2-wire
resistance measurement method.
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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
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
Weather Resistant Surge Protector for RS485 Control & 12VDC Power Lines
SP-RS485-12V-O
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Ideal for applications such as video surveillance cameras and access control. Protects sensors running on 22 AWG 2-wire sensor cables or 12VDC power lines against the effects of electrostatic discharge, faulty wiring and lightning. RS485 protection: Stage 1 clamping voltage: ±90V; Stage 2 resistance: 3.3 Ohms; Stage 3 clamping voltage: ±7.5V. 12VDC power lines protection: Stage 1 clamping voltage: ±90V; Stage 2 current rating: 3A; Stage 3: 12V TVS (transient voltage suppression) diode. Screw terminal pairs for RS485 and 12VDC power lines protection. Will also protect two single ended data, analog or control lines. Impact and weather resistant enclosure with locking hinged cover.
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Product
Analog Output Module For Remote I/O
Analog Output Module
The Analog Output Module for Remote I/O features a 2-wire spring terminal connection, selectable output ranges (0 V to 10 V, ±10 V, 0 V to 5 V, ±5 V, 0 mA to 20 mA, 4 mA to 20 mA, and ±20 mA) output ranges, and short circuit proof outputs. A remote I/O system consists of an EtherCAT bus coupler and individual modules mounted on a DIN rail. You control the Analog Output Module for Remote I/O 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.
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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.
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Product
NI TB-2646B Terminal Block for NI 2532B as 1-Wire Quad 4x32 or 2-Wire Dual 4×32 Matrix Matrix Topology Without Column Protection Resistors
782385-13
Terminal Block
The TB-2646B provides the necessary routing to configure the PXI-2532B or PXIe-2532B PXI Matrix Switch Module as a 2-wire dual 4x32 or 1-wire quad 4x32 matrix. You can directly connect the TB-2646B 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-2646B also provides optional isolation resistors to protect the reed relays from capacitive loads.
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Product
Toxic Gas Sensor
Model 100
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Teledyne Gas & Flame Detection
Model DM-100 Series sensors feature intelligent electronics, non-intrusive operator interface and comprehensive fault diagnostics. The sensor is packaged in an electro-polished 316 stainless steel housing fitted with a ¾ inch NPT thread. The plug-in, field replaceable sensor cell features large surface area gold-plated pins that reduce the effects of corrosion in harsh industrial environments. Signal conditioning electronics are completely encapsulated in the sensor housing adding a high level of durability to the design. The packaging is XP-intrinsically safe. This innovative design marks a return to a simple, more affordable, and durable gas detection sensor without compromising quality.Model DM-100 sensors provide a 2-wire loop powered 4-20 mA current signal equivalent to the sensor range of detection. Upper enclosure options are aluminum and stainless steel. Additional accessories include wireless communications, a loop powered digital display. Each sensor is shipped with a splash guard with integral calibration port. Detcon’s toxic gas sensors have a long shelf life and are supported by an industry-leading warranty.
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Product
PXIe-2739 , 256-Crosspoint, 16x16, 2-Wire PXI Matrix Switch Module
782835-39
Matrix Switch Module
256-Crosspoint, 2-Wire PXI Matrix Switch Module—The PXIe‑2739 is a high‐density 16x16 PXI matrix switch module designed for routing signals within automated test systems and using electromechanical relays to perform immediate switch operations. It also offers features to monitor the health of deployed systems and plan for predictive maintenance, including onboard relay count tracking, a temperature sensor, and functional and resistive relay self-tests available through the NI Switch Health Center.
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Product
- RS-485 DIN Rail Mounted Surge Suppressor
Model 8021NX
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FEATURES: Fast Response; Automatic Recovery; Up To 20 MBPS Data Rate; DIN Rail Mounted; Triple Stage Protection; Two Wire. The Model 8021NX is a DIN Rail mounted surge suppressor for 2-wire RS-485 circuits used to protect factory data networks, or, any RS-485 network that wants to avail itself of the DIN Rail packaging concept. The Model 8021NX provides common-mode (line to ground) surge protection and differential mode (line to line) protection for balanced networks. All the inputs, outputs and ground connections are via screw terminals located on the top surface of the device.
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Product
Isolated RS-485
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Analog Devices offers a wide range of standard RS-485/RS-422 transceivers and iCoupler® isolated RS-485/RS-422 transceivers to suit many applications. The RS-485 specification meets the requirements for a truly multipoint communications network, and the standard specifies up to 32 drivers and 32 receivers on a single (2-wire) bus. Some RS-485 transceivers modify the input impedance to allow up to 8× more nodes to be connected to the same bus.
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Product
SWB-2813, 4x21, 1 A, 2-Wire Reed Matrix Module for SwitchBlock
781420-13
Matrix Switch Module
4x21, 1 A, 2-Wire Reed Matrix Module for SwitchBlock - The SWB‑2813 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
NI TB-2644B Terminal Block for NI 2532B as 1-Wire Dual 8x32 Matrix or 2-Wire 8×32 Matrix Topology Without Column Protection Resistors
782385-09
Terminal Block
The TB-2644B provides the necessary routing to configure the PXI-2532B or PXIe-2532B PXI Matrix Switch Module as a 2-wire 8x32 or 1-wire dual 8x32 matrix. You can directly connect the TB-2644B 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-2644B also provides optional isolation resistors to protect the reed relays from capacitive loads.
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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
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
RS-485 and RS-422 Transceivers
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The RS-485 specification meets the requirements for a truly multipoint communications network, and the standard specifies up to 32 drivers and 32 receivers on a single (2-wire) bus. Some RS-485 transceivers modify the input impedance to allow up to 8× more nodes to be connected to the same bus. Analog Devices offers a wide range of standard RS-485/RS-422 transceivers and iCoupler® isolated RS-485/RS-422 transceivers to suit many applications.
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Product
Gas Detectors
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International Gas Detectors Ltd
We offer a vast and versatile product range with detector heads for every possible environment. Pioneering the use of addressable gas detection systems IGD today offer the latest networked systems. Our latest addressable gas detection systems network using IGD’s Sentinel+ 2-Wire protocol for enhanced operation and security. IGD is the home of addressable gas detection but we still offer legacy analogue detectors used to interface to older systems.
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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
Modbus or Laurel ASCII ProtocolSerial Output DIN Rail Transmitters
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Laureate TM Series serial output transmitters can be jumpered for two signal levels: RS232 or RS485. Two serial protocols are selectable in software: Modbus or Laurel's Custom ASCII.Modbus protocol operation is fully compliant with the Modbus Over Serial Line Specification V1.0 (2002) for 2-wire, half-duplex connection.
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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
TB-2635, Screw Terminal, 8x16, 2-Wire PXI Module Matrix Terminal Block
778839-01
Terminal Block
Screw Terminal, 8x16, 2-Wire PXI Module Matrix Terminal Block - The TB-2635 provides the necessary routing to configure the PXI-2529 PXI Matrix Switch Module as a 2-wire 8×16 matrix. You can directly connect the TB-2635 to the front panel I/O connectors of the PXI-2529. The TB-2635 includes screw terminals that provide access to the rows and columns of the matrix.
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Product
Proximity Sensors
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Cutler-Hammer® proximity sensors that deliver the results you're looking for. Choose from photoelectric sensors, 2-wire AC and 3-wire DC inductive sensors, sensors with LED indicators, and more.
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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
PXI Matrix Switch: 4x32, 2-Wire, 100Vrms/2A, Armature Relays
M9120A
Matrix Switch Module
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
16 Channel Multiplexer (2/4-wire) Module for 34970A/34972A
34902A
Multiplexer Module
The Keysight 34902A module for the 34970A/34972A Data Acquisition/Switch Unit employs reed relays to achieve scan rates up to 250 channels-per-second. Use this module for high-throughput automated test applications as well as high-speed data logging and monitoring tasks.
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Product
PXIe-2737, 256-Crosspoint, 4x64, 2-Wire PXI Matrix Switch Module
782835-37
Matrix Switch Module
256-Crosspoint, 4x64, 2-Wire PXI Matrix Switch Module—The PXIe‑2737 is a high‐density 4x64 PXI matrix switch module designed for routing signals within automated test systems and using electromechanical relays to perform immediate switch operations. It also offers features to monitor the health of deployed systems and plan for predictive maintenance, including onboard relay count tracking, a temperature sensor, and functional and resistive relay self-tests available through the NI Switch Health Center.
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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
16-Channel Multiplexer (2 / 4-Wire) Module for DAQ970A and DAQ973A
DAQM902A
Multiplexer Module
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
PXIe-2738 , 256-Crosspoint, 8x32, 2-Wire PXI Matrix Switch Module
782835-38
Matrix Switch Module
256-Crosspoint, 8x32, 2-Wire PXI Matrix Switch Module—The PXIe‑2738 is a high‐density 8x32 PXI matrix switch module designed for routing signals within automated test systems and using electromechanical relays to perform immediate switch operations. It also offers features to monitor the health of deployed systems and plan for predictive maintenance, including onboard relay count tracking, a temperature sensor, and functional and resistive relay self-tests available through the NI Switch Health Center.
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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
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
