Air Pressure

System

The pressure training system is a pneumatic single-circuit control system. It allows both the principles of pressure control of a process and the control of flow rates in a pressurised system to be studied. Separately controlled branches provide air for the process pressure and the control pressure. The process branch includes a regulator, a variable area flow meter, a pneumatically actuated control valve, an orifice block with variable orifice plates and both differential and measuring point pressure sensors.

Functions

• Safe low-pressure operation
• Complete measurement of pressure and flow rate
• Differential and gauge pressure sensors
• Current-controlled (4-20 mA) pneumatically actuated control valve
• Standard industrial components
• Self-sealing outlets for pressure gauges
• Safety valves as standard
• Air is used as process gas

Method

The equipment uses industrial components for practice-orientated and industry-related training. The experiments are carried out with an electronic manual in ESPIAL.

Target groups

Vocational training in electrical engineering in trade and industry and students specialising in automation technology and mechatronics. The course offers both introductory experiments at a simple level as well as challenging topics for the bachelor's programme.

Topics

• Safe low-pressure operation
• Complete measurement of pressure and flow rate
• Differential and overpressure sensors
• Current operated (4-20 mA) pneumatically actuated control valve
• Standard industrial components
• Self-sealing outlets for pressure gauges
• Safety valves as standard
• Air is used as process gas
• I/P converter and pneumatic control valve operation
• Controller familiarisation and adjustment
• Automatic control systems
• Serial communication
• Pressure sensor, transmitter and IP converter - Linearity and hysteresis
• Pneumatic control valve - characteristics of different pressure ranges
• System response and compressed air tank
• Dosing valve and dosing process control basics
• Investigation of P, PI and PID pressure control
• Setting the differential pressure sensor and transmitter