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PROCESS TANK AND SUMP TANK
PROCESS TANK AND SUMP TANK
The process control laboratory is composed of two major sections, the process tank and the sump tank.
The PROCESS TANK is designed for teaching the process control principles.
The SUMP TANK has pipelines for process water supply and for water draining out from the process tank.
INSTRUMENTATION
INSTRUMENTATION
Components in the PROCESS TANK (pressurized vessel)
Level sensor and Metric scale for measuring the water level (cm or mm)
Float switch (to detect the level of water within the pressurized tank)
Heating element
Temperature sensor (PT100) and Thermometer for measuring the temperature inside the process tank (°C)
Pressure sensor and Pressure gauge for measuring the pressure (bar)
4 types of Valves (3 manual and 1 controlled)
Components in the SUMP TANK (water tank)
Delivery valve (the main water supply valve)
Turbine Flow Meter (volumetric measuring turbine)
Motor pump with thermal protection
Visual Flow Meter (indicator for flow rate)
Manual valve (for reducing the water flow)
Motor valve (for controlling the water flow)
INSTRUMENTATION AND CONTROL SUMMARY
INSTRUMENTATION AND CONTROL SUMMARY
The CONTROL MODULES include interface signal conditioners for sensors, power drivers for actuators and basic control logic (that behave as either a regulating device or a state-oriented device):
INPUT
Level transducer
Flow transducer
Temperature transducer
Pressure transducer
CONTROLLERS
ON-OFF
ON-OFF with hysteresis
PID (P, P-I, P-D, P-I-D)
PLC Module
OUTPUT
Linear driver for PUMP
Driver for MOTOR VALVE
PWM driver for HEATER
ON-OFF driver for SOL VALVE
CHARACTERISTICS OF THE SIGNAL, POWER AND CONTROL MODULES
CHARACTERISTICS OF THE SIGNAL, POWER AND CONTROL MODULES
The process plant has an associated panel that shows the entire process diagram using standard symbols. This is very useful for the students in understanding the basic concepts of process control.
The trainer is provided complete with a detailed educational manual. Following the experiments, the student will be guided step by step into learning how: to calibrate a sensor, to obtain the characteristic of a static process and time constant, to control a process by ON-OFF, Proportional, Proportional-Integral and Proportional-Integral-Derivative controllers.
The control panel is developed to give the possibility to be connected to a programmable logic controller (DL 2210B) or a personal computer with suitable interface module and software (DL 1893 and DL 2314SW).
WHAT DO STUDENTS LEARN IN PRACTICE
WHAT DO STUDENTS LEARN IN PRACTICE
Sensors, transducers, signals
Instrumentation electrical connections
Calibration of sensors
Studying the dynamic characteristics of each process
Obtaining the characteristic of a static process and time constant
Control principles
Controlling processes with ON-OFF, P, PI, PID controllers
Using seal-in contacts in PLC programs
Using timers to control the PLC output
Controlling the output signal with periodic signals
Using counters to control the PLC output
Using multiple functions to change the system operation
Controlling processes through PLC PID Controller
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