The trainer is composed of:
• an educational board with a pressurized vessel and a set of sensors and actuators for level, pressure, temperature and flow;
• a control module, containing the interface circuits for the sensors and the actuators and the ON/OFF, proportional, integral and derivative control circuits (PID).
TECHNICAL FEATURES
Pressurized vessel capacity: 5 litres approx. Water tank capacity: 20 litres approx.
Temperature sensors:
• platinum thermo-resistance Pt 100
• bi-metallic direct reading thermometer level sensor:
• Capacitive level sensor • Detecting range: 0 to 180mm
• Signal output: 0 to 5V Flux sensors:
• flowmeter 8000 pulses/ litre
• flowmeter, direct reading Pressure sensors:
• strain gauge
•manometer, direct reading Recirculation pump: 6 litres/minute, 12 V, 1.5 A Motor driven valve 4 manual valves Water heating resistance: 48V, 200W Safety valve set at 2.4 bar Safety thermostat Piping: brass Power supply: single-phase from mains With this system, the student will be able to study the following:
• Study of the level, flow, pressure and temperature sensors
• Study of the characteristics of the pump and of the motor pump
• Study of the characteristics of the static process and of the time constants
• ON-OFF, P, PI, PD and PID closed loop control of the level
• P, PI, PD and PID closed loop control of the flow
• ON-OFF, P, PI, PD and PID closed loop control of the temperature
• ON-OFF control of the level with the pressure sensor Optionally, it is possible to connect to the trainer:
• a microprocessor based process controller of industrial type (DL 2314C)
• a process recorder (DL 2314R)
• a programmable logic controller (DL 2210B)
• a personal computer with suitable interface module and software (PC with DL 1893 and DL 2314SW)
