Flow switch for monitoring of mass flow in hygienic design

Flow switch for monitoring of mass flow in hygienic design

Flowphant T DTT35

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    • On-site display

    • High reproducibility and long-term stability

    • Large turndown

     

    Specs at a glance

    Medium Liquids
    Measuring range 0.03 to 3 m/s (0.1 to 9.84 ft/s)
    Medium temperature –20 to +85 °C (–4 to +185 °F)
    Process pressure 0 to +100 bar (at 20 °C) (0 to 1450 psi)
    Product / VersionPrice / pcs. in PLNOrder code
    Process connection; LengthElectrical ConnectionPower Supply; Output1 to 34 to 1011+
    TRI-Clamp; G1/2", metal to metal, 30 mmPlug M1218-30VDC; 1x switch PNP1.143,-1.063,-1.006,- DTT35-A1A111xx2AAB
    Select options
    18-30VDC; 2x switch PNP1.207,-1.122,-1.062,- DTT35-A1B111xx2AAB
    Select options
    18-30VDC; switch PNP + 4-20mA1.355,-1.260,-1.192,- DTT35-A1C111xx2AAB
    Select options
    Plug ISO4400 M16x1.518-30VDC; 1x switch PNP1.207,-1.122,-1.062,- DTT35-A2A111xx2AAB
    Select options
    Hygienic connection; 30 mmPlug M1218-30VDC; 1x switch PNP1.271,-1.182,-1.118,- DTT35-A1A111xx2AAB
    Select options
    18-30VDC; 2x switch PNP1.335,-1.241,-1.175,- DTT35-A1B111xx2AAB
    Select options
    18-30VDC; switch PNP + 4-20mA1.483,-1.379,-1.305,- DTT35-A1C111xx2AAB
    Select options
    Plug ISO4400 M16x1.518-30VDC; 1x switch PNP1.335,-1.241,-1.175,- DTT35-A2A111xx2AAB
    Select options
    TRI-Clamp; G1/2", metal to metal, 100 mmPlug M1218-30VDC; 1x switch PNP1.143,-1.063,-1.006,- DTT35-A1A111xx2CAB
    Select options
    18-30VDC; 2x switch PNP1.207,-1.122,-1.062,- DTT35-A1B111xx2CAB
    Select options
    18-30VDC; switch PNP + 4-20mA1.355,-1.260,-1.192,- DTT35-A1C111xx2CAB
    Select options
    Plug ISO4400 M16x1.518-30VDC; 1x switch PNP1.207,-1.122,-1.062,- DTT35-A2A111xx2CAB
    Select options
    Hygienic connection; 100 mmPlug M1218-30VDC; 1x switch PNP1.271,-1.182,-1.118,- DTT35-A1A111xx2CAB
    Select options
    18-30VDC; 2x switch PNP1.335,-1.241,-1.175,- DTT35-A1B111xx2CAB
    Select options
    18-30VDC; switch PNP + 4-20mA1.483,-1.379,-1.305,- DTT35-A1C111xx2CAB
    Select options
    Plug ISO4400 M16x1.518-30VDC; 1x switch PNP1.335,-1.241,-1.175,- DTT35-A2A111xx2CAB
    Select options
    Cable and plug to be ordered separately from the accessories section.

    Accessories

    Product / VersionPrice / pcs. in PLNOrder code
    Cable M12x1 l=5m 5m cable 4x 0.34 mm2, molded PVC angled connector, M12x1 connector screw Cu Sn/Ni, IP67.38,98 51005148
    Add to cart
    Socket for plug 4p-125V, 4A-M12 M12 socket for plug. Self confectionery connection. Usage: plug M12.62,96 52006263
    Add to cart
    Configuration kit TXU10- for PC-programmable devices. set-up programme+interface cable for PC with USB-Port. 4 pin plug + ReadWin2000404,63 TXU10-AA
    Add to cart
    M12 elbow plug ready for cable, IP67,PG741,20 51006327
    Add to cart
    G1/2 metal to metal weld in adapter97,31 60021387
    Add to cart
    System power supply RNB130 Primary switched-mode. Input voltage: 85-264VAC, 45-65Hz. Output voltage: 24VDC, max. 30V (for errors).552,55 RNB130-A1A
    Add to cart

    Prices valid until 30.11.2017 in PLN per unit (not including shipping and applicable sales tax). See
    Endress+Hauser Terms and Conditions

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  • Application

    The Flowphant T DTT35 is a flow switch (surface quality Ra ≤ 0.8 µm) for monitoring, displaying and measuring relative mass flow rates of liquid media in the range from 0.03 to 3 m/s (0.1 to 9.84 ft/s). Application examples include: Monitoring cooling water circulation systems of pumps, turbines, compressors and heat exchangers and filter monitoring in the beverage industry.

    Function

    The device measures the mass flow of a liquid medium with the calorimetric measurement method. The calorimetric measuring principle is based on cooling a heated temperature sensor. Heat is removed from the sensor by forced convection due to medium flowing by. The extent of this heat transfer depends on the medium velocity and the difference in temperature between the sensor and medium (King's law). The higher the velocity or the mass flow of the medium, the greater the temperature sensor cooling.

    Application example

    Flow switch - Application example

    The Flowphant monitors the flow in a cooling circuit and signals when flow drops below a minimum flow rate.

  • Technical data

    Input
    Measurement range 0 to 100 %; resol. 1 %; 0.03 to 3 m/s (0.1 to 9.84 ft/s) for liquids
    Output
    Output signal 1 × PNP, 2 × PNP or 1 × PNP with analog output for flow and temperature
    Voltage drop PNP ≤2 V
    Overload protection Automatic testing
    Performance characteristics
    Reference conditions According to DIN IEC 60770/61003
    Measured error Switch point and display 0.2 %
    Long-term drift ≤0.5 % per year under reference operating conditions
    Sensor reaction time 6 to 12 s
    Response time switch output 100 ms
    Operating conditions
    Medium temperature –20 to +85 °C (–4 to +185 °F), 130 °C (266 °F) max. 1h (no measuring at temperatures > 85 °C (185 °F))
    Ambient temperature –40 to +85 °C (–40 to +185 °F)
    Degree of protection IP 65 (complete housing)
    Power supply
    Supply voltage Ub 18 to 30 V DC, reverse polarity protection
    Current consumption Without load < 100 mA at 24 V DC
    General
    EMC Interference emiss. as per IEC 61326 Series, class B electrical equipment, interference immunity as per IEC 61326 Series, app. A (industrial use) and NAMUR Recomm. NE 21
    Operating elements 3 buttons or PC and ReadWin® 2000
    Materials 316L (process connection, protection tube, housing)
    Surface quality R­a ≤ 0.8 µm
    Approvals
    Desina compliant, 3A

    Dimensions (in mm)

    Housing

    Hygienic Flow switch - Dimensions

    L = sensor length 30 mm, 100 mm (1.18", 3.94")

     

    Installation according to operation instructions

    Process connection

    Hygienic Flow switch - Process connections

    a) Conical metal-metal G ½"

    b) CLAMP1"

    c) CLAMP2"

    d) Varivent F

    e) Varivent N

    f) APV-Inline

    g) DIN 11851, DN50

    h) DIN 11851, DN25

    i) DIN 11851, DN40

     

    B = hole 6 × ⌀ 8.6 mm + 2 × thread M8

     

    Process connections

    Code

    		 Version
      TRI-CLAMP® / Metal to metal Connections

    DB

    ISO 2852 DN25-38 (1 to 1½"), 316L, 3A, DIN 32676 DN25-40

    DL

    ISO 2852 DN40-51 (2"), 316L, 3A, DIN 32676 DN50

    MB

    Conical metal-metal G ½", 316L
      Hygienic connections

    HL

    APV-Inline DN50, PN40, 316L, 3A

    LB

    Varivent® F Pipe DN25-32, PN40, 316L, 3A

    LL

    Varivent® N Pipe DN40-162, PN40, 316L, 3A

    PG

    DIN 11851, DN25, PN40, 316L, 3A

    PH

    DIN 11851, DN40, PN40, 316L, 3A

    PL

    DIN 11851, DN50, PN40, 316L, 3A

    Electrical connection

    Hygienic Flow switch - Connecting

    DC voltage version with M12×1 connector

    A1:  1 × PNP switch output

    A2:  2 × PNP switch outputs R1 and (1) (R2)

    A2': 2 × PNP switch outputs R1 and (1)
    (diagnosis/break contact with adjustment „DESINA")

    A3:  PNP switch output, additional analog output

     

    DC voltage version with valve plug M16×1.5

    B :  1 × PNP switch output

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