Ultra low-pressure pressure regulatorMicroAir IV

for air spring single-stage

Definition: Auxiliary Equipment for Plastic tubing extrusion lines especially medical and catheter manufacturers that require precise stable air pressure put into the inlet in the die to control the ID inner diameter of the tube. MicroAir IV Ultra Low Pressure Air Controller for plastic tubing extrusion lines with 0-10 volt input for controlling by PLC or other device or for high speed switching when making bump/taper tubing.(MAIV) Application: The MicroAir IV accepts a logic input to select one of two set points, and a zero to 10 VDC analog input to provide any pressure from near zero to full scale instantaneously. Can be connected to your PLC or any controller with the 0-10 volt input and if an added output option, can have closed loop control. Operation: The MicroAir IV is connected to normal factory air within the range of 50 to 120 psi. It then regulates to the pressure set by a 0 to 10 volt input, or to one of the two manually set pressures by expelling surplus air. A precision voice-coil linear motor (no spring) with viscostatic damping ensures optimum speed and stability. Operational Modes: In Dual-state mode a logic signal selects which of two pressure set points is active. The Hi and Lo set points are adjusted with front panel buttons. In Linear mode a zero to 10 volt input controls pressure and the adjustable set points are ignored. A manual pressure setting can be set by turning the left side potentiometer only. Performance: The MicroAir IV responds to a step of 50% of full scale in less than 0.1 second (typically 20 msec) and maintains an accurate pressure at flow rates between zero and a maximum SCFH depending on the full scale range.