CNG dispensers use temperature sensors and compensation algorithms to account for density changes in the gas. As temperature rises, gas expands, and its mass per unit volume decreases. Compensation ensures the correct mass is delivered.
The control unit processes temperature data in real time, adjusting calculations for billing accuracy. This prevents underfueling or overcharging customers due to environmental variations.
Temperature compensation is required by many metrology regulations, making it essential for commercial fueling stations that need reliable and fair transactions.