Title Page
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Conducted on
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Prepared by
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Location
Health
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I am medically fit to undertake a CCR dive
Oxygen
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Check Oxygen Tank Content
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Check Oxygen Tank Pressure
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Check CFM Valve - count drop in 10 Bar - should be around 10 seconds
Diluent and Bailout
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Diluent and Bailout Tank(s) - Check Content - O2% and He%
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Diluent and Bailout Tank(s) - Check Preassure
Monox PPO Display
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Check Battery Plug
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Turn on Display - working
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Battery Check
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Check calibration in Air (0.21-0.21-0.21 at sea level)
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If sensors don't align as above - calibrate in Air
Shearwater Computer
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Turn on Display - Working
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Battery Check
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Check calibration in air (0.21-0.21-0.21 at sea level) - if not calibrate in later step
Scrubber Canister
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Filling of Canister done correctly?
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Check - Canister internal O-Rings (Black and Red at bottom and black at top)
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Check O-Ring in Canister lid
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Close Canister - check markings - install snap ring
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Conduct Positive and Negative Pressure Test on Canister
Counter Lungs
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Fit Exhale Counter Lung (Ensure it is dry before fittiing)
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Fit Inhale Counter Lung (Ensure it is dry before fitting)
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Fit counter lung to canister
Loop
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Visual Inspection of Mouthpiece and open/close mechanism
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Check Mushroom Valve
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Conduct Positive and Negative Loop Pressure Test
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Conduct Loop Flow Gas Test
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Loop Counter Lung connections
<br>Gas Line
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ADV/Exhale Counter Lung Connection
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Tank First Stage Conneciton
Electronics
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Cell Housing / Inhale Counter Lung Connection
Positive and Negative Pressure Check
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Conduct 2 minute Positive Pressure Check
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Conduct 2 minute Negative Pressure Check
Calibration
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Oxygen Flush Conducted
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Monox - If Calibration Required - Calibrate
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Shearwater - If Calibration Required - Calibrate
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Ensure all monitors agree
BCD and ADV
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BCD and ADV Connection
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BCD and ADV Operating Control
Pre Breath
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Conduct 5 minute pre-breathe
Safety Checks
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Conduct Pre-Dive Safety Check
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Undertake O2 Flush at 5 meters - check cell readings
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Open Diluent Valve and conduct Dill flush - check cell readings