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Rosemount 644 Temperature Transmitter , Hart Temperature Transmitter Field Mount

Categories Pressure Temperature Transmitter
Brand Name: Emerson-Rosemount
Model Number: 644
Certification: CE
Place of Origin: Singapore
MOQ: 1
Price: 400 USD
Payment Terms: T/T / Paypal
Supply Ability: 50
Delivery Time: 1-2 week
Packaging Details: New Original Box
Category: Transmitter
Type: Tempreture Transmitter
Input: Dual and single sensor
Output: Signal 4-20 mA /HART protocol
Housing: Field mount, DIN A head mount or rail mount
Display/Interface: LCD Display or LCD Display with Local Operator Interface (LOI)
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    Rosemount 644 Temperature Transmitter , Hart Temperature Transmitter Field Mount

    Rosemount 644 Temperature Transmitter Hart protocol Transmitter Sensor

    All of Rosemount orders will be ordered acorring to your requirements!


    1. Functional specifications

    InputDual and single sensor capability with universal sensor inputs (RTD, T/C, mV, ohms)
    OutputSignal 4-20 mA /HART protocol, FOUNDATION fieldbus protocol, PROFIBUS PA protocol
    HousingField mount, DIN A head mount or rail mount
    Display/InterfaceLCD Display or LCD Display with Local Operator Interface (LOI)
    DiagnosticsBasic diagnostics, Hot Backup capability, sensor drift alert, thermocouple degradation, min/max tracking
    Calibration OptionsTransmitter-sensor matching (Callendar-Van Dusen constants), 5-point calibration
    Certifications/ApprovalsSIL 2/3 certified to IEC 61508 by an independent 3rd party, hazardous location, marine type, see full specs for complete list of certifications
    2. Physical specifications​-Electrical connections
    Rosemount modelPower and sensor terminals
    644 Head (HART)Captivated screw terminals permanently fixed to terminal block
    644 Head (F OUNDATION Fieldbus/PROFIBUS)Compression screw terminals permanently fixed to the terminal block
    644 Field Mount (HART)Captivate screw terminals permanently fixed to the terminal
    644 Rail (HART)Compression screw permanently fixed to front panel


    Rosemount 644 Family of Transmitters
    Fit your needs within one model family with a customizable transmitter design
     DIN Head mount, field mount, and rail mount form factors
     4-20 mA/HART ® with Selectable Revisions, F OUNDATION ™ Fieldbus or PROFIBUS ® PA Protocol
     SIL3 Capable: IEC 61508 certified by an accredited 3rd party agency for use in safety instrumented systems up to SIL 3 [Minimum requirement of single use (1oo1) for SIL 2 and redundant use (1oo2) for SIL 3]
     Enhanced display with Local Operator Interface (LOI)
     LCD display
     Integral Transient Protection
     Enhanced accuracy and stability
     Transmitter-Sensor Matching with Callendar Van Dusen constants
     Variety of enclosures

    Rosemount™ 644 Temperature Transmitter

    Engineered for versatility, the Rosemount 644 Temperature Transmitter is available with HART®, FOUNDATION™ Fieldbus or PROFIBUS® protocols in head, field or rail mount styles and a variety of enclosure options. By adding a Local Operator Interface (LOI), you can update your transmitter configuration in the field without tools. For diverse application requirements, this transmitter includes diagnostic capabilities, such as Hot Backup™ capability, sensor drift alert and thermocouple degradation.

    Rosemount 644 selection guide

    1. Rosemount 644 HART Transmitters
    2. Rosemount 644 F OUNDATION Fieldbus
    3. Rosemount 644 PROFIBUS PA

    Ordering Information( A part )

    The Rosemount 644 is a versatile temperature transmitter that delivers field reliability and advanced accuracy and stability to meet demanding process needs.
    Transmitter features include:
     HART/4–20 mA with Selectable Revision 5 and 7 selectable (option code A), F OUNDATION Fieldbus (option code F) or PROFIBUS PA (option code W)
     DIN A head mount, field mount, or rail mount transmitter styles
     Dual sensor Input (option code S)
     SIS SIL 2 Safety Certification (option code QT)
     LCD display (option code M5)
     LOI (option code M4)
     Advanced diagnostics (option codes DC and DA1)
     Enhanced transmitter accuracy and stability (option code P8)
     Transmitter-Sensor Matching (option code C2)

    Dimensional drawings​ ( A part )

    If you need more order information , we can send you the complete datasheet.


    1.Certificate of Origin

    2.Calibration Certificate

    3.Material Traceability Certification

    Rosemount Temperature Transmitter 644 Pictures:

    Rosemount items we sold before:

    Good Service in WTL:
    >We offer high quality, fast delivery, competitive price for Rosemount.
    >Please send your RFQ to get the latest price.
    >Normally, we will ship the items in 1-2 weeks after receive the payment.
    >We can ship to you by UPS/DHL//EMS/Fedex. Please contact us and we will use your preferred ways.
    >We have a large stock and the prices are variable, so sometimes the prices we post are not accurate. If needed, please contact us for specific prices.


    WTL is not liable for any personal injury or property damage resulting from the use of this equipment. It is

    buyer's responsibility as to the safe handling & operation of this equipment and to verify equipment is

    compliance to their machinery.

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