电磁流量计MagneticFlowmeter.PDF

上海曹欣仪器仪表有限公司 021 电磁流量计Magnetic Flowmeter 一般规格说明 General Specifications ETFM 系列电磁流量计具有优良的结构设计. 双腔结构使电子系统免于周围环境干扰.它采用低频 方波励磁,有良好的输出稳定性.它的励磁方式和多 种衬里,决定了它有广泛的应用范围. ETFM is the advanced engineering designed magnetic flowmeter, it has a dual cavity housing providing ease of wiring while isolating the electronics from the environment.ETFM continues the use of low frequency excitation,which provides noise free output. EFTM excitation method and multiform lining allow this magnetic flowmeter to be applied to an even greater range of applications. ◆特点 FEATURES ▲ 快速响应,并有好的稳定性 Fast response and high stability. ▲ 高精度,特别标定可达 0.2% High Accuracy,,0.2% for flowrate ▲ 双腔结构把电气部分于接线端隔开 Dual cavity housing to separate electronics part from wiring part. ▲ 超低 EMI 开关电源,适用电源电压范围宽. AC power supply common use (85~265vac). ▲ 高清晰度背光,高温型 LCD 显示,便于操作 High visible backlit LCD for easy operation. ▲ 具有 RS485,RS232,HART,PROFIBUS,MODBUS 等总 线数据通讯输出. Communication:e.g.RS485,RS232C,HART,Prof ibus, MODBUS etc. ▲ 能进行双向流量测量,双向总量累计 BI-direction measuring and totalizing. ◆ 性能指标 STANDARD SPECIFICATIONS 转换器 Coverter ▲ 流量测量范围 Measuring Range 与传感器配套,流量测量范围上限值的流速 可达 0.3m/s~15m/s 范围内选定,下限值的流速可 isolated transistor open collector frequency 为上限值的 1%. output ranged from 1 to 5000hz,The external Dc The velocity range is 0.3m/s to 15m/s.The power supply should not exceed 35V and maximum minimum measurable speed can be one percent(1%) collector current is 250mA. of the full range . ▲ 脉冲输出 Pulse Output ▲ 电流输出Analog Output 输出脉冲上限可达 5000cp/s.脉冲当量可设定. 电流输出信号:全隔离 0~10mA/4~20mA 如果脉冲频率