Alicat MC Series Mass Flow Controller - Manual (Page 29)

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FLOW
Process
Vacuum Source
Inverse Mass Flow (or Volumetric Flow)Control with Vacuum
Process Gas Source
Vacuum Source
Flowing Absolute Pressure Control
Back-Pressure Control
Positive Pressure Control
FLOW
Process Gas Source
Vacuum Source
Bidirectional Mass Flow (or Volumetric Flow)Control
FLOW
FLOW
Closed Process
Gas Source
Atmosphere or Vacuum
Dead-Ended Absolute Pressure Control
FLOW