4-wire
resistance measurement using an ohmmeter's two each, force and sense leads.
See Also: Resistance
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Product
PXI-2503 , 48‐Channel, 1-, 2-, or 4-Wire, Electromechanical PXI Multiplexer Switch Module
777697-01
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48‐Channel, 1-, 2-, or 4-Wire, Electromechanical PXI Multiplexer Switch Module—The PXI‑2503 is a PXI switch module that you can configure as a multiplexer or matrix switch by using different terminal block accessories. It uses electromechanical relays with low thermal offset for accurate measurements and offers a 1,024‐step scan list for deterministic scanning.
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Product
D.C Milli-Ohm Meter with Advanced Features, 4-Wire, Handler/RS-232C/USB Device/GPIB
T3MIL50X
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D.C Milli-Ohm Meter with Advanced Features, 4-Wire, Handler/RS-232C/USB Device/GPIB.
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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
Value-added Module With 4 Terminal Block 4-wire Isolated RS-232/422/485
VAM100
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*4 4-wire Isolated RS-232/422/485*Swappable modular design*Maximize I/O flexibility*2kV isolated protection*Designed for tBOX300/500 series*LVD, FCC, EN 50155 and IEC 60945 certified; CE compliant
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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
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
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
3-Slot Data Acquisition Mainframe With GPIB, Three 20-Channel Multiplexer Modules, And BenchVue DAQ Software
DAQ973MBX
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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
High Voltage, Continuity & Hipot, Cable & Wire Harness Test Systems
CableEye HVX, HVX-21
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Fast ● Simple ● Precise
Advanced wiring analyzer scans for continuity (opens, shorts), miswires, resistance, capacitance, components (resistors, diodes, LEDs, capacitors) dielectric breakdown, insulation resistance, intermittent connections
HVX (Item 829) 1500 Vdc, 1000 Vac
HVX-21 (Item 829A) 2100 Vdc, 1200 Vac
For diagnostic and Pass/Fail Testing — Permits expanded testing (compared to models in our low voltage product line) for insulation resistance (IRI) and dielectric breakdown (DWV).
All CableEye testers are suitable for production, fault diagnosis, QC (Quality Control), assembly, and prototyping of standard or custom cables. Each combines test, fault location, design, documentation, labeling, and database storage in one instrument. Tests can be performed on long cables (with or without connectors) or no cables (e.g. connectors, backplanes, PCBs, components).
Standard Features & Benefits:- USB certified, PC-based tester for a versatile, fast, robust system with long life-cycle.
- Multilingual, dynamic, graphic-rich display (netlist & wiring schematic) provides clarity and speeds diagnostics.
- 128 Test Points, expandable to 1024 providing flexibility as your product line changes.
- User-selectable voltage to each connection group in the cable simplifies an otherwise complex process, accelerating testing.
- Programmable Ramp Up, Ramp Down, Dwell Time (same as Test Time), Trip Current, and Trip Delay (same as Soak Time) adds versatility.
- Current leakage detected during HV test phase provides a measure of insulation resistance up to 1 GΩ (HVX) and 5 GΩ (HVX-21) - any leakage current exceeding a preset limit reveals the presence of moisture, flux, or other contamination on exposed contacts.
- Real-time screening for intermittent connections for pinpointing elusive faults and improving quality.
- Automation scripting in a simple, intuitive language allowing non-programmers to reduce operator error by automating repetitive steps.
- Pop-Up Work Instructions. choose the exact amount of detail, imagery, language and automation you need to ensure your work instructions and tests are carried out flawlessly.
- Flexible tolerancing: optionally define as percentages or absolute terms, as well as asymmetrically (e.g. +0%/-10%) for improved yields.
- Barcode-tracking & archival data-logging to achieve error-proof test process and improved traceability & productivity.
- Print PASS/FAIL labels, test reports (with or without color wiring schematics/netlists) and log reports to satisfy ISO9000 reporting requirements.
- Compatible with laptop and touchscreen PCs for fieldwork and rack/off-bench mounting.
Includes:
CB29 board set (Item 759) for bare wire connections; comprehensive PC software with Database of >200 standard cables; 2 yr Product Support Subscription comprising Warranty, free tech support, and free software upgrades.
Select Add-On Options:
Hardware: 128-point Expansion Modules (attach to base); 4-Wire Kelvin Resistance Measurement, 1 mΩ at 1 A; Advanced Measurements; External Measurement Instrument Port (e.g. 10 GΩ Isolation at 100 V); Remote Control Connector for Deadman Switch; Environmental Sensor
Software: PinMap™ fixture editor, Connector Designer™ connector editor, or Autobuild™ guided assembly modules
camiresearch.com |@CAMI_CableEye |+1.978.266.2655 -
Product
Pico-ITX
RSB-3720
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*NXP Arm® Cortex®-A53 i.MX8M Plus Quad/Dual up to 1.8 GHz*Onboard LPDDR4 4 GB / 6 GB, 4000MT/s memory*HDMI 1920x1080 at 60Hz, 1 Single or 1 Dual Channel 24 bit LVDS (or 1 4-Lane MIPI-DSI by BOM Option)*1 4-wire RS-232/422/485, 1 USB3.2 Gen1 By 1, 1 USB2.0, 1 Micro SD, 1 Mic. in / Line out*1 mini-PCIe for 3G/4G, 1 M.2 2230 Key E Slot*Supports Windows 10 IoT Enterprise on Arm, Yocto Linux BSP*Support I/O Expansions boards by UIO40-Express*Support Hailo-8™ AI accelerator module (up to 26TOPS)
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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
Micro-Ohmmeter
3207
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The Ballantine 4 Digit Micro-ohm Meter 3207 measures Low Resistance in Milli and micro-ohms with precise accuracy. It employs the proven 4-wire measurement technique and eliminates the lead resistance inherent in 2-wire technique to give accurate readings.
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Product
PXI/PXIe LVDT/RVDT Simulator Module, 2-Banks
43-670-103-AABBCC
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The 41/43-670-103 is ideal for the simulation of variable differential transformers (VDT), both linear (LVDT) and rotary (RVDT) types. 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
Party Line Intercom Conversion
COMMS Series
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The stand-alone COMMS 300 and the OG-COMMS openGear® units provide a means to interface between two channels of 2-wire party-line intercom audio and two channels of 4-Wire analog line-level signals. The unit is capable of performing auto nulling for each channel with the push of a button. In addition, each of the 4-Wire input and output channel levels are monitored and displayed on easy to understand front panel VU meters.
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Product
Fastest Flying Probe Test System for Semiconductor Substrate Interconnect Test
GATS-3200
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* Test individual packages or * Test Multi-image panels with Step&Repeat Function * single flying probe top using very high speed voice coil motor (VCM) technology * 50 - 100 tests per second ... high throughput * Dual Flying Probe Top for testing bump-to-bump nets * flying probe head allows testing of all nets including each power and ground point * 4-wire test capability
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Product
Intelligent Power Monitor
iPM
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NAI’s iPM is an Intelligent Power Monitor that provides a precise, instrument grade, digital analysis of input power lines. This advanced, DSP-based unit monitors single-phase, 3-phase 4-wire wye, or 3-phase Delta power lines at various input voltage levels and frequencies.The iPM is equipped with an EIA RS485-compatible serial communications interface that permits additional control functions and readout of diagnostic data, and features a Background Built-in-Test (BIT) that constantly monitors the health of unit hardware and software. This power monitor is designed and qualified to the most stringent performance and environmental requirements, and is ideally suited for rugged defense and industrial applications.
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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
Cable and Harness Tester
CHT
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The Cable and Harness Tester (CHT) provides multiple testing capabilities for up to 300 connector/harness test points. Test capabilities include DC Insulation Resistance (IR), DC and AC Dielectric Withstanding Voltage (DWV), and 2-Wire and 4-Wire Continuity.
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Product
PXIe-4142, 4-Channel, ±24 V, 150 mA PXI Source Measure Unit
782430-01
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PXIe, 4-Channel, ±24 V, 150 mA PXI Source Measure Unit - The PXIe-4142 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 (4-wire) sensing for accurate measurements. The fast sample rate of the PXIe-4142 can reduce measurement times, capture transient device characteristics, and allow quick I V characterization of devices under test (DUTs). With a high-speed sequencing engine, you can synchronize all these SMUs with each other or with other instruments such as switches or high-speed digital test modules.
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Product
PXI/PXIe LVDT/RVDT/Resolver Simulator Module, 2-Banks
43-670-003-AABBCC
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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
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
SparkFun TFT LCD Breakout
1.8" (128x160)
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The SparkFun TFT LCD Breakout is a versatile, colorful, and easy way to experiment with graphics or create a user interface for your project. With a 4-wire SPI interface and microSD card holder, you can use this breakout to easily add visual display/interface capabilities to a project as well as providing all the storage you might need for multimedia files.
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Product
4-Wire Universal Cable/Harness Tester
LX-760+
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Shenzhen Lian Xin Technology Co., Ltd.
The system provides English/Chinese free switch operation interface·4-Wire Measurement
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Product
PXI Matrix Switch: 4x32, 2-Wire, 100Vrms/2A, Armature Relays
M9120A
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The M9120A high-density matrix offers higher voltage switching of multiple channels in a single instance. Any row can be connected to any column, making it ideal for routing instrument signals to the device under test. This 2-wire switch matrix provides the durable armature switches allowing multiple channels to be connected at one time, up to 60W per channel. The 4-wire wide bus can be used to route signals between test instruments and the device under test. Choose from the durable connector block or standard cable connections.
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Product
PXI/PXIe LVDT/RVDT Simulator Module, 2-Banks
41-670-103-AABBCC
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The 41/43-670-103 is ideal for the simulation of variable differential transformers (VDT), both linear (LVDT) and rotary (RVDT) types. 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
TB-2630B , Screw Terminal, Ribbon, PXI Module Multiplexer Terminal Block
781687-01
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The TB-2630B provides the necessary routing to configure the PXI-2630B PXI Multiplexer Switch Module as a single, dual, or quad 1-, 2, or 4-wire multiplexer. You can directly connect the TB-2630B to the front panel I/O connectors of the PXI-2630B. The NI TB-2630B features ribbon cable headers to connect signals to the PXI Multiplexer Switch Module as well as screw terminals for trigger input and trigger output signals.
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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
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
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
RS232 / RS485 / RS422 Isolators/ Isolated Converters
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From 3-wire to 7-wire RS232 isolators, 2-wire RS485 to 4-wire RS422 / RS485 isolators, and USB isolators to USB / RS232 / RS485 / RS422 optically-isolated converters, CommFront has all the industrial-grade optical-isolation devices to protect your assets from the unexpected. If off-the-shelf product does not provide enough security for you, we can even tailor-make the devices, which are customizable right down to the nuts and bolts.
