Investigation of continuous closed-loop temperature control
Study of discontinuous (on/off) temperature control systems
PID parameter tuning for optimal temperature stability
Effect of disturbance variables (fan speed, throttle position)
Measurement of dead time and time constants in thermal systems
Comparison of proportional, PI, PD, and PID control strategies
Real-time temperature monitoring and trend analysis
Description
The SY311 is a compact thermal control module designed for hands-on study of continuous and discontinuous feedback control loops. It features a unipolar electric heater with integrated temperature sensor and fan motor, housed in a transparent air channel for direct visual observation of the heating process. The module is equipped with dual integrated power amplifiers enabling multi-input control strategies such as Fuzzy logic control. Built-in disturbance mechanisms allow realistic exploration of process perturbations.
4mm safety sockets
+15V DC line
extra line for added flexibility
Fan-RPM potentiometer
Transparent viewing section
Fan + electric motor
Heat source
20 W, 20 V
0V line (ground)
-15V DC line
7-segment display
Hot & Cold trend
indicators
Bimetal safety cutoff
100 °C max
Temperature sensor
Throttle flap
5 discrete steps
Temperature sensor output
1 V / 10 °C
Schematic diagram of the SY311 apparatus
Technical Specifications
Heater maximum temperature100 °C
Heater powerUnipolar heat source: 20 W 20V
Dead time (TU)~10 seconds
Compensation time (TG)~120 seconds
Temperature sensorcalibrated 0–100 °C range
Sensor output1V per 10 °C linear signal
Fan speed control1–10 adjustable or external 0–20V signal input
Throttle flapPositions 0 (closed) to 4 (fully open)
Display3-digit 7-segment display with rising/descending trend indicator
Integrated amplifiers2 amplifiers for heater and fan control
Supply voltage±15V DC
HousingTransparent polycarbonate air channel for visual inspection
A complete modular platform for hands-on learning of feedback control, PID tuning, and process dynamics using real thermal, fluid, and mechanical systems.