Shunts
An Instrument Shunt is a resistor connected in parallel with a measuring device to move the current range beyond a particular value for which the instrument is capable of measuring directly.
See Also: Current Shunts
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Product
Shunts
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Highly accurate manganin resistance d.c shunts. When a current is passed through the shunt a proportional millivolt output is produced.
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Product
Phase Meter Current Shunts
610 and 650
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Clarke-Hess Communications Research
The Model 610 and 650 Current Shunts are specifically designed to operate with the Model 6000A Precision Phase Meter. These shunts are frequency tuned to have negligible phase shift (less than 5m) at 50/60Hz making them ideal for line frequency applications. They can also be idealized for other frequencies as specified by the user. Consult factory for details.
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Current Transformers And Shunts
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Current transformers allow the different measuring devices to provide reliable and traceable data on the trends involving consumption and production processes in electrical installations. Especially designed to be installed quickly, easily and securely, meeting the most demanding expectations of today's market, covering a wide range of primary currents as well as multiple secondary outputs, both for AC and DC measurement.
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Working Standard Shunts
CSW
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CSW shunts are rated to 100 % continuous current with no loss of accuracy. They are largely immune from connection errors common to many shunts. All CSW shunts include ISO17025 accredited calibration through full current range.
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Precision High Current Resistors/Shunts
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Measurements International Ltd.
The precision high current shunts are a series of High Current Resistors ranging from 1 A to 3000 A with optional air moving fans and resistance values from ohms to micro-ohm.
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Product
12-Ch 10A-250VAC RCV Power Distribution Unit
YAVAR438
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- Hardware controlled Enable Input- 12 Power relays up to 10A 250VAC/DC and 300W or 2.700VA switching power- 12 10-mOhm shunt resistors.- 6 Switched 2-Pole sense channels- Single phase isolated or 3-Phases non-isolated switching capabilities, to or from the device under test (power or load)- VPC TriPaddle 96 pins connector.- NI LabView & TestStand driver.- .NET, C/C++, VB driver.- Soft Front panel for direct interface.- CAN Control or Ethernet (with Ethernet to CAN Gateway).- Self-test module available.- Form A
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High-Frequency Probe, 300 kHz to 3 GHz
85024A
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85024A high-frequency probe makes it easy to perform in-circuit measurements. An input capacitance of only 0.7 pF shunted by 1 megohm of resistance permits high frequency probing without adversely loading the circuit under test. Excellent frequency response and unity gain guarantee high accuracy in swept measurements with this probe. High probe sensitivity and low distortion levels allow measurements to be made while taking advantage of the full dynamic range of RF analyzers.
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Current Sensing
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voltage-output, current-sensing amplifier family that integrates an internal shunt resistor to enable high-accuracy current measurements at common-mode voltages that can vary from 0 V to 36 V, independent of the supply voltage. The device is a bidirectional, low- or high-side current-shunt monitor that allows an external reference to be used to measure current flowing in both directions through the internal current-sensing resistor sensor. The integration of the precision current-sensing resistor provides calibration equivalent measurement accuracy with ultra-low temperature drift performance and ensures an optimized Kelvin layout for the sensing resistor is always obtained.
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High Impedance Differential Clock Divider
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Alliance Support Partners, Inc.
he ASP-DCD-00 board is a high impedance input clock divider circuit. It is designed to provide minimum load to a clock source for frequency measurement. It accept single ended (Unbalanced) or differential (Balanced) signals with amplitudes as little as 100mV rms; it divides the input signal frequency from 2 to 256 times depending on shunt jumper selections on J3. The board requires 5VDC 500mA power source to operate. The output is capable of driving 5V TTL logic levels.
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FD-11637, 8-Channel Strain/Bridge Input Device for FieldDAQ
785641-01
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8-Channel Strain/Bridge Input Device for FieldDAQ - The FD-11637 can measure eight channels and has built-in bridge completion and voltage excitation to support for quarter-, half-, and full-bridge sensors. It also features anti-alias filtering, offset nulling, and shunt calibration to reduce the effect of noise and improve measurement accuracy. The FD-11637 has an ingress protection rating up to IP67 (dust- and water-resistant), can operate in -40 °C to 85 °C environments, and can sustain 100 g shock and 10 grm vibration. The FD-11637 incorporates Time Sensitive Networking (TSN) and features an integrated network switch and built-in power circuitry for simple daisy chaining. You program the FD-11637 with NI-DAQmx, which automatically synchronizes multiple FieldDAQ™ devices. The FD-11637 is ideal for test cell and outdoor environments.
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Multiphase Power Analyzer
2800 Series
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The Valhalla Scientific 2800 High-Precision Power Analyzer is available in 1-, 2-, 3-, 4-, 5-, or 6-phase versions. All voltage inputs 0.3V up to 1500V peak and all current inputs 1.5mA up to 1A; 15mA up to 5A; 1A up to 40A; and shunt inputs 60mV up to 6V are potentially free and exhibit low noise, high common mode suppression, excellent DC-stability, wide frequency range (DC-2MHz) and very low self-heating on current inputs.There is no need to fiddle with DC-compensation, or changing current plugging. All is built into the input sections of the power analyzer, ready for measurements. It is simple to use, your intuition will guide you to operate the Power Analyzer touch screen correctly.
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30 A Current Shunt
34330A
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Measure current safely with this precision 0.001 ohm resistor housed in a plastic case surrounded by epoxy.
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Shunt Isolation Amplifier
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Knick Elektronische Messgeräte GmbH & Co. KG.
Especially to accurately measure large DC currents via shunt resistors, ie for making isolated detection of mV voltage on shunts. Variants with calibrated range selection. Working voltage up to 3600 V AC / DC.
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Crossing Control Bypass Switch
XCBS-DL
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The XCBS-DL is permanently wired into each crossing warning system, and can be configured with either a removable or non-removable bypass key. Simply connect the track connection harness to the designated track connection terminals. To prevent unnecessary operation of the crossing warning system, insert the key and select "bypass", rotate the knife switch to "bypass" and the crossing is disabled. When in the "bypass" position, a Dummy Track Load is connected to the track wire connections in parallel with the rails and the crossing approaches are shorted, preventing unnecessary activation when track equipment is working in the crossing approach circuit. The opening of one track lead may be desired to prevent unnecessary activation with intermittent shunting on the crossing approaches close to the crossing.
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Differential Voltage Probes
DP150/DP200pro
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The DP differential isolation probes are an important accessory for any laboratory involved in power electronics and high voltage systems. These probes allow isolated and floating measurements with any oscilloscope or data recorder, whilst the oscilloscope can remain grounded. Using a DP150 or DP200pro probe, differential and floating measurements can be made on a variety of ac power systems like 230V/110V ac input power supplies, chopped and switching power supplies, thyristor controllers, variable speed motor drives (PWM signals), motor inrush current and measurement across current shunts. The isolated input is made via two 4mm/banana safety sockets. The BNC output allows easy connection to an oscilloscope. The DP probes can be powered from a 9V battery or external power supply.
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AC and DC Current or Voltage Transducers
VT7 AND VT8 Series
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The Model VT7 Series dc voltage transducer produces an output which is directly proportional to the input from dc to 10kHz. It functions as a millivolt dc shunt or a high voltage isolator to 1000V
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DC Current Shunts
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DC current shunts / standards are true 4-terminal devices that precisely measure DC currents from 10 A to 10,000 A. They use special alloys in the resistive elements which are supported on an insulating base for mechanical stability. The 9230A includes special features to reduce the effects of power dissipation and associated self heating errors. These shunts are designed to operate in air at full rated current. These are the best performing, and most widely used, DC metrology shunts in the world.
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DC Electronic Loads
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Keysight DC electronic loads provide you with the flexibility to test a wide range of applications from power-supply test to simulation of high-intensity discharge (HID) headlamps. The 16-bit voltage, current and power-measurement system provides both accuracy and convenience, and eliminates the need for a DMM, external shunts and wiring.
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SparkFun Current Sensor Breakout
INA169
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The INA169 is a “high-side current monitor,” which means that you place a resistor (a “shunt resistor”) on the positive power rail and the INA169 measures the voltage drop across that resistor. The INA169 outputs a small current based on the measured voltage drop. If you place a resistor from the output of the INA169 to ground, you can measure the voltage at the output.
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ADI Test Fixture
TA-6500
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The TA-6500 test fixture combines the features of the OEM's Instrument Servo Tester(T307962), the Pointer/Flag Test Fixture(T307951) and the AD-650/600 Test Panel(T334043) all into one panel to facilitate testing of these Attitude Director Indicator's. The panel switches and adjustment pots are labeled to match the test procedure numbers and the duplicity in marking makes it easier for the technician to understand each function. The UUT interface is through a 96 pin zero insertion force(ZIF) type connector to minimize contact wear. The expanded localizer and nav input pins J2-34/35 are exposed on the panel to facilitate the insertion of a 200 ohm shunt when required. The fixtures rear panel has connectors for the required dual API/Synchro transmitter interface while the panel switches provide the correct routing of each.
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Stand Alone/ Bench Top Load Cell Amplifier/ Conditioner Module
MODEL TMO-2
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The TMO-2 Transducer Modules is a complete differential amplifier/signal conditioners with self contained power. The units provide excitation, balance and span adjustment via precision 10 turn pots, and shunt calibration necessary to couple a user supplied bridge type transducer to an indicating instrument. Full scale output is specified at plus or minus 10 VDC. The TMO-2 provides a floating shunt calibration circuit which applies calibration at the transducer, thereby eliminating errors due to line losses. The excitation supply incorporates a Wagner Ground to greatly improve Common Mode Rejection. The factory set bandwidth of the module is narrow to improve stability for applications such as weighing scales. The removal of a single capacitor will increase the frequency response DC to 60K Hz for dynamic data applications.
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Series Voltage References
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Analog Devices offers a broad line of series voltage references with low dropout, low power, and excellent line regulation. These devices are voltage references that are functionally similar to a three-terminal regulator. Some series voltage references are designed to also operate in shunt mode by biasing the output pin and leaving the input pin open circuit. Series mode voltage references have the advantage that they draw only load and quiescent current from the input supply.
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ABex Terminal Module for Extending the Functionality of the PXI-501
ABex TM-501 MFI
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The ABex TM-501 is an ABex terminal module that extends the multifunction measurement card PXI-501 with additional features. It is located in front of the PXI-501 card.It expands the analog outputs voltage range of the PMUs to -10V up to +40V. Additionally it features a shunt current measurement unit to measure currents up to 500mA
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Current Probes
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Teledyne LeCroy current probes do not require the breaking of a circuit or the insertion of a shunt to make accurate and reliable current measurements. Based on a combination of Hall effect and transformer technology, Teledyne LeCroy current probes are ideal for making accurate AC, DC, and impulse current measurements.
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Tan Delta Test System
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Precision measuring bridge is designed for determining the capacitance and dielectric dissipation factor of liquid and solid insulants, cables, capacitors, line transformers, generators, motors, bushings etc. Furthermore it can also be used for power loss measurement on shunt reactors or similar apparatus. This system is suitable for both low and high voltage measurement at line frequency. Measurement reports can be printed. This measuring equipment has been specially developed to maximise efficiency in production and quality control environments. Its outstanding accuracy also makes it suitable for laboratory and research applications.
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Cross Voltage Testers
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designed to perform the 60 Hz power line cross test/AC power fault tests required in GR 1089 issue 6 table 4.5 surge test 3,4, 4.3,and 6, and for UL 1950 section 6.4 paragraph 3 and 4.. Preset and Adjustable Time Settings Measuring Terminals including Voltage Sense and Current Shunt portals provide a safe location for users to accurately measure test voltages and output current while setting up tests. Calibration of the Mini_PT-600 is designed to be performed with a simple handheld multi-meter and the removable Currents Shunts can be easily sent to a calibration laboratory if required.
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AC Power Sources
CSW Series
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AMETEK Programmable Power, Inc.
The CSW Series represents a new generation of AC/DC power sources that address the increasing demands on test equipment to perform additional functions at a lower cost. By combining a flexible AC/DC power source with a high performance power analyzer, the Compact CSW Series is capable of handling complex applications that have traditionally required multiple systems. The sleek integrated approach of the CSW avoids cable clutter that is commonly found in test systems. All connections are made internally and the need for digital multimeters, power harmonics analyzers, and current shunts or clamps is eliminated.
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High Frequency Clock Divider Board
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Alliance Support Partners, Inc.
Clock Divider is designed to divide high frequency signals, up to 2.5GHz, from 4 to 256 times. It will accept single ended (Unbalanced) or differential (Balanced) signals with amplitudes as little as 100mV rms. The clock division is controlled by 4 shunt jumpers. The circuit can be disabled and the divide by counter reset with 2 control signals. The on board regulator will accept voltages from 4.85 to 15.0V. The output is capable of driving 700mV Peak to Peak into 50 Ohms.
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Connectors, Jumper - Black
INT-10901
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Jumper for 0.1" (2.54mm) spaced headers. These are also known as a 'shunt'. These mate with the 0.1" square-pin headers and are the 'open' frame style. RoHS compliant.
