Tuesday, October 28, 2014



Red Lion issued a press release today to announce that our Crimson® 3.0 software has reached a milestone with communication support for more than 300 industrial protocols. Protocol conversion is a key element needed to make the concept of the Connected Factory a reality, empowering plant managers to adapt existing equipment including drives, PLCs and HMIs to drive efficiency while reducing total cost of ownership in industrial environments.

With just a few clicks, Crimson converts protocols for disparate industrial devices, allowing them to share work-in-process, machine status and other information. Deployed on our award-winning Graphite® HMI panels, ProducTVity Station™, Data Station Plus or other industrial automation offerings, Crimson gives organizations the ability to boost productivity, optimize material usage and troubleshoot systems in real time. Supporting the simultaneous conversion of multiple protocols, the use of Red Lion’s Crimson-enabled products allow companies to easily integrate almost any PLC, PC or SCADA system for data collection, monitoring and control of factory floor equipment from different manufacturers.

We will demonstrate the power of Crimson’s protocol support for today’s Connected Factory live from PACK Expo 2014 booth 8747 in Chicago on November 2-5. Stop by to take the “Crimson Challenge.”

Tuesday, October 21, 2014



NK Technologies solid-core case ATH Series Current Transducers with Time Integration now accommodate 120 VAC power supplies for use in heater monitoring applications. ATH current transducers are also available in solid-core or split-core 24 volt models. ATH current transducers are compatible with most automation systems and are ideal for monitoring burst fired time proportional control of heating systems. The ATH series also feature a simple two-screw panel mount and optional DIN rail brackets for quick and easy installation.

These current transducers are factory calibrated and feature industry standard outputs. They provide an output signal directly proportional to the RMS amperage and are accurate even though there are periods of time when the heating circuit is intentionally off, using no power. Their design enables the sensor to remain installed over the conductor while the heating circuit is powered or when it is being serviced, regardless of what may be connected to the output terminals and even when there is nothing connected. The built in signal conditioning eliminates the need for a shorting block on the output, vastly improving safety over conventional current transformers.

NK Technologies offers no-cost test and evaluation units to qualifying OEMs. Visit the Engineering Resources section of NK Technologies website for access to numerous application notes and a technology white paper on current sensing technology.

Friday, October 17, 2014



NK Technologies announces that ASL Series AC Current Operated Switches have been selected as a Golden Mousetrap Finalist in the Components, Hardware and Interconnects category for Electronics and Test. The Awards celebrate the companies, products, and people who are energizing North American design, engineering, and manufacturing. The Golden Mousetrap Awards were announced at the Golden Mousetraps Ceremony held February 11, 2014 at the Anaheim Marriott.

Design News’ industry leading editors worked tirelessly to go through the many entries received to come up with the products most deserving to be on their list of finalists.  The finalist entries were then sent to the entire editorial team, as well as their distinguished Advisory Board who chose the winners.

“Current monitoring helps ensure that applications operate at the desired current level, while enabling users to take corrective action before more significant and costly problems resulting from over- or under-load conditions can occur,” says Philip Gregory, President, NK Technologies. “The ASL series provides a current-operated solid-state contact that is powered from the monitored circuit. It is unique in that the trip point adjustment uses a single turn potentiometer, meaning the installer can quickly and easily set the point at which the output changes state when the monitored circuit is not energized by simply turning the adjustment arrow to the current magnitude needed.”

The ASL series Current Switch features a patent pending and user-selectable linear setpoint adjustment, enabling users to reliably monitor current, simply, in a wide range of applications. The ASL series is available in a panel mounted solid- or split-core enclosure to simplify installation. An easily established contact actuation point can be set with no load present and a two second delay ignores motor inrush current upon energization. Magnetically isolated output maximizes safety and eliminates insertion losses, and solid-state reliability eliminates periodic maintenance or calibration requirements. No external power source is required for operation.



NK Technologies introduces APT Series Power Transducers. The APT measures three phases of current and voltage and produces an industry standard analog signal proportional to the watts used. The monitor uses current transformers to measure the amperes, and the line voltage connects directly to the transducer, up to 600 VAC. By comparing the instantaneous current flow with the circuit voltage, the power factor, whether leading or lagging, allows the APT transducer to produce a signal directly proportional to the wattage used. The APT power transducer can be configured to accept 5 A secondary current transformers, or NK Technologies’ ProteCT™ low voltage output sensors. Either type of current sensing will produce an accurate output signal to help identify areas of excessive energy consumption and allow intervention to reduce demand.

“In many applications, monitoring power usage produces a more accurate result than measuring current use alone,” explains Philip Gregory, President, NK Technologies. “This accuracy makes APT Power Transducers idea for many applications including plant energy management, conveyors and pump monitoring. It’s been used to measure the power usage of a single piece of equipment, an area of a plant, or the entire facility. It can detect conveyor jams and overloads, and check that belts are loaded properly. The APT can also detect dry run from clogged pump intake or discharge lines and monitor impeller cavitation and bearing wear.”

APT Power Transducers are externally powered and offer 4-20 mA, 0-5 VDC or 0-10 VDC output. They are housed in a compact DIN mounted case with a low profile that reduces the need for large cabinet depth requirements. Their finger safe terminals are clearly labeled for quick installation.

Wednesday, October 15, 2014



NK Technologies introduces ATPR “E-Out” Series AC Current Transducers. ATPR current transducers combine a current transformer with a true RMS signal conditioner in a single package. This enables the ATPR series to produce a 0-5 or 0-10VDC RMS output on distorted waveforms located in the output of variable frequency drives, phase angle fired heating controls, and on linear loads in “noisy” power environments.

“The ATPR series provides true RMS sensing, meaning output is proportional to the current flowing in the circuit even with high distortion or harmonic loads,” says Philip Gregory, President, NK Technologies. “Field selectable ranges minimize inventory requirements and easily accomodate changes in load conditions, and a split core housing simplifies installation – users simply release the latch and snap it over the conductor. And the unit’s DC voltage output is ideal for data acquisition systems, panel meters or controllers with only voltage inputs available.”

The ATPR series is a perfect solution for monitoring the output of variable frequency driven loads, even when in bypass mode. They can also be used to measure phase angle fired heating controls and other SCR controlled loads. These current transducers respond quickly to element failure by monitoring current instead of temperature, and accurately measure power supply and ballast input power.

“Many building energy management controllers provide 0-5 VDC inputs, and many data loggers utilize 0-10 VDC inputs. ATPR series current transducers can be used in applications where the current wave is distorted or where it is sinusoidal with equal accuracy,” explains Gregory. “Even when the amount of distortion is not known users can be certain the measurement will be accurate. With this sensor the installer can use the industry standard for monitoring AC current, without having to use an external resistor that can add a degree of inaccuracy to the system.”

Engineers designing switched mode power supplies work diligently to improve pulse width modulation so the controlled load will have the cleanest power applied, reducing harmonics to reduce overheating of transformers and motors in addition to reducing zero-crossing noise. The methods for doing this are expensive, so distortion in these types of power supplies will continue for the foreseeable future. Variable speed drives, electronic ballasts, uninterruptible power supplies and other devices that use switched mode power supplies are sources of current sine wave distortion and require frequent monitoring. ATPR series current transducers are a simple and cost effective solution for monitoring distorted AC current.

Tuesday, October 14, 2014



NK Technologies introduces the ATS Current Sensing Switch and Transducer. The ATS series is a one piece solution that combines a limit alarm with an analog output signal transducer to monitor produced or consumed AC current up to 1200 amps, while magnetically isolating outputs and inputs to maximize safety. An innovative and patent pending rotary switch makes it easy for users to set the trip point. DIN rail mounting simplifies installation and provides an extremely secure mount that is resistant to conductor movement.

“The ATS series is an invaluable preventive maintenance tool for anyone responsible for monitoring high AC current loads. With the ATS series users can monitor air handling blowers, pumps, crushers and many other large loads with a single self-contained current switch, and the built-in analog signal helps users identify bearing wear and other mechanical problems before they result in unplanned and costly downtime,” says Philip Gregory, President, NK Technologies. “What’s more, their function is matched by their ease of use. With the ATS Series all that is required for operation is to snap the unit onto a DIN rail, connect it to a power source and connect the outputs to the controller.”

In contrast, monitoring high current loads often requires a current transformer sized for the maximum current that will be used and the 5 amp secondary of the current transformer is then connected to a shorting block for safety. The connection then runs from the shorting block to a signal conditioner to produce the analog output proportional to the current, or to a different type of signal conditioner to produce an alarm relay contact. Once these connections are made the controller can be connected to the signal conditioner outputs. It requires a great deal of time to interconnect these components, plus the time expended to adjust the signal outputs to match the primary load characteristics.