Sierra Instruments, Inc. Thermal Mass Flow Meters - QuadraTherm® 780i 质量流量计和控制器

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  • Thermal Mass Flow Meters - QuadraTherm® 780i

  • 质量流量计和控制器

  • Sierra Instruments, Inc.

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  • Sierra Instruments, Inc.

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QuadraTherm® 780i inline thermal mass flow meters from Sierra Instruments offer the most accurate gas mass flow rate measurement on the market today, achieving gas mass flow rate accuracy never before possible, +\/- 0.5% of reading above 50% of full scale. Sierra's 780i thermal mass flow meters provide wide turndown ratio, very low pressure drop, no moving parts, application flexibility and a direct gas mass flow rate measurement.","The four-sensor QuadraTherm technology used in our air flow measurement devices gives you extreme precision with percent of reading accuracy as part of the total package. Sierra's air flow measurement equipment is ideal for wastewater treatment applications, hazardous areas, facilities management, and general process control applications where high accuracy is critical. Instrument software also features a unique multi-gas flow totalizer. An insertion version of this instrument is also available.","The four-sensor QuadraTherm technology , ideal for compressed air flow measurement, features our no-drift DrySense velocity sensor and works with the qTherm algorithm set to achieve accuracy of +\/- 0.5% of reading above 50% of full scale. (Accuracy statement verified by an independent NIST and NVLAP accredited metrology laboratory.) The qTherm is also the \"brain\" behind the flowmeter’s capability to change gas (Dial-A-Gas) and pipe size (Dial-A-Pipe) in the field, while also allowing gas updates to the instrument via the internet connecting to the most up to date gases in our proprietary qTherm Gas Library.","Built-in flow conditioning elements drastically reduce upstream straight-run requirements, making the meter ideal for tight pipe configurations. For example, after a 90-degree elbow, 15-diameters of pipe run would be required. The 780i only needs 1-diameter and zero downstream diameters. The instrument measures up to 60,000 sfpm (305 smps) and features a 100:1 turndown.","In addition, while the meter always provides in-line air flow measurement of mass flow rate and temperature, the addition of a pressure sensor to the sensor probe creates a fully multivariable version. The ability to change gases and pipe sizes in the field adds to the ease of use and flexibility of the instrument for highly accurate air flow velocity measurement. Use the field calibration validation and meter diagnostics package to assure the meter is always operating at top performance for all your air flow measurement needs.","Our digital communications solutions offer engineers and systems integrators, full industrial system integration and networking capability with Sierra's thermal mass flow meters. Digital communications solutions include: Foundation Fieldbus, Modbus RTU, Profibus DP, and HART. This flexibility of communication features offers turnkey solutions for integration of Sierra's thermal mass flow meters into any industrial automation system or application.

Thermal Mass Flow Meters - QuadraTherm® 780i 质量流量计和控制器技术参数

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性 能
精度 0.5000 ±%
特 性
工作压力 30 to 500 psi (21.11 to 352 m H2O)
气体体积流量 0.0 to 20931 SCFM (0.0 to 35577 m³/hr)
介质温度 -40 to 392 F (-40 to 200 C)
介质类型 Gas
特征 Built-in Alarm Indicator; Controller; Programmable; Recorder / Totalizer Functions
电 气
电气输出 Analog Current; Switch
连 接 & 显 示
接口选项 Serial / Digital; Network / Fieldbus (optional feature); Modbus, Foundation Fieldbus, Profibus DP, HART
环 境
工作温度 -40 to 140 F (-40 to 60 C)
物 理
终端配件 In-line Flanged (optional feature); Socket Weld / Union (optional feature); In-line Threaded (optional feature); Tube End/Hose Nipple (optional feature)
管道直径 0.50 to 8.00 inch (12.7 to 203 mm)
安装 In-line
更多技术信息
仪表形式 Mass Flow Meter; Volumetric Flow Meter
更多规格
交流电压 100 to 240 volts
测量的附加变量 Temperature
审核认证 ATEX; European Committee for Electrotechnical Standardization; CE, ISO 9001, cFMus–Explosion proof for Class I, Div I, Groups B,C,D
电流 1 amps
直流电压 24 volts
显示 Digital (optional feature)
前面板接口 Digital Front Panel (optional feature); Computer Controllable (optional feature)
测量技术 Thermal
产品类别 Mass Flow Meters and Controllers
产品标准 RoHS; WEEE Compliant

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