目 录
1 范围 ·······································································。··············。···…… (1)
2 引用文献 ····························。·······················································…… (1)
3 概述 ····················。··················。··············。·························。·········…… (1)
4计量性能要求 ·················。·············。·······································,······…… (1)
4.1 内部晶振频率准确度A ············································。··················…… (1)
4.2 输出时间伺隔T························································。···············…… (1)
4.3 发号特性 ·················································································…… (1)
4.4存储费率和计费金额 ·······················。··········。······················、··。·····……(1)
4.5 输出馈电电压、电流及最大允许误差 ·.................................................. (1)
4.6 电气特性 ······························································。··················…… (1)
5通用技术要求 ···············································。······························……(2)
5.1外观及标志 ······························,···································。。··········…… (2)
5.2 功能 ···········································。·······································。···…… (2)
6计量器具控制 ·············································································。……(2)
6.1检定条件 ························。·······································。···。············…… (2)
6.2 检定设备 ···································。····································,········…… (2)
6.3 检定项目 ············································································。····…… (2)
6.4 检定方法 ············。。··········································。························…… (2)
6.5检定结果的处理 ···················································,····················……(4)
6.6 检定周期 ···················。·····························································…… (4)
附录A 发号技术要求·····················。··················································…… (5)
附录B 电气性能指标的检定方法······················。··································…… (6)
附录C 检定证书 (内页)格式···············。·····················。······················……(7)
单机型和集中管理分散型
电话计费器检定仪检定规程
1 范围
本规程适用于各种单机型和集中管理分散型电话计费器检定仪 (以下简称检定仪
的首次检定、后续检定及使用中检验。
2 引用文献
本规程引用下列文献:
JJF 1001-1998 《通用计量术语及定义》
JJF 1059-1999 《测量不确定度评定与表示》
JJG 107-2002 《单机型和集中管理分散计费型电话计时计费器》检定规程
GB/T 15279-1994 《自动电话机技术条件》
YD/T 1004-1999 《多路电话计费系统技术要求及测试方法》
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 概述
检定仪是用于检定单机型和集中管理分散计费型电话计时计费器 (以下简称计
器)的专用仪器。其内部设计了模拟程控交换电路,使用微处理器进行定时和控制,
够输出标准计费信号,通过与计费器进行比较,完成对计费器的检定。
4 计f性能要求
4.1 内部晶振频率准确度A: 5x10-So
4.2 输出时间间隔T:范围:O.ls一1200s,
步进间隔:0.1s,
最大允许误差:土(TxA+0.1),。