Signal conditioning
Signal conditioning for industrial process control applications
A signal conditioner from NewTek pairs with AC LVDT, RVDT or LVRT half bridge to provide DC output for industrial process control applications
T
he NTC-6000 LVDT Signal Conditioner from NewTek Sensor Solutions pairs with nearly any AC-
operated LVDT, RVDT or LVRT half bridge to deliver reliable position feedback in 4-20mA, 0-5V, 0-10V or RS-485 formats for process control systems requiring digital output. DC-operated position sensors cannot
perform reliably in industrial applications with harsh environments. Void of internal
electronics, AC-operated sensors operate with higher accuracy and longevity in areas with high temperatures, vibration and shock. But they cannot provide digital output on their own. Configurable with LVDTs, RVDTs and VR half bridge position sensors, the NTC-6000 LVDT Signal Conditioner conver ts unconditioned position feedback from AC-operated sensors to digital output for use by PLCs, data acquisition systems, data loggers and more.
How IT woRks In operation, operators can connect the NTC- 6000 up to 100 feet away from an AC-operated sensor that remotely operates in the extreme environments of an application. For example, the AC-LVDT could be installed on a packaging line with extreme vibrations and shock, verifying critical dimensions, roller or tension arm location, or product flatness while the signal conditioner can be mounted remotely in a benign location. As the AC-operated LVDT Linear Position
Sensor does not contain any internal electronics, it requires external excitation. The NTC-6000 LVDT Signal Conditioner provides that AC excitation while retrieving the sensor’s unconditioned position output for conversion into analogue or digital output that is communicated to a control system. For multiple sensor requirements, units digitally communicate with up to 16 devices simultaneously and are connectable in a
60
master/slave configuration. NTC-6000 LVDT Signal Conditioner
realises the full benefit of using AC-LVDTs in a variety of applications including factory automation, material testing, turbine control systems, steam valve positioning, packaging equipment and gauging. The signal conditioner features: Quick and easy setup with front panel
push buttons and LED indicators Electable excitation frequency, analogue
outputs and bandwidth Automatic excitation synchronisation for
multiple unit systems reducing or eliminating cross-talk between sensors Self-diagnostics for LVDT failure,
disconnect, or shor t circuit Digital communications via RS-485 2-wire
multi-drop bus Hot swapability — setup can be saved
and reloaded via RS-485 por t Cybersecurity lockout and tamper detect. Flexible design gives users the option
to receive one of several DC outputs including voltage ranges, 4-20 mA current, or RS-485 digital. Developed in-house by NewTek Engineering, the NTC-6000 is available in-stock for quick delivery. Application engineers can answer technical questions or par tner with customers for custom adaptations and designs.
NewTek Sensor Solutions
www.newteksensors.com
August 2019 Instrumentation Monthly
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