LD291 Intelligent Pressure Transmitter

  • The LD291 is a smart pressure transmitter for gauge and level measurement.
  • It is based on a field-proven capacitive sensor that provides reliable operation and high performance.
  • The LD291 is the economical alternative in routine gage pressure measurement. This lightweight
    design eliminates the need for mounting brackets and transmitter supports in many applications.
  • The model LD291 offers digital HART based communication simplifying calibration and providing remote diagnostics. Also, an optional LCD meter can be added to provide additional operations and local indication.
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Description

  • 0 ~ 125 Pa to 0 ~ 25 MPa
  • 0 ~ 0.5 inH20 to 0 ~ 3600 psi
  • ± 0.075% Accuracy
  • 40:1 Rangeability
  • Wetted parts in 316 SS, Hastelloy
  • Totally digital; including sensor, electronics and communication (Except LD290)
  • Digital LCD display
  • Weather proof, explosion proof and intrinsically safe
  • Self diagnostics
  • Three options of technology

HART – 4 to 20 mA

  • Updating time of output current in 100ms;
  • Improved performance due to dedicated math co-processor;
  • FMEDA (Failure Modes, Effects and Diagnostic) Analysis;
  • MTBF (Mean Time Between Failures) of 239 years;
  • MTTR (Mean Time to Repair) of 18 minutes;
  • MTTF (Mean Time to Failure) of 239 years;
  • Applicable in safety areas according to SIL (Safety Integrity Level) requirements;
  • Write protection by hardware;
  • Designed and manufactured according to ISO 9001 standards;
  • Zero, span and damping adjustment through HART® local switches (only if fitted with display);
  • Easy update for FoundationTM fieldbus and PROFIBUS PA technologies.

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