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 / wrapsRugged 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
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
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
Keysight Dual/Quad 4x8 Reed Matrix for 34980A
34933A
Matrix Switch Module
The Keysight 34933A 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 2-wire configurations 64 2-wire or 128 1-wire cross-points High-speed reed relays Connections to the internal DMM Expandable via four 2-wire analog buses Relay counter ±150 V peak, .5 A switch, 1.5 A carry current
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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
Door Contact Sensor
ENVIROMUX-M-DCS
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Monitors access with a magnetic bridge sensor, which responds to any magnetic material (no special inserts necessary). Can also be used for monitoring side wall and covers. Includes mounting hardware. For normally closed circuit connection. 2-wire interface. Screw terminal. Maximum cable length: 1,000 ft. Wide actuating gap, approximately 1". Dimensions WxDxH (in): 0.5x0.5x2 (Switch), 0.5x0.5x2 (Magnet). Operating temperature: 32 to 158°F (0 to 70°C). Regulatory approvals: RoHS.
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Product
VXI 16-Channel, 2-Wire LVDT/RVDT Simulation
65DL1
Simulator
NAI’s 65DL1 is a 16-channel, 2-wire, LVDT/RVDT Simulation Instrument on a VXI board. This single-slot, message-based board provides 16 independent, transformer-isolated, LVDT/RVDT, programmable 2-wire outputs (up to 34 V), wrap-around self-test, and an onboard programmable excitation supply.
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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
T100 Toxic Gas Transmitter
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The T100 is a 4-20mA 2-wire transmitter that can measure a wide range of gases. Housed in a rugged, compact metal enclosure, it is designed to be maintenance free and inherently stable.
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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
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
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
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
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
Temperature Sensors
TT420
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Features• 2-wire, loop-powered 4-20mA analog output• Attachment probe, sensor, and 2-wire 4-20 mA signal conditioner• Compatible with PLCs, meters, and data acquisition systems• No user calibration• TT420Z 1/4" stainless steel probe • TT420S 1/4-28 threaded stud – screws into any 1/4-28 tap• TT420F mounts onto any flat surface• UL listed, Intrinsically Safe (IS)• Class I, (C, D) and Class II, (E, F, G)
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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
NI TB-2643B Terminal Block for NI 2532B as 1-Wire Dual 4x64 Matrix or 2-Wire 4×64 Matrix topology With Column Protection Resistors
782385-08
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
Serial Interface Device
Serial Interface
The Serial Interface Device offers a number of options for connecting to serial hardware. You can choose from Ethernet, USB, PCI, PCIe, or ExpressCard interfaces to add up to 16 serial ports to your system. You can choose from common serial protocols, such as RS232, RS422, and RS485. The Serial Interface Device also offers various isolation, hyperthreading, and multiprocessor compatibility options. Some models also support 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.
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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
NI TB-2641B Terminal Block for NI 2532B as 1-Wire 8x64 Matrix Topology Without Column Protection Resistors
782385-03
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
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
- 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
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
Interface
RAR-PCIE
Interface
Available in a range of configurations to match your needs, RAR-PCIE provides complete, integrated databus functionality for ARINC 429, ARINC 575 and selected 2-wire, 32-bit protocols.
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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
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
NI TB-2645B Terminal Block for NI 2532B as 1-Wire Dual 16x16 Matrix or 2-Wire 16×16 Matrix Topology Without Column Protection Resistors
782385-11
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
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
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
IEC60695-11-2 Single Wire And Cable Vertical Burning Tester
CX-D12
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Shenzhen Chuangxin Instruments Co., Ltd.
It’s strictly designed according to IEC60695-11-2, IEC60332-1, GB/T18380.11-2008, GB/T18380.12-2008 etc. Stainless steel screen with a sliding burner handle support for approaching or movingback the flame from the sample under test according to the CEI standards for test on cables.
