Current Loops
See Also: Loop, HIL, Loop Testers
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Product
PXI Analog Output/Current Loop Simulator Module - 8 Channel
41-765-003
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The 41/43-765-003 is an 8-channel Analog Output Module designed to meet the requirements of industrial control applications utilizing current loops 4 – 20mA. It consists of up to four 16-bit, digital-to-analogue converters (DAC), capable of creating four current outputs each. Output current within 0mA - 4mA and 20mA - 24mA, give the ability to simulate error or extra signaling conditions. The ±24mA mode gives the ability to simulate either sourcing or sinking sensor.
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Product
Loop Meter
MZC-310S
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The MZC-310S is a professional portable meter for testing electrical installations with over-current circuit breakers. The instrument measures short-circuit L-PE, L-N and L-L loop and prospective short-circuit loop current. A measurements can be done either with low testing current (up to 42A) with 2-pole method or high testing current (up to 280A) with 4-pole method that enables measurements with very high accuracy and resolution.
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Product
PAT and Installation Verification Unit
PowerCheck 1557
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The PowerCheck 1557 is a comprehensive PAT and installation verification checkbox. It carries out ongoing performance checks to ensure accurate measurement between calibration intervals. Fully tests Earth Continuity, Insulation Resistance, RCD Trip Time, RCD Trip Current, Loop, PE Conductor Current, Touch Current and Flash tests.
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Product
PXI/PXIe Analog Output/Current Loop Simulator Module - 8 Channel
43-765-003
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The 41/43-765-003 is an 8-channel Analog Output Module designed to meet the requirements of industrial control applications utilising current loops 4 – 20mA. It consists of up to four 16-bit, digital-to-analogue converters (DAC), capable of creating four current outputs each. Output current within 0mA - 4mA and 20mA - 24mA, give the ability to simulate error or extra signalling conditions. The ±24mA mode gives the ability to simulate either sourcing or sinking sensor.
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Product
PCI 16 Reed Relay Output / 16 Isolated Input Digital Interface (10-30V)
8004H
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Optimized for sensing up to 24V inputs, the 8004H PCI digital I/O interface provides 16 optically isolated inputs and 16 Reed relay outputs. The inputs protect the computer equipment from spikes and ground loop current that can be generated in industrial environments, while the outputs provide high quality, long-life, low-current (10 Watt maximum), dry contact switch closures. The relays are normally open, and close when energized.
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Product
Remote Indicators
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ABB field indicators provide a convenient way to access the field instruments data when they are located in remote or difficult to access areas. Powered directly from the 4-20 mA current loop, they require minimal effort to setup.
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Product
PXI Analog Output / Current Loop Simulators
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These modules are aimed at simulating industrial control transceivers, utilizing 4–20mA current loops. The modules include built-in relays for shorts and opens functionality enabling fault insertion testing on every channel and also enable slew rates to be programmed so that different sensors can be effectively mimicked.
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Product
Industrial 4-20mA Driver
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Analog Devices portfolio of leading industrial d/a converters and drivers addresses the challenges of enhancing system accuracy, reliability, and overall functionality while reducing form factor and power dissipation. The products provide a range of programmable output ranges from standard 4–20 mA for current loop communication to ±10 V for actuator control. They simplify industrial system design by offering considerable control functionality and advanced on-chip diagnostics to maximize system up time. ADI industrial converters also eliminate the need for costly calibration routines needed by some traditional discrete architectures.
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Product
Temperature Transmitter
T4111
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Transducer is designed for temperature measurement at C or F by means of an externaltemperature probe with Pt1000 sensor. Measured temperature is converted to linearized unified signal 4-20 mA. Measured values are displayed on LCD display. It is possible to switch OFF theLCD at all. Current loop has two-wire connection and requires power from evaluation device.
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Product
Analog & Digital I/O Modules
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USB analog and digital I/O modules are a complete family of data acquisition modules for use in process control systems. The analog input modules can measure process signals such as DC voltage, thermocouples, 4-20mA current loops, discrete contact closures.
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Product
PXI/PXIe Analog Output/Current Loop Simulator Module - 4 Channel
43-765-004
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The 41/43-765-004 is an 4-channel Analog Output Module designed to meet the requirements of industrial control applications utilising current loops 4 – 20mA. It consists of up to four 16-bit, digital-to-analogue converters (DAC), capable of creating four current outputs each. Output current within 0mA - 4mA and 20mA - 24mA, give the ability to simulate error or extra signalling conditions. The ±24mA mode gives the ability to simulate either sourcing or sinking sensor.
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Product
PXI Analog Output/Current Loop Simulator Module - 16 Channel
41-765-001
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The 41/43-765-001 is a PXI/PXIe 16-channel Analog Output Module designed to meet the requirements of industrial control applications utilizing current loops 4 – 20mA. It consists of up to four 16-bit, digital-to-analogue converters (DAC), capable of creating four current outputs each. Output current within 0mA - 4mA and 20mA - 24mA, give the ability to simulate error or extra signaling conditions. The ±24mA mode gives the ability to simulate either sourcing or sinking sensor.
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Product
Current Loop Supply Isolating Transmitter
Model TWS / TWS 2
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Kusam Electrical Industries Limited
• Aux. Power AC 85 ~ 265V or DC 85 ~ 300V• High Accuracy 0.1% RO at 23 °C ± 5 °C• Output User Selectable• PC Plastic Case, DIN Rail or Wall Mounting• High Dielectric Strength (AC 1.5KV/Min, between Input / Output / Power)
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Product
Current Loop Expansion Kit
OP-SB85C
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This expansion kit supports current loop communications.The kit incorporates a communications circuit with photo-coupler isolation and constant-current power supply of insulated type, thus realizing not only monitoring but also easy communications testing with passive or active current loop devices.
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Product
Digital Electrical Network Analyzer
1826 NA
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Standard Electric Works Co., Ltd
● Microprocessor-controlled.● Measures Earth Resistance without the need for poles in the ground or external measuring wires.● Earth measurement uses the real earth current path and the current generated by the electric network, without the need for any disconnection.● The Earth Resistance displayed is exactly the earth resistance that the earth current will need to go through if an earth fault occurs. No need to add all the bonding points and connection paths resistances.● Displays voltage supply at the transformer (Line to Neutral), without loading the transformer. Displays voltage between Line (Phase) and Earth (Ground), without drawing any current.● Measures the impedance of the line itself so you can analyze and differentiate between the multiples paths of the wiring.● Measures the Neutral Impedance. Single one smart push button operation; ON, Test, Scroll trough results and menus.● Checks wiring integrity (LEDs).● Auto off/auto ranging (software ranging). ● Combined prospective short circuit current, loop, individual wire and Earth Tester.● Voltage test L-N and L-E.● Loop test for L-E and L-N and PSC.● Enables analysis of constituent components in L-E and L-N loops giving resistance of earth, neutral wire, live wire and transformer winding.● Display can be customized for large orders.
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Product
- RS-232 to Current Loop Converter
Model 65A
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FEATURES: Active/Passive Loops; 20 or 60 mA. Operation; DC To 19.2 KBPS; Half/Full Duplex; Optically Isolated; DTE/DCE Selectable. The Model 65A is a small, versatile, RS-232 to Current Loop Converters for use with teletypes or computers providing local terminal input via a 20mA. (or 60 ma.) current loop. The Model 65 includes a wall mounted transformer and internal power supply circuitry.
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Product
Downloading Multifunction Tester
ET4500
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The new ET4500 tester carries out all the tests needed to verify the safety of electrical installations in domestic, commercial and industrial wiring installations in accordance with the latest regulations.
can be used to carry out 3 wire earth testing and has on board memory to store and download all installation test results for documentation.
Everything about the new ET Series has been designed to save time and make testing easier.Fast, reliable high current and non-trip loop testing comes as standard together with a high level of input protection and a CAT IV safety rating .Supplied with a full range of accessories.
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Product
Current Converter AC
NMTI 2
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A modern multipurpose quantity-to-current loop converter designed for installation in switchboards.
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Product
4 High-Voltage/High-Current (External VCC) D/A Outputs
DA5
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Digital-to-Analog (D/A) module DA5 provides 4 independent D/A output channels (half-bridge) utilizing a single external supplied power source with full-scale operating range of 0-65 VDC (V-control mode) and 0-2 A (I-control mode). Alternatively, two channels can be paired (full-bridge) to achieve a full-scale operating range of ±65 V and ±2 A from a single external supplied power source. Linearity/accuracy is ±1% FS range over temperature. The DA5 provides either voltage or current control loop modes, which are programmable for the application.
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Product
HART Protocol Stack
softHART
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SoftHART is the industry-standard smart HART (Highway Addressable Remote Transducer Protocol) communications stack for industrial automation. HART is a bidirectional protocol and communicates over existing 4-20 mA analog current loops, extending communication capabilities without the inconvenience of installing additional wiring.
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Product
Fuse Buddy Current Loop
307M/308B
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*Just clamp your current probe over the loop to access the amperage draw through a fused circuit. *Easy testing access, plugs right into fuse socket, no more hand made adapters. *Testing range 0-30 Amps - Do Not Exceed 30 Amps
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Product
DC current Sensors
CTH
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The CTH sensors convert dc current to an isolated voltage output, the CTHR sensors convert ac current to a dc output signal proportional to the Arms. All popular process control voltage and current loop outputs are available. Through hole or split core options mean that connection is non-intrusive and straightforward. The available input range of the CTH sensors is any value from 5A to 6000Adc.
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Product
AC Current Sensor
RCTi and RCTi 3ph
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The RCTi & RCTrms sensors convert ac current to an isolated 0-5V voltage or 4-20mA current loop. TA5V-5A allows compatibility with existing 1A or 5A CT metering circuits. Both offer a choice of proportional (rms) and instantaneous outputs. The available RCT current ranges are 0-100A to 0-50,000Apk. Both RCTi and RCTrms provide accurate measurement over a wide bandwidth ensuring precise measurement even with harmonically distorted wave shapes - using a flexible clip-on sensing coil. The RCTs are available as single and three phase models.
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Product
PXI/PXIe Analog Output/Current Loop Simulator Module - 16 Channel
43-765-001
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The 41/43-765-001 is a PXI/PXIe 16-channel Analog Output Module designed to meet the requirements of industrial control applications utilising current loops 4 – 20mA. It consists of up to four 16-bit, digital-to-analogue converters (DAC), capable of creating four current outputs each. Output current within 0mA - 4mA and 20mA - 24mA, give the ability to simulate error or extra signalling conditions. The ±24mA mode gives the ability to simulate either sourcing or sinking sensor.
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Product
Measurement & Simulation
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Highland Technology offers a wide array of tools for measurement, simulation, and control. Tachometers, thermocouples, RTDs, precision voltages, current loops, strain gauges, and more can be measured or simulated by Highland's products.
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Product
4-20mA Current Loop D/A Converters
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ADI integrated solutions combine both the D/A converter and driver in one chip to provide the required output directly from the digital domain. Analog Devices’ portfolio of leading industrial D/A converters and drivers provides a range of programmable output ranges from standard 4 mA to 20 mA for current loop communication to ±10 V for actuator control. ADI industrial converters offer considerable control functionality and advanced on-chip diagnostics to maximize system uptime, as well as eliminate the need for costly calibration routines needed by some traditional discrete architectures.
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Product
Loop-Powered Digital Panel Meter
88-PRO
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The 88-PRO Process Meter may be connected directly to a 4-20 mA, 10-50 mA or 1-5 mA current loop, with no need for additional power to the meter. This is because the meter is powered directly by the current loop, developing a maximum voltage drop of 2.5 V.
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Product
4-20mA Current Loop USB Data Logger
EL-USB-4
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This data logger measures and stores up to 32,000 current loop readings over flashing red and green LEDs. The data logger features a pair of screw terminals and is supplied complete with a a 4-20mA d.c. measurement range. The user can easily set up the logging rate and start time, and download the stored data by plugging the module straight into a PCs USB port and running the purpose designed software under Windows 2000, XP or Vista
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Product
4 (High Current) D/A Outputs (±40 VDC or +100 mA)
DA3
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The DA3 module features 4 high-current D/A output channels with a full-scale range of ±40 VDC or ±100 mA (max). The DA3 provides either voltage or current control loop modes that are programmable for the particular application.
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Product
4-Port Serial Interface, Modular, With/Without Optical Isolation, 3.3V
CPCI-7500
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*This Model has a 37-pin D-Sub male connector*RS232, RS422, RS485, 20 mA Current Loop*Modular structure through SI modules*With or without optical isolation*Mode configuration free for each port*128-byte FIFO-buffer, common interrupt*Transfer rate programmable up to 115,200 Baud*Option: up to 1 MBaud for RS485 and RS422*Automatic direction recognition for RS48*Mode: configurable RS232, RS422, RS485, 20 mA Current Loop (active, passive) with or without isolation (SI modules)*Transmission mode asynchronous, full, half duplex*Transfer rate: progr. up to 115.2 kBaud up to 1 MBaud on request*Protocol: 5, 6, 7 or 8-bit character 1, 1? or 2 stop bits*Parity: even, odd, none, mark or space*Interrupt lines: automatic through BIOS
