Posting this here as a result from a question that came in under Supporting Documentation (check that post out as well for some additional info!): Signal Calibration: This pertains to the secondary and tertiary devices that convert the meter reads into flow volumes . Specifically, it measures the alignment of flow range conversion with signal span output (typically 4-20mA DC) and SCADA output. The image below helps illustrate the difference in volumetric meter accuracy testing and signal calibration:
In section 2 (water supplied) bullet point 3. is this referring to production meters only? Define Signal Calibration. Record request for section 2, bullet point 4. how far back? Does section 4 (apparent loss), bullet points 1 and 2 referring to customer complaint or high bill tests or random sampling?