Four-wire
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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
Panel-mount Type Residual Chlorine Meter (Four-Wire Transmission)
HR-480
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HR-480 industrial residual chlorine meter takes sequential measurements of free residual chlorine, which is an indicator used in the inspection of the anti-bacterial properties of drinking water and swimming pools.The sensor(RS-1) combined with uses a galvanic method with no drive section, making it highly maintainable, and producing stable measurements over a long period.
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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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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
Panel-mount Type Conductivity Meter (Four-Wire Transmission, For Low-concentration)
HE-480C
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HE-480C connects conductivity sensor (ESH /FS Series) and measures conductivity and temperature in the sample water. This is a highly functional model, with high-performance temperature compensation, and is applicable to a wide range of tasks, from managing pure water for use with semiconductors, to managing the quality of boiler water.
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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
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
Field-installation Type Residual Chlorine Meter (Four-Wire Transmission, Rotating Type)
HR-200RT
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HR-200RT is connected to a residual chlorine sensor (RA-30), which allows the free residual chlorine concentration to be measured with high accuracy. It is sutable for waterworks, pool water sterilization, and desalination systems. The measurement method is a three-pole polarographic method, which enables continuous monitoring of residual chlorine concentrations without using reagents.Stable measurement over a long period was realized by physical polishing cleaning using beads.
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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
Field-installation Type Residual Chlorine Meter (Four-Wire Transmission, Water flow beads)
HR-200
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HR-200 is connected to a residual chlorine sensor (RA-20), which allows the free residual chlorine concentration to be measured with high accuracy. It is sutable for waterworks, pool water sterilization, and desalination systems. The measurement method is a three-pole polarographic method, which enables continuous monitoring of residual chlorine concentrations without using reagents. Stable measurement over a long period was realized by physical polishing cleaning using beads.
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Product
Octal Four-wire Multiplexer
SIM925
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Stanford Research Systems, Inc.
The SIM925 is an eight input channel, four-wire multiplexer for low-level signal applications. Kelvin-lead measurements are supported with optional buffering of the two sense leads
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Product
Field-installation Type pH Meter (Four-Wire Transmission)
HP-200
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HP-200 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
Panel-mount Type pH Meter (Four-Wire Transmission, Pulse Proportional Control)
HP-480PL
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HP-480PL industrial pH meter is a pH meter with a pulse proportional control function, which can drive a pulse pump directly.It connects pH sensor and measures pH and temperature in the sample water.As the HP-480PL has a high injection resolution per pulse, it can be used to control a pulse pump as part of a system for processing involving fine control of pH values, for example controlling the pH values of microscopic or small samples.
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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
Panel-mount Type pH Meter (Four-Wire Transmission, Industrial Time sharing Proportional Control)
HP-480TP
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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.HP-480TP is a pH meter with a time sharing proportional control function, making it ideal for tasks such as interval processing in any type of control process.
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Product
Field-installation Type Ammonia Nitrogen Meter(Four-Wire Transmission)
HC-200NH
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HC-200NH is an ammonia nitrogen(NH4-N) meter using ion electrode method which is designed for aeration control in wastewater treatment.
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Product
Field-installation Type Electric Conductivity Meter (Four-Wire Transmission, For High-concentration)
HE-200H
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HE-200H connects conductivity sensor (FES-125F,126F) and measures conductivity and temperature in the sample water. It can be used not only for measurement of electrical conductivity in aqueous solution, but also for concentration adjustment and rinse monitoring of CIP, etc., as well as for concentration monitor of process.
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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
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
Four Wire Modem for SEL Mirrored-Bits
MBT 9600
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Application specific features set the MBT9600 Four Modem apart from the conventional high speed modems. Its compact size and ease of installation make the MBT9600 an ideal, low cost alternative to conventional audio tone teleprotection systems.The circuitry is ideally suited for use over private networks such as conventional voice channels over analog microwave.
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Product
Field-installation Type Dissolved Oxygen Meter (Four-Wire Transmission, Optical Type)
HD-200FL
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Optical dissolved oxygen sensor with no electrolyte replacement and rugged membrane.Highly intelligent, including automatic recognition of membrane properties when replacing the sensor cap.The HD-200FL is an optical (fluorescent) dissolved oxygen meter suitable for monitoring aeration tanks used for sewage treatment, effluent treatment, and other processes. Compared to conventional membrane polarographic type sensors, there is no need for electrolyte (internal fluid) replacement or warming, up. Characteristics of optical sensors are utilized to realize unequaled, improvement in ease of maintenance and reduction in running costs. Moreover, it features enhanced user-friendliness, with sensor caps that have built-in memory and a membrane replacement notification function.
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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
Panel-mount Type pH Meter (Four-Wire Transmission, 4 point ararm, Time sharing Proportional Control)
HP-960FTP
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HP-960FTP industrial pH meter is a high-end pH meter with a four-point alarm and a time sharing proportional control function.It connects pH sensor and measures pH and temperature in the sample water.It can also be linked with a cleaning device via an external input, extending its automatic operation time.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
4-Wire Universal Cable/Harness Tester
LX-850
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Shenzhen Lian Xin Technology Co., Ltd.
Starting up conducts self-diagnosis and self-correction·The system can scan and direct automatically.·The system provides advanced instant open-circuit, short-circuit, continuity test, can test the wire break·It can function as unilateral, standard, multi-segment and spot test of wire·The maximum test voltage is AC1000V / DC1500V·The system adopts the advanced four-wire measurement, and the minimum measurable range is 1mΩ.·The maximum test spot is 256.·640×480 full Chinese/English large color display .·All varieties of linearity and safety tests are available.·Fully programmable continuous test is available.
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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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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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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.
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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
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.
