Meters Low Pressure Diaphragm & Rotary Meters (CMET:1)

Meters Low Pressure Diaphragm & Rotary Meters (CMET:1)

To provide operatives with knowledge and skill relating to the design, selection, installation, exchange, removal and commissioning of low pressure fed diaphragm and rotary meters.

Candidates must hold a current certificate of competence in Core Commercial Gas Safety, Pipework (ICPN:1) and Tightness Testing (TPCP:1) before they can undertake the meter assessment.

Course Duration
1 day (½ day training and ½ day assessment).

Maximum Number
4 persons

Training Aids
Lecture notes, audio visual presentation and a range of gas meter installations.

The learner will be assessed by a written and practical test in line with ACS scheme requirements.

On successful completion of the course candidates will receive CMET:1 Gas Meters certification.

Additional Information
Meeting the needs and expectations of service users is of the highest priority to our staff. Therefore if you have any concerns or wish to make a comment about the service please contact:


On successful completion of this course learners will be able to demonstrate competence in relation to:

  • The design and selection of Low Pressure Fed Meters
  • Meter installation, removal and exchange
  • Meter commissioning and maintenance
  • Checking / setting meter regulators
  • Emergency notices and warning labels
  • Sealing of regulators and positioning of emergency control valves
  • Fitting, testing and commissioning of low pressure regulators and valves


  • Gas safety regulations, British Standards and manufacturers
  • Instructions
  • Installation requirements, suitable positions, suitable connections
  • Labels and notices
  • Meter regulators, operation and checking
  • Tightness testing and purging