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    Control head for decentralized automation of ELEMENT process valves

    Type 8691 / Ident No. 227265

    Produkt-Foto Typ 8691

    The depiction of the products may differ from the actual specific design.

    • Produkt-Foto Typ 8691
    • Produkt-Foto Typ 8691
    • Massbild
    • Massbild
    • Massbild
    • Massbild
    • Massbild

    Control head top 70 mm for actuator 20XX

    • Contact-free inductive valve position registration(Teach function)
    • Coloured illuminated status display
    • Integrated control air routing
    • Fieldbus AS-Interface or DeviceNet (option)
    • With ATEX II cat. 3G/D approval

    For selecting the correct product please refer to the technical data, images and notes for proper use according to the data sheet.

    Product description

    The control head Type 8691 is designed for decentralized automation of ELEMENT Type 21xx pneumatic process valves. The registration of the valve end position is done through a contact-free analog position sensor, which automatically recognises and saves the valve end position through the Teach function when starting up. The integrated pilot valve controls single or double-acting actuators. As an option a fieldbus interface, AS-Interface or DeviceNet, can be chosen.The design of the control unit and the actuator enables an internal control air channel without external tubings. Besides the electrical position feedback signal the status of the device is shown directly on the control head itself through coloured powerful LEDs showing a clear visible valve position status, even under dirty or dark environments. The housing is easy to clean and features proven IP protection and chemically resistant materials for use in hygienic processing in food, beverage and pharmaceutical industries. Focused on wash down applications the IP rating is supported by a positive pressure inside the control head. Combined with Bürkert ELEMENT actuators the unique pilot valve system enables a compressed air recycling that avoids actuator chambers contamination from the environment.


    Commodity Codes
    90268020
    Country
    DE

    Technical attributes

    Name
    Value
    Unit
    Type 8691
    Function Control head
    Valve function manual actuation Yes
    Pneumatic function 1 double acting No
    Pneumatic function 1 single acting Yes
    QNn value (gas) 250 l/min
    Temperature environment min -10 °C
    Temperature environment max 55 °C
    End position feedback internal 2 PCE
    End position feedback external 0 PCE
    End position feedback top yellow
    End position feedback bottom green
    For Actuator size 40 mm No
    For Actuator size 50mm Yes
    For Actuator size 63mm Yes
    For Actuator size 70mm No
    For Actuator size 80mm Yes
    For Actuator size 90mm No
    For Actuator size 100mm Yes
    For Actuator size 125mm Yes
    For Actuator size 130mm No
    For Actuator size 175mm Yes
    For Actuator size 225mm Yes
    Port connection 1 type Inner thread
    Port connection 1 thread type G
    Port connection 1 thread marking 1/8
    Electrical connection sort Plug - M12
    Electrical connection type male
    Electrical connection material Stainless steel
    Voltage / rated voltage 29.5 V
    Voltage / rated voltage 31.6 V
    Supply system-internal No
    Supply via BUS Yes
    Supply via separating barrier No
    AC voltage No
    DC voltage Yes
    Communication interface protocol AS-i
    AS-i profile S-B.A.E
    Mounting type CLASSIC drive
    Protection type (IP max. with suitable connector) 65/67
    Weight 0,505000 kg
    Weight 0,505000 kg
    Show full table Collapse table

    Downloads

    Data Sheets

    Description
    Filename
    Filesize
    Language / Country
    DTS 8681, 869x, 879x Install Kits DS8681-InstallKits-EU-EN.pdf 4.3 MB EN / EU
    DTS Control Head DS8691-Standard-EU-EN.pdf 357 kB EN / EU
    DTS 8681, 869x, 879x Adaptionen DS8681-InstallKits-DE-DE.pdf 4.3 MB DE / DE
    DTS Cabezal de control DS8691-ControlHead-ES-ES.pdf 1.6 MB ES / ES
    DTS Steuerkopf DS8691-Standard-DE-DE.pdf 357 kB DE / DE

    User Manuals

    Description
    Filename
    Filesize
    Language / Country
    MAN Add. Inform. Position Sensor MA8691-Supplement-EU-ML.pdf 693.6 kB EN,FR,DE / EU
    MAN Approval EX Type 8690 MA8690-ApprovalEX-EU-ML.pdf 1.1 MB EN / EU
    MAN Control Head MA8691-Standard-EU-ML.pdf 106.4 MB EN,FR,DE / EU
    MAN Quickstart Control Head MA8691-Quickstart-EU-ML.pdf 47.3 MB EN,FR,DE / EU
    MAN Software Communicator MA8920-Software-EU-ML.pdf 1.3 MB EN / EU
    MAN USB-Interface MA8694-Supplement-EU-ML.pdf 2.2 MB EN,FR,DE / EU
    MAN Certification EX Type 8690 MA8690-ApprovalEX-FR-FR.pdf 1.1 MB FR / FR
    MAN Manual de Instrucciones MA8691-Standard-ES-ES.pdf 807.6 kB ES / ES
    MAN Software Communicator MA8920-Software-DE-DE.pdf 1.3 MB DE / DE
    MAN Software Communicator MA8920-Software-FR-FR.pdf 1.4 MB FR / FR
    MAN Zulassung EX Typ 8690 MA8690-ApprovalEX-DE-DE.pdf 1.1 MB DE / DE

    Software

    Description
    Filename
    Filesize
    Language / Country
    SOW Buerkert Communicator 3.0.5 00689176_BuerkertCommunicator_3_0_5.zip 72.1 MB
    SOW Initiation Files EDS A.02 00675687_008691_KONF_D.zip 5.1 kB

    EU Declaration

    Description
    Filename
    Filesize
    Language / Country
    ABD EU-DoC|EU Declaration 1000149263-B_8691_EU-DoC.pdf 1.4 MB EN,FR,DE
    ABD EU-DoC|EU Declaration 1000149263_C_8691_EU-DoC.pdf 1.3 MB EN,FR,DE

    Interactive Animation

    Description
    Filename
    Filesize
    Language / Country
    3D_ANIMATION 3D-Animation - 8691 3D-PDF-DE-PV-C8691_pdf.pdf 3.5 MB DE
    3D_ANIMATION 3D-Animation - 8691 3D-PDF-EN-PV-C8691_pdf.pdf 3.5 MB EN
    Position
    Item No.
    Description
    918038 round-plug fem. M12 4-pol. w.cable 5m PV