电磁流量计对温度的要求

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ics17.120.10 N12 中华人民共和国国家标准 GB/T18659-2002 idtISO9104:1991 封闭管道中导电液体流量的测量 电磁流量计的性能评定方法 Measurementoffluidflowinclosedconduits- Methodsofevaluatingtheperformanceof electromagneticflow-metersforliquids 2002一02一22发布2002一08一01实施 中华人民共和国发布 国家质量监督检验检疫总局 GB/T18659-2002 目次 前言····························，··。·······························，···········································……t ISO前言·········。···········。·································。··············································……I 引言··········。·············。········。·····················”····················································。…m 1范围·············。···································。·······················································……1 2引用标准············。·························。····························································……1 3定义········································。。··················。··············。·····························……2 4基本试验程序····································。······················································……2 4.1一般要求·。························································································、····……3 4.2安装·····。······················。·········································································……3 4.3试验液体···················。·························································。·················……4 4.4试验环境条件······················································。··································……4 4.5试验期间正常校准条件··················································
(电磁流量计对温度的要求)

不锈钢涂覆碳化钨
聚四氟乙烯F4
聚全氟乙丙烯F46
聚氟合乙烯FS
聚录丁橡胶
聚氨脂橡胶
4－20Madc,负载≤750ω
0-3khz,5v有源，可变脉宽，输出高端有效频率
220VAC±10％
24VDC±10％
一体型结构
分体型结构
防爆一体型结构
(电磁流量计对温度的要求)

电极选择图示：
SUS316L不锈钢电极
被测介质衬里材料选择图示：
橡胶衬里示意图
PO衬里示意图
四氟衬里示意图
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(电磁流量计对温度的要求)

≤1.6MPa
防护等级:
传感器转换器
材质:
探头材质为304不锈钢,电极材质为316不锈钢,绝缘层为PTFE.
电气接口:
M20×1.5,1/2〞NPT
显示方式:
标准双线液晶显示,可同时显示瞬时和累积流量。
电源:
220VAC50HZ24VDC
防爆等级：
Exd[ia]iamllCT5
信号输出：
1、开关量可设为：脉冲输出（最高1000HZ）；
高/低流量报警；
空管报警；
流量方向示意；
故障报警；
2、电流输出：4-20mA输出。
组态方式：
1、通过三个手动键现场组态。
(电磁流量计对温度的要求)

二、电池供电电磁流量计的主要技术参数
?公称通径：DN10-DN1200
DN150-DN6000（可选插入式电磁流量计）
?公称压力：0.6～4.0Mpa（特殊压力可以定制）
?精确度：±0.2%、±0.5%
?测量范围：0.01～10m/s
?测量介质（电导率）：〉20μs/cm
?介质温度：-10℃～160℃
?环境温度：-10℃～60℃
?环境湿度：≤95%（相对湿度）
?供电方式：3.6V/DC内置锂电池供电，连续工作时间5-10年（3.6V、12V、220V）
?电极材料：316L不锈钢，HC、HB、钛、钽、铂、铱合金
?衬里材料：氯丁橡胶、聚氨脂橡胶、PTFE、F46、PFA
?连接方式：法兰式、插入式、夹持式（可选）
(电磁流量计对温度的要求)

(电磁流量计对温度的要求)

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