AC-LVDT Signal Conditioner Is Tamper Proof

Alliance Sensors Group’s S2A LVDT signal conditioner offers smart and fast LVDT/RVDT setup and works with the widest range of LVDTs, RVDTs, and inductive half-bridge sensors including 3-wire GE LVRTs and GE gas turbine buck-boost style LVDTs. The signal conditioning module has cyber security tamper prevention and notification features, providing confidence that the unit has not been compromised. S2A operating features include:

  • Push button calibration
  • Built-In null indication
  • 4 excitation frequencies, 8 analog DC outputs (6 DC voltage and 2 current loop outputs)
  • 16 addresses for RS-485 digital communications
  • Hot swap capability
  • Advanced master/slave capability to reduce cross talk  

S2A diagnostic features include:

  • Shorted primary,
  • Disconnected or open primary,
  • Shorted or grounded secondaries,
  • Disconnected or open secondaries,
  • Analog output shorts or opens,
  • Common hook-up errors that can occur during initial installation and setup.
  • Cybersecurity to prevent tampering and notify main system operations of tamper attempt.
  • Real-time recalibration to tweak the analog output after the mechanical system’s warmup.
  • Recalibration from the module’s front panel or over the RS-485 bus.
  • Differential input which common modes out most ground-loop developed noise signals.
  • Backward Compatible to perform exactly as the legacy S1A conditioner.

Other features include:

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  • Color coded plug-in connections which permit easy pre-wiring in a rack and hot swapping
  • Self-diagnostics for LVDT winding failures or cable disconnection. 
  • Detected output errors or faults drive analog output out of range, which is especially important for applications using redundant LVDTs
  • A two-year warranty offers value to systems integrators who may purchase modules long before they will be put into service  

For more information, peruse S2A AC-LVDT signal conditioner, datasheet, manual, and/or quick start guide.

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