Unformatted text preview: AUTOMATION PROCESS CONTROL TRAINER 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 sensors: • linear variable‐differential transformer (LVDT) • on‐reed ON/OFF sensor 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) DL 2314 ...
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- Fall '14