4-wire
resistance measurement using an ohmmeter's two each, force and sense leads.
See Also: Resistance
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Product
Ground Testing
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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
PXI/PXIe LVDT/RVDT/Resolver Simulator Module, 2-Banks
41-670-003-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. This allows the module to simulate up to 2 channels of 5 or 6-wire or 4 channels of 4-wire.
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Product
Process Analyzers
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Knick Elektronische Messgeräte GmbH & Co. KG.
Industrial meters for pH, ORP, conductivity and oxygen. In 2- and 4-wire technology, explosion-proof.Bus Communication: HART, FOUNDATION Fieldbus, Profibus DP and PA. Robust industrial housing with high IP protection. Suitable for outdoor use. For analog and digital sensors. Simple intuitive operation. From DIN rail transmitters up to the modular system.
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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
3-Slot Data Acquisition Mainframe With Three 20-Channel Multiplexer Modules
DAQ970MB
Mainframe
The DAQ970MB Good Multiplexer Bundle offer includes a DAQ970A three-slot data acquisition mainframe and three 20-channel DAQM901A multiplexer modules. This bundle provides the following:3-slot mainframe with USB and LAN6.5-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 junctionbuilt-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
Hipot Testers
95X Series
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Vitrek built the 95X Series from the ground up with DSP technology – to bring you the safest, fastest, most capable, feature rich hipot testers available. The 95X Series combines high output power, with a wide range of AC & DC voltage outputs and extremely low leakage current measurement. Then we added a 4-wire milli-ohmmeter with dynamic range up to 100K ohms and an overlapping Tera-ohm class Insulation Resistance function. Top that off with an available 40 Amp Ground Bond capability and you’re just beginning to get a feel for what the Vitrek 95X Series Hipot Testers can do for you.
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Product
4-Wire Resistance Measurement | Continuity & HiPot Cable & Wire Harness Testers
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An add-on option for the CableEye HVX high voltage cable tester series that permits expanded testing for contact and wire resistance as low as 1 mΩ. After checking for opens, shorts, miswires, and resistance limits, the 4-wire Kelvin measurement applies a user-selectable test current from 10 mA to 1 A to determine connection resistance within 1 mΩ. The resistance profile of a model cable may be stored and used as a basis of comparison during later testing to reveal cold solder joints, faulty crimps, recessed pins, pin contact contamination, improper wire gauge, and stress-extruded wire.This option may be purchased with any new HVX tester, or added as an upgrade to any of your existing HVX testers.
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Product
Contact Resistance Meter
PCRM200S
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The Motwane Manufacturing Company
The Motwane make Contact Resistance Meter (Model:PCRM200S) is a digital micro-ohmmeter, specially designed to measure extremely low resistance in micro ohm. The Instrument is based on Kelvin 4-wire connection method for measurement of low resistance.The Current injection is fixed at 100A & 200A. Test information like current injected with measured resistance & voltage drop is displayed with real time data on large LCD with backlit.This User friendly Instrument and it's accessories are housed in easy transportation case. Advanced Windows based software isprovided for data downloading, analysis and report generation. Internal memory of 199 records is provided for onsite data storage withDate & Time stamping & Recalling facility. Thermal printer is the additional feature provided to print the test results.
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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
RTD Measurement for PCI
PCI390
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The PCI390 features six 2-, 3-, or 4-wire high-accuracy RTD measurement channels. Each channel has programmable alarm limits on which an interrupt can be issued. The local DSP (TMS320C203) performs linearization, auto-calibration and alarm-limit checking. Sensor-data is available in °C, °F, K and Ohms. All inputs are optically isolated from the system.
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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
3-Slot Data Acquisition Mainframe With GPIB, Three 20-Channel Multiplexer Modules, And BenchVue DAQ Software
DAQ973MBX
Mainframe
The DAQ973MBX Best Multiplexer Bundle offer includes a DAQ973A three-slot data acquisition mainframe, three 20-channel DAQM901A multiplexer modules, and a BV0006B BenchVue DAQ software with a KeysightCare software support subscription. 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 junctionbuilt-in signal conditioning measures thermocouples, RTDs and thermistors, AC / DC volts and current; resistance, frequency / period, diode test, and capacitance36-month node-lock BV0006B BenchVue DAQ software license with KeysightCare software support subscription
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Product
Battery Tester
6470 BT
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Standard Electric Works Co., Ltd
2000 counts. DC Voltage measurement. 4-wire resistance measurement. Data hold function. Low battery indication. 9V DC power supply. Measure battery types: Li-ion, Ni-Cd, Ni-MH. Simple operation. Lead resistance and contact resistance eliminated.
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Product
4 Wire Earth Resistance & Resistivity Tester
4235 ER
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Standard Electric Works Co., Ltd
● Microprocessor-controlled.● Earth resistivity (ρ) test.● Earth testing at 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.● 200 measurement results can be saved in the memory and recalled on the display.● Interval between auxiliary earth spikes is 1.0~50.0m.
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Product
SparkFun Triple Axis Accelerometer Breakout
ADXL345
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This new version adds two standoff holes as well as an extra decoupling capacitor. The ADXL345 is a small, thin, low power, 3-axis MEMS accelerometer with high resolution (13-bit) measurement at up to +-16 g. Digital output data is formatted as 16-bit twos complement and is accessible through either a SPI (3- or 4-wire) or I2C digital interface.
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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
D.C Milli-Ohm Meter, 4-Wire with Handler/RS-232C/USB Device
T3MIL50
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D.C Milli-Ohm Meter, 4-Wire with Handler/RS-232C/USB Device.
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Product
PXI/PXIe LVDT/RVDT/Resolver Simulator Module, 4-Banks
43-670-001-AABBCC
Simulator
The 41/43-670-001 is ideal for the simulation of variable differential transformers (VDT), both linear (LVDT) and rotary (RVDT) types, as well as resolvers. 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.
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Product
REM-11152, 16-Channel (Input), 24 V, 2-, 3-, 4-Wire Digital Module for Remote I/O
784743-01
Digital Module
The REM‑11152 is a digital 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‑11152 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. The REM‑11152 features 2‑, 3‑, and 4‑wire spring terminal connection methods, a built-in power supply for sensors, and an adjustable filter time to improve measurement quality. You can use inputs as counters or standard digital inputs.
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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
Ethernet-GPIB-USB to Serial Interface
Model 9006
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* All interfaces provide full communication with the serial device.* Ethernet port supports VXI-11 and raw socket protocols.* Controllable with Windows PC programs like C, Visual Basic, LabVIEW, VEE, etc that make VISA or SICL calls.* Controllable from MAC/UNIX/LINUX and similar computers with RPC calls.* GPIB port is IEEE-488.2 compatible.* USB port uses Microsoft supplied driver to prevent driver problems with operating system change problems.* Serial port provides RS-232 and 2 or 4-wire RS-485 signals.* Supports devices that generate asynchronous messages, devices that respond when queried and smart devices.* Internal webserver for easy configuration from any browser.* Board runs on 5 to 15 Vdc power.* Includes ICS's VXI-11 and VISA keyboard control programs.* Works with Agilent, NI and Kikisui VISA libraries.
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Product
Ground Bond Tester
HYAMP® Series
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HYAMP III includes productivity-enhancing features and proven safety technology to reduce the compliance bottleneck on the production line. All models verify the integrity of your product's ground circuity with accurate 4-wire measurements and offset capability.
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Product
Serial to GPIB Controller
Model 4895
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ICS's Serial to GPIB Controller allows any computer with a serial port to control GPIB devices. Works with RS-232 and 2 or 4-wire RS-422/RS-485 signals. Use to add GPIB Capability to PLCs with serial ports.
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Product
Dual Channel Multi-Band FM Tracking/Data Receiver In Modular Style Housing
LS-27-B
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The Lumistar LS-27-B Modular Dual Channel Tri-Band Tracking and Data Receiver is Lumistar’s third generation of modular high performance FM Receivers. This wideband designs supports one or two independent channels of PCM with data rates up to 20Mbps. The unit includes both an optional FM demodulated output for PCM data, and standard programmable AM/linear AGC outputs for auto-tracking receivers. The design offers 8 IF Bandwidths and 8 Video Filters per channel for each receiver.AC coupling with a low pass filter is employed to ensure a high quality data link with long strings of NRZ-L ones or zeroes. The unit provides a software selectable 10 MHz reference I/O port forlocking local oscillators to a high precision external source or to arrange multiple units in a master/slave arrangement. The receiver’s control and status is achieved via Ethernet, USB or auto-switched RS-232 (or “4-wire” RS-485 in place of 232). When utilizing the RS-422 interface, multi-drop configurations can be accommodated.
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Product
Digital Micro Ohm Meters
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Is used to measure DC low resistance through 4-wire method. Its features are: Comparison function to determine if the device is in good condition, unkown wire length calculation (FT/M); two-way data transmission by USB interface.
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Product
Banana-Triax Adapter For 4‑Wire (Kelvin) Connection
N1297B
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The N1297 Series is a collection of banana-triax adapters for the Keysight B2900 Series precision source measure unit (SMU). It consists of both 2-wire as well as 4-wire connection requirements.
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Product
Banana-Triax Adapter For 2‑Wire (Non-Kelvin) Connection
N1297A
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The N1297 Series is a collection of banana-triax adapters for the Keysight B2900 Series precision source measure unit (SMU). It consists of both 2-wire as well as 4-wire connection requirements.
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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
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.
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Product
PXI Switch - 24-CH 2-Wire Multiplexer Module
PXI-7921
Matrix Switch Module
ADLINK PXI-7921 is a relay multiplexer which consists of 24 2-wire relays (DPDT, 2 Form C). As a multiplexer, the PXI-7921 provides 48x1 1-wire, 24x1 2-wire and 12x1 4-wire configurations. Users could choose one of the configurations by software. PXI-7921 typically connects one instrument, such as a DMM, a digitizer or a signal source, with many points which need measurement or excitation. The contact position of the relays can be changed either by direct software commands or by following the instructions previously stored in the on-board scan list. The scan list advances upon the trigger from external measurement devices, such as a DMM. The scan list could also advance when the scan-delay timer expires. In the PXI-7921, PXI trigger functions are supported and software programmable. Multiple modules can therefore be synchronized without additional field wiring.
