Meters must meet specific accuracy classes (typically Class 2 for billing) to ensure fair commercial accounting. Measurement Ranges: Defines nominal flow ( Qpcap Q sub p ), minimum flow ( Qicap Q sub i ), and maximum flow ( Qscap Q sub s ) thresholds.
Measure the volume of liquid moving through the system. gost r 51649 2017 skachat pdf
A matched pair that calculates the temperature difference between supply and return. Meters must meet specific accuracy classes (typically Class
