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Flow control bench - level - pressure - temperature

MP111

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Service : 7 kW - 380 V tri - 50 Hz
Compressed air: 6NL / h, 4 bars (not supplied)
Computer for using the software

Dimensions : 1500 x 800 x 2100 mm

Weight : ~150kg

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DEMANDER UN DEVIS POUR CETTE MACHINE

The bench allows the implementation of several regulations. 5 processes are possible :

1. Level control Actuator: Pneumatic valve Sensor: Water pressure transmitter Disturbance: Leakage on the pipe, leakage under the column.
2. Flow control Actuator: Pneumatic valve Sensor: Pallet flow meter Disturbance: Leakage on the pipeline.
3. Pressure regulation Actuator: Pneumatic valve Sensor: Pressure transmitter Disturbance: Leakage on the pipeline.
4. Temperature control Actuator: immersion heater Sensor: tank temperature sensor Disturbance: cold water supply.
5. Cascade temperature / flow control Actuator: pneumatic valve Sensor: temperature probe at the heater outlet and pallet flow meter Disturbance: leakage on the pipe, variation of the heating power.

The bench consists of a common module (feed tank, pump, electrical box) and a specific instrumentation specific to each loop to be studied (actuator, pneumatic valve, static power unit and measurement, differential pressure sensor, Pt100 probes, vane flowmeter). The student will be able to choose his loop by multiposition switch and measure the inputs / outputs of the regulators.

Educational Objectives :

Level regulation (first order process + integrating process)
Pressure regulation (1st order process)
Temperature regulation (1st order process)
Flow regulation (1st order process)
Cascade regulation: temperature / flow
Temperature regulation in all or nothing
Study of the static response
Open Loop and Closed Loop Identification
Calibration of a level sensor

Technical specifications :

A 50-liter feed tank, with racking and overflows placed at two different levels
A stainless steel coil for heating water in the tank
Column in altuglas, with overflow, graduations, draining and racking
Centrifugal pump, 380 V three-phase
A master controller with universal input, 4-20 mA output and a slave controller - Control algorithms P, PI, PID, PD +
MR; Auto / manual function - self-adaptive; Triple measurement / output / setpoint display - Both Ascon brand controllers have RS485 communication cards
An additional temperature controller
Pneumatic proportional valve
A P / I converter
A pressure sensor (4-20 mA output)
Pallet flow meter (4-20 mA output)
Four float flowmeters
A pressure sensor (4-20 mA output) placed at the bottom of the water column
An immersion heater with thermostat
Two temperature sensors
An electrical box including the regulators, the protection of the pump and its control.
A multiposition switch to choose the assignment of the inputs / outputs of the regulators according to the loop to study the thermostat, the static power unit, the converters, the sensor power supplies
Recovery of the input / output of each regulator on secure double-well terminals

Options :

MAC 2 acquisition module composed of:

- an RS485 / RS232 converter
- a Windows operating system that allows:

reading the PID parameters,
the plot of the curves,
the configuration of the remote controller,
archiving values.

DEMANDER UN DEVIS POUR CETTE MACHINE

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