IC Card Water Meter Prepaid Smart Digital DN15
Product Description
（Ⅰ）Relative error
Maximum permissible error between Q1 and Q2(excluded) is ±5% in flow low area.
When the water temperature is not higher than 30℃，maximum permissible error between Q2 and Q4 (included) is ±2% in folw high area.
When the water temperature is higher than 30℃,maximum permissible error between Q2 and Q4(included) is ±3% in flow high area.
（Ⅱ）Working temperature:cold water(0.1~30)℃
（Ⅲ）Operating ambient temperature:(5~55)℃
（Ⅳ）Storage environmental temperature:(-5~55)℃