SSI SCR Extended Range

Course Overview & Training Objectives

SSI SCR Extended Range expands semi-closed rebreather operations into limited decompression diving up to a depth of 40 meters. Students learn multi-gas switch planning, running open-circuit bailout gas calculations, and executing up to 25 minutes of accelerated decompression. The curriculum focuses on managing decompression obligations while monitoring dual electronics on SCR units.

Operational Envelope

• Max Depth: 40m (130ft)
• Decompression: Max 25 min
• Breathing Gases: Bottom Nitrox mix with one AL80 deco stage up to 100% O2
• Equipment Rig: SCR unit + 1 Stage

Course Structure & Training Requirements

• Course Duration: 4 to 5 Days
• Required Training Dives: 6 in-water dives
• Classroom & Theory: 12 hours instruction

Entry Gates & Prerequisites

SCR Diving + Deep Diving + 50 logged dives