NTISthis.com

Evidence Guide: DEFWDV005 - Dive using closed-circuit breathing apparatus (N2O2) in open water to a maximum depth of 40 metres

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

DEFWDV005 - Dive using closed-circuit breathing apparatus (N2O2) in open water to a maximum depth of 40 metres

What evidence can you provide to prove your understanding of each of the following citeria?

Operate an N2O2 compressor/hand-booster pump

  1. Inspect compressor and associated equipment for serviceability
  2. Fit appropriate protective equipment in accordance with organisational procedures
  3. Connect leads and hoses to compressor
  4. Charge gas cylinders to maximum working pressure and record details in relevant logs in accordance with operational procedures
  5. Undertake operator level maintenance on compressor and report defects as required, in accordance with organisational procedures
  6. Re-stow compressor after use in accordance with operational procedures
Inspect compressor and associated equipment for serviceability

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Fit appropriate protective equipment in accordance with organisational procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Connect leads and hoses to compressor

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Charge gas cylinders to maximum working pressure and record details in relevant logs in accordance with operational procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Undertake operator level maintenance on compressor and report defects as required, in accordance with organisational procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Re-stow compressor after use in accordance with operational procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Conduct dive operations

  1. Select, inspect and fit CCBA (N2O2), and conduct apparatus test prior to entering water and in water, in accordance with dive plan
  2. Use CCBA (N2O2) during dive operations and demonstrate relevant dive contingencies in accordance with organisational procedures and dive plan
  3. Undertake de-servicing of CCBA (N2O2) and report defects as required, in accordance with organisational procedures
Select, inspect and fit CCBA (N2O2), and conduct apparatus test prior to entering water and in water, in accordance with dive plan

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Use CCBA (N2O2) during dive operations and demonstrate relevant dive contingencies in accordance with organisational procedures and dive plan

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Undertake de-servicing of CCBA (N2O2) and report defects as required, in accordance with organisational procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

ELEMENTS

PERFORMANCE CRITERIA

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1

Operate an N2O2 compressor/hand-booster pump

1.1

Inspect compressor and associated equipment for serviceability

1.2

Fit appropriate protective equipment in accordance with organisational procedures

1.3

Connect leads and hoses to compressor

1.4

Charge gas cylinders to maximum working pressure and record details in relevant logs in accordance with operational procedures

1.5

Undertake operator level maintenance on compressor and report defects as required, in accordance with organisational procedures

1.6

Re-stow compressor after use in accordance with operational procedures

2

Conduct dive operations

2.1

Select, inspect and fit CCBA (N2O2), and conduct apparatus test prior to entering water and in water, in accordance with dive plan

2.2

Use CCBA (N2O2) during dive operations and demonstrate relevant dive contingencies in accordance with organisational procedures and dive plan

2.3

Undertake de-servicing of CCBA (N2O2) and report defects as required, in accordance with organisational procedures

Required Skills and Knowledge

ELEMENTS

PERFORMANCE CRITERIA

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1

Operate an N2O2 compressor/hand-booster pump

1.1

Inspect compressor and associated equipment for serviceability

1.2

Fit appropriate protective equipment in accordance with organisational procedures

1.3

Connect leads and hoses to compressor

1.4

Charge gas cylinders to maximum working pressure and record details in relevant logs in accordance with operational procedures

1.5

Undertake operator level maintenance on compressor and report defects as required, in accordance with organisational procedures

1.6

Re-stow compressor after use in accordance with operational procedures

2

Conduct dive operations

2.1

Select, inspect and fit CCBA (N2O2), and conduct apparatus test prior to entering water and in water, in accordance with dive plan

2.2

Use CCBA (N2O2) during dive operations and demonstrate relevant dive contingencies in accordance with organisational procedures and dive plan

2.3

Undertake de-servicing of CCBA (N2O2) and report defects as required, in accordance with organisational procedures

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria on at least 15 dives, with diver diving to a depth not greater than 40 metres using closed-circuit breathing apparatus (CCBA) (N2O2) in open water and include:

applying relevant industry standards, and organisational policies and procedures

arranging for others to check equipment

conducting CCBA (N2O2) open water dive operations in accordance with dive plan during the day and at night

conducting inwater apparatus checks

handling nonfunctional equipment items

maintaining equipment during dive operations

monitoring CCBA (N2O2) equipment and gauges

operating an N2O2 compressor/handbooster pump in accordance with manufacturer specifications.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and include knowledge of:

CCBA (N2O2) characteristics and limitations

CCBA (N2O2) dive equipment specifications and limitations

dive physics

dive physiology and medicine including:

heat and cold illnesses

compression illnesses

decompression illnesses

diving descent and ascent techniques

general diving safety awareness including:

diving in harbours

diving in tidal waters, currents and tides

diving on and/or near a ship’s bottom

lost/separated

entrapment/foul lines

marine animal threats

pollution/weeds

working in confined spaces

hazards of nitrox

relevant industry standards, and organisational policies and procedures

relevant occupational/diving safety awareness

safe operating ranges for airsupplies.

Range Statement

Range is restricted to essential operating conditions and any other variables essential to the work environment.

Non-essential conditions may be found in the Companion Volume Implementation Guide.