4-wire
resistance measurement using an ohmmeter's two each, force and sense leads.
See Also: Resistance
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Product
P104 LVDT/RVDT Measurement Board
73LD4
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NAI’s 73LD4 is a PC104-compliant LVDT/RVDT Measurement Board with six separate transformer-isolated channels. The channels can incorporate up to six programmable LVDT/RVDT-to-Digital Tracking Converters in a stack-through module. Each channel is programmable for 2-, 3-, or 4-wire inputs that automatically range between 2.0 volts and 28 volts, so there is no need to purchase multiple boards set for specific inputs. Operating frequency between 360 Hz and 10 kHz can be specified. Each channel also produces differential incremental encoder (A & B) outputs with programmable resolution and a zero-degree marker pulse.
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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
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
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
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
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
PXI/PXIe LVDT/RVDT/Resolver Simulator Module, 4-Banks
41-670-001-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. 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
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
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
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
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
PXI/PXIe LVDT/RVDT Simulator Module, 2-Banks
43-670-103-AABBCC
Simulator
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
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
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
PXI/PXIe LVDT/RVDT Simulator Module, 2-Banks
41-670-103-AABBCC
Simulator
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
10.1" WSVGA And HD Resolution Industrial Display Kit
IDK-1110W
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10.1" 1024 x 600 with 4-wire Resistive and 1280x800 with Projected Capacitive Touch solution. Brightness of 500 cd/m2 with LED backlight, LVDS signal interface, LED driver board included.
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Product
Signal Conditioners
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Process transmitters isolate, filter amplify, and convert sensor signals to 4-20mA current or 0-10V voltage signals for interfacing with controllers and other instrumentation. Select from 2-wire loop-powered 4-20mA transmitters, 3-wire DC-powered transmitters, or 4-wire AC/DC-powered transmitters. 3-wire and 4-wire models are available as 4-20mA transmitters or voltage transmitters. DIN-rail and field-mount version are available. Configuration is easy with Windows software, push-buttons, switches, or pots for span/zero settings depending on the series.
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Product
Power Quality Analyzers
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3-Phase 4-Wire Power Quality Analyzer Compliant to IEC61000-4-30 Class A Standards with Dynamic 1300V Range, Harmonic and Inter-harmonics Analysis Capabilities
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Product
RTD Measurement for CompactPCI
CPCI390
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The CPCI390 has a 3U form factor and 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. Sensordata is available in °C, °F, K and Ohm. All inputs are optically isolated from the system.
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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
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
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
MAX31856 Thermocouple Sensor Arduino Shield
SEN-30007-T
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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.
