4-wire
resistance measurement using an ohmmeter's two each, force and sense leads.
See Also: Resistance
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Product
Soil and Air Temperature Probe
TP32MTT.03.B
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Temperature probe with two 4-wire Pt100 1/3 DIN sensors for measuring the soil and air temperature (± 50 mm).
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Product
I-V Measurement Systems
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The I-V Curve Data Acquisition includes a fixture for holding cells for testing (see Figure 1 below). This fixture can accommodate cells from small to up to 100 mm x 100 mm. Adjustable cell stops, in the X & Y-axis, are provided to consistently locate the cells for testing. Two micro-manipulators are provided as shown in Figure 1. Each micro-manipulator has two spring loaded contacts to allow 4-wire measurement even for cells that have top contacts only. Two back-side voltage contacts are embedded in the Plate (galvanically isolated from the Plate) and make good electrical contact when the cell is held down by vacuum to the plate. All voltage and current probes are gold-plated. The cell is held down with vacuum during testing (built-in vacuum pump).
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Product
5.7" VGA Industrial Display Kit
IDK-1105
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5.7" LCD supports 640 x 480 pixels and wide operating temperature (-20 ~ 70° C) Brightness of 500 cd/m2. 4-wire resistive touch solution, LVDS signal interface, Low power consumption 1 Watt (panel only).
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Product
Slip Ring Test System
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This is a high specification tester that will measure many cable parameters. It measures cable resistance very accurately using the Kelvin 4-wire method. It also tests for shorts between pins at a low voltage. The next test is to measure insulation between connections at a higher voltage. This is carried out at up to 1500 Volts DC with resistances of 10 to 500 Meg ohms.
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Product
Ground Resistance Tester
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Weshine Electric Manufacturing Co., Ltd
1.Soil resistivity tester supports 2, 3 and 4wire grounding resistance measurement. 2. 4digit large LCD display with white screen backlight, suitable for use in dimly lit places. 3. IP65 protection grade, good waterproof, compact and portable, supports multiple functional tests.
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Product
Programmable DC Power Supply
SPD1000X Series
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SPD1000X Programmable Linear DC Power Supply has a 2.8 inch TFT-LCD display, features remote computer control capability, and real time wave display. This single output design is focused on delivering high performance and ease-of-use in a small package. The SPD1168 features a high precision programmable output capable of delivering up to 16 V/8 A,the SPD1305X features a high precision programmable output capable of delivering up to 30 V/5 A and also includes a 4-wire sense function for more accurate voltage sourcing, especially for long leads or high resistance connections. There are additional output short and overload protect functions to assist in production and development applications.
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Product
7" In-Vehicle Smart Display With Smart Display Port 2.0
TREK-303R FL
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7" WVGA (16:10) TFT LCD with 4-wire resistive touch control, SDP 2.0 port one cable connect supports longer cable length and easy connect/disconnect. Wide working temperature range (-30 ~ 70 °C) Five user-programmable function keys, CE/FCC/e13 certified.
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Product
PXI Single 46x4 Matrix, 1 Pole Switching
40-524-021
Matrix Switch Module
Medium density PXI dual 46x4, 1-pole matrix - it is also available inreed relay formats of 2-pole and 1-pole screened (see "also in this range" on right). The screened version is suitable for switching signals up to 50MHz. Typical applications include signal routing in ATE and data acquisition systems. The two banks may be used for operating a 4-wire measurement system (bank-1 for source, bank-2 for measure). Larger matrices may be constructed by daisy chaining the common signals from multiple PXI Modules.
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Product
ANSI X3.28 to Modbus RTU Converter
Model 2399
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* Converts ANSI X3.28 commandslinto Modbus RTU packets.* New 32 Address Mode supports multi-channel Modbus Controllers like the Watlow MLS300.* Control Modbus RTU devices from any ASCII serial source.* Serial ports support RS-232 and 2-wire/4-wire RS-485 signals.* Includes serial baud rate conversion.* Internal logic is IEEE-488.2 compatible and uses SCPI commands for configurtion setup.* 2399 mounts on a DIN rail or on any flat panel.* Inexpensive way to maintain manufacturing equipment such as semiconductor fusion chambers, etc as the ANSI Controllers become obsolete.* Application Note AB23-3 describes how to use the 2399 to replace obsolete Watlow Controllers in the Axcelis/Fusion Gemini Asher.* 2399 Serial Keyboard Program lets you control and setup the 2399 and test the ANSI modes.* 239x Table Loader Program uploads ANSI Command Table entries from an Excel csv file.
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Product
Strain Gauge and RTD via Ethernet
2612
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Simultaneous measurement of four strain gauges or RTDs6 or 4-wire measurement with 200 nV resolution at a 6 Hz rateAuto-calibration cycle measures excitation at remote strain gaugeCompatible with Linux and WindowsUse our design assistant to configure a system and calculate pricing
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Product
PXI LVDT/RVDT/High Speed Resolver Simulator Module, 4-Banks
41-670-301-AABBCC
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The 41-670-301 (PXI) and 43-670-301 (PXIe) are ideal for the simulation of variable differential transformers (VDT), both linear (LVDT) and rotary (RVDT) types, as well as resolvers with high speed simulation up to 130krpm rotation. They have four banks, each capable of simulating the output of a single 5 or 6-wire VDT or resolver, or dual 4-wire utilizing a shared excitation signal. This allows the module to simulate up to 4 channels of 5 or 6-wire or 8 channels of 4-wire.
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Product
Earth Resistance Soil Resistivity Tester 2 / 3 / 4 Wire
Model KM 1320
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Kusam Electrical Industries Limited
KM 1320 Earth Resistance Soil Resistivity Tester is specially designed and manufactured for measuring earth resistance, soil resistivity, earth voltage, AC voltage. Adopting the latest digital and micro-processing technology, precise 4-pole, 3-pole and simple 2-pole method for earth resistance measurement, importing FFT and AFC technology, with a unique function of anti-interference capability and the ability to adapt to the environment, consistency of repeat testing, to ensure highprecision, high stability and reliability for prolonged measure,which is widely used in electric power, telecommunications,meteorology, oil field, construction, lightning protection,industrial electrical equipment and other earth resistance, soilresistivity, earth voltage, AC voltage measurement.
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Product
PXI Digital Multimeter, 6 digit, High Performance
M9182A
Digital Multimeter
The Keysight M9182A is a 6digit PXI digital multimeter that measures common parameters such as DCV, DCI, ACV, ACI, 2- and 4-wire resistance, frequency, capacitance, and temperature. It offers 40 ppm basic DCV measurement accuracy, excellent noise rejection, and handles inputs of up to 300 V. The M9182A offers advanced triggering capabilities, including pre and post triggering.
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Product
PXI/PXIe LVDT/RVDT/Resolver Simulator Module, 2-Banks
43-670-003-AABBCC
Simulator
The 41/43-670-003 is ideal for the simulation of variable differential transformers (VDT), both linear (LVDT) and rotary (RVDT) types, as well as resolvers. It has two banks, each capable of simulating the output of a single 5 or 6-wire VDT or resolver, or dual 4-wire utilizing a shared excitation signal.
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Product
Value-added Module With COM/CAN/DIO And 3 PCI Express Mini Card Slots
VAM900
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*1 4-wire isolated RS-232/422/485, 1 isolated CANBus 2.0A/B, 1 isolated DIO 8-in/8-out*Swappable modular design*Maximize I/O flexibility*2kV (COM & CANBus)/1.5 kV (DIO) isolated protection*Designed for tBOX300/500 series*EN 50155 certified; CE, LVD and FCC compliant
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Product
7" WVGA/WSVGA Industrial Display Kit With Touch Solution
IDK-1107W
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7" LCD supports 800 x 480 & 1024 x 600 pixels and wide operating temperature (-20~ 70° C) Brightness of 400 & 500 cd/m2 with LED backlight, 4-wire Resistive / Projected Capacitive touch solution.
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Product
Universal Transmitter
Model LXT-380
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Teledyne Analytical Instruments
The Model LXT380 transmitter is a single or dual channel, intelligent, multi-parameter designed for the online continuous measurement of pH, ORP, Specific Ion (pION), dissolved oxygen, free chlorine, total chlorine, conductivity and resistivity. The Model LXT380 Tramsitter digitally communicates with the SP3X digital sensor, automatically configuring the trasmitter's menues and display screens to the measured parameter. The LXT380 tramsitter can be Loop powered or 4-wired DC powered. The standard configuration has a 4-20 mA and a serial communication port with MODBUS RTU output. Alarm relays option is only available on 4-wired DC powered transmitters. LXT380 Transmitter loop is available in FM, ATEX and IECEx certifications.
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Product
PXI Temperature Input Module
Module
PXI Temperature Input Modules offer up to 32 channels of analog temperature measurements. Some models include autozero channels for offset compensation as well as open thermocouple detection to identify disconnected thermocouples, while others support 2-, 3-, or 4-wire resistance temperature detector (RTD) measurements. PXI Temperature Input Modules support both high-speed and high-resolution modes. You can program channel configurations and scale measured data into engineering units.
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Product
8 Channels, RTD Measurement
RT1
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The module provides 8 measurement channels, and can be programmed for interfacing to 2, 3, and 4-wire platinum RTD sensor configurations. The 4-wire mode (default) is the most accurate, providing excellent stability and repeatability. The RTD channels feature individual A/D converters and precision excitation/current drive. Programmable lead-wire compensation is provided for inherently less accurate 2 and 3-wire configurations. All RTD channels are self-aligning because each channel is automatically "aligned" on a rotating basis to eliminate offset and gain errors throughout the operating envelope. Programmability for expected resistance range and wire modes allows for optimization of scaling/resolution, as well as flexibility in reading many RTD types.
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Product
MAX31856 Thermocouple Sensor Arduino Shield
SEN-30007-K
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Quad channel thermocouple Arduino shield based on the MAX31856 universal digital thermocouple interface IC. This is an exciting update of the MAX31855, with improvements in resolution (19 vs 14 bits), on-board temperature reference (6 vs 4 bits), and compensation (fully compensated vs nonlinear correction required). The MAX31856 is interfaced via 4-wire SPI with options for interrupt triggering. An LDO and a high-speed level shifter are included on ALL device pins to allow interfacing with to any Arduino - both 3.3V and 5.0V variants - without sacrificing device performance in any operating condition.
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Product
PXI-4132, 100 V, 2 W Precision PXI Source Measure Unit
780558-01
Source Measure Unit
±100 V, 10 pA Precision PXI Source Measure Unit—The PXI-4132 is a programmable, high-precision source measure unit (SMU). It has a single isolated SMU channel that offers a four-quadrant output that incorporates remote (4-wire) sense as well as external guarding. With its high measurement resolution integrated guarding, the PXI-4132 is ideal for high-accuracy leakage measurements on integrated circuits, discrete components, PCBs, and cables. You can also perform high-speed I-V measurements on a variety of components including diodes and organic LEDs using the onboard hardware sequencing engine. In addition, you can synchronize multiple PXI-4132 modules using the PXI backplane to provide high-speed I-V measurements on transistors and more complex devices.
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Product
MAX31856 Thermocouple Sensor Arduino Shield
SEN-30007-J
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Quad channel thermocouple Arduino shield based on the MAX31856 universal digital thermocouple interface IC. This is an exciting update of the MAX31855, with improvements in resolution (19 vs 14 bits), on-board temperature reference (6 vs 4 bits), and compensation (fully compensated vs nonlinear correction required). The MAX31856 is interfaced via 4-wire SPI with options for interrupt triggering. An LDO and a high-speed level shifter are included on ALL device pins to allow interfacing with to any Arduino - both 3.3V and 5.0V variants - without sacrificing device performance in any operating condition.
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Product
PXI/PXIe LVDT/RVDT/Resolver Simulator Module
43-670-XYZ-AABBCC
Simulator
The 41/43-670 range is ideal for the simulation of variable differential transformers (VDT), both linear (LVDT) and rotary (RVDT) types, as well as resolvers. Available with up to four banks, each bank is capable of simulating the output of a single 5 or 6-wire VDT or resolver, or dual 4-wire utilizing a shared excitation signal. This allows the module to simulate up to 4 channels of 5 or 6-wire or 8 channels of 4-wire.
