Description

AL-E187D LEVEL AND FLOW PROCESS CONTROL TRAINER

AL-E187D LEVEL AND FLOW PROCESS CONTROL TRAINER

Product Description

The AL-E187D Level and Flow Process Control Trainer is a practical process-control training system designed for studying level, flow, pressure and temperature regulation using a PLC or external controller.

The trainer provides 4 mm socket connections for analog and digital signals and supports 0–10 V analog voltage signals and 24 V TOR (ON/OFF) signals. It is suitable for laboratory training in PLC-based process automation, instrumentation and control engineering.

Features

• Dedicated training system for level and flow control.
• Suitable for PLC or external regulator connection.
• Analog I/O through 4 mm sockets.
• Analog signal range: 0–10 V.
• Digital/TOR signal level: 24 V.
• Up to 6 control loops possible with appropriate optional modules.
• Practical process-control system with transparent acrylic tanks.
• Adjustable-flow centrifugal pumps.
• Manual flow-control valves.
• Float switches for level indication.
• Variable-flow pump controlled through a frequency converter.
• Pressure sensor for level measurement.
• Integrated control switches, push buttons and status lamps.
• Compatible with process-control training software.

Possible Control Loops

Up to six control loops can be configured with the corresponding additional options.

Technical Specifications

Automation / TP Control-Command Section

The trainer shall include the following automation components:

• 4 × pumps
• 3 × float switches
• 3 × control switches
• 2 × push buttons
• 3 × indicator lamps

ü  Green

ü  Yellow

ü  Red

These components allow students to develop and test practical automation sequences and process-control commands.

Process Control Software

The trainer shall be compatible with LC2030 Training Process Control Software and an optional input/output module.

The software shall allow students to:

1. Study Control Circuits

Study and configure standard controllers including:

• P Controller
• I Controller
• PI Controller
• PID Controller
• Hysteresis Controller

Controller parameters can be modified for studying the effect on the process response.

2. Transient Response Analysis

The software shall allow:

• Recording of transient responses.
• Graphical display of process responses.
• Analysis of regulation-loop characteristics.
• Comparison of different controller settings.

3. GRAFCET / Logic Programming

Students can:

• Develop automation commands using GRAFCET.
• Develop logic diagrams.
• Test control sequences directly on the training system.
• Study PLC-oriented process automation.

Main Process Components

Acrylic Process Tanks

• 2 Nos. transparent acrylic-glass tanks.
• Approximate dimensions: 110 × 180 × 400 mm.
• Approximate capacity: 8 litres each.
• Transparent construction permits direct observation of liquid level.

Pump System

• 2 Nos. centrifugal pumps.
• Maximum flow: approximately 270 L/h.
• Manual valves for flow adjustment.
• Quick-connect arrangement for convenient process configuration.

Variable-Flow Pump

• 1 No. variable-flow pump.
• Controlled through frequency converter.
• Control signal: 0–10 V.
• Maximum flow: approximately 230 L/h.

Level Measurement

• Pressure sensor for level measurement.
• Output: 2–10 V.
• Three float switches for level-status/control functions.

Accessories & Connections

The trainer shall include:

• 6 × quick couplings for pump connections.
• 1 × quick coupling with hose for tank emptying.
• 2 × manual flow-adjustment valves.
• 4 mm electrical connection sockets.
• Suitable process tubing and connections.
• Integrated control switches and push buttons.

Training Experiments

The AL-E187D is suitable for experiments including:

1. Study of level-control systems.
2. Study of flow-control systems.
3. Level control using an adjustable-flow pump.
4. Flow control using an adjustable-flow pump.
5. Pressure-control applications.
6. Level control using a proportional solenoid valve.
7. Flow control using proportional valve.
8. Study of P control.
9. Study of I control.
10. Study of PI control.
11. Study of PID control.
12. Study of hysteresis control.
13. Recording and analysis of transient response.
14. PLC-based process automation.
15. GRAFCET sequence programming.
16. Logic-diagram-based control.
17. Study of float-switch-based level automation.
18. Development and testing of automatic pump-control sequences.

Documentation & Software

The system shall be supplied with:

• User Manual – Paper Version
• Practical Work Manual – Paper Version
• User Manual – Digital Version
• Practical Work Manual – Digital Version
• Necessary process-control software
• Software documentation
• Control-loop experiment documentation
• PLC/process-control training material

Product Summary

AL-E187D Level and Flow Process Control Trainer provides a modular platform for practical study of level, flow, pressure and temperature control, with PLC/external-controller interfacing, 0–10 V analog signals, 24 V digital signals, configurable control loops, transparent process tanks, pumps, sensors, valves and software-based control and analysis.

Technical Details