View Unit : Checking and Calibrating Process Control Instrumentation

Unit

Unit Reference Number

H/600/5625

Qualification Framework

QCF

Title

Checking and Calibrating Process Control Instrumentation

Unit Level

Level 3

Unit Sub Level

None

Guided Learning Hours

287

Unit Credit Value

139

Date of Withdrawal

SSAs

4.1 Engineering

Unit Grading Structure

Pass

Assessment Guidance

This unit must be assessed in a work environment and must be assessed in accordance with the ‘Common Requirements for National Vocational Qualifications (NVQ) in the QCF’ which can be downloaded from Semta’s website:

http://www.semta.org.uk/training_providers__awarding/national_occupational_standard/qca_assessment_requirements.aspx

Additional assessment requirements have been published by Semta. These additional assessment requirements are set down in Semta’s Engineering Technical Support Level 3 unit assessment strategy which can be downloaded from Semta’s website: http://www.semta.org.uk/training_providers__awarding/national_occupational_standard/qca_assessment_requirements.aspx

View Unit's Qualifications

Learning Outcomes and Assessment Criteria

Learning Outcome - The learner will:		Assessment Criterion - The learner can:
1	1a. Check and calibrate process control instrumentation	1.1	Work safely at all times, complying with health and safety and other relevant regulations and guidelines
		1.2	Prepare for the calibration activities, by carrying out all of the following: • ensure that the work area is in a safe and tidy condition • ensure that environmental conditions are suitable for the calibration checks being made (such as temperature, cleanliness, humidity) • obtain and use the correct quality control documentation (such as calibration records, equipment specifications) • obtain and check the general condition of the instrumentation to be calibrated • obtain appropriate calibration/reference equipment for the job in hand • leave the work area in a safe and tidy condition on completion of the activities
		1.3	Obtain and use the correct equipment to carry out the calibration activities
		1.4	Use six of the following types of equipment during the calibration activities: • standard test gauges • dead weight tester • manometer • digital pressure indicators • hydraulic/portable pressure pump • oil/water bath • hydrometer • audio amplifiers/chambers • sand bath • electronic weight test calibrator • speed measuring devices • calibrated weights • calibrated flow meter • ultraviolet light source • smoke canisters • heat guns • appropriate test gases • reference/workshop potentiometers • signal generators • oscilloscope • insulation testers • analogue and digital meters • phase testers • current injection devices • logic probes • other specific test equipment
		1.5	Identify and confirm the calibration checks to be made and acceptance criteria to be used
		1.6	Correctly set up, check and calibrate the equipment, using approved techniques and procedures
2	1b. Check and calibrate process control instrumentation (continued)	2.1	Carry out the calibration of process control equipment, to include four of the following types of instruments: • pressure • flow (fluid, gas or air) • level • temperature/humidity • speed measurement • vibration monitoring • load/weighing/strain gauges • gas detection/monitoring • fire detection • fiscal metering • alarm and trip • analysers • recorders and indicators • sound/acoustic measurement • radiation detection • instrument controllers
		2.2	Test and calibrate process control instrumentation, to include carrying out all of the following: • obtaining calibration parameters from data records • connecting up power supplies, test and calibration equipment • following specified or appropriate calibration procedures • ensuring that any special operating conditions are taken into account (such as liquid level correction) • calibrating to manufacturer’s procedures and specifications • recording calibration results accurately and legibly in the appropriate format • identifying and recording out-of-specification instruments • taking appropriate action in respect of instruments that fail to meet calibration specifications • diagnosing faults during the calibration process (where appropriate)
		2.3	Record the results of the calibration checks in the appropriate format
		2.4	Complete the calibration documentation, to include one from the following, and pass to the appropriate people: • calibration report • ‘equipment withdrawal from service’ report • job card • customer specific documentation
		2.5	Where appropriate, apply suitable identification to the equipment, stating current date(s) of calibration
		2.6	Deal promptly and effectively with problems within their control and report those that cannot be solved
3	2a. Know how to check and calibrate process control instrumentation	3.1	Describe the specific safety precautions to be taken when checking and calibrating process control instrumentation (such as specific legislation or regulations governing the activities or work area, safe working practices and procedures to be adopted, general workshop safety practice)
		3.2	Describe the health and safety requirements of the work area in which they are carrying out the calibration activities, and the responsibility these requirements place on them
		3.3	Describe the COSHH regulations with regard to the substances used in the calibration process
		3.4	Describe the hazards associated with calibrating process control instrumentation, and how they can be minimised
		3.5	Describe the appropriate personal protective equipment and clothing to be worn during the calibration activities
		3.6	Explain how and where to obtain the required calibration specifications, and how to check that they are current and complete
		3.7	Describe the general principles of quality assurance systems and procedures
		3.8	Describe the basic operating principles of the instruments that are being calibrated
		3.9	Describe the preparations that need to be undertaken before the equipment is checked and calibrated (such as cleaned and free from all service contaminants, visually inspected for damage or missing parts)
4	2b. Know how to check and calibrate process control instrumentation (continued)	4.1	Describe the need to take note of any special operating conditions (such as liquid level correction, calibration medium)
		4.2	Describe the effects that the environment may have on the calibration activities (such as where precision measurements are concerned)
		4.3	Describe the use of temperature-controlled standards rooms for calibration activities
		4.4	Describe the application and uses of the tools and equipment to calibrate process control instruments (such as standard test gauges, dead weight testers, manometers, calibrated weights, analogue and digital meters, logic probes, signal generators, etc)
		4.5	Describe the typical defects and variations that can be found on the instruments, and how to identify them
		4.6	Describe the need to carry out the calibration checks, and to record the results using the appropriate documentation
		4.7	Describe the procedure to be followed when instruments do not meet calibration requirements
		4.8	Describe the importance of completing calibration documentation, what needs to be recorded and where records are kept
		4.9	Describe the extent of their own responsibility and to whom they should report if they have any problems that they cannot resolve

Equivalent Units

There are no equivalences to display.