目 录
1 范围 ··························································································…… (1)
2 引用文献 ····················································································…… (1)
3 术语 ························,·································································…… (1)
3.1 IC卡冷水水表 ···········································································…… (1)
3.2 基表 ·······················································································…… (1)
3.3 控制器 ····················································································…… (1)
3.4 欠压值 ··············································································…… (1)
4 概述 ························。·································································…… (1)
4.1 工作原理 ·················································································…… (1)
4.2 结构 ·······················································································…… (1)
5 计量性能要求 ··············································································…… (2)
5.1 最大允许误差 ····················。······················································…… (2)
5.2 控制器显示误差 ········································································…… (2)
5.3 计量等级 ·················································································…… (2)
5.4 密封性 ····················································································…… (2)
6 通用技术要求 ··,····················································,······················…… (2)
6.1 外观 ····································································,··················…… (2)
6.2 封印 ·······················································································…… (2)
6.3 标志 ········,,························································...................... (2)
6.4 指示装置 ·················································································…… (2)
6.5 直流电源电压 ···········································································…… (2)
6.6 控制器基本功能 ····························。·········································…… (2)
7 计量器具控制 ··············································································…… (3)
7.1 检定条件 ·················································································…… (3)
7.2 检定项目 ·················································································…… (3)
7.3 检定方法 ·················································································…… (3)
7.4 检定结果的处理 ········································································…… (5)
7.5 检定周期 ·················································································…… (5)
IC卡冷水水表计量检测规范
范围
本规范仅适用于公称口径15mm - 40mm IC卡冷水水表的首次检定、后续检定和使
用中检定 。
2 引用文献
本规范引用下列文献
GB/T778.1一1996《冷水水表》
GB/T778.2-1996《冷水水表》
GB/T778.3-1996《冷水水表》
CJ/T133-2001 ((IC卡冷水水表》
JJG162-1985《水表及其试验装置》(水表部分)
使用本规程时,应注意使用上述引用文献的现行有效版本。
3 术语
3.1 IC卡冷水水表
以带有发信装置的冷水水表为计量基表,以IC卡等介质为媒体,加装控制器和电
控阀所组成的一种具有预付费功能的水量计量仪表。
3.2 基 表
IC卡水表所采用的带有发讯装置的冷水水表。
3.3 控制器
用于水量显示和控制的装置。
3.4 欠压值
保证控制器正常工作设定的最低电压值。