Four-wire
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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
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
Electrical Testing
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Innovative Testing Solutions, Inc.
Our specialty is Direct Current automotive components. We perform product validation and design verification testing on both electrical components and systems. Also, we perform warranty investigation testing and failure analysis. We have voltage capabilities to 300 volts and current capabilities to 1000 amperes. Both two-wire and four-wire resistance measurements are supported from NanoOhms to GigaOhms.
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Product
Field-installation Type Turbidity Meter (Four-Wire Transmission, High-sensitivity)
HU-200TB-H
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HU-200TB-H connects flow-through type turbidity sensor (SS-120-H) and measures turbidity. It accurately measures turbidity in the range of low to medium concentration (10 degrees) by the 90-degree transmission scattering method with less stray light.Optimal for control and monitoring of wastewater treatment and production processes.
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Product
Field-installation Type Electric Resistivity Meter (Four-Wire Transmission)
HE-200R
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HE-200R connects resistivity sensor (ERF Series) and measures resistivity and temperature in the sample water. It is suitable for measurement of UPW resistivity.
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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
Battery Fault Insertion Unit
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The Battery Fault Insertion Unit (FIU) provides intelligent switching of cell-simulation channels for the Battery Simulator 1200. The switching capability enables simulation of open-circuit and short-to-rail fault conditions on any cell channel for the purposes of battery management system (BMS) testing. Additionally, a four-wire auxiliary input allows you to connect an external digital multimeter (DMM) instrument to any cell channel for very high-accuracy bypass current and cell voltage measurements. Each FIU provides 24 independently-programmable cell-switching channels for one or two 12-cell Battery Simulator 1200 units. Additional Battery Simulator 1200 and FIU instruments can extend functionality up to 120 series-connected cell channels.
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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
Panel-mount Type Resistivity Meter (Four-Wire Transmission)
HE-480R
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HE-480R connects resistivity sensor(ERF sereies) and measures resistivity and temperature in the sample water.The feature is the high-precision temperature compensation function.Its high-performance temperature compensation makes it ideal for sequential monitoring of ultra-pure water used in manufacturing processes in the semiconductor field, and many other fields, including the areas of electrical goods, foods and medicines.
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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
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
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
Field-installation Type Simplified Fluoride Ion Concentration Meter(Four-Wire Transmission)
HC-200F
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HC-200F is connected to a fluoride ion electrode (1009) to detect free fluoride ions in the sample water.(Total fluorine is not detected.) It is suitable for fluoride ion monitoring in effluent from factories, e.g., those of semiconductor FPD and glass manufacturers.
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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
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
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
Field-installation Type Dissolved Oxygen Meter (Four-Wire Transmission, Membrane Type)
HD-200
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HD-200 connects the DO (Dissolved Oxygen) sensor (DO-1100) and measures the DO in the sample water.The measurement method is membrane type polarography method. It is suitable for monitoring DO in wastewater treatment or aquarium for aquaculture.
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Product
Resistance Meter
MT8-4L
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М-module МТ8-4Л is a mezzanine module designed to measure the resistance of resistive sensors using a four-wire measurement circuit in eight channels (eight-channel digitizer). М-module МТ8-4Л is installed on the carrier of mezzanines - module НМ-М and is connected to it via a local information highway. Up to four m-modules of various types can be installed on the NM-M module. The NM-M module, together with the m-modules installed on it, forms a VXI module of size C-1 and is used to create information measuring VXI systems.
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Product
PXIe-4147, 4-Channel, ±8 V, 3 A Precision PXIe Source Measure Unit
786888-01
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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
Field-installation Type Turbidity Meter (Four-Wire Transmission, For Wide Range)
HU-200TB-W
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HU-200TB-W is a turbidity meter developed to continuously measure turbidity in processes with large turbidity changes, such as water intake and sedimentation tanks in water supply plants. It employs transmission 90-degree scattered light method and is ideal for monitoring changes in processes with large turbidity changes from low range (10 degrees) to high range (2000 degrees). An electric wiper cleaning can be installed as an option, and long-term stable measurement is possible by periodic cleaning.
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Product
Panel-mount Type Conductivity Meter (Four-Wire Transmission, For Wide Range)
HE-960HI
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HE-960HI is a wide-range type sanitary electric conductivity meter that can measure over a wide range from manufacturing water up to 500 mS/cm, and enables advanced concentration management through abundant outputs. It connects conductivity sensor (FES-220/310). Cleaning-in-Place (CIP) terminal management and a reduction in cleaning solutions is also achieved through accurate surface detection.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
Field-installation Type Turbidity Meter (Four-Wire Transmission, Immersion Type)
HU-200TB-IM
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HU-200TB-IM connects immersion type turbidity/ MLSS sensor (SS-150) and measures turbidity and SS in activated sludge. The sensor can be immersed directly in the sample water tank. Optimal for turbidity and SS management of wastewater and intake.





















