Liquid Temperature Regulation Study Station

This bench is designed for the study of the general principles of electrothermics. It is capable of performing temperature regulation in several ways. It includes various regulation, instrumentation, and control loops. Learn about Liquid Temperature Regulation Study Station manufacturers for optimal educational outcomes.. A perturbation circuit highlights the process response. The bench is designed to operate in complete autonomy from the distribution network. Learn about Liquid Temperature Regulation Study Station India for optimal educational outcomes.. Topics covered include: temperature sensor, sensor performance, current generator supply, 3-wire connection, energy modulation, modulator operating principles, heating power determination, heat transfer coefficients, temperature regulation (P, PI, PID, self-adaptive PID), process response, temporal analysis.

Operative Part:

The bench consists of a mobile chassis integrating a tank containing:

• An immersion heater (3 kW)
• A temperature sensor (Pt 100 probe)
• A low-level safety device
• A safety thermostat
• A centrifugal pump
• An air cooler for creating a perturbation in the regulation loop, providing the following advantages: repeatability of experiments without waiting for natural water cooling, and system independence from water network connections

Control and Command Part:

An IP66 electrical cabinet containing:

• Power supply and protection equipment (circuit breaker, contactor, fuses, transformer)
• Heating modulator: 1 wave-train power unit
• A Pt 100 probe converter
• Control elements
• A self-adaptive PID regulator
• A thermostat

The regulator and thermostat are integrated into a silk-screen printed synoptic on the cabinet front. The synoptic also integrates various measurement points isolated from the supply network:

• Instantaneous voltage, instantaneous current, setpoint, effective power, on/off control signal, analog control signal, temperature

The regulator and power unit are detachable for individual component study:

• Study of the Pt 100 converter
• Regulator removal for external use
• Replacement of power units (wave train) by an external phase-angle controller

A commutator allows selection of temperature control type: thermostat or PID regulator.