This course covers how and why keeping a flow metering system within specifications requires a program
of calibration and verification.

Course Prerequisites

• GTA Instructor-Led Training
  o Orifice Meters
  o Ultrasonic Meters
  o Turbine Meters
  o PD Meters
  o Coriolis Meters
  o Cone-Type Meters
  o Gas Quality Measurement
  o Gas Flow Computers

Course Objectives

Upon completion of this course, the student will have received instruction designed to assist him/her in
the following:

• Define the purpose of verification and calibration, including the importance of traceability.
• Present API 21.1 recommendations for calibration and verification.
• Present cost advantages of calibrations.
• Describe what devices on a meter system are calibrated.
• Describe frequency and the basis for routine calibrations, including calibration history trends.
• Describe why flow meter performance changes over time.
• Describe methods or options for calibration of pressure, temperature, differential pressure, EFM,
  and gas chromatographs.
• Describe three natural gas calibration facilities and their unique characteristics.
• Describe a typical calibration process for orifice, ultrasonic, and turbine flow meters, and key
  considerations to be taken into account when calibrating the meters.
• Interpret calibration curves for ultrasonic and turbine flow meters.

Course Outline

1. Verification and Calibration
2. Frequency of Calibration
3. Calibration Options
4. Orifice, Ultrasonic, and Turbine Meter Calibration
5. Transfer Proving

Recommended Resources

• GTA Verification and Calibration Participant Guide and Instructor Presentation.
• API MPMS Chapter 21.1.
• Internet sites and textbooks related to flow meter and instrument verification and calibration.