Press Releases
New Easy-to-Install AT/ATR-MS Series Current Transducer From NK Technologies Accurately Monitors Loads Up to 800 Amps
SAN JOSE, CA – NK Technologies introduces the AT/ATR-MS Series AC Current Transducer, combining 
a current sensing element and signal conditioner into a single package. The large, easy-to-install, split-core design allows for installation over existing conductors without the need to disconnect the load, even in applications with multiple conductors per phase. Whether installing over existing conductors or in a new control system, installation is very simple and quick.
AT/ATR-MS Series AC Current Transducer features include:
- Industry Standard Output: 4 – 20 mA signal proportional to the AC current, compatible with most automation systems
- Loop Powered: Use the “live zero” output to verify proper connections where the sensor output is 4 mA with no current through the sensing ring
- Split-core Case: Sensing window provides ample space for bus bar, single or multiple conductors
- Factory Calibrated: Eliminates zero and span potentiometer adjustment
- Meets UL, CUL and CE Approval
The MS Series is ideal for applications such as: monitoring large machines (measures current use to detect over/under current conditions before breakdowns occur); water delivery and treatment (detects open discharge lines and locates clogged filters and blocked intake to pumps); and grinding/shredding (allow for brief periods of drive overload when the processed product varies in density – if the blades hit something foreign the control will alarm or shut down the process.)
ABOUT NK TECHNOLOGIES
Founded in 1982, NK Technologies designed the first low-cost solid-state current sensing technology that underlies the industry today.
Today, NK Technologies is a leading provider of current sensing, ground fault detection and power monitoring products to the industrial and factory automation markets, with a product portfolio that includes more than 1300 models to satisfy a wide range of specific application needs. As the needs of these markets change, NK Technologies is well-positioned to respond with sophisticated new product designs and improved product functionality necessary to meet those applications.
NK Technologies, 3511 Charter Park Drive, San Jose, CA 95136; 800.959.4014; fax: 408.871.7515 sales@nktechnologies.com; www.nktechnologies.com.
New DC Current Transducer Remains Accurate Across Wider Range of Changing Temperatures
Greater simplicity and usability across PLC’s, DAQ’s and power management systems
SAN JOSE, CA – NK Technologies introduces the DT Series DC Current Transducer with ambient 
temperature compensation for increased usability and accuracy. The DT Series improved accuracy is due to a new patent-pending, microprocessor-based method of signal conditioning – sensor output is automatically adjusted as temperature changes (e.g. installers do not need to add algorithms to adjust output as ambient temperature varies), eliminating one of the primary issues with Hall Elements-based products. The added signal conditioning can also eliminate the need to heat/cool the control equipment encloser, reducing considerable expense.
The DT Series DC Current Transducer is ideal for applications such as measuring photovoltaic output in panels producing less than 50 amps or less than 100 amps, as well as monitoring smaller DC motors (used in conveyors and other material positioning equipment) and electrical heaters. Key features include:
- Temperature range: -20°C to +50°C
- 333mVDC, 5 or 10 VDC output proportional to DC current
- 5 VDC or 12 VDC powered
- Monitors circuits of 600 V or lower
- Housed in split-core package so existing wiring remains undisturbed
- “Finger-safe” power supply and output terminals
- Simple two-screw panel mount or DIN-rail brackets
- Safety standards: Designed to UL508,CE standards
NK Technolgies has filed for a patent on the DT Series circuit design, and plans to offer the temperature compensation feature in its other DC current transducers in the future.
ABOUT NK TECHNOLOGIES
Founded in 1982, NK Technologies designed the first low-cost solid-state current sensing technology that underlies the industry today.
Today, NK Technologies is a leading provider of current sensing, ground fault detection and power monitoring products to the industrial and factory automation markets, with a product portfolio that includes more than 1300 models to satisfy a wide range of specific application needs. As the needs of these markets change, NK Technologies is well-positioned to respond with sophisticated new product designs and improved product functionality necessary to meet those applications.
NK Technologies, 3511 Charter Park Drive, San Jose, CA 95136; 800.959.4014; fax: 408.871.7515 sales@nktechnologies.com; www.nktechnologies.com.
AGT Series Ground Fault Indicators from NK Technologies Combine Current Transformer & True RMS Signal in One Package
SAN JOSE, CA – NK Technologies offers a wide range of ground fault indicators, including the AGT Series Ground Fault Indicator. The AGT Series produces an analog 4–20 mA signal proportional to earth or ground fault current. When connected to a controller or data logger, NEC requirements for alarm can be met. Applications include current leakage detection (monitors heating or other loads to detect increases in leakage current) and accurate measurement of very light loads (providing faster response than temperature measurement).
Key features AGT Series features include True RMS Output – remains accurate on distorted waveforms like VFD or SCR outputs; Single Range – eliminates field range selection errors and zero and span pots; and Isolation – magnetically isolates output from the input for safety and eliminates insertion loss.
AGT Ground Fault Indicator Series specifications include:
- Output Signal: 4 – 20 mA, Loop-powered, True RMS
- Output Limit: 23 mA
- Accuracy: 1,0% FS from 10% to 100% of range
- Frequency Range: 40-400 Hz
- Power Supply: 24 VDC Nominal, 12-24 VDC
- Response Time: 600 ms (to 90% step change)
- Standards: UL, CUL 508 Listed
ABOUT NK TECHNOLOGIES
Founded in 1982, NK Technologies designed the first low-cost solid-state current sensing technology that underlies the industry today.
Today, NK Technologies is a leading provider of current sensing, ground fault detection and power monitoring products to the industrial and factory automation markets, with a product portfolio that includes more than 1300 models to satisfy a wide range of specific application needs. As the needs of these markets change, NK Technologies is well-positioned to respond with sophisticated new product designs and improved product functionality necessary to meet those applications.
NK Technologies, 3511 Charter Park Drive, San Jose, CA 95136; 800.959.4014; fax: 408.871.7515 sales@nktechnologies.com; www.nktechnologies.com.
NK Technologies Successfully Completes ISO-9001/ISO-14001 Recertification Audit
NK Technologies announces it has successfully completed an ISO-9001/ISO-14001 recertification audit of its quality assurance and environmental management systems. The systems have been consolidated in order to provide for efficiencies in managing both systems collectively versus separately. The four day audit was performed by SGS, an ANAB accredited independent third party registrar. Previously each management system had been audited independently as the initial ISO-9001 and ISO-14001 registrations were achieved at different points in time, 14 months apart. Ron Rapczynski, NK Technologies Quality Assurance and Environmental Systems Manager says: “The consolidation of both systems has reduced each systems maintenance and operating costs. More importantly however it has increased the effectiveness of each system. This translates to the company continuing to provide the highest quality products while being good stewards of the environment.”
NK Technologies offers an industry leading five year warranty in order to demonstrate the confidence it has in the design and manufacture of its products.
View Press ReleaseNK Technologies’ ASL Switches Honored as 2013 Design News Golden Mousetrap Finalist
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.
View Press ReleasePrecision Calibrated Current Switches Simplify Installation and Improve Performance for Limit Alarm Applications
NK Technologies introduces ASC Series Switches. Theses current operated switches are precision calibrated at the factory per customer specifications and guaranteed within 1% accuracy. Because the switch is factory calibrated, field installation time and effort is minimized resulting in significant cost savings and improved performance consistency.
View Press ReleaseMeasure Three Phase Wattage Consumption with the New APT Power Transducer
The APT produces an industry standard analog signal proportional to the real power used
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 600VAC. 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 5A 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.
Control Energy Costs by Using the New APN Series Digital Power Monitor
The APN Series measures three phases of current and voltage and computes fourteen values necessary to track power usage
APN Series Power Monitor measures three phases of current and voltage and computes fourteen values necessary to track power usage in the RS485 Modbus RTU format. The monitor uses current transformers to measure the amperes. The line voltage connects directly to the transducer, up to 600VAC.
Monitor DC Current with New DT 3-Wire Current Transducer
The newest addition to NK’s transducer family is in a very small, compact case with a 0-5 or 0-10 volt DC voltage output signal
The new DT Series 3-Wire Current Transducer from NK Technologies is specifically designed in a compact, space-saving case. The DT 3-Wire uses a common point for both power supply and output signal, and is factory calibrated for a single current range. This 3-wire method for DC current measurement keeps costs in check for projects where many sensors are needed. “Reliability is key in all monitoring applications, and there are gains in reliability whenever the number of connection points can be reduced,” explains Philip Gregory, President, NK Technologies. “With the addition of this new series of sensors, NK Technologies has provided the system designer even more choices to measure DC current.” The DT 3-Wire Current Transducer features industry standard outputs of 0-5 or 0-10 VDC proportional to the DC current. It is powered by 24 VDC, factory calibrated, and compact and easy to install. It’s commonly used in applications like photovoltaic panel monitoring, hoists, DC motor protection and wind driven generators. The DT Series complements NK Technologies’ existing DLT Series of 4-–20 mA current output sensors. When specified controllers can read only voltage output sensors, the DT 3-Wire provides the same space saving properties without the need to add an external dropping resistor, consequently removing another place where trouble could occur.
Monitor Power with Flexible Cable-type Current Transformers
The new CTRC AC Current Transformers offer a flexible coil design that can be installed over multiple conductors or bus assemblies and requires very little space
The new CTRC AC Current Transformers from NK Technologies monitor circuits up to 2000 amps and produces a safe, low voltage output proportional to the RMS current value. This output is designed as an input to a power monitor or transducer, replicating the AC wave shape with phase angle resolution better than 2°. The flexible coil design allows the cable to surround multiple conductors or bus assemblies regardless of shape and eliminates the magnetically permeable core of standard current transformers while providing excellent isolation, sensing only the magnetic field of the phase inside the loop. The CTRC can be used in any power monitoring application.