Descripción
The SUPPRESS Research Group (Supervision, Control and Automation) has designed and built didactic models for process control found in Room E2 of the Technological Building II (University of León). These are test cell control strategies equipped with intelligent industrial instrumentation for measuring and controlling flow, level, pressure and temperature. The remote laboratory of Automatic of the ULE provides a system of remote access, through Internet, to these industrial models.

Each plant is composed of the following circuits:
- Process circuit: Including pressure, flow, temperature and level variables.
- Hot water circuit: It includes the necessary elements to heat water.
- Cooling circuit: Heat is transferred to the process circuit.
Fact Sheet
- PRESSURE CONTROL
- Sensor: Intelligent Pressure transmitter 4-20mA+HART.
- Actuator: Vectorial frequency inverter acting on centrifugal pump.
- Basic PID control algorithm.
- Three operation modes: MANUAL, AUTO and REMOTE.
- Measured variable: Barg.
- FLOW CONTROL
- Sensor: Intelligent electromagnetic flow transmitter 4-20mA+HART.
- Actuator: Electric 2-way valve with positioner.
- Basic PID control algorithm.
- Three operation modes: MANUAL, AUTO and REMOTE.
- Measured variable: l/h.
- LEVEL CONTROL
- Sensor: Transmisor de nivel ultrasónico inteligente 4-20mA+HART.
- Actuator: 2-way electrovalve.
- Basic PID control algorithm.
- Three operation modes: MANUAL, AUTO and REMOTE.
- Measured variable: %.
- HOT WATER TEMPERATURE CONTROL
- Sensor: Intelligent ultrasonic level transmitter 4-20mA+HART.
- Actuator: Static variable drive for heating resistor.
- Basic PID control algorithm.
- Three operation modes: MANUAL, AUTO and REMOTE.
- Measured variable: ºC.
- PROCESS TEMPERATURE CONTROL
- Sensor: Intelligent temperature transmitter 4-20mA+HART with probe PT-100.
- Actuator: In split-range with two electric 2/3-way valves with positioner.
- Basic PID control algorithm.
- Three operation modes: MANUAL, AUTO and REMOTE.
- Measured variable: ºC.
Pictures Gallery
HOT WATER RECIRCULATION PUMP
SEDICAL TF 110 pump equipped with a three positions frequency inverter to control it with an analogue signal (min-1450 l/min, medio-2000 l/min, max-2100 l/min). This pump is used to archieve homogeneous heating in the fluid that is in the heating tank.












