Four-wire
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Product
AC Current Isolated Sensor Two / Four Wire Transducer
TSCT (Average Sensing) / TFCT (TRUE RMS)
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Kusam Electrical Industries Limited
• Transform Input: AC 5~400A directly into DC 4~20mA, no need external CT.• Suitable for application with high waveform distortion :(Frequency converter, Motor, SCR )• High accuracy ＜0.5%• High response time• High stability, easy connection.
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Product
SparkFun Load Sensor Combinator
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The SparkFun Load Sensor Combinator is a bare PCB that combines four load sensors into a standard four-wire Wheatstone bridge configuration. If you open up an electronic bathroom scale, you’ll find a large rat's nest of wires. The Load Sensor Combinator was created to combine the 12 wires found in a bathroom scale into the standard four-wire Wheatstone bridge configuration.
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Product
Panel-mount Type Conductivity Meter (Four-Wire Transmission, 2-channel)
HE-960CW
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HE-960CW connects conductivity sensor (ESH /FS Series) and measures conductivity and temperature in the sample water. It is ideal for the conductivity control of the purified water, pasteurized water, and water for injection that are used in the production of pharmaceuticals.And we have developed a lineup of electric conductivity sensors that can be used in conjunction, from the conventional insertion type to the flow-through type with improved cleaning and sanitary properties.
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Product
Independent 24-bit Sigma-Delta Type (One for Each Channel)
TR1
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The TR1 provides 8 channels which can be individually programmed as a Thermocouple (TC) or a Resistance Temperature Detector (RTD) measurement interface. When configured as a TC, the channel can interface with virtually all thermocouple-type NIST temperature ranges. When configured as an RTD, the channel can interface to two, three and four-wire platinum RTD sensor configurations.
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Product
Panel-mount Type Resistivity Meter (Four-Wire Transmission, 2-channel)
HE-960RW
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HE-960RW connects resistivity sensor(ERF sereies) and measures resistivity and temperature in the sample water.This resistivity meter is ideal for such applications as the high-precision water monitoring employed at ultra-pure water plants used in semiconductor manufacturing.They utilize newly designed, high-precision, high-stability temperature measurement circuitry and a vastly improved temperature compensation function, an important element for measuring the resistivity of ultra-pure water.
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Product
PXIe-4147, 4-Channel, ±8 V, 3 A Precision PXIe Source Measure Unit
786888-01
Source Measure Unit
PXIe, 4-Channel, ±8 V, 3 A Precision PXI Source Measure Unit - The PXIe-4147 is a 4-channel source measure unit (SMU) ideal for high-pin-count applications. It features 4-quadrant operation, and each channel has integrated remote four-wire sensing for accurate measurements. The sample rate of the PXIe-4147 can reduce measurement times, capture transient device characteristics, and help you perform current-voltage (I-V) characterization of devices-under-test (DUTs). With a high-speed sequencing engine, you can synchronize SMUs with each other or with other instruments such as switches or high-speed digital test modules. Additionally, you can tune the PXIe-4147 response to any load to achieve optimum responses with maximum stability and minimum transients using SourceAdapt technology.
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Product
Portable Three-Phase Energy Standard
PEWM-3C
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The three-phase energy standard PEWM-3C is used for quick on-site tests of all types of electricity meters – for active, reactive or apparent energy, two-, three- or four-wire connection. Three voltages and three currents are measured at the same time. The current can be measured either via direct connection up to 10A (class 0.1), or with three current clamps (CC) to 120A, 150A or 1000A (class 0.2).
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Product
Micro-Ohmmeters
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The Micro-ohmmeter performs reliable low resistance measurements with test currents to 10A and resolution to 1. Uses a four-wire Kelvin bridge method, which eliminates test lead resistance for a measurement accuracy of 0.25%.
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Product
Resistance Meter
MT16-4L
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М-module МТ16-4Л is a mezzanine module (hereinafter referred to as a mezzanine), designed to measure the resistance of resistive sensors using a four-wire measurement circuit in sixteen channels (sixteen-channel digitizer). М-module МТ16-4Л is installed on the mezzanine carrier - module НМ-М and is connected to it via a local information highway. Up to four mezzanines of various types can be installed on the NM-M module. The NM-M module, together with the mezzanines installed on it, forms a VXI module of the C-1 size and is used to create information measuring VXI systems.
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Product
Transformer Winding Resistance Tester
KRI 9310
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KRI 9310 adopt Kelvin four-wire testing method, which effectively eliminates the influence of the resistance of the test line on the test results. It can be able to increases the current to 10A by which can test extremely low resistance to 0.01 Ω(such as amorphous alloy, Copper-nickel, nickel-chromium-iron, iron-chromium-aluminum etc). For the tested objects with high resistance value (CT/PT), the instrument can extend the range to 20 kΩ，so the wide resistance test range enables KRI9310 can cover 80% of the power transformer products on the market and switchgear bus-bar cable etc. The power of the tester use the built-in rechargeable lithium battery that can test hundreds of transformers by one time charging.
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Product
Short Circuit Locator for Power Cables
A910
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The A910 is a short circuit locator designed for fault location in power cables. The instrument measures the ratio of the resistances of the two sections of failed conductor using a four-wire "Kelvin" connection, thus eliminating errors associated with contact resistances of the test leads. With the A910 you can determine if the cable has more than a short and locate the first and the last fault. The instrument locates fault with an insulation resistance up to 5 Mohms in cables that have a total resistance greater than 5mohm (approximately 90 m of 300 sqmm cable) and less than 30 kohms. The distance to fault is measured as a percentage of the total length of cable and is displayed on a large LCD display.
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Product
Field-installation Type Electric Conductivity Meter (Four-Wire Transmission, For Low-concentration)
HE-200C
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HE-200 connects conductivity sensor (ESH/FS Series) and measures conductivity and temperature in the sample water. It is suitable for monitoring pure water/boiler water drainage recovery control and inline measurement of pharmaceutical water conductivity according to USP<645> quality guidelines.
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Product
Panel-mount Type ORP Meter (Four-Wire Transmission)
HO-480
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The HO-480 industrial ORP meter is an ORP converter for measuring the oxidation-reduction potential of all types of solvent.Being combined with a lead-free sensor, it makes measurements in a way that is kind to the environment.
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Product
Field-installation Type MLSS Meter (Four-Wire Transmission)
HU-200SS
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HU-200SS connects immersion type MLSS sensor (SS-90) and measures MLSS in activated sludge. A wide range (0-2000mg/L)of SS contents can be measured with excellent reproducibility using the near-infrared radiation transmission method. Any of the calibration curves of MLSS, Clay (inorganic mud) and Kaolin may be used as standard substances of SS. If "MLSS" is selected for an activated sludge treatment tank, "Clay" for the precipitation treatment of construction sludge, or "Kaolin" for white mud, a concentration can be obtained closer to an analyzed value.
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Product
Panel-mount Type pH Meter (Four-Wire Transmission)
HP-480
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HP-480 connects pH sensor and measures pH and temperature in the sample water. Suitable for monitoring and control of various production processes and wastewater treatment, etc. Many types of electrodes are available to match the sample properties.
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Product
Programmable Decades
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Programmable, highly precise and stable resistance decades. They are used to simulate temperature sensors and to precisely set resistances. Sensors Pt-100, Pt-200, Pt-500, Pt-1000, Ni-100 and Ni-1000 in the range from -200 to +850 degrees C can be selected as temperature simulators. The temperature is entered via the keyboard or the data interface. The corresponding resistance appears at the outputs in two, three or four-wire technology.
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Product
Resistance Measurement
PROMET
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High-precision micro-ohm measuring systems with adjustable DC test current for determining resistances on circuit breakers or inductive loads such as transformers, for example. The high-precision ohm meters of the PROMET series are used to determine very low electrical resistances in the µΩ range. The adjustable test current of up to 600 A in combination with a four-wire measuring method delivers measurement results which meet stringent accuracy requirements. State-of-the-art power electronics coupled with a robust design guarantee excellent reliability for use as a portable device in switching stations and industrial environments. Typical applications include determining the contact resistance of switchgear devices and determining the resistance on inductive loads such as transformers.
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Product
Panel-mount Type Dissolved Oxygen Meter (Four-Wire Transmission, Membrane Type)
HD-480
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The HD-480 industrial dissolved oxygen meter takes sequential measurements of the concentration of dissolved oxygen, which is an indicator used in the management of activated sludge tanks in waste water processing, and the quality of the water in boilers, or rivers and waterways.As there is no need to exchange the membrane of the disposable sensor included, it is easy for anyone to use.
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Product
Digital Multimeters
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*5½-digit resolution to 8½-digit resolution DMMs*6ppm basic voltage measurement accuracy on the 8½-digit DMM for calibration laboratories*Fast, 1 Msample/s sampling speed to capture complex, low level current profiles from IoT devices or other wireless devices*Sensitivity of 1 µΩ and 1 pA to test low power devices for research, design, and manufacturing test*A wide range of measurement functions such as DC and AC volts, DC and AC current, two- and four-wire Ohms, continuity, frequency, period, RTD, thermistor, and thermocouple temperatures, diode test, and capacitance*Numerous interface options including LAN/LXI, USB-TMC, GPIB, and RS-232 for data acquisition and automated testing*Intelligence to execute tests and create customized measurements with minimal PC interaction*Measurement expansion up to ten channels
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Product
Industrial pH Meter (Four-Wire Analyzer)
HP-200-K
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One-touch calibration function Realizes gentle measurement by combination with lead-free ORP electrode
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Product
Field-Installation Type ORP Meter (Four-Wire Transmission)
HO-200
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HO-200 connects ORP sensor and measures ORP and temperature in the sample water. It is suitable for neutralization reaction treatment management of aeration tank, denitrification tank, etc.
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Product
RS-232 to RS-422/RS-485 Interface Converter
Model 9365
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FEATURES: DIN Rail Mountable; User Selectable RS-422 or RS-485; User Selectable Two- or Four-wire RS-485; DataSpy® LCD Display; Intelligent Control of RS-485 Transmitter and Receiver; DTE/DCE Compatible; Data Rates Up to 115.2 kbp.
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Product
Milli-OHM Meter
MR-30
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*Double LCD Display*300,000 counts resolution*Measurement Range: 30mΩ~3MΩ*0.05% accuracy*20 Standard User setting memory sets*Sorting function and Relative percentage function*PASS/FAIL test result alarm*Computer Remote Manual and Auto Scan function*Manual and Auto Channel select*Sampling Rate: 30 sample/sec*High Resolution Temperature compensation and measurement*DUT Four-wire method*USB interface
