Press Releases
Measure 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.
More Simply and Effectively Monitor Heating Element Controls with ATH Series Current Transducers
Accurately measure sinusoidal, distorted, or pulsed current wave shapes without additional hardware and its associated costs and space requirements
NK Technologies introduces the ATH Series AC Current Transducer. The ATH is specifically designed to monitor power controlled by phase-angled fired, burst fired or time proportioned silicon-controlled rectifiers (SCRs) in heating applications, without requiring an external current transformer or shorting blocks. Patent pending Time Integration functionality incorporated in the ATH design provides an output signal directly proportional to the RMS amperage to ensure accuracy regardless of the AC current wave shape. The sensor samples the AC current continuously, updating its own time base when the current returns to the load after a pause. Based on the magnitude of the burst and the time interval between bursts, the sensor output represents the amount of power used by the connected load.
ATS Current Transducer/Switch Named a 2012 Plant Engineering Magazine Product of the Year Award Winner
ATS receives Silver award in the electrical controls category
The ATS Current Sensing Switch and Transducer from NK Technologies has received the Silver award for Electrical Controls in the 2012 Plant Engineering magazine Product of the Year contest. The ATS series is a compact 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.
Monitor Distorted AC Current with New ATPR Series Current Transducers
“E-Out” AC current transducers combine a transformer and true RMS signal conditioner in a single package
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.
New DS1 Current Sensors Detect Very Low DC Current Levels in Compact, Simple-to-Use Package
NK Technologies introduces DS1 DC Current Sensors. DS1 current sensors feature a compact and non-adjustable one-piece design to deliver reliable detection of very low DC current levels in a wide range of applications. Their compact and non-adjustable one-piece design simplifies installation, even in crowded control cabinets. DS1 current sensors can be powered by any DC voltage between 10 – 28 volts and use the same circuit as the one being controlled, or a separate source of voltage to power the sensor as long as the circuit being controlled uses the same ground. This further simplifies installation and operation when compared with other current sensors.
Significantly Simplify Current Monitoring and Help Minimize Downtime with ASL Switches
NK Technologies introduces ASL Series AC Current Operated Switches. The ASL series 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.
Quickly and Easily Convert Any Standard Sensor Output to Modbus Format with New ADC Signal Converters
NK Technologies introduces ADC Series Analog to Digital Signal Converters. The ADC series readily accepts analog signals from up to eight loop or separately powered current, voltage, temperature or any other parameter sensor, and seamlessly converts them to a digital signal output that interfaces with the industry standard Modbus RTU digital protocol using a single network address. DIN rail mounting speeds installation. Sensor loop power supplied by the converter can eliminate the needs for a separate DC power supply. The ADC series can be factory-set for 120 or 240VAC power supplies.