1) Class 1 water meters (only applicable to Q3≥100m3/h water meters) in the water temperature range from 0.1℃ to 30℃, the maximum allowable error of water meters in the high zone (Q2≤Q≤Q4) is ±1%; The low area (Q1≤Q < Q2) was ±3%. When the water temperature exceeds 30℃, the maximum allowable error of the water meter in the high zone is ±2%. The low area was still ±3%.
2) Class 2 water meters (applicable to Q3 < 100m3/h, also applicable to Q3≥100m3/h water meters) within the range of water temperature 0.1℃ to 30℃, the maximum allowable error of water meters in the high zone (Q2≤Q≤Q4) is ±2%; The low area (Q1≤Q < Q2) was ±5%. When the water temperature exceeds 30℃, the maximum allowable error of the water meter in the high zone is ±3%. The low zone was still ±5%. The accuracy level of the conventional ultrasonic water meter of Lanry is 2.
Post time: Sep-13-2022