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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Precision Metal Clad Shunt Resistor
IRHF
Precision Metal Clad Resistors designed in four- terminal technique, are distinguished by high load capacity as well as excellent accuracy. Isolated voltage and current connections making them suitable for very precise current measurements. Easy current measurement is performed by attaching to current bus directly and connecting to voltage (ampere) metal through flexible wires. The ULH models are UL approved versions. Units have a low inductance, heavy copper terminals. The main application is battery manufacturing test jig.
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20V/30A/300W DC Programmable Electronic Load
TOB-IT8512
Xiamen Tob New Energy Technology Co., Ltd
IT8512 120V/30A/300W DC Programmable Electronic Load for Battery and Power Supply TestHigh performance and affordable single channel DC electronic load. TOB-IT8512 DC electronic loads provide you with the flexibility to test a wide range of applications from power supply, charger to battery. The high resolution voltage(1mV), current(0.1mA) measurement system provides both accuracy and convenience, and eliminates the need for a DMM, external shunts and wiring.
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Load Cell Indicator
9820
Bipolar, 5-digit display featuring 2000Hz high-bandwidth, +/-10V analog output, front-panel shunt calibration and tare, peak and valley monitoring. Sensor connection is via a removable screw-terminal connector.
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Current Probe
DCP-BTA
Vernier Software & Technology, LLC
The Current Probe measures DC and low-frequency AC currents up to 600 mA. Use Current Probes in combination with Differential Voltage Probes to investigate Ohm's Law and explore series and parallel circuits. The 0.1 shunt resistor minimizes changes to your circuit. If currents will exceed 1 A, use the High Current Sensor.
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Signal Conditioner
DMA2
Din rail mountable with user selectable outputs of +/-10V, +/-5V or 4-20 mA. 10-28VDC powered suitable for battery or automotive use. Features 1000 Hz bandwidth and push-button shunt calibration.
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PXI Strain/Bridge Input Module
PXI Strain/Bridge Input Modules feature up to eightchannels that support quarter-, half-, or full-bridge sensors at speeds up to 102.4kS/s. The modules provide increased accuracy, high data throughput, and a range of synchronization features. Optional features include remote sensing, internal bridge completion, and shunt calibration options per channel. PXI Strain/Bridge Input Modules are ideal for dynamic strain, load and pressure measurements, and test cell installations requiring accuracy and flexibility.
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High-Voltage Isolation Amplifier
Knick Elektronische Messgeräte GmbH & Co. KG.
Measurement of DC or AC voltages up to () 3600 V and of large DC currents to about () 20 kA with shunt resistor or directly in the device to () 5A DC and AC. Variants with calibrated range selection.
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DC Current Shunts
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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Selectable Shunt Current Sensor ±40 V, 20 MHz
CX1104A
The CX1104A selectable shunt current sensor is a dedicated accessory for the CX3300 series and enables dynamic current measurements from 1 μA to 15 A up to 20 MHz bandwidth with an available calibrated resistive sensor head attached
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Shunt Isolation Amplifier
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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Series Voltage References
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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Digital Power Meter, 30A
66205
Chroma Systems Solutions, Inc.
Voltage Ranges:15/30/60/150/300/600 Vrms1200Vrms (optional)Current Ranges : 0.005/0.02/0.05/0.2/0.3/0.5/2/5/20/30 ArmsFrequency Range : DC, 15Hz~10kHzEmbedded high speed DSP, 16 bitsAnalog/Digital converters withmax samipling rate up to 250kHzCapable of meeting the IEC 61000-4-7harmonics measurement requirementsSmart Range function provides seamlesspower integration measurement underauto range modeSupports external shunt and CT forhigher current applications5 mA minimum current range &0.1mW power resolutionMeets ENERGY STAR /EN 50564/IEC 62301/ErP requirementsUser-define criteria providesautomatic PASS/FAIL indicationsTHD and user-specify order distortionmeasurementInrush current and energy measurementsVoltage/ Current harmonics measurementsup to 100 ordersUSB (Host) interface provides data loggingfunctionalitySupport GPIB, USB, RS232, LAN (option)interface
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AC and DC Current or Voltage Transducers
VT7 AND VT8 Series
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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SH-Fm Shunt Resistors
SH-Fm
The interchangeable shunts are used to multiply the measuring range of current of measuring instruments.
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Torque Measuring and Monitoring System
WISER 4000
TECAT Performance Systems, LLC
The WISER 4000 system is the latest release of TECAT’s low-cost, ultra-low power and extremely accurate torque sensor. The wireless system has the optional ability to measure 3-axis acceleration, barometric pressure and ambient temperature, all within the same incredibly small footprint. The 4000 includes on-board data logging without PC or DAQ connectivity, and remote flash capability, which enables firmware upgrades without removing the system from the unit under test. Featuring shunt calibration, TECAT’s latest WISER system is designed to simplify instrumentation verification for users, while allowing them to check calibration of the system in the field. In addition, the WISER 4000 has been enhanced with two additional outputs, a higher-speed recording, and is available with custom-built remote enclosures to protect the system’s remote unit and battery from damage due to debris.
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Transient Voltage Suppressors (TVS)
A transient voltage suppressor (TVS) is an avalanche diode specially designed to clamp overvoltages and dissipate high transient power surges. ST’s Transil™ protection devices are able to shunt a high current surge for a short duration.
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Multiphase Power Analyzer
2800 Series
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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Medium Voltage Iron Core Oil-Immersed Shunt Reactor
Iron core Oil-immersed Shunt Reactors act as an absorber of reactive power to increase energy efficiency of the power system.
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Crossing Control Bypass Switch
XCBS-DL
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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Power Metering Precision Shunt Resistore
PMS
These components have E-Beam welded manganese-copper alloy elements giving high strength, stability and reliability. Low thermal EMF and TCR. Small size and minimal power loss. Minimal heat generation and surface temperature due to small total resistance. Proprietary processing technique allows very low resistance values. Ideally suited for KWh meters and sampling sensor shunts. These units are also suitable for custom design.
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Precision AC/DC Active Current Shunt
2575A
A versatile, powerful calibration tool, the 2575A Precision AC-DC Active Current Shunt measures both AC/DC current and works as a standard for low-level resistance calibration requirements.
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SparkFun Current Sensor Breakout
INA169
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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High Power Shunt Resistors
CS227
The CS227 is a metal foil, SOT227 resistor designed to give a high current capability. The metal foil element is situated on an insulated heatsink composed of plated copper. This assembly is then mounted into a durable plastic housing and sealed with high temperature epoxy.
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Capacitance Bridge
1621
The GenRad1621 Capacitance Measurement system is a completely self-contained system capable of capacitance measurements in increments as small as 0.1 aF (10-4 pF) and conductance measurements in increments as small as 100 aU (10-7 U; equivalent to a shunt resistance of 1010 M). Measurements are three terminal, with 2- or 3-terminal connection, and provision is also made for the connection of an external standard for comparison measurements.
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Turbine Flowmeters
Titan’s small turbine flowmeter range use a radial flow principle based on the Pelton wheel technique. This well proven method is the ideal way of measuring low rates of flow of low viscosity liquids. For these mini flowmeters, a jet of fluid is directed at a turbine that is mounted on robust low friction sapphire bearings. The geometry of the turbine and the fluid chamber ensures that the rotational speed of the rotor is proportional to the flow rate through the device. The use of this radial arrangement allows more energy to be imparted into the turbine, so the bearing drag is far less important. Furthermore, because more energy is available the bearings themselves can be a lot stronger so increasing the life of the flowmeter. For larger flows, some of the liquid can bypass the turbine chamber, which then behaves as a “shunt” to the metered fluid. Accuracy is still maintained and the output remains linear.
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Shunt Reactors
ENTES Shunt Reactors are high quality devices which are designed to meet the inductive load demands.
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48-Channel High Performance Strain Gauge Measurement Instrument
EX1629
48-Channel High Performance Strain Gauge Measurement InstrumentSupports quarter-bridge (120, 350Ω or user defined), half-bridge or full-bridge24-bit ADCs, sampling rates up to 25 kSa/sBuilt in programmable differential excitation -8V to 8VBuilt in selectable bridge completionConfigure signal conditioning excitation and bridge completion on a per channel basisSimple, low-cost wiring using RJ-45 telecom connectorsSupports TEDS for easy transducer detection and setupRJ-45 input connector reduces setup cost and timeBuilt in self-calibration and shunt calibrationSupports voltage, ratiometric and linear measurements other than strain measurements.
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Transconductance Amplifier
1620A
The 1620A provides high accuracy current levels from dc to over 10 kHz for calibrating ammeters, current transformers and shunts. It also provides output current up to 100 Amperes and as such may also be used as a high accuracy power supply, and as a power source in welding and bonding applications.
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Shunt Assembly
RSA-8
The RSA-8 Recording Shunt Assembly contains 8 individual shunts with terminal block programming for either a current channel (using the shunt) or bypassing the shunt and using a dropping resistor for conversion to a voltage channel.
