2-wire
resistance measurement method.
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Product
Interface
RAR-cPCI
Interface
Available in a range of configurations to match your needs, the RAR-cPCI provides complete, integrated databus functionality for ARINC 429, ARINC 575 and selected 2-wire, 32-bit protocols in a CompactPCI form factor.
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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
PXIe-2525, 64‐Channel, 2 A, Multibank, 2‐Wire PXI Multiplexer Switch Module
780587-25
Multiplexer Module
64‐Channel, 2 A, Multibank, 2‐Wire PXI Multiplexer Switch Module —The PXIe‑2525 is a high‐density PXI multiplexer switch module that is ideal for routing signals within automated test systems. It uses electromechanical relays to perform immediate switch operations in one of the following 2‑wire multiplexer configurations: 16 bank 4x1, octal 8x1, quad 16x1, dual 32x1, and 64x1. The PXIe‑2525 also features onboard relay counting for relay monitoring.
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Product
LVDT Signal Conditioner
NTC-6000
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Quick and easy setup with front panel push buttons and LED indicatorsSelectable excitation frequency, analog outputs and bandwidthAutomatic excitation synchronization for multiple unit systemsSelf-diagnostics for LVDT failure, disconnect, or short circuitDigital communications via RS-485 2-wire multi-drop busHot swapability — setup can be saved and reloaded via RS-485 portCybersecurity lockout and tamper detectWorks with nearly any AC LVDT, RVDT, or LVRT half bridge
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Product
Temperature Sensors
TT420-LT
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Features • 2-wire, loop-powered 4-20 mA analog output • Attachment probe, sensor, and 2-wire 4-20 mA signal conditioner • Integral 1/2" flexible liquid-tight conduit fittings • TT420Z-LT 1/4” stainless steel probe with 1/8 NPT adapter • TT420S-LT 3/8-16 threaded stud probe • FM approved, Dust Ignition-proof • Class II and III, Div I (E, F, G); NEMA 4
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Product
PXI High Density Multiplexer: 99-ch, 2-Wire, 100Vrms/1A, Armature Relays
M9103A
Multiplexer Module
The M9103A, a high-density, high-power 99-channel multiplexer routes many different channels to a single point. The switches operate in a break-before-make mode that ensures no two points are connected at the same time, or multiple channels can simultaneously connect if needed. This module is ideal for routing multiple analog signals to a measurement device in an automated test environment (ATE) or data acquisition systems. Each channel switch has a high and low for 2-wire switching. The high-quality armature relays are capable of switching up to 100Vrms, with up to 60W of power. Choose from the durable connector block or standard cable connections.
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Product
Industrial Grade PCI DIO 96 Board
MS 1817
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*96 digital input/output lines*Support s all PPI Modes (Mode0, Mode 1 and Mode 2)*5 V TTL/CMOS*Compatible with NI DIO Card*2-wire handshaking capability*Known power-up
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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
4x8 2 Wire USB Modular Switch Matrix
U2751A
Switch Module
The U2751A USB Modular Switch Matrix offers a flexible connection path between the device under test and the test equipment, thus allowing different instruments to be connected to multiple points on the device under test at the same time. This instrument is able to support measurements at a high bandwidth of up to 45MHz. It uses the common non-proprietary standard high-speed USB 2.0 interface that provides ease of connectivity
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Product
20 Channel Multiplexer (2/4-wire) Module for 34970A/34972A
34901A
Multiplexer Module
The Keysight 34901A module for the 34970A/34972A Data Acquisition/Switch Unit is the most versatile multiplexer for general purpose scanning. It combines dense, multi-function switching with 60 channel/second scan rates to address a broad spectrum of data acquisition applications.
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Product
SWB-2814, 8x9, 1 A, 2-Wire Reed Matrix Module for SwitchBlock
781420-14
Matrix Switch Module
8x9, 1 A, 2-Wire Reed Matrix Module for SwitchBlock - The SWB‑2814 is a reed relay matrix module for SwitchBlock systems. Designed for high power, it can operate as an individual relay card or expand in a single carrier or single PXI chassis. You can connect any input to any output, individually or in combination. You can use matrix switches to route signals from oscilloscopes, DMMs, arbitrary waveform generators, and power supplies to various test points on a unit under test (UUT). The primary benefit of matrix switches is simplified wiring—the overall test system can easily and dynamically change the internal connection path without any external manual intervention.
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Product
Toxic Gas Detector
SMC 4501-XX
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The SMC 4501-XX Detector monitors toxic gases such as Hydrogen Sulfide, Carbon Monoxide, Oxygen Deficiency, Chlorine Dioxide, and others. Utilizing 2-wire loop-powered technology, the 4501-XX requires less wiring, leading to better protection from wiring errors.
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Product
Ultra High Density Matrix Switch Card
1260-45
Switch Card
The Astronics 1260-45 offers the highest-density switching matrices in a single-slot C-size VXI module, configurable as 11 different matrices from four 4x16 2-Wire to one 16x16 two-wire. Easily extend this module externally to build a larger matrix in a single VXI chassis to satisfy even the most dense applications.
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Product
External Temperature for PT100 Probe
TGP-4104
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This data logger uses an external PT100 probe to record high temperatures. Probes are available to measure up to 300 and 600C. These are listed in the 'You will also need' section. The PT100 probes are of 3-wire construction and use class A elements, making them more accurate than their 2-wire predecessors.
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Product
2-Wire Bus Buffers
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Renesas' 2-wire bus buffers are designed to improve data transmission speed on SMBus or similar 2-wire serial bus interfaces.
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Product
NI TB-2645B Terminal Block for NI 2532B as 1-Wire Dual 16x16 Matrix or 2-Wire 16×16 Matrix topology With Column Protection Resistors
782385-12
Terminal Block
The TB-2645B provides the necessary routing to configure the PXI-2532B or PXIe-2532B PXI Matrix Switch Module as a 2-wire 16x16 or 1-wire dual 16x16 matrix. You can directly connect the TB-2645B to the front panel I/O connectors of the PXI-2532B or PXIe-2532B. This terminal block includes ribbon cable headers to connect signals to the PXI Matrix Switch Module. The TB-2645B also provides optional isolation resistors to protect the reed relays from capacitive loads.
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Product
PXI-2527, 32‐Channel, 300 V, 2‐Wire PXI Multiplexer Switch Module
778572-27
Multiplexer Module
32‐Channel, 300 V, 2‐Wire PXI Multiplexer Switch Module—The PXI‑2527 is a high‐voltage PXI multiplexer switch module that is ideal for medium‐ to high‐density automated test applications. Featuring high-power electromechanical relays, the PXI‑2527 is the perfect front end for the PXI DMM modules, offering simple channel expansion for a variety of measurements. The PXI‑2527 supports multiple channel configurations including 64x1 1‑wire, 32x1 2‑wire, and 16x1 4‑wire. It also features onboard relay counting for relay monitoring and deterministic operation with hardware triggers to improve test throughput.
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Product
20 Channel Multiplexer (2/4-wire) Module for DAQ970A and DAQ973A
DAQM901A
Multiplexer Module
20 Channel Multiplexer (2/4-wire) Module. High voltage switching capability of up to 300 V and built-in thermocouple reference junction.
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Product
RS232 / RS485 / RS422 / Ethernet Surge Protectors
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Our passive, rugged, industrial-grade RS232 / RS485 / RS422 / Ethernet surge protectors are designed for direct industrial DIN-rail mounting and they come with two (2) or three (3) stages of surge protection — Gas Discharge Tube (GDT), protection resistors, and Transient Voltage Suppressor (TVS) - for maximum protection. From 2-wire RS485, 4-wire RS422 / RS485, to 10 / 100 / 1000M Ethernet, CommFront's surge protectors safeguard your data lines and provide you with a peace of mind.
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Product
Radar Level Transmitter
DR7500
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Drexelbrook DR7500 is a 2-wire 80 GHz radar (FMCW) level transmitter for demanding liquid applications involving narrow tanks with long nozzles and internal obstructions like agitators or heating coils.
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Product
- RS-232 to RS-485 2 Wire with LCD Display
Model 366
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FEATURES: DataSpy® Status Display; Implements Low Cost LAN; Supports 32 Users; Uses Single Twisted Pair; External DTE/DCE Switch; Programmable Contention; Selectable Termination. The Model 366 allows interfacing RS-232 based equipment with networks/equipment using RS-485.
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Product
NI TB-2643B Terminal Block for NI 2532B as 1-Wire Dual 4x64 Matrix or 2-Wire 4×64 Matrix Topology Without Column Protection Resistors
782385-07
Terminal Block
The TB-2643B provides the necessary routing to configure the PXI-2532B or PXIe-2532B PXI Matrix Switch Module as a 2-wire 4x64 or 1-wire dual 4x64 matrix. You can directly connect the TB-2643B to the front panel I/O connectors of the PXI-2532B or PXIe-2532B. This terminal block includes ribbon cable headers to connect signals to the PXI Matrix Switch Module. The TB-2643B also provides optional isolation resistors to protect the reed relays from capacitive loads.
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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
PXIe-2527, 32‐Channel, 300 V, 2‐Wire PXI Multiplexer Switch Module
780587-27
Multiplexer Module
32‐Channel, 300 V, 2‐Wire PXI Multiplexer Switch Module—The PXIe‑2527 is a high‐voltage PXI multiplexer switch module that is ideal for medium‑ to high‑density automated test applications. Featuring high-power electromechanical relays, the PXIe‑2527 is the perfect front end for the PXI DMM modules, offering simple channel expansion for a variety of measurements. The PXIe‑2527 supports multiple channel configurations including 64x1 1‑wire, 32x1 2‑wire, and 16x1 4‑wire. It also features onboard relay counting for relay monitoring and deterministic operation with hardware triggers to improve test throughput.
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Product
TB-2676, Ribbon, 100 V, PXI Module Multiplexer Terminal Block
779535-01
Terminal Block
Ribbon, 100 V, PXI Module Multiplexer Terminal Block - The TB-2676 features ribbon cable headers that help you access all channels of the PXI-2576 Multiplexer Switch Module. You can use the TB-2676 to configure the 16 banks of 4x1 2-wire multiplexers included with the PXI-2576.
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Product
Legacy Liquid Detection Rope Sensor
ENVIROMUX-LDSx-y
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For warning of flooding. Detects liquid depth >0.1" (2.5 mm). Minimum puddle: 0.6" (15 mm) diameter. 100% waterproof electronics. Detects any liquid or moisture, except deionized water. RJ45 connector. Voltage Supply: 12VDC. Current Consumption: 20mA. Supports CAT5/5e/6 cable up to 1,000 ft. (305 m). Available water sensor cable (x) lengths: 1/10/50/100/200/400/600/800/1000 feet. Plenum rating: CL2P (UL). Available 2-wire cable (y) lengths: 5/10/20/50/100 feet. Powered by ENVIROMUX-SEMS-16U and SERIMUX-S-x. Regulatory approvals: CE, RoHS. Requires the ENVIROMUX-SEMS-16U and SERIMUX-S-x to operate. Use self-adhesive clips (ENVIROMUX-CLP10-LD) to prevent sensor rope cable from shifing after installation. ENVIROMUX-CLP10-LD includes 10 clips.
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Product
PXI-2576, 64‐Channel, 2-Wire, Multibank PXI Multiplexer Switch Module
778572-76
Multiplexer Module
64‐Channel, 2-Wire, Multibank PXI Multiplexer Switch Module —The PXI‑2576 is a multibank PXI multiplexer switch module with 16 banks of 4x1 2‑wire multiplexers. With the flexible architecture of the PXI‐2576, you can configure it in a variety of topologies that make it suitable for parallel measurement operations requiring low‐channel counts, or you can combine all multiplexer banks to form a single high‐channel‐count multiplexer featuring 64 2‑wire channels. It also features onboard relay counting for relay monitoring and deterministic operation with hardware triggers to improve test throughput.
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Product
REM-11175, 16-Channel (Output), 24 V, 2-, 3-Wire Digital Module for Remote I/O
784745-01
Digital Module
The REM-11175 is a digital output 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-11175 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-11175 features 2- and 3-wire spring terminal connection methods and circuit and overload protection.
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Product
Multi Function Coil Tester
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This device tests all ECU control, electronic control, or conventional distributor type ignition coils. The Tester comes with a range of connection cables with terminals to suit the majority of 2-wires, 3-wires, or 4-wires Ignition Coil of various car makes. The Ignition Coil Test is designed to detect the faults in the ignition system and whether there is any occurrence of misfire in a sluggish engine.
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Product
PXI Serial Interface Module
Serial Interface
The PXI Serial Interface Module offers a number of options for connecting to serial hardware. You can choose from common serial protocols, such as RS232, RS422, and RS485. The PXI Serial Interface Module also offers various isolation, hyperthreading, and multiprocessor compatibility options as well as 4- and 2-wire transceiver modes for full- and half-duplex communication. NI serial interfaces also appear as standard COM ports for compatibility with programs that use serial communications.
