The controller is fixed on the rear side of the Rotameter which can be replaced in your existing anaesthesia unit.
S.O.R.C. System ensures minimum 25% O2 in the mixture. Fine adjustment of the needle valves ensures proper control over the outgoing gas mixture.

Control Valve:
At inlet on the base of the front side of the instrument.

Inlet Connection:
At back, 7/16 inch UNF and 1/2 inch UNF (for O2 & N2O respectively), threaded male end.

Outlet Connection:
Female nipple end at top right side of the frame.

Working Circuit:
Selected gas flows through the valve spindle to the desired chamber of S.O.R.C. And returns to the selected Rotameter Tube. After all the gases get mixed up in the upper Rotameter block the mixed gas flow through outlet point. The complete pneumatic device is doing these systems. Maximum capacity level of oxygen Rotameter tube is 10 liters and Nitrous oxide tube is 12 liters. The moment 0.6 liter (+/-) 0.2 liter Oxygen tube is released then automatically the former drives the Nitrous Oxide according to the ratio. The ratio is 25% Oxygen of the total gas mixture.