Sydney Dive Academy - duplicate

• Document No.

• Conducted on

  Date

• Prepared by

• Location
  Address

SCRUBBER

• Scrubber time remaining

O2 and Diluent gas analysis

• Oxygen percentage

• Diluent percentage

Mushroom valves

• Check inhalation mushroom valve

• Check exhalation mushroom valve

Sensors

• Turn on secondary and record O2 millivolt values in air (8.5mv - 14mv)

• Sensor 1

• Sensor 2

• Sensor 3

O2 check

• O2 valve turn on then off

• Check for pressure drop (30 SECONDS)

• Open O2 valve

Negative pressure test

• Open DSV/BOV and collapse counter lungs

• Close DSV/BOV

• Check for leaks with PO2 readings (CHECK FOR 1 MINUTE)

Positive pressure test

• Close OPV and fill with O2

• OPV engages, check for leaks (CHECK FOR 1 MINUTE)

• Evacuate loop and close DSV/BOV

O2 loop flush

• Close OPV and fill with O2

• OPV engages

• Open DSV/BOV and close DSV/BOV

• Record oxygen pressure

Calibration

• Calibrate secondary display (98%)

• Check and record internal volts (3.6 volt battery)

• RECORD MILLIVOLT READINGS (4.76 x air)
  

• Sensor 1 (40-67mv)

• Sensor 2 (40-67mv)

• Sensor 3 (40-67mv)

• Turn primary LED on (all 3 blink red and green)

• 3 rapid presses in 1 second to calibrate (red for 5 seconds)

Solenoid check

• Set point to high, greater than 1 and listen for solenoid firing

• Check and record external voltage > 6volts (4.5)

Set points

• Menu to dive set up

• Set and record LOW set point

• Set and record HIGH set point

• Return set point to .19

Diluent checks

• Diluent valve turn on then off

• Check for pressure drop (30 SECONDS)

• Open Diluent valve

ADV and alt air source checks

• Check BOV operation

• Check bailout operation,leaks and fill pressure

• ADV breathe and drop loop PO2

• Check BCD inflate and deflate

• Record Diluent pressure

Completion

• Complete pre dive safety checks and per breathe OR
  Close O2 and Diluent valves
  Turn off primary and secondary displays

• Add signature

  Sign