| Dual Control Although the new Vision hardware is quite different to the Classic Inspiration (in brief: a wristset Primary Display and Head up displays – showing both controllers – replace the separate Master & Slave handsets, an intelligent battery system, built-in deco computation and a host of other new features) in essence, both systems feature two independent control systems: one Master (primary control) and one Slave (back-up control) each with it’s own power supply.
APD CCRs are the ONLY rebreathers with two independent oxygen controllers (patented). The Slave controller, with its own power supply, not only monitors the Master controller but it also monitors the PO2 independently, giving warnings when appropriate (independently) and opens the solenoid (independently) if the PO2 drops to 80% of setpoint. In the event of the Master shutting down, the Slave will instantly take over and control the PO2 in the loop. |