2-wire
resistance measurement method.
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Product
Speed Sensor Intrinsically Safe
ST420
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Features • 2-wire, loop-powered 4-20 mA analog output • No user calibration – works right out of the box • Standard and custom measurement ranges available • Reverse-wiring protected • Works with Electro-Sensors magnetic pulser discs / wraps Rugged stainless steel M18x1 housing; UL listed, Intrinsically Safe (IS); Class I, Div I (C, D) Class II, Div I (E, F, G)
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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
Speed Sensors Dust Ignition-Proof
ST420-LT / ST420-DI
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Features • 2-wire, loop-powered 4-20 mA analog output • No user calibration – works right out of the box • Standard and custom measurement ranges available • Reverse-wiring protected Rugged stainless steel M18x1 housing with integral conduit attachment; FM approved, dust ignition-proof. Class II, Div I (E, F, G); NEMA 4X, IP65
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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
Interface
RCEI-530
Interface
Available in a range of configurations to match your needs, the RCEI-530 provides complete, integrated databus functionality for ARINC 429, ARINC 575 and selected 2-wire, 32-bit protocols. The RCEI-530 supports maximum data throughput on all channels while providing onboard message scheduling, label filtering, multiple buffering options, time-tagging, error detection and avionics-level I/O discretes, with support for either 33 MHz or 66 MHz PCI interfaces.
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Product
ARINC interface
RAR-EC
Interface
Available in a range of configurations to match your needs, the 11 channel RAR-EC provides complete, integrated databus functionality for ARINC 429, ARINC 575 and selected 2-wire, 32-bit protocols, for an ExpressCard interface. The RAR-EC supports maximum data throughput on all channels while providing onboard message scheduling, label filtering, multiple buffering options, time-tagging, error detection and four avionics-level I/O discretes.
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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
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
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
- 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
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
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
Serial Bus Buffers, Extenders, and Accelerators
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The Analog Devices family of I2C solutions support hot swappable, 2-wire bidirectional bus buffers to allow I/O card insertion into a live backplane without corruption of the data and clock busses. Additional supported 2-wire buses include SMBus, PMBus, the ATCA intelligent platform management bus (IPMB), and the HDMI DDC bus. I2C/SMBus Accelerators improve bus transitions to allows multiple device connections or a longer, more capacitive interconnect, without compromising slew rates or bus performance. ADI's software-programmable and pin-selectable I2C multiplexers help resolve I2C address limitations, increase fan-in or fan-out, and integrate bus buffers and rise time accelerators for an all-in-one solution. Resistor configurable I2C address translators can be configured with over 100 unique slave addresses to allow multiple slave devices with the same address to coexist on the same bus.
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Product
NI TB-2641B Terminal Block for NI 2532B as 1-Wire 8x64 Matrix topology With Column Protection Resistors
782385-04
Terminal Block
The TB-2641B provides the necessary routing to configure the PXI-2532B or PXIe-2532B PXI Matrix Switch Module as a 2-wire 4x128 matrix. You can directly connect the TB-2641B 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-2641B also provides optional isolation resistors to protect the reed relays from capacitive loads.
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Product
Digital Power Recorder
MPR-601W-02
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*Applicable for single phase 2wires and single phase 3wires and 3phase 3wires system*Wide measuring range up to 0～500V/500A*Easy data logging by USB flash memory
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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
Emergency/Panic Button
ENVIROMUX-EBS
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Sends activation signal when button is pressed. For normally closed or normally open circuit connections. 2-wire interface. Screw terminal. Maximum cable length: 1,000 ft (305 m). Dimensions WxDxH: 1.7x2.9x4.6 in (43x74x117 mm). Regulatory approvals: RoHS.
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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
Switch Mainframe
SW1001
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Switch between voltmeter and battery tester while testing. 66 channels max. (2-wire) to 18 channels max. (4-terminal pair). Circuit design friendly for impedance measurements that minimize errors between channels (Effect: 0.01% f.s.*). For BT4560 100 mΩ range, R measurements, and a measurement frequency of 1 kHz. For OCV measurement, internal resistance measurement, and external potential measurement of battery cells. Measure battery modules up to 60 V DC.
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Product
In-Line IR Sensor
ILA
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10:1 Distance to Target Ratio, 32 to 932F. Dwyer Series ILA Non-Contact Sensors, measure temperatures from 32 to 932F (0 to 500C) and provide a linear 4 to 20 mA, 0 to 5 VDC or thermocouple output. The 2-wire signal is compatible with almost any indicator, controller, recorder, data logger, etc., without the need for special interfacing or signal conditioning.
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Product
Interface RS-485 and RS-422
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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
Dining Isolation Amplifier
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Knick Elektronische Messgeräte GmbH & Co. KG.
To feed and Isolation of 2-wire transmitters / sensors or SMART transmitters with HART transmission. Working voltage up to 2500 V AC / DC. Available for hazardous and non-hazardous area.
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Product
TB-2636, Screw Terminal, 4x32, 2-Wire PXI Module Matrix Terminal Block
196762-01
Terminal Block
The TB-2636 provides the necessary routing to configure the PXI-2529 PXI Matrix Switch Module as a 2-wire 4×32 matrix. You can directly connect the TB-2636 to the front panel I/O connectors of the PXI-2529. The TB-2636 includes screw terminals that provide access to the rows and columns of the matrix.
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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
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
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
Keysight Dual 4x8 Armature Matrix for 34980A
34931A
Matrix Switch Module
The Keysight 34931A module for the 34980A Multifunction Switch/Measure Unit gives you the most flexible connection path between your device under test and your test equipment, allowing different instruments to be connected to multiple points on your device under test at the same time. Dual 4x8, 8x8, or 4x16 configurations 64 2-wire cross-points Connections to the internal DMM Expandable via four 2-wire analog buses Relay counter Latching armature relays 300 V, 1 A switch; 2 A carry current
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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
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
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.
