General Description

Most gas meters measure flowing, uncorrected volume. TO compare gas volumes and calculate the energy constrained, flowing volume is converted to corrected volume. The value which the flowing volume would assume at base pressure and temperature is calculated in accordance with the gas laws as covered in detail in 1.4 of this document. The corrected volume calculation can be performed by an electronic corrector (EC) using one or more methods specification reports AGA-7, AGA-5, AGA-8 AND NX-19.

Besides the correction function, an EC can provide other benefits such as increased measurement accuracy, easy calibration, configuration flexibility simplified maintenance, data storage and data communication over a suitable communication link (AMR).