Current Loops
See Also: Loop, HIL, Loop Testers
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Product
2-Port Serial Interface
APCI-7420-3
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*RS232, RS422, RS485, 20 mA Current Loop (active, passive) with or without optical isolation*Modular structure through MX-modules*With or without optical isolation*Mode configuration free for each port*128-byte FIFO-buffer common interrupt*Automatic direction recognition for RS485*Transmission mode: asynchronous, full, half duplex
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Product
Multi Function Testers
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Kyoritsu Electrical Instruments Works, Ltd.
Live circuit warning LED:Immediate illumination of a warning lamp if the circuit under test is live Auto Discharge:Allows fast and safe discharge of electrical energy stored in capacitive circuits following testing Integral overload protection on internal continuity and insulation test circuitry Autoranging 500V DC test voltage for insulation tests 200mA short circuit current on continuity ranges Loop and RCD Testing Wiring connection check LED''s:Immediate indication if wiring of circuit under test is correct Overheat Protection:Rapid detection of overheating of internal circuitry,display of warning signal to user and automatic halting of measurement Supply Voltage Indication:Can display supply voltage value in loop impedance mode Low Current Loop Impedance Test:Short duration low test current will prevent tripping of many passive RCDs
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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
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
PXI Analog Output/Current Loop Simulator Module - 16 Channel
41-765-001
Analog Output Module
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
PCI Express 16 Reed Relay Output
8004He
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The 8004He PCI Express digital I/O interface provides 16 optically isolated inputs and 16 Reed relay outputs. The isolated inputs protect the PC and other sensitive equipment from the voltage spikes and ground loop currents that are common to industrial environments. The outputs provide high quality, long-life, dry contact switch closures suitable for low-current applications.
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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
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
Analog Output Module
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
PXI/PXIe Analog Output/Current Loop Simulator Module - 8 Channel
43-765-003
Analog Output Module
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
Digital LOOP/PSC/EARTH Tester
1824 LP
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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. (you do not need to add all the bonding points and connection paths)● Displays voltage supply at the transformer(Line to Neutral), without loading the transformer.● Single one smart push button operation; ON, Scroll through results and menus.● Checks wiring integrity (LEDs).● Auto-off / Auto-ranging (software range).● Color-coded test leads.● Combined prospective short circuit current, loop, and earth tester.● Loop test for L-E and PSC between L-N.● Voltage test L-N.● Display can be customized for large orders.
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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
H/L Voltage Clamp Meters
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High Voltage Current Transformation Ratio Tester breaks traditional structure, specially designed for high and low voltage first and secondary loop current, variable ratio, and current leakage test; apply the latest CT technology and mask digital integration technology, composed of special high-voltage clamp, low voltage clamp, host, high voltage insulation rod and monitoring software, etc; its wireless transmission test data can penetrate multiple building obstacles with a straight-line distance of 30 meters.
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Product
PXI Analog Output/Current Loop Simulator Module - 4 Channel
41-765-004
Analog Output Module
The 41/43-765-004 is an 4-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
PXI/PXIe Analog Output/Current Loop Simulator Module - 4 Channel
43-765-004
Analog Output Module
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
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
Microwave Moisture Meter
RX-95
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The system works based on the absorption of microwave energy by water molecules contained inthe x-rayed material. It is a non-contact, non-destructive method of instant measurement of water content - used for materials such as coal, flour, grain, cement, seeds, sugar, etc. Thanks to high measurement sensitivity (resolution greater than 0.01% of water content by weight), short measurement time (about 5 times/sec.) and repeatability of measurement - the system is suitable for continuous measurement of material moisture, e.g. on conveyor belts and its recording on a PC or using a 4-20 mA current loop.
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Product
AC Power Sources, Frequency Converter
MAC-01, -02, -03
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For reliability, all models of the Titan AC Power Sources/Frequency Converters are fully current limit protected against either continuous or transient short circuit or overload conditions. When an overcurrent condition exists, the internal current control loop overrides the voltage control loop and scales back the sinewave drive until it sees a safe output current level.
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Product
PXI/PXIe Analog Output/Current Loop Simulator Module - 12 Channel
43-765-002
Analog Output Module
The 41/43-765-002 is a 12-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
Resistance Tester With Leakage Current (Loop Current)
GT00WD00ZY
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*screen display*Double protection insulation*Non-contact measured resistance, safe, fast
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Product
4-port Serial Interface, Modular, With/without Optical Isolation, 3.3V/5V, With 9-pin Connectors
APCI-7500-3/4C
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*This model has 4x 9-pin D-Sub male connectors on 2 brackets*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)
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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
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
Signal Isolators & Converters
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Devar current loop signal isolators reduce problems found in field measurements when signal transmitters or converters encounter both input and output signals that may be grounded. Current loop isolators eliminate these ground loops and are available as input loop powered or output loop powered instrumentation.
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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
PXI Analog Output/Current Loop Simulator Module - 12 Channel
41-765-002
Analog Output Module
The 41/43-765-002 is a 12-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
Industrial 4-20mA DAC Solution
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Analog Devices portfolio of leading industrial digital-to-analog converters address 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
PXI Analog Output/Current Loop Simulator Module - 8 Channel
41-765-003
Analog Output Module
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
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
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.
