Alliance Sensors Group introduces its latest LVDT signal conditioner, the S2A. An LVDT signal conditioner, it boasts smart and fast LVDT/RVDT setup and works with a wide 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 that no other manufacturers have even considered, providing confidence that the unit has not been compromised. 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 crosstalk
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.
The S2A DIN-rail-mounted module can be “hot swapped” into an existing installation, with original calibration data saved and then reloaded into a new module via its RS-485 port. Conventional signal conditioners would require a full calibration. The S2A also can be setup remotely using a computer connected through the digital communications link to the RS-485 bus, which simplifies operations if the module is already installed on a DIN rail in a cabinet.
For installations involving multiple position sensors, the S2As can be master/slaved to prevent cross talk between sensor signals. Should a master fail, conventional signal conditioners will revert to their own oscillators, opening them to cross talk the master/slave configuration was to prevent. If the master S2A fails, the first slave becomes a new master for all the other slaves. For more information, visit Alliance Sensors Group.