MicroAir IV

Ultra Low Pressure Air Controller, MicroAir IV, with 0-10 volt input

for controlling by PLC or other device and for high speed switching for bump or taper tubing.

Application: Initially designed for bump and taper tubing, the MicroAir IV accepts a logic input to select one of two set points. A zero to 10 VDC analog input to provide any pressure from near zero to full scale instantaneously. For bump or taper tubing, the MicroAir IV allows for a pressure to be switched quickly or varied in a controlled way. It can be connected to your PLC or any controller with the 0-10 volt input. With an added output option you can have closed-loop control.

Operation: The MicroAir IV is connected to normal factory air. It 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:

Dual State mode – using logic signal to select which of two pressure set points is active. The Hi and Lo set points are adjusted with front panel knobs.
Linear mode – A zero to 10 volt input controls pressure. The adjustable set points are ignored.
Manual Setting– 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.

Power: 110/220 VAC 50/60Hz
Dual selectable voltage input 110 or 220 volts

Options:

- Digital LED pressure readout for more precision and easier reading. Better than a 0.1 inch of water resolution.
- OUTPUT Options for closed-loop control:
  - Voltage Pressure output – 0-10 VDC.
  - Current output – 4-20 ma output
- STAND available for 1 or 2 single units or 1 Dual, 3-channel or 4-channel unit
- External Air Pump for use in units with lower than 0-60″ of water. Clean room use.

Available in single channel or multi-channel models (2-channel (Dual), 3-channel or 4-channel model). Check out MultiAir Page.