Required skills include

Ability to

access workplace information to identify production requirements

select fit and use personal protective clothing andor equipment

confirm supply of necessary materials and services

confirm equipment status and condition

start up from empty and start up from full

maintain required levels in the crystallisers

follow cooling and reheating profiles

start up and operate in both automatic and manual modes

monitor the process and equipment operation to maintain the process within the required parameters including monitoring

throughput

loads on crystalliser drives

sugar crystal size and distribution

massecuite conductivity

massecuite dilution rates

end of cooling and reheating temperatures

stocks of C massecuite to match pan stage throughput

equipment condition

detect and report water leaks from crystalliser coils

take corrective action in response to outofspecification results

report andor record corrective action as required

record workplace information

demonstrate shift handover procedure

shut down equipment in response to an emergency situation

demonstrate an operational shut down procedure

prepare equipment for cleaningmaintenance

maintain work area to meet housekeeping standards

Required knowledge includes

Knowledge of

purpose and basic principles of crystallisation including a basic understanding of crystal growth and super saturation of solutions

the effect of C molasses dilution on C massecuite viscosity

the effect on C molasses purity of variation in

end of cooling and reheating temperatures

residence time

the effect of C massecuite conditioning on low grade fugal performance

the circuit flow of this process and relationship to related processes

equipment purpose and basic operating principles of crystallization equipment

the risks and consequences of pipe failure related to massecuite decomposition

services used

operating requirements and parameters

requirements when starting up full crystallisers containing cold massecuite

requirements when shutting down full crystallisers containing hot massecuite

significance and method of monitoring control points within the process

common causes of variation and corrective action required

hazards and controls

lock out and tag out procedures

shut down sequence including massecuite pumps and reheaters

requirements of both operational and long term shut down conditions to ensure the equipment is left in a safe state for the period of the shutdown and to minimise any delays in future start up

procedures and responsibility for reporting problems

environmental issues and controls

waste handling requirements and procedures

recording requirements and procedures

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria required skills and knowledge range statement and the Assessment Guidelines for the Training Package

Overview of assessment

Assessment must be carried out in a manner that recognises the cultural and literacy requirements of the assessee and is appropriate to the work performed

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Evidence of ability to

start up from empty or from full in manual and automatic modes

monitor the process and equipment operation

detect and report water leaks from crystalliser coils

demonstrate shift handover procedure

shut down equipment in response to an emergency situation

demonstrate an operational shut down procedure

Context of and specific resources for assessment

Assessment must occur in a real or simulated workplace where the assessee has access to

Operating procedures and related advice on equipment operation including advice on safe work practices and environmental requirements

Personal protective clothing and equipment

Product and process specifications and operating parameters

Crystalliser station equipment

Materials including C massecuite and services as required

Material Safety Data Sheets where appropriate

Housekeeping standards and procedures

Advice on environmental management issues relevant to work responsibilities

Workplace information recording systems requirements and procedures

They may also require access to

Cleaning procedures sampling schedule and procedures and maintenance procedures and tools depending on the work requirements

Method of assessment

Other units of competency relevant to the work role should be assessed in conjunction with this unit This may include

SUGA Collect and prepare samples

SUG202A Collect and prepare samples

SUGA Perform standard tests on a cane sample

SUG213A Perform standard tests on a cane sample

FDFOPA Operate a process control interface

FDFOP2030A Operate a process control interface.

Guidance information for assessment

To ensure consistency in ones performance competency should be demonstrated on more than one occasion over a period of time in order to cover a variety of circumstances cases and responsibilities and where possible over a number of assessment activities

Policies and procedures

Codes of practice

Workplace information

Crystalliser station

Equipment status

Equipment operation and monitoring

Services

Tests

Process monitoring

Control points

Teamwork

Information systems