产品介绍
The RVL series meter utilizes vortex-shedding technology to provide a repeatable flow measurement accurate to ±1% of full scale. The meter has no moving parts, and any potential for fluid contamination is eliminated by the meter's corrosion-resistant all plastic construction. The meter includes a compact 2-wire (4-20 mA) or 3-wire (0-5 Vdc or pulse) transmitter, contained within a conveniently replaceable plug-in electronics module. All electronics are housed in a corrosion-resistant enclosure. Unlike meters containing metal or moving parts, the RVL is perfect for aggressive or easily contaminated fluids. Applications range from ultra-pure water to highly corrosive chemicals and slurries. Units may be re-calibrated and the meter output span reprogrammed in the field.","Operation of the RVL vortex flow meter is based on the vortex shedding principle. As fluid moves around a body, vortices (eddies) are formed and move downstream. They form alternately, from one side to the other, causing pressure fluctuations. These are sensed by a piezoelectric crystal in the sensor tube, and are converted to a 4-20 mA, 0-5 Vdc or pulse signal. The frequency of the vortices is directly proportional to the flow rate. This results in extremely accurate and repeatable measurements using no moving parts.
RVL Series 流量计技术参数
规格项 | 参数值 | 勾选搜索替代 |
性 能 | ||
精度 | 2 ±% | |
特 性 | ||
工作压力 | 20 psi (14.08 m H2O) | |
液体体积流量 | 0.60 to 300.00 GPM (2.27 to 1136 L/min) | |
测量介质 | Liquid | |
特征 | Programmable; Suspended Solids / Slurries | |
电 气 | ||
电气输出 | Current; Frequency; Voltage | |
连 接 & 显 示 | ||
接口选项 | Serial/Digital | |
环 境 | ||
工作温度 | ? to 203 F (? to 95 C) | |
物 理 | ||
终端配件 | Flanged; In-line Threaded ; Tube End / Hose Nipple | |
管道直径 | 0.50 to 3.00 inch (12.7 to 76.2 mm) | |
更多技术信息 | ||
仪表类型 | Volumetric Flow Meter | |
更多规格 | ||
腐蚀性介质 | Aggressive / Corrosive Process Media? | |
审核认证 | Underwriters Laboratory; Canadian Standards Association; CE | |
测量技术 | Vortex (Shedding) Meter | |
安装 | In-line | |
产品类别 | Flow Meters |
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