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
- Valhalla Scientific Inc.
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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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Current Sensing
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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Precision Micro-Ohmmeter
4176
Best-selling Valhalla 4176 ohmmeter measures transformers, coils, and shunts the competition can’t. The 4176 provides ultra-stable low-resistance measurements.
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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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6000 Series Analog I/O Modules
Series 6000 analog I/O modules condition, amplify, filter and digitize signals from virtually any transducer. All modules have conditioning & amplifier per channel and nearly all modules allow for setting bridge completion, shunt calibration, transducer power, gain, etc. individually per channel. Following the conditioning/amplifier stage, multi-pole Bessel or Butterworth analog filters are provided on each channel and can be set or bypassed individually by program control. A number of the m...show more -
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Shunt Regulators
These are the standard reference voltage source widely used by the feedback circuits of switching power supplies. Compared to the Zener diode, which is a discrete product, a shunt regulator has much better voltage precision because voltage control is carried out as an IC.
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Signal Conditioners
General Purpose
Encore offers a complete line of General Purpose Signal Conditioning instrumentation to meet even the most demanding requirements. Packaged as interchangeable two-channel plug-in modules, Encore’s broad product line includes frequency to voltage converters, strain gage amplifiers, accelerometer conditioners, digital voltmeters and DC power supplies. All of our systems feature a common CAL input on the rear of the rack which allows for calibration of the entire rack. Calibration function varies...show more -
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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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Electronic Load
* Fully programmable, self-contained, air-cooled solid state load.* Patented design is optimized to provide ultra-low impedance operation for fuel cell testing.* Load is compatible with AC impedance or frequency response analyzers.* Interchangeable shunts for precise operation over a wide dynamic range.* Ten built-in cell voltage monitoring inputs optional. Additional voltage monitoring inputs available.* Ethernet Interface for simple configuration and expansion!* Combine with additional Fideris...show more -
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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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Shunts
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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Isolation Amplifiers
Isolation Amplifiers provide power supply designers with a higher performing, single chip alternative to isolation techniques based on optocouplers and shunt regulators. Analog Devices ADuM3190 and ADuM4190 isolated error amplifiers have a 400 kHz bandwidth, with 0.5% typical initial accuracy at 25°C and 1% total accuracy over the extended temperature range of –40˚C to +125˚C. This provides manufacturers of ac-to-dc and dc-to-dc power supplies with a significant upgrade in speed and operating temperature range, as well as a 5× improvement in transient response.
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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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NI-9238, ±500 mV, 50 kS/s/ch, 24-Bit, Simultaneous Input, 4-Channel C Series Voltage Input Module
783311-01
±500 mV, 50 kS/s/ch, 24-Bit, Simultaneous Input, 4-Channel C Series Voltage Input Module - The NI‑9238 performs differential analog input. The measurement range is compatible with many low-voltage sensors such as current shunts and current transducers in high-current applications. When used with higher-voltage C Series Voltage Input Modules, the NI‑9238 can measure power and energy consumption for applications such as appliance test, industrial machine monitoring, power quality analysis, phasor measurements, and harmonic analysis.
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ABex Current Sense Module for Six Channel UUT Supply Monitoring
ABex TM-406 Current Sense
The ABex TM-406 is a six-channel shunt current measurement extension. It’s designed to work in combination with the Konrad ABex TM-501 and PXI-501.Each of the six shunt current measurement units have a passive measurement shunt, an overcurrent protection, a sense bridge relay and the possibility to route the quiescence current to an ABex measurement device TM-501 with PXI-501.In addition, the ABex TM-406 features 8 isolated digital outputs (IDOs), and 12 measurement inputs, which can be routed to the analog bus.
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9 Pin Breakout Interface
VSI-Breakout-9
The VSI-Breakout-9 is a very useful tool in debugging signals or software in a system. It allows unlimited access to signals within the cabling that might otherwise be difficult to access. The board gives test points at each side of the connector and jumper with a easy to use tabbed shunt to allow for easy disconnection of any particular signal between the connectors. The jumpers also give an opportunity to inject a signal regardless of what signal was originally being driven.
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Precision Current Shunt
Has five precision selectable Ultra stable Current Shunts which ranges from 0.0001 to 1Ω. The Shunt T/C is less than 10ppm, and the internal current meter will measure from 1μA to 1000Amps.
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Wide Angle Scale Instrument
LS-96
Standard Electric Works Co., Ltd
● For ranges higher than 20A DC, use external shunt with a 50mV DC Ammeter.● For ranges higher than 300V DC, use external Volt Divider with a 1mA Voltmeter.● For ranges higher than 5A AC, use external Current Transformer with a 5A AC Ammeter. ● For ranges higher than 600V AC, use external Potential Transformer with a 150V AC Voltmeter.● Full Scale Deflection : 250° ● Accuracy : Class 1.5● Composition : Glass window, ABS resin frame and case, PC glass fiber base mounting fittings included.● Color : Black base and frame, white scale plate and meter body.● Pointer : Stick shape in black color.
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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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25 Pin Breakout Interface
VSI-Breakout-25
The VSI-Breakout-25 is a very useful tool in debugging signals or software in a system. It allows unlimited access to signals within the cabling that might otherwise be difficult to access. The board gives test points at each side of the connector and jumper with a easy to use tabbed shunt to allow for easy disconnection of any particular signal between the connectors. The jumpers also give an opportunity to inject a signal regardless of what signal was originally being driven.
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Reactor Loss Measurement Systems
Measurements International Ltd.
The AccuLoss® SR2020 System by Measurements International emerges as a premium, dependable solution tailored for measuring losses in high-voltage shunt reactors. Specifically engineered to function seamlessly at remarkably low power factors, this system excels in applications demanding extensive scalability. Notably, the AccuLoss® SR2020 System offers two key advantages: unparalleled accuracy and remarkable speed.
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Microprocessor Based Indicator
Strong Anodized NEMA4X-IP56 ALUMINUM 1/8 DIN CASE Compact Design Provides Excitation to Transducers or Sensors Accept DC mV/V, V, mA Signal Proportional Analog Output V or mA Easy to Program using 4 ButtonsFront Panel Shunt Calibration User Programmable High & Low Set Point Standard No-Output or Relay Output Optional 8-Step Output, RS232, or BCD Output Available
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DC Electronic Loads
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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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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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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Signal Conditioner
SGA
Versatile signal conditioner featuring user selectable outputs of +/-10V, +/-5V, 0-10V, 0-5V, 0-20mA and 4-20ma. DC or AC powered with switch selectable filters from 1 to 5kHz and a sealed ABS enclosure. Supports shunt calibration and a wide range of gain settings.
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Impulse Current Measuring Shunts
ICMS
The Impulse Current Measuring Shunts ICMS are new designed tubular shunt types with best response behavior to match the high performance of the TR-AS digital recorder for comparative current measurements. A 1st partial response time less than 10ns and a settling times less than 20ns show the advantage of these shunts. They show no initial overshoot peak, no oscillations and do not need compensation box to optimize the transient behavior as known from e.g. cage shunts.
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Precision Shunt Resistors
PBV, PBH
High power low resistance values and high precision. Low temperature coefficient. Excellent load life stability. Excellent short time over load. Ideal for current sensing applications.
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AC Current Shunts
AC Current Shunts feature low uncertainty (high accuracy), low temperature coefficients and excellent stability. These shunts are purely resistive with extremely small values of reactance. The 7340 shunts may be used over a wide frequency range from DC to 100 kHz and are optimized for use with thermal converters.
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Current Probes
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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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.