The capabilities of Festo’s VEMD have been upgraded to boost the controller’s connectivity, control dynamics and flow range. The controller is designed to automate the flow control of oxygen, nitrogen, argon, CO2 and air. It is also used in 3D printing applications where inert gas protects printed material during deposition. For the most often used gases, the VEMD is configured via software, eliminating the need to purchase and use individual flow meters. The controller’s integrated control circuit with thermal sensor enables the VEMD to work dynamically with minimal hysteresis and react quickly to setpoint changes. Various analog (0-10V, 1-5V, 4-20mA) and digital interfaces such as Modbus TCP/IP and Modbus RTU RS232 and RS485 are available for communication with the VEMD on most models.
