Which feature is essential to ensure accurate measurement of dispensed propane?

Which feature is essential to ensure accurate measurement of dispensed propane?

• A. Metering system
• B. Breakaway device
• C. Pressure relief valve
• D. Grounding electrode

Answer: (A)

The essential feature is the metering system because it directly measures how much propane actually flows into the customer’s tank. A properly calibrated meter records the volume as it moves through the dispenser, and it can be maintained and periodically verified to keep readings accurate. In practice, meters may include temperature compensation and a totalizer so the amount charged matches the true quantity delivered, preventing under- or over-charging and keeping inventory correct. The other devices serve safety or electrical protection—protecting against spills if a coupling separates, preventing overpressure, and dissipating static electricity—but they do not measure dispensed volume.

The essential feature is the metering system because it directly measures how much propane actually flows into the customer’s tank. A properly calibrated meter records the volume as it moves through the dispenser, and it can be maintained and periodically verified to keep readings accurate. In practice, meters may include temperature compensation and a totalizer so the amount charged matches the true quantity delivered, preventing under- or over-charging and keeping inventory correct. The other devices serve safety or electrical protection—protecting against spills if a coupling separates, preventing overpressure, and dissipating static electricity—but they do not measure dispensed volume.