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Litre Meter / TASI
英国 Litre Meter Limited 从1975年就开始生产流量计产品，并从1986年开始设计生产容积式流量计。 这些丰富的经验积累使我们能很专业的选择合适的流量测量技术并且给客户提供最有效的测量方案。 我们主要服务的市场包括化学加注撬和石油天然气行业中的液压应用。 我们最近成功地赢得墨西哥湾的海上钻井平台的139台流量计的项目，其压力高达15,000psi. 在英国，Litremeter可以提供更为广泛的流量计产品，包括美国AW-Lake的流量计以及德国KEM Küppers的流量计产品。KEM 目前是 TASI 集团旗下品牌。中国业务凯恩姆流量技术（北京）有限公司（总部）凯恩姆流量技术（北京）有限公司（上海分部）TASI集团历史 TASI集团具有悠久的历史。在过往的时间里我们成功地收购了多个测试测量领域的业务单元，并且成功地引导他们进入高速发展的新的阶段.1981 Cincinnati Test Systems, Inc. 成立于美国俄亥俄州辛辛那提.1999 TASI控股集团公司成立.2000 TASI集团收购ATC Automation Company(美国田纳西州Cookeville) 和Air Logic Power System(ALPS)(美国威斯康星州Milwaukee)2005 TASI集团收购AW Company(威斯康星州Franksville),KEM Kueppers(德国Karlsfeld), EXACT Dispensing Systems(美国缅因州Newcastle)2011 TASI集团收购Litre Meter Limited(英国白金汉郡North Masrston), Vogtlin Instruments AG(瑞士Aesch)2012 TASI集团收购Bonfiglioli Engineering S.p.A(意大利Ferrara)2013 TASI集团收购Sepha Ltd(北爱尔兰Belfast)TASI集团旗下品牌
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  • Litre Meter / TASI ZHM 容积式流量计

    管道直径:0.04 to 5.91 inch (1 to 150 mm)
    测量技术:Round Gear ;Other
    安装:In-line
    工作压力:9137 psi (6431 m H2O)
    电气输出:Current; Frequency; Switch
    工作温度:-40 to 176 F (-40 to 80 C)
    终端配件:Flanged; In-line Threaded
    测量介质:Liquid
    接口选项:Network/Fieldbus; HART;Network / Fieldbus / 网络 / 现场总线
    精度:0.5000 ±%
    前面板接口:Knobs/Switches (optional feature); Digital Front Panel; Computer Controllable
    审核认证:ATEX; Underwriters Laboratory; Canadian Standards Association; European Committee for Electrotechnical Standardization; IECEx
    产品类别:Positive Displacement Flow Meters
    显示:Analog (optional feature); Digital (optional feature)
    产品标准:RoHS; WEEE Compliant

  • Litre Meter / TASI SRZ 容积式流量计

    工作温度:-40 to 176 F (-40 to 80 C)
    管道直径:0.20 to 5.91 inch (5 to 150 mm)
    终端配件:In-line Flanged (optional feature); In-line Threaded
    接口选项:Serial/Digital; Network/Fieldbus; HART
    测量技术:Helical Screw ;Other
    工作压力:5802 psi (4083 m H2O)
    电气输出:Current; Frequency; Switch
    安装:In-line
    测量介质:Liquid
    显示:Analog (optional feature); Digital (optional feature)
    前面板接口:Knobs/Switches (optional feature); Digital Front Panel; Computer Controllable
    产品标准:RoHS; WEEE Compliant
    精度:0.5000 ±%
    产品类别:Positive Displacement Flow Meters
    审核认证:ATEX; Underwriters Laboratory; Canadian Standards Association; European Committee for Electrotechnical Standardization; IECEx

  • Litre Meter / TASI MMPVC.100 容积式流量计

    终端配件:In-line Clamp (optional feature); Compression (optional feature); In-line Flanged (optional feature); Plain End (optional feature); Socket Weld / Union (optional feature); In-line Threaded; Tube End/Hose Nipple (optional feature); Hub, Graylock etc
    测量技术:Piston
    安装:In-line
    液体体积流量:6.60 to 580.80 GPM (25 to 2200 L/min)
    测量介质:Liquid
    接口选项:Serial/Digital; Network/Fieldbus; HART
    工作温度:-4 to 122 F (-20 to 50 C)
    管道直径:0.49 inch (12.5 mm)
    电气输出:Current; Frequency; Switch
    产品标准:RoHS; WEEE Compliant
    产品类别:Positive Displacement Flow Meters
    审核认证:ATEX
    精度:2 ±%
    介质温度:14 to 122 F (-10 to 50 C)

  • Litre Meter / TASI MMPVC.12.5 容积式流量计

    液体体积流量:0.26 to 17.16 GPM (1 to 65 L/min)
    电气输出:Current; Frequency; Switch
    工作温度:-4 to 122 F (-20 to 50 C)
    终端配件:In-line Clamp (optional feature); Compression (optional feature); In-line Flanged (optional feature); Plain End (optional feature); Socket Weld / Union (optional feature); In-line Threaded; Tube End/Hose Nipple (optional feature); Hub, Graylock etc
    测量介质:Liquid
    管道直径:0.49 inch (12.5 mm)
    安装:In-line
    测量技术:Piston
    接口选项:Serial/Digital; Network/Fieldbus; HART
    介质温度:14 to 122 F (-10 to 50 C)
    产品类别:Positive Displacement Flow Meters
    精度:2 ±%
    审核认证:ATEX
    产品标准:RoHS; WEEE Compliant

  • Litre Meter / TASI MMPVC.150 容积式流量计

    测量介质:Liquid
    工作温度:-4 to 122 F (-20 to 50 C)
    安装:In-line
    终端配件:In-line Clamp (optional feature); Compression (optional feature); In-line Flanged (optional feature); Plain End (optional feature); Socket Weld / Union (optional feature); In-line Threaded; Tube End/Hose Nipple (optional feature); Hub, Graylock etc
    液体体积流量:26.40 to 1320.00 GPM (100 to 5000 L/min)
    电气输出:Current; Frequency; Switch
    测量技术:Piston
    管道直径:0.49 inch (12.5 mm)
    接口选项:Serial/Digital; Network/Fieldbus; HART
    产品类别:Positive Displacement Flow Meters
    介质温度:14 to 122 F (-10 to 50 C)
    审核认证:ATEX
    产品标准:RoHS; WEEE Compliant
    精度:2 ±%

  • Litre Meter / TASI MMPVC.20 容积式流量计

    液体体积流量:0.53 to 34.32 GPM (2 to 130 L/min)
    电气输出:Current; Frequency; Switch
    安装:In-line
    测量介质:Liquid
    测量技术:Piston
    终端配件:In-line Clamp (optional feature); Compression (optional feature); In-line Flanged (optional feature); Plain End (optional feature); Socket Weld / Union (optional feature); In-line Threaded; Tube End/Hose Nipple (optional feature); Hub, Graylock etc
    接口选项:Serial/Digital; Network/Fieldbus; HART
    工作温度:-4 to 122 F (-20 to 50 C)
    管道直径:0.49 inch (12.5 mm)
    产品类别:Positive Displacement Flow Meters
    介质温度:14 to 122 F (-10 to 50 C)
    审核认证:ATEX
    精度:2 ±%
    产品标准:RoHS; WEEE Compliant

  • Litre Meter / TASI MMPVC.200L 容积式流量计

    液体体积流量:79.20 to 1452.00 GPM (300 to 5500 L/min)
    测量技术:Piston
    接口选项:Serial/Digital; Network/Fieldbus; HART
    工作温度:-4 to 122 F (-20 to 50 C)
    管道直径:0.49 inch (12.5 mm)
    安装:In-line
    终端配件:In-line Clamp (optional feature); Compression (optional feature); In-line Flanged (optional feature); Plain End (optional feature); Socket Weld / Union (optional feature); In-line Threaded; Tube End/Hose Nipple (optional feature); Hub, Graylock etc
    测量介质:Liquid
    电气输出:Current; Frequency; Switch
    介质温度:14 to 122 F (-10 to 50 C)
    精度:2 ±%
    审核认证:ATEX
    产品标准:RoHS; WEEE Compliant
    产品类别:Positive Displacement Flow Meters

  • Litre Meter / TASI MMPVC.25 容积式流量计

    电气输出:Current; Frequency; Switch
    工作温度:-4 to 122 F (-20 to 50 C)
    管道直径:0.49 inch (12.5 mm)
    安装:In-line
    终端配件:In-line Clamp (optional feature); Compression (optional feature); In-line Flanged (optional feature); Plain End (optional feature); Socket Weld / Union (optional feature); In-line Threaded; Tube End/Hose Nipple (optional feature); Hub, Graylock etc
    液体体积流量:0.79 to 42.24 GPM (3 to 160 L/min)
    测量技术:Piston
    接口选项:Serial/Digital; Network/Fieldbus; HART
    测量介质:Liquid
    介质温度:14 to 122 F (-10 to 50 C)
    产品类别:Positive Displacement Flow Meters
    审核认证:ATEX
    产品标准:RoHS; WEEE Compliant
    精度:2 ±%

  • Litre Meter / TASI MMPVC.30 容积式流量计

    测量技术:Piston
    液体体积流量:1.32 to 58.08 GPM (5 to 220 L/min)
    终端配件:In-line Clamp (optional feature); Compression (optional feature); In-line Flanged (optional feature); Plain End (optional feature); Socket Weld / Union (optional feature); In-line Threaded; Tube End/Hose Nipple (optional feature); Hub, Graylock etc
    电气输出:Current; Frequency; Switch
    接口选项:Serial/Digital; Network/Fieldbus; HART
    工作温度:-4 to 122 F (-20 to 50 C)
    管道直径:0.49 inch (12.5 mm)
    测量介质:Liquid
    安装:In-line
    精度:2 ±%
    审核认证:ATEX
    产品类别:Positive Displacement Flow Meters
    产品标准:RoHS; WEEE Compliant
    介质温度:14 to 122 F (-10 to 50 C)

  • Litre Meter / TASI MMPVC.37 容积式流量计

    终端配件:In-line Clamp (optional feature); Compression (optional feature); In-line Flanged (optional feature); Plain End (optional feature); Socket Weld / Union (optional feature); In-line Threaded; Tube End/Hose Nipple (optional feature); Hub, Graylock etc
    电气输出:Current; Frequency; Switch
    工作温度:-4 to 122 F (-20 to 50 C)
    测量技术:Piston
    管道直径:0.49 inch (12.5 mm)
    安装:In-line
    测量介质:Liquid
    接口选项:Serial/Digital; Network/Fieldbus; HART
    液体体积流量:1.85 to 92.40 GPM (7 to 350 L/min)
    产品标准:RoHS; WEEE Compliant
    审核认证:ATEX
    产品类别:Positive Displacement Flow Meters
    精度:2 ±%
    介质温度:14 to 122 F (-10 to 50 C)

  • Litre Meter / TASI MMPVC.50 容积式流量计

    测量介质:Liquid
    液体体积流量:2.64 to 132.00 GPM (10 to 500 L/min)
    管道直径:0.49 inch (12.5 mm)
    工作温度:-4 to 122 F (-20 to 50 C)
    终端配件:In-line Clamp (optional feature); Compression (optional feature); In-line Flanged (optional feature); Plain End (optional feature); Socket Weld / Union (optional feature); In-line Threaded; Tube End/Hose Nipple (optional feature); Hub, Graylock etc
    测量技术:Piston
    安装:In-line
    电气输出:Current; Frequency; Switch
    接口选项:Serial/Digital; Network/Fieldbus; HART
    审核认证:ATEX
    产品标准:RoHS; WEEE Compliant
    产品类别:Positive Displacement Flow Meters
    介质温度:14 to 122 F (-10 to 50 C)
    精度:2 ±%

  • Litre Meter / TASI MMPVC.62 容积式流量计

    测量技术:Piston
    安装:In-line
    电气输出:Current; Frequency; Switch
    管道直径:0.49 inch (12.5 mm)
    终端配件:In-line Clamp (optional feature); Compression (optional feature); In-line Flanged (optional feature); Plain End (optional feature); Socket Weld / Union (optional feature); In-line Threaded; Tube End/Hose Nipple (optional feature); Hub, Graylock etc
    测量介质:Liquid
    接口选项:Serial/Digital; Network/Fieldbus; HART
    工作温度:-4 to 122 F (-20 to 50 C)
    液体体积流量:5.28 to 211.20 GPM (20 to 800 L/min)
    审核认证:ATEX
    精度:2 ±%
    产品类别:Positive Displacement Flow Meters
    介质温度:14 to 122 F (-10 to 50 C)
    产品标准:RoHS; WEEE Compliant

  • Litre Meter / TASI MMPVC.75 容积式流量计

    终端配件:In-line Clamp (optional feature); Compression (optional feature); In-line Flanged (optional feature); Plain End (optional feature); Socket Weld / Union (optional feature); In-line Threaded; Tube End/Hose Nipple (optional feature); Hub, Graylock etc
    测量介质:Liquid
    电气输出:Current; Frequency; Switch
    管道直径:0.49 inch (12.5 mm)
    安装:In-line
    测量技术:Piston
    接口选项:Serial/Digital; Network/Fieldbus; HART
    液体体积流量:6.60 to 343.20 GPM (25 to 1300 L/min)
    工作温度:-4 to 122 F (-20 to 50 C)
    产品类别:Positive Displacement Flow Meters
    产品标准:RoHS; WEEE Compliant
    介质温度:14 to 122 F (-10 to 50 C)
    精度:2 ±%
    审核认证:ATEX

  • Litre Meter / TASI MMPVC3.100 容积式流量计

    安装:In-line
    终端配件:In-line Clamp (optional feature); Compression (optional feature); In-line Flanged (optional feature); Plain End (optional feature); Socket Weld / Union (optional feature); In-line Threaded; Tube End/Hose Nipple (optional feature); Hub, Graylock etc
    液体体积流量:6.60 to 580.80 GPM (25 to 2200 L/min)
    测量技术:Piston
    工作温度:-4 to 122 F (-20 to 50 C)
    管道直径:0.49 inch (12.5 mm)
    测量介质:Liquid
    工作压力:72.52 psi (51.04 m H2O)
    接口选项:Serial/Digital; Network/Fieldbus; HART
    电气输出:Current; Frequency; Switch
    产品类别:Positive Displacement Flow Meters
    精度:2 ±%
    介质温度:14 to 122 F (-10 to 50 C)
    审核认证:ATEX
    产品标准:RoHS; WEEE Compliant

  • Litre Meter / TASI MMPVC3.12.5 容积式流量计

    电气输出:Current; Frequency; Switch
    测量技术:Piston
    管道直径:0.49 inch (12.5 mm)
    测量介质:Liquid
    接口选项:Serial/Digital; Network/Fieldbus; HART
    工作温度:-4 to 122 F (-20 to 50 C)
    安装:In-line
    工作压力:72.52 psi (51.04 m H2O)
    终端配件:In-line Clamp (optional feature); Compression (optional feature); In-line Flanged (optional feature); Plain End (optional feature); Socket Weld / Union (optional feature); In-line Threaded; Tube End/Hose Nipple (optional feature); Hub, Graylock etc
    液体体积流量:0.26 to 17.16 GPM (1 to 65 L/min)
    产品类别:Positive Displacement Flow Meters
    精度:2 ±%
    产品标准:RoHS; WEEE Compliant
    审核认证:ATEX
    介质温度:14 to 122 F (-10 to 50 C)

  • Litre Meter / TASI MMPVC3.150 容积式流量计

    液体体积流量:26.40 to 1320.00 GPM (100 to 5000 L/min)
    电气输出:Current; Frequency; Switch
    测量技术:Piston
    管道直径:0.49 inch (12.5 mm)
    终端配件:In-line Clamp (optional feature); Compression (optional feature); In-line Flanged (optional feature); Plain End (optional feature); Socket Weld / Union (optional feature); In-line Threaded; Tube End/Hose Nipple (optional feature); Hub, Graylock etc
    测量介质:Liquid
    工作压力:72.52 psi (51.04 m H2O)
    安装:In-line
    接口选项:Serial/Digital; Network/Fieldbus; HART
    工作温度:-4 to 122 F (-20 to 50 C)
    产品标准:RoHS; WEEE Compliant
    精度:2 ±%
    介质温度:14 to 122 F (-10 to 50 C)
    产品类别:Positive Displacement Flow Meters
    审核认证:ATEX

  • Litre Meter / TASI MMPVC3.20 容积式流量计

    测量介质:Liquid
    工作压力:72.52 psi (51.04 m H2O)
    液体体积流量:0.53 to 34.32 GPM (2 to 130 L/min)
    测量技术:Piston
    终端配件:In-line Clamp (optional feature); Compression (optional feature); In-line Flanged (optional feature); Plain End (optional feature); Socket Weld / Union (optional feature); In-line Threaded; Tube End/Hose Nipple (optional feature); Hub, Graylock etc
    电气输出:Current; Frequency; Switch
    接口选项:Serial/Digital; Network/Fieldbus; HART
    管道直径:0.49 inch (12.5 mm)
    安装:In-line
    工作温度:-4 to 122 F (-20 to 50 C)
    产品标准:RoHS; WEEE Compliant
    介质温度:14 to 122 F (-10 to 50 C)
    产品类别:Positive Displacement Flow Meters
    精度:2 ±%
    审核认证:ATEX

  • Litre Meter / TASI MMPVC3.200L 容积式流量计

    安装:In-line
    测量介质:Liquid
    工作压力:72.52 psi (51.04 m H2O)
    工作温度:-4 to 122 F (-20 to 50 C)
    管道直径:0.49 inch (12.5 mm)
    终端配件:In-line Clamp (optional feature); Compression (optional feature); In-line Flanged (optional feature); Plain End (optional feature); Socket Weld / Union (optional feature); In-line Threaded; Tube End/Hose Nipple (optional feature); Hub, Graylock etc
    测量技术:Piston
    电气输出:Current; Frequency; Switch
    接口选项:Serial/Digital; Network/Fieldbus; HART
    液体体积流量:79.20 to 1452.00 GPM (300 to 5500 L/min)
    产品类别:Positive Displacement Flow Meters
    介质温度:14 to 122 F (-10 to 50 C)
    审核认证:ATEX
    精度:2 ±%
    产品标准:RoHS; WEEE Compliant

  • Litre Meter / TASI MMPVC3.25 容积式流量计

    液体体积流量:0.79 to 42.24 GPM (3 to 160 L/min)
    电气输出:Current; Frequency; Switch
    测量技术:Piston
    管道直径:0.49 inch (12.5 mm)
    接口选项:Serial/Digital; Network/Fieldbus; HART
    工作温度:-4 to 122 F (-20 to 50 C)
    测量介质:Liquid
    工作压力:72.52 psi (51.04 m H2O)
    安装:In-line
    终端配件:In-line Clamp (optional feature); Compression (optional feature); In-line Flanged (optional feature); Plain End (optional feature); Socket Weld / Union (optional feature); In-line Threaded; Tube End/Hose Nipple (optional feature); Hub, Graylock etc
    介质温度:14 to 122 F (-10 to 50 C)
    产品类别:Positive Displacement Flow Meters
    精度:2 ±%
    审核认证:ATEX
    产品标准:RoHS; WEEE Compliant

  • Litre Meter / TASI MMPVC3.30 容积式流量计

    管道直径:0.49 inch (12.5 mm)
    安装:In-line
    接口选项:Serial/Digital; Network/Fieldbus; HART
    电气输出:Current; Frequency; Switch
    工作温度:-4 to 122 F (-20 to 50 C)
    终端配件:In-line Clamp (optional feature); Compression (optional feature); In-line Flanged (optional feature); Plain End (optional feature); Socket Weld / Union (optional feature); In-line Threaded; Tube End/Hose Nipple (optional feature); Hub, Graylock etc
    液体体积流量:1.32 to 58.08 GPM (5 to 220 L/min)
    测量技术:Piston
    测量介质:Liquid
    工作压力:72.52 psi (51.04 m H2O)
    产品标准:RoHS; WEEE Compliant
    精度:2 ±%
    审核认证:ATEX
    产品类别:Positive Displacement Flow Meters
    介质温度:14 to 122 F (-10 to 50 C)

  • Litre Meter / TASI MMPVC3.37 容积式流量计

    终端配件:In-line Clamp (optional feature); Compression (optional feature); In-line Flanged (optional feature); Plain End (optional feature); Socket Weld / Union (optional feature); In-line Threaded; Tube End/Hose Nipple (optional feature); Hub, Graylock etc
    液体体积流量:1.85 to 92.40 GPM (7 to 350 L/min)
    接口选项:Serial/Digital; Network/Fieldbus; HART
    安装:In-line
    管道直径:0.49 inch (12.5 mm)
    电气输出:Current; Frequency; Switch
    工作温度:-4 to 122 F (-20 to 50 C)
    测量技术:Piston
    测量介质:Liquid
    工作压力:72.52 psi (51.04 m H2O)
    产品类别:Positive Displacement Flow Meters
    精度:2 ±%
    介质温度:14 to 122 F (-10 to 50 C)
    审核认证:ATEX
    产品标准:RoHS; WEEE Compliant

  • Litre Meter / TASI MMPVC3.50 容积式流量计

    液体体积流量:2.64 to 132.00 GPM (10 to 500 L/min)
    终端配件:In-line Clamp (optional feature); Compression (optional feature); In-line Flanged (optional feature); Plain End (optional feature); Socket Weld / Union (optional feature); In-line Threaded; Tube End/Hose Nipple (optional feature); Hub, Graylock etc
    测量介质:Liquid
    工作压力:72.52 psi (51.04 m H2O)
    电气输出:Current; Frequency; Switch
    安装:In-line
    接口选项:Serial/Digital; Network/Fieldbus; HART
    工作温度:-4 to 122 F (-20 to 50 C)
    测量技术:Piston
    管道直径:0.49 inch (12.5 mm)
    精度:2 ±%
    产品标准:RoHS; WEEE Compliant
    产品类别:Positive Displacement Flow Meters
    审核认证:ATEX
    介质温度:14 to 122 F (-10 to 50 C)

  • Litre Meter / TASI MMPVC3.62 容积式流量计

    安装:In-line
    工作温度:-4 to 122 F (-20 to 50 C)
    液体体积流量:5.28 to 211.20 GPM (20 to 800 L/min)
    工作压力:72.52 psi (51.04 m H2O)
    电气输出:Current; Frequency; Switch
    管道直径:0.49 inch (12.5 mm)
    终端配件:In-line Clamp (optional feature); Compression (optional feature); In-line Flanged (optional feature); Plain End (optional feature); Socket Weld / Union (optional feature); In-line Threaded; Tube End/Hose Nipple (optional feature); Hub, Graylock etc
    测量介质:Liquid
    测量技术:Piston
    接口选项:Serial/Digital; Network/Fieldbus; HART
    介质温度:14 to 122 F (-10 to 50 C)
    产品类别:Positive Displacement Flow Meters
    产品标准:RoHS; WEEE Compliant
    精度:2 ±%
    审核认证:ATEX

  • Litre Meter / TASI MMPVC3.75 容积式流量计

    接口选项:Serial/Digital; Network/Fieldbus; HART
    工作温度:-4 to 122 F (-20 to 50 C)
    管道直径:0.49 inch (12.5 mm)
    测量技术:Piston
    液体体积流量:6.60 to 343.20 GPM (25 to 1300 L/min)
    电气输出:Current; Frequency; Switch
    工作压力:72.52 psi (51.04 m H2O)
    安装:In-line
    终端配件:In-line Clamp (optional feature); Compression (optional feature); In-line Flanged (optional feature); Plain End (optional feature); Socket Weld / Union (optional feature); In-line Threaded; Tube End/Hose Nipple (optional feature); Hub, Graylock etc
    测量介质:Liquid
    精度:2 ±%
    审核认证:ATEX
    产品类别:Positive Displacement Flow Meters
    介质温度:14 to 122 F (-10 to 50 C)
    产品标准:RoHS; WEEE Compliant

  • Litre Meter / TASI MMSPFA.100 容积式流量计

    管道直径:0.49 inch (12.5 mm)
    测量介质:Liquid
    液体体积流量:6.60 to 580.80 GPM (25 to 2200 L/min)
    终端配件:In-line Clamp (optional feature); Compression (optional feature); In-line Flanged (optional feature); Plain End (optional feature); Socket Weld / Union (optional feature); In-line Threaded; Tube End/Hose Nipple (optional feature); Hub, Graylock etc
    工作温度:-4 to 158 F (-20 to 70 C)
    工作压力:0.0 to 580 psi (0.0 to 408 m H2O)
    电气输出:Current; Frequency; Switch
    安装:In-line
    接口选项:Serial/Digital; Network/Fieldbus; HART
    测量技术:Piston
    产品标准:RoHS; WEEE Compliant
    介质温度:-4 to 158 F (-20 to 70 C)
    精度:2 ±%
    审核认证:ATEX
    产品类别:Positive Displacement Flow Meters
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