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FMA-LP1600A

FMA-LP1600A

分  类：其它

品  牌：欧米茄

厂  商：Omega工业测量（中国）

型  号：FMA-LP1600A

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发布时间：2019-12-19 17:33 浏览人数：人

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    参数
    包装
    • Ranges of 0 to 0.5 SCCM Up to 0 to 500 SLM
    • Reports Mass Flow, Volumetric Flow, Temperature, and Pressure
    • <10 ms Response Time—Field Adjustable
    • 130+ Gas Calibrations, Including Air, Ar, CH4, CO, CO2, Ethane, H2, He, N2, N2O, Neon, O2, Propane, Butane, Iso-Butane, Acetylene, Ethylene, Krypton, Xenon, and Sulfur Hexafluoride
    • Pressure, Temperature and Volumetric and Mass Flow Simultaneously Displayed
    • NIST 5-Point Certificate Included
    • No Straight Runs of Pipe Required
    • No Warm-Up Time
    • Turndown Ratio of 200:1 (0.5% Maximum Flow)
    • RS232 Standard
    • Portable Battery Powered units (-B models)

      • The FMA-LP1600A Series mass and volumetricflowmeters use the principle of differential pressurewithin a laminar flow field to determine the mass flowrate. A laminar flow element (LFE) inside the meterforces the gas into laminar (streamlined) flow. Insidethis region, the Poiseuille equation dictates that thevolumetric flow rate be linearly related to thepressure drop. A differential pressure sensor is usedto measure the pressure drop along a fixed distanceof the LFE. This, along with the viscosity of the gas, isused to accurately determine the volumetric flow rate.Separate absolute temperature and pressure sensorsare incorporated and correct the volumetric flow rateto a set of standard conditions. This standardized flowrate is commonly called the mass flow rate and isreported in units such as standard cubic feet perminute (SCFM) or standard liters per minute (SLM).Standard units include a 0 to 5 V output (4 to 20 mAoptional) and RS232 communications. The gas selectfeature can be adjusted from the front keypad or viaRS232 communications. Volumetric flow, mass flow,absolute pressure, and temperature can all be viewedor recorded through the RS232 connection. It is alsopossible to multi-drop up to 26 units on the same serialconnection to a distance of 38 m (125'). These flowmeterscan be portable with an optional battery pack (-B models).

      Specifications
      Mass Reference Conditions: (STP) 25ۥC, 14.7 PSIA
      Accuracy: ±(0.8% of rdg ± 0.2% FS)
      Repeatability: ±0.2%
      Turndown Ratio: 200:1
      Response Time: 10 ms typical default response time for 63.2% of a step change. A variable register allows response time to be field adjustable via RS232 communications.
      Output: 0 to 5 Vdc standard
      Operating Temperature: -10 to 50°C (14 to 122°F)
      Zero Shift: 0.02% FS/°C/atm
      Span Shift: 0.02% FS/°C/atm
      Humidity Range: 0 to 100% non-condensing
      Pressure (Maximum): 50 psig
      Measurable Flow Rate: 125% FS
      Supply Voltage: 7 to 30 Vdc (15 to 30 Vdc for 4 to 20 mA output)
      Supply Current: 40 mA typical current draw; 100 mA available supply recommended
      Cable Connection: 8-pin mini DIN
      Wetted Parts: 302 and 303 SS, FKM, silicone RTV, nylon 616, aluminum
      Ingress Protection: IP40
      -LSS (Option):316LSS, 303SS, 430FRSS, Perfluoroelastomer standard, FKM, EPDM, Buna, NeopreneCommunications: RS232 standard, RS485 (optional)
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    公司名称：Omega工业测量（中国）
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