Description
产品介绍:
主要特点
■ 非接触式,装置简便,成本低,免维护
■ SUF-300B固定装置管外夹装型高精度时差式超声波流量计丈量量程比大于400:1,这种极宽的量程使外表能够丈量正常流速的流量,也可丈量因管道和阀门走漏引起的微流量
■ 自动雷诺数补偿,可确保丈量层流、管径大小头和管路扰动区域流量的度
■ 多种显现单位可选
■ 现场输出模块式I/O接口可替换,包含128K数据通讯,4~20mA输出,瞬时流量脉冲信号输出,RS232C,RS485,热电阻RTD (能够接入RTD丈量热流量)
■ SUF-300B固定装置管外夹装型高精度时差式超声波流量计体系的丈量规模包含零流量。读数、可靠,特别在低流量区域,功能大大优于各种文丘利机械式、差压式和涡街式流量计功能
■支撑Hart协议
主要技术指标
变送器
■供电:规范9~28VDC@2.5VA max. 115或230VAC 50/60Hz±15%@5VA max
■流速: -12~ +12m/s(包含零流量)
■输出:所有输出模块均与地及体系地光电阻隔,至多装置两种输出方法可选4~20mA输出、脉冲输出、继电器输出、
RS232C、RS485、数据存贮器
■精度: ±0.5%读数(流速 >0.3m/s,现场标定);1.0%(流速>0.3m/s,不必现场标定);0.003m/s精度差错(当流速
<0.3m/s)(注:定货需指明)
■灵敏度:流量:0.0003m/s
■重复性: 0.01%读数
■支撑协议:规范RS232、RS485、Hart协议(选配)、ModBus协议(选配)
■防护等级: IP67
■变送器型式:分体式
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