Current Loops
See Also: Loop, HIL, Loop Testers
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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
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
Calibrator Process
VA70034
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Shanghai Yi Hua V&A Instrument Co., Ltd. CO.,LTD
Loop calibrator This Calibrator is use to measure or output 0 to 24 mA DC current loop, and 0 to 20 V DC voltage.
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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
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
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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
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
Intelligent Transmitter with Digital Indication
LEO 3
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KELLER AG für Druckmesstechnik
LEO 3 is a micro-processor based transmitter with digital double-display for pressure (top display) and for the output signal (bottom display). The display is powered from the 4...20 mA current loop. Functions:
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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
Multifunction Installation Testers
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Shanghai Beha Electronics Co., Ltd.
Loop impedance and prospective short circuit current measurement• Line impedance and prospective short circuit current measurement• Earth loop resistance in TT-systems• Rotary field test• RCD measurements (contact voltage, trip time, trip current - ramp method)• RCD analysis for test of all RCD parameters • Low Ohm and continuity measurement • Insulation measurement up to 1000V (suitable for 690 V industrial mains systems)• Earth resistance measurement with probes and clamp adapters• Voltage and frequency measurement • Current measurement with clamp adapters(optional)• Power and energy measurements• Harmonics measurement for voltage and current upto the 21st harmonics
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Product
Digital LOOP/PSC/LOAD Tester
1825 LP
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Standard Electric Works Co., Ltd
● Microprocessor-controlled.● Measures the voltage drop as if 16A was flowing between Line and Neutral.● Displays voltage without current (V at 0A).● Display voltage as if 16A flowing between Line and Neutral (V at 16A).● Loop test for L-E● PSC between L-N.● Single one smart push button operation; ON, Scroll through results and menus.● Checks wiring integrity (LEDs).● Auto off/auto ranging (software range).● Combined prospective short circuit current, loop and load tester.● Display can be customized for large orders.
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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
Opto-Isolated Current Loop Signal
4029
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SPECTEC Innovative Sensor Solutions
SPECTEC's Model 4029 digital opto-isolated current loop signal conditioner prevents ground loops and interrupts any galvanic signals riding on magnetic speed sensor's output signal.. This signal conditioner converts magnetic, variable reluctance and inductive sensors' sinusoidal signals into a 4-20 mA output suitable for interfacing with process control units, dataloggers, flow controllers, and computers.
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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 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
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
12 D/A Outputs (±10 VDC or ±25 mA)
DA1
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The DA1 module features 12 independent D/A output channels with a full-scale range of ±10 VDC at ± 25 mA (max). The DA1 provides either voltage or current control loop modes that are programmable for the particular application. The DA1 module also offers external trigger/synchronization signal (RS422/485) capability, which provides/accepts a trigger signal to/from other module(s).
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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
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
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 - 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
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
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 Express 8 Reed Relay Output
8012eS
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The 8012eS PCI Express digital interface provides eight optically isolated inputs and eight Reed relay outputs (SPST). The isolated inputs are non-polarized and rated for 3-30 VDC. Optical isolation protects the PC and other sensitive equipment from the voltage spikes and ground loop currents that are common to industrial environments.
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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
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
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
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
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
Current Loop 20 MA Constant Current SI-module With Optical Isolation
MXTTY
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Current loop 20 mA constant current (active, passive) SI-module with optical isolation.
