Alliance Sensors Group offers the model “S1A” – DIN rail mountable, push button calibrated AC-LVDT Signal Conditioner. Alliance Sensors Group offers superior technical support and customer service. Since the S1A can be used with most manufacturers’ LVDTs, including half bridge and GE “buck-boost” models, you can rely on ASG’s experience to help you with any technical issues that may arise either for LVDTs or signal conditioning.
The S1A offers a choice of 4 excitation frequencies, 8 analog DC outputs (6 DC voltage and 2 current loop outputs) and RS-485 digital communications. Ideal applications for the S1A module include turbine control systems, steam valve position feedback, and other types of redundant control systems that use LVDT position sensors.
In the event of a failure, a new S1A DIN rail module can be “hot swapped” into an existing installation, with initial calibration data having been saved, then reloaded via the RS-485 port. Standard signal conditioners would require a full calibration. Through the digital communications link, the S1A also can be setup remotely using a computer, which simplifies operations if the unit is already installed on a DIN rail in a cabinet.
For installations where there are multiple position sensors, the S1As can be master/slaved to prevent cross talk between sensor signals. Should a master fail, ordinary signal conditioners will revert back to their own oscillators, opening them to the same cross talk the master/slave configuration was designed to prevent. If the S1A master were to fail, the first slave would become a new master for the other slaves.
Other significant features of the S1A include:
- Color coded plug-in connections
- Self-diagnostics for LVDT winding failures or cable disconnection.
- Detected output errors drive analog outputs out of range, which is especially important for applications using redundant LVDTs
- Extended two year warranty offers value to systems integrators who buy units long before they are put into use
Alliance Sensors Group
www.alliancesensors.com