Emerson HART Communicator Model 268

Fisher-Rosemount HART Communicator Model 268
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Emerson Process Management HART Communicator Model 268
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Manual Datasheet

Intrinsically safe interface for use with Rosemount smart transmitters.



  • Common interface for all Rosemount SMART FAMILY® instruments
  • Digital communications via the HART protocol without interruption of transmitter output signal
  • Easy to operate
  • Microprocessor-based electronics
  • Large 4 line x 20 character display



  • Memory: Nonvolatile memory retains contents when unit is powered down, so long as the battery source is supplying power.
  • Power Supply: Five AA 1.5 V batteries (rechargeable optional)
  • Temperature Limits:
    • Operating: 32 to 122 °F (0 to 50 °C)
    • Storage Limits: -4 to 158 °F (-20 to 70 °C)
  • Humidity Limits: 0 to 95% RH
  • Hazardous Locations Certifications:
    • CENELEC/BASEEFA Intrinsic Safety Certification
    • Factory Mutual (FM) Intrinsic Safety and Non-incendive Approval
    • Canadian Standards Association (CSA) Intrinsic Safety Approval
    • Standards Association of Australia (SAA) Intrinsic Safety Certification
  • Display: 4-line liquid crystal display with 20-character line width
  • Keyboard: Complete alphanumeric keyboard, six dedicated function keys, and four software-defined keys
  • Weight: 2 lbs (0.9 kg) including batteries