KL Training Academy
Ex 03 & 04 | Gas and vapours
Ex
instrumentation (Ex i) equipment Installation,
inspection and maintenance
Why Ex 03 & 04 Matters
Intrinsically Safe (IS) systems demand specialised knowledge. The Ex 03 & 04 qualification proves your competence in installing, inspecting, and maintaining IS equipment in hazardous gas atmospheres.
Recognised globally across oil & gas, petrochemical, and instrumentation sectors, this certification opens doors to specialised roles while ensuring the safety of people, plant, and processes.
Course Overview
Course Overview
The CompEx Ex03 & Ex04 qualification is designed for personnel working with intrinsically safe (Ex i) instrumentation systems in hazardous areas where explosive atmospheres may arise due to gases and vapours.
This course focuses on the installation, inspection, and maintenance of Ex intrinsically safe equipment, equipping participants with both theoretical knowledge and practical skills in accordance with IEC standards.
What You'll Learn
Course Objectives
Upon successful completion, candidates will demonstrate:
Theoretical Understanding
- Understanding of relevant IEC standards, directives, national regulations, and guidance for hazardous areas involving explosive gas atmospheres
- Knowledge of hazardous area classification, including the influence of gas and vapour properties on zone types and extent
- Awareness of protection concepts for both non-intrinsically safe and intrinsically safe equipment
- Understanding of Ex certification, equipment marking, and key protection method-Ex 'i', and other applicable techniques
Practical Competence
- Ability to select and install non-intrinsically safe and intrinsically safe equipment in accordance with IEC standards
- Competence in carrying out inspection and maintenance using IEC-compliant inspection tables and procedures
- Ability to interpret technical documentation and test results accurately
- Ensuring compliance with safety requirements across installation, inspection, and maintenance activities, including effective fault identification and reporting
who is this for
This Course is Suitable for
Designed for experienced professionals working with Ex equipment in hazardous environments
Practicing Electrical technicians/engineers
Individuals involved in the Installation, Testing, Inspection, and Maintenance of Ex electrical equipment
Personnel with prior hands-on experience in hazardous areas
Program Structure
Course Details
Duration
3 Days
Format
Theory and Practical
Certification
CompEx Certificate in Core Competence (valid for 5 years)
Assessment
Theory Examination: MCQ — 60 questions — 1 hour 30 minutes
Practical Examination:
Ex03: Preparation and installation of Ex (IS) equipment — 3 hours
Ex04: Inspection and maintenance of Ex (IS) equipment — 1 hour 15 minutes
CompEx Certified — Core Competence
Upon successful completion, you will receive the internationally recognized CompEx Certificate in Core Competence — valid for 5 years and accepted across the global oil & gas, petrochemical, pharmaceutical, and mining industries.
Your certification is registered on the CompEx database, verifiable worldwide, and demonstrates your ability to install, inspect, and maintain intrinsically safe equipment in hazardous gas atmospheres.
Ready to Get Certified?
Take the next step in your hazardous area competency journey with CompEx Ex 03 & 04 certification from KL Training Academy.