4-wire
resistance measurement using an ohmmeter's two each, force and sense leads.
See Also: Resistance
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Product
4-Wire Resistive Type Single-Touch Module
ETM-RES05C
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Resistive touch technology, supports 4-wire Touch Screen, Supports USB and RS-232 Interface, Resolution support to 2048 x 2048, High Reliability and Fast Conversion Time.
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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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Product
16-Channel Multiplexer (2 / 4-Wire) Module for DAQ970A and DAQ973A
DAQM902A
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DAQM902A 16 Channel Multiplexer (2/4-wire) Module. Reed relays with high voltage switching of up to 300 V and scan speed up to 250 ch/s.
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Product
4 Wire Earth Resistance Testers
2734 ER
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Standard Electric Works Co., Ltd
● Microprocessor-controlled with advanced safety features.● 4-wire testing only.● Automatic C spike check.● Auto power-off.● Auto data hold.● Large LCD (2000 counts).● Protective terminal cover.
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Product
CableEye 4-Wire Calibration Verification Board | Cable & Harness Testers
CB52
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The CB52 is intended for periodic calibration verification of the Kelvin 4-wire resistance measurement module – an optional, add-on module that may be purchased with any new hipot system, or added to an existing high voltage tester as an upgrade.
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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
Inputs Temperature Data Logger – Pt100
HD32.7
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The instrument HD32.7 is a robust 8 inputs data logger for Pt100 sensor temperature probes. The probes can be Pt100 with SICRAM module, direct 4-wire Pt100 or direct 2-wire Pt1000.
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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
6.5" VGA 640x480 800nit LVDS LCD With 4W RES. T/S KIT
IDK-1106
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6.5" LCD supports 640 x 480 pixels and wide operating temperature, 4-wire resistive touch solution. Brightness of 800 cd/m2 with LED backlight, LVDS signal interface, LED driver built in.
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Product
Single-functional testers
3123
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The MI 3123 SMARTEC Earth / Clamp is an earth resistance tester with the ability to perform 4-wire earth resistance measurement and 4-wire specific earth resistance measurement. With the optional A 1018 and A 1019 current clamps the instrument can perform 4-wire earth resistance measurement with one current clamp, contactless earth resistance testing with two clamps and TRMS current measurement up to 20 A. Configurable limits enable a PASS / FAIL evaluation of test results.
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Product
Digital Power Recorder
MPR-601W-01
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*Applicable for single phase 2wires and single phase 3wires and *3phase 3wires and 3phase 4wires system*Wide measuring range up to 0～500V/500A*Easy data logging by USB flash memory
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Product
REM-11100, 2-, 3-, 4-Wire, 4-Channel Voltage Input Module for Remote I/O
784748-01
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2-, 3-, 4-Wire, 4-Channel Voltage Input Module for Remote I/O - The REM‑11100 is a voltage input module for remote I/O. Remote I/O systems are low-cost, modular systems for simple machine control and measurements. A remote I/O system consists of an EtherCAT bus coupler and individual modules mounted on a DIN rail. You control the REM‑11100 from a real-time controller, such as a CompactRIO Controller or an Industrial Controller. You can use remote I/O hardware to add low-cost I/O for simple tasks while your controller handles advanced tasks such as image processing, motion control, and high-speed or specialty measurements. This module features 2‑, 3‑, and 4‑wire spring terminal connection methods, a built-in power supply for sensors, four selectable input ranges, and simultaneous sampling.
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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
MAX31855 K-Type Thermocouple Arduino Shield
SEN-30004-K47
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Four channel MAX31855 digital thermocouple Arduino Shield. Two versions of this shield are avaliable for each thermocouple type: either 'Ch 0-3' (CS pins use Uno/Mega IO pins 7-10) or 'Ch 4-7' (CS pins use Uno/Mega IO pins 3-6), with the only difference being which set of zero-ohm resistors are populated on the board. This allows use of other SPI devices that may be 'hard coded' to specific digital pins on the Arduino, or simply stacking one of each type together to get a total of eight thermocouple channels on one Arduino. The MAX31855K supports a measured temperature range of -270C-1372C with known thermal characteristics and output resolution of 0.25C. Included thermocouple connectors are type-specific to provide proper material continuity as close to the IC as possible. The SEN-30004 is interfaced via 3 or 4-wire SPI and a high-speed level shifter is included to allow the board to plug directly into an Arduino Uno or Mega
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Product
PXI Single 44x4 Matrix, 2 Pole Switching
40-523-022
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Medium density PXI dual 44x4, 2-pole matrix - it is also available in reed relay formats of 1-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
Digital Milliohm Meter
4538 mO
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Standard Electric Works Co., Ltd
● 4-Wire method for mΩ measurement.● Measures down to 100µΩ (0.1mΩ).● Maximum resolution of 100µΩ.● 4 Lines × 20 Characters large LCD.● 200 measurement results can be saved in the memory and recalled on the display. ● Auto power off.● Data hold function.● MAX/MIN function.● Power source: 1.5V "C" battery × 8● Long battery life and stable power. ● Low battery indication.
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Product
NI TB-2627 Screw Terminal Block for NI PXI-2527
779358-01
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The TB-2627 provides the necessary routing to configure the PXI-2527 or PXIe-2527 PXI Multiplexer Switch Modules as a single or dual 1-, 2, or 4-wire multiplexer. You can directly connect the TB-2627 to the front panel I/O connectors of the PXI-2527 or PXIe-2527.
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Product
PXI Digital Multimeter
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PXI Digital Multimeters, or DMMs, feature AC/DC voltage, AC/DC current, 2- or 4-wire resistance, and frequency/period measurements, as well as diode tests. You can also choose a PXI DMM with an isolated, high-voltage digitizer that can acquire waveforms at sample rates up to 1.8 MS/s at full input range, up to 3 A or 1,000 V. Additionally, you can choose a PXI DMM that can perform basic inductance and capacitance measurements.
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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
3-Slot Data Acquisition Mainframe With GPIB, Two 20-Channel Switch Modules, And One 20-Channel Multiplexer Module
DAQ973SB
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The DAQ973SB Better Multiplexer Bundle offer includes a DAQ973A three-slot data acquisition mainframe, two 20-channel DAQM903A Actuator / GP switch modules, and one 20-channel DAQM901A multiplexer module. This bundle provides the following:3-slot mainframe with USB, LAN, and GPIB6.5-digit (22-bit) internal DMM60 channels of multiplexer switches6 channels of dedicated current measurements2- and 4-wire scanning300 V switching80 channels/s scanningbuilt-in thermocouple reference junction20-channel actuator / general-purpose switch with independent single-pole, double-throw (SPDT) relaysbuilt-in signal conditioning to measure thermocouples, RTDs and thermistors, AC / DC volts and current; resistance, frequency / period, diode test, and capacitance
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Product
PXI/PXIe LVDT/RVDT/High Speed Resolver Simulator Module, 4-Banks
43-670-301-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
PXI/PXIe LVDT/RVDT Simulator Module, 4-Banks
41-670-101-AABBCC
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The 41/43-670-101 is ideal for the simulation of variable differential transformers (VDT), both linear (LVDT) and rotary (RVDT) types. It has 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
Rugged Igniter Tester
4314 KV
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Model 4314 KV is a 4-wire ohmmeter designed to use low test currents for its measurement. Additional circuitry proprietary to Valhalla Scientific is used to ensure that test current levels do not exceed the specified “fail-safe current” even in a worst-case component failure situation.
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Product
Pico-ITX
RSB-3810
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*MediaTek Genio 1200 4 cores A78 & 4 cores A55*Onboard LPDDR4 8GB, 4000MT/s memory*HDMI 4k60fps, 1 x Dual Channel 24 bit LVDS*1 x 4-wire RS-232/422/485, 2 x USB3.2 Gen1 By 1, 2 x USB2.0, 1 x Micro SD, 1 x Mic. in / Line out*1 x M.2 3052 Key B for 5G, 1 x M.2 2230 Key E Slot for WiFi/BT*Support I/O Expansions by UIO40-Express I/O boards*Support Ubuntu, Ycoto Linux and Android
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Product
Dual MAX31865 PT-100 RTD to Digital Breakout
SEN-30202-PT100
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Dual channel breakout board for the MAX31865 RTD-to-Digital converter from Maxim. Two breakout hardware configurations are available standard, designed to interface with either the PT100 or PT1000 platinum RTDs. For non-standard applications, including thermistors, custom hardware configurations can be accommodated. Contact Technical Support for more information. RTD devices may be wired in 2, 3 or 4-wire configurations using the 4-pin screw terminal input. The MAX31865 breakout is interfaced via 3 or 4-wire SPI with a data-ready output for specific operating modes. An LDO and a high-speed level shifter are included to allow interfacing with microcontroller devices between 3.0V and 5V (all Arduinos, Raspberry PI, etc) without sacrificing device performance.
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Product
16-Channel RTD Signal Conditioning Card
ProDAQ 5821
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The ProDAQ 5821 series of Signal Conditioning Cards is designed to interface with a variety of sensors, principally RTDs, Thermistors, Cryogenic Diodes and Voltage type sensors. Each version of the 5821 provides the capability of precise 4-wire measurement. In order to achieve this, a precise 500μA constant current source is provided per channel. The current source can be disabled on a per channel basis and is monitored to ensure that current is flowing. The value of the output current is stored on-board after calibration. In order to achieve the highest accuracy the output current may be automatically calibrated 'on-the-fly' using the ProDAQ 3416 24-bit Sigma-Delta ADC card and an on-board precision resistor.
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Product
4-Wire Universal Cable Tester
LX-860
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Shenzhen Lian Xin Technology Co., Ltd.
The system provides Chinese/English free switch operation interface·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
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Product
PXI/PXIe LVDT/RVDT/Resolver Simulator Module
41-670-XYZ-AABBCC
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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.
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Product
4 Wire Earth Resistance Testers
4234 ER
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Standard Electric Works Co., Ltd
● Microprocessor-controlled.● Earth testing at 2Ω, 20Ω, 200Ω, 2kΩ.● Earth voltage measuring : 0-300V AC.● Automatic C spike check.● Automatic P spike check.● 2-Wire test.● 3-Wire test.● 4-Wire test.● LCM display.● Auto ranging.● Auto power OFF.● Data hold.● Robust, compact and easy-to-carry.
