Frequency output current transducers released
NK Technologies' current transducers are designed as an input to high-speed counter and intended for use when analog inputs aren't available, the company said.
NK Technologies ATQ Series Frequency Output Current Transducers have a patented open collector transistor frequency output design. The ATQ series is used as an input to high speed counter or frequency PLC modules, panel meters or programmable relays, to accurately monitor machine current usage to within ± 1% of range. Multiple ranges from 0-2 to 0-200 amps are available to provide resolution that fits the needs of the particular applications. A split-core enclosure simplifies installation by eliminating the need to disconnect the monitored conductor to install the sensor. The ATQ series are reportedly intended for use where no analog inputs are available.
“Users will benefit from jumper-selectable ranges, along with reduced inventory requirements because with the ATQ series a single sensor is able to satisfy a wider variety of range needs. These current transducers also eliminate insertion loss, and the output of each unit is magnetically isolated from the input to maximize safety,” said Philip Gregory, president, NK Technologies.
The ATQ series is reportedly designed for motion and motor control applications such as pump, grinder and fan motor monitoring status, belt jam sensing in conveyor applications and motor control in deburring / brush operations. They are also effective as an electronic shear pin to detect strain. Additionally, ATQ current transducers can be used for measuring current use in machine tools, polishing and cutting operations where a small PLC has sufficient capacity to accept the sensor inputs measuring speed, time-of-use and electrical demands of the equipment.
– Edited by Chris Vavra, Control Engineering, www.controleng.com