• Effeciently controls the inlet valve and blow-off valve when the compressor starts and stops.
• During steady operation, controls the inlet valve so that the amount of discharged compressed air becomes constant (flow control)
• Surging: Load decreases, the amount of discharge flow and pressure drop, and a limit is exceeded, possibly destroying the compressor.

In such cases, the YS170 Single-loop Controller switches smoothly and automatically between flow control and pressure control to prevent surging.

• Selector Control (YS Specific Algorithm)
  Allows for automatic switching between two differing control factors, flow volume and pressure.
• High Speed Control Interval (50 msec)
  Keeps up with fast process changes, enables smooth switching control.
• User Programming
  Enables start-stop sequences and can be customized in various ways for compressors.