2: How is pressure measured in this trainer?
A: Pressure is measured using a two wire pressure transmitter with a range of 0 to 5 bar and an output of 4 to 20 mA.
Q3: How is the control valve operated?
A: The pneumatic control valve is operated through an I/P converter, which converts the 4 to 20 mA controller output into a 3 to 15 psig pneumatic signal.
Q4: Can the trainer be monitored remotely?
A: Yes, the controller can be connected to a computer through an Ethernet port for monitoring the process in SCADA mode.
Q5: What software is provided with the trainer?
A: A specially developed SCADA software is provided, offering data access, trend plots, data logging, printing, and data export.
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