Temperature, flow, pressure and level sensor applications

The elements included in the “FLPTU” unit are:

• Water Supply Unit.

Module designed to pump water to the other devices of the application.

The elements included in the module are:

Water pump, with 20 l/min of maximum flow.

Plastic tank, with 30 litres of capacity.

 

• Hot Water Pumping Unit.

Water pumping unit designed for temperature control applications.

The elements included in the module are:

Circulation pump:

Supply voltage: 230 VAC single-phase.

Nominal power: 103 W.

Rated flow: 10 to 63.2 l/min.

Max operating pressure: 10 bar.

Safety relief valve:

Pressure setting: 3 bar.

Discharge line.

Additional manual opening system

Pressure gauge:

Pressure range: 0 to 4 bar.

Automatic air vent valve.

 

• Pneumatic Control Valve.

Normally closed valve.

Linear plug.

IPC Converter 4 – 20 mA to 0 – 15 psi.

Control signals: 3 to 15 psi.

Actuator: diaphragm type.

Pressurized air inlet required: 2.5 bar.

Two pressure gauge.

Manual Ball valve.

Air Filter and Pressure Regulator with Pressure Gauge:

Air pressure inlet admitted range: 0 to 10 bar.

Output pressure 2.5 bar.

Drain capacity 12 cm3.

Filtration: 5m.

 

• Heat Exchanger unit.

Heat exchanger.

Type: plate heat exchanger.

Manual Ball valve.

Temperature sensor “J Type” thermocouple:

Transducer type: Thermocouple Type J.

Temperature range: -100 to 900 ºC.

Accuracy: ± 1 ºC.

 

• 2 kW Heating Element.

Heating resistance:

Supply voltage: single-phase 220 VAC.

Max power: 2 kW.

Safety temperature switch.

Safety temperature sensor:

Transducer type: Thermocouple Type J.

Temperature range: -100 to 900 ºC.

Accuracy: ± 1 ºC.

Safety low level switch.

Control module box.

2 kW power control driver.

Based on Solid State Relay (SSR).

24 VDC Digital input.

Safety temperature controller:

On/Off control.

Set temperature: 65 ºC.

Safety stop input for low level switch.

 

• Paddle Wheel Flow Meter Sensor.

Maximum flow rate: 20 l/min approx.

Pulsed output.

 

• Differential Pressure Sensor.

Smart differential pressure transmitter.

Output signal: 4 to 20 mA with HART protocol.

 

• Mechatronic Piston Flow Meter Sensor.

Supply voltage: 24 VDC.

Flow rate range: 0.5…25 l/min.

Two digital outputs NO or NC.

Red or green backlight depend of the flow rate measured.

Four digits LED display.

 

• Ultrasonic Sensor.

Supply voltage: 24 VDC.

Water height range: 60 to 800mm

Output current: 4 to 20 mA.

 

• Pressure Sensor.

Supply voltage: 24 VDC.

Pressure range: 0 to 1 bar.

Output current: 4 to 20 mA.

 

• Pressurized Transparent Tank.

Pressurized transparent tank with graduated scale for level and pressure applications.

The elements included are:

Pressurized tank:

Max pressure: 4 bar.

Height: 750 mm.

Diameter: 140 mm.

Volume: 11.5 l.

Height with millimeter scale: 550 mm.

Polycarbonate protective cover.

Safety relief valve:

Discharge line.

Manual Ball valves.

 

• Power Supply Module for Control Circuits.

Supply voltage (Single-phase): 230 VAC, L+N+G.

Emergency stop pushbutton.

ON-OFF removable key.

 

• Industrial Controller.

Display: Full-color LCD 5.5 cm (2.2 in) with built-in backlight.

Control parameters:

Control type:

On/Off control.

P, PI, PID control.

Control output:

Analog output.

Time proportioning.

On / Off.

Motorized valve with feedback.

Motorized valve without feedback.

Split output with combinations of relay, digital output and current outputs.

Autotune function:

On-demand calculation of control settings.

Set points:

Configurable through the front panel.

Up to two local set points, all selectable via digital inputs or front panel.

Eight blocks math functions.

Eight blocks of logic functions.

Eight blocks process alarms.

Analog input with 125 ms of sample rate.

Analog output.

Relay up to 5 A at 240 V.

 

• Panel Meter Module.

Two analog panel meter:

Device size: 92 x 92 mm.

Input signal range: 4 – 20 mA.

Two digital panel meter

Four digit LED display.

Input signal range: 4 – 20 mA.

 

• Four-channel Signal Paperless Recorder.

Full-color LCD display.

4 Universal Analog inputs 4 – 20mA.

 

This application needs compressed air. The following accessory is recommended: (It is not included in the supply)

• SU-P. Pneumatic Supply Unit.

Module to supply compressed air to the rest of devices of the application.

The elements included in the “SU-P” module are:

Air compressor of 8 bar approx.

50 l/min of air flow.

 

Cables and Accessories, for normal operation.

Manuals:

This unit is supplied with manuals: Required Services, Assembly and Installation, Control Software, Starting-up, Safety, Maintenance & Practices Manuals.

 

– Dimensions: 1200 x 700 x 400 mm approx. (47.24 x 27.55 x 15.74 inches approx.) – Weight: 110 Kg approx. (242 pounds approx.)

 

EXERCISES AND PRACTICAL POSSIBILITIES

1.- Familiarization with the main components of a control system: sensor, actuator and controller.

2.- Preparation of the piping and instrumentation diagram (P&ID) of flow, level, pressure and temperature control system.

3.- Effect of the parameters of a PID controller.

Flow control loop:

4.- Flow control open loop (manual).

5.- Flow control loop (on/off).

6.- Flow control loop (Proportional + Integral + Derivative).

7.- PID tuning of a flow control system.

8.- Effect of disturbances in a flow control system with PID controller.

Level control loop:

9.- Level control open loop (manual).

10.- Level control loop (on/off).

11.- Level control loop (Proportional + Integral + Derivative).

12.- PID tuning of a level control system.

13.- Effect of disturbances in a level control system with PID controller.

Pressure control loop:

14.- Pressure control open loop (manual).

15.- Pressure control loop (on/off).

16.- Pressure control loop (Proportional + Integral + Derivative).

17.- PID tuning of a pressure control system.

18.- Effect of disturbances in a pressure control system with PID controller.

Temperature control loop:

19.- Temperature control open loop (manual).

20.- Temperature control loop (on/off).

21.- Temperature control loop (Proportional + Integral + Derivative).

22.- PID tuning of a temperature control system.

23.- Effect of disturbances in a temperature control system with PID controller.

– AE-PLC-PAN (also available with others PLC manufacturers: PANASONIC, SIEMENS, OMRON, MITSUBISHI, ALLEN BRADLEY, etc. ):

The practices available with the unit are:

24.- Reading and calibration of the pressure sensor signal with the PLC.

25.- Reading and calibration of the flow sensor signal with the PLC.

26.- Reading and calibration of the ultrasonic sensor signal with the PLC.

27.- Reading and calibration of the differential pressure transmitter sensor signal with the PLC.

28.- Manual control of the pneumatic control valve with the PLC.

29.- Pressure control loop with PLC.

30.- Flow control loop with PLC.

31.- Level control loop with an ultrasonic sensor and PLC.

32.- Level control loop with a differential pressure transmitter and PLC.

– Several other exercises can be done with the PLC alone and designed by the user.