Hollis Prism 2

• Audit Title

• Document No.

• Client / Site

• Conducted on

  Date

• Prepared by

• Location
  Address

• Personnel

Setup

• Fill scrubber with zorb

  Date

• Attach head, bladder, yoke and backplate to H-plate and run lines to addition valves

  Yes

  No

  N/A

• Test flow and mushroom valves on DSV

  Yes

  No

  N/A

• Attach counter lungs and DSV to unit

  Yes

  No

  N/A

• Check red o-ring and head o-rings for damage and in place

  Yes

  No

  N/A

• Put moisture pad followed by zorb into bucket and install onto head

  Yes

  No

  N/A

• Check O2 and dil cylinders gas contents.

  Yes

  No

  N/A

Pressure tests

• Positive pressure test. 3-5 min

  Yes

  No

  N/A

• Turn off dil tank and watch gauge for pressure drop. 30 seconds

  Yes

  No

  N/A

• Negative pressure test. 3-5 min

  Yes

  No

  N/A

• Turn on O2 and inject some manually. Then turn off and watch gauge for pressure drop. 30 seconds

  Yes

  No

  N/A

Flush and calibrate

• Turn on secondary computer and listen for solenoid

  Yes

  No

  N/A

• Go to calibrate menu and inject O2 until mV readings stabilise then calibrate.

  Yes

  No

  N/A

• Calibrate the primary HUD

  Yes

  No

  N/A

• Check battery levels

  Yes

  No

  N/A

• Test alternate air source

  Yes

  No

  N/A

Immediate pre-dive

• Install weights

  Yes

  No

  N/A

• Turn on primary HUD and secondary computer

  Yes

  No

  N/A

• Put unit on and ensure oxygen and dil tanks are on

  Yes

  No

  N/A

• Verify loop contents and pre breath unit for 5 minutes

  Yes

  No

  N/A