For applications with only little differential pressure, Bronkhorst High-Tech developed the LOW-ΔP-FLOW series mass flow meters and controllers. In these instruments, the flow resistance is minimized by a different sensor and by-pass construction.","lowest range 0,2 ... 10 mln\/min.highest range 20 ... 1000 m3n\/h.","The control of mass flow with small pressure difference comprises the LOW-ΔP-FLOW Mass Flow Controller in compact construction; control valve and flow meter are integrated in one body. The maximum flow in these compact models is 1...50 ln\/min Air, depending on the operating conditions. For the control of higher flow rates at very low differential pressures Bronkhorst High-Tech has devised special control valves with pressure compensation bellows (types F-004AC\/F-004AI\/F-004BI). These control valves are piped on to the flow meter while the electronic PI-control function is an integral part of the flow meter.","\"Multibus\" Digital Mass Flow Meters\/Controllers","Bronkhorst High-Tech developed their digital instruments according to the flexible \"multibus\" concept, due to which the instruments can be equipped with on-board interface board with DeviceNetTM, Profibus-DP®, Modbus or FLOW-BUS protocol. More information about digital \"multibus\" communication.","Features:","Applications:
特性
- 极低压降
- 用于腐蚀性气体，使用寿命更长
- 降低污染的风险
- 易于清洁
- 电解抛光不锈钢润湿部件
- 可与控制阀组成一个完整，紧凑的控制回路
- 可提供工业(ip65防风雨)外壳
- 大气条件下的环境空气取样
- 泄漏率试验
- 在低压天然气分配系统中，天然气消耗的测量
- 燃烧器控制
- 非常低的压降
- 容易清洁
- 电抛光不锈钢浸湿部件
- 可与控制阀一起构成一个完整、紧凑的控制回路
- 提供工业（IP65防风雨）外壳
- 在大气条件下的环境空气取样
- 泄漏率测试
技术参数
| 规格项 | 参数值 |
|---|---|
| 测量介质 | Gas |
| 前面板接口 | Computer Controllable |
| 气体体积流量 | 0.0318 to 7.06 SCFM (0.0540 to 12 m³/hr) |
| 特征 | Controller (optional feature); Recorder / Totalizer Functions |
| 仪表类型 | Mass Flow Meter; Volumetric Flow Meter |
| 显示 | Digital (optional feature) |
| 介质温度 | 32 to 158 F (0 to 70 C) |
| 审核认证 | ATEX (optional feature) |
| 接口选项 | Serial/Digital; Network/Fieldbus |
| 终端配件 | Compression; In-line Threaded (optional feature) |
| 产品标准 | RoHS |
| 质量流量 | 0.0025 to 0.5506 lbs/min (6.74E-5 to 0.0150 metric tons/hr) |
| 工作温度 | 14 to 158 F (-10 to 70 C) |
| 电气输出 | Current; Voltage |
| 测量技术 | Thermal |
| 产品类别 | Flow Meters |
| 安装 | In-line |
| 工作压力 | 0.0 to 145 psi (0.0 to 102 m H2O) |
