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
Selectable Shunt Current Sensor ±40 V, 20 MHz
CX1104A
Power Sensor
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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Product
High Impedance Active Probes
12C
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A high speed, high input impedance active probe for measuring the internal node voltage of integrated circuits. The input is 1 megohm shunted by 0.1 pf and the rise/fall times are 0.8 ns. This instrument has full dc capability and can be used with any oscilloscope. The Model 12C was specially designed so that when used in conjunction with a high input impedance oscilloscope, signal attenuation is 10:1 and with a 50 Ohm input, signal attenuation is 20:1.
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Product
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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Product
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
15 Pin Breakout Interface
VSI-Breakout-15
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The VSI-Breakout-15 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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Product
Dual Wide Range Power Monitor
LTC2992
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The LTC®2992 is a rail-to-rail system monitor that measures current, voltage, and power of two supplies. It features an operating range of 2.7V to 100V and includes a shunt regulator for supplies above 100V. The voltage measurement range of 0V to 100V is independent of the input supply. Two ADCs simultaneously measure each supply’s current. A third ADC monitors the input voltages and four auxiliary external voltages. Each supply’s current and power is added for total system consumption. Minimum and maximum values are stored and an overrange alert with programmable thresholds minimizes the need for software polling. Data is reported via a standard I2C interface. Shutdown mode reduces current consumption to 25μA typically.
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Product
Current Shunt Module
CURS100
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The CURS100 converts a current signal output by a sensor or output device (e.g., 4 to 20 mA) to a voltage that can be measured by a datalogger. The 100 ohm resistor used for the current shunt allows currents up to 25 mA to be read on a 2500 mV range (CR10, CR10X, CR510, CR500) and currents up to 50 mA to be read on a 5000 mV range (CR23X, 21X, CR7, CR5000, CR9000, CR9000X).
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Product
Transient Voltage Suppressors (TVS)
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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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Product
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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Product
Capacitance Bridge
1621
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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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Product
Shunt Regulators
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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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Product
Signal Conditioner
SGA
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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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Product
Digital Power Meter, 30A
66205
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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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Product
Signal Conditioners
General Purpose
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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 based on the modules installed. For example, the Model 633 applies a shunt calibration resistor across the bridge, while the Model 149 applies a reference charge source to the input. Contact Encore today and let our team of design engineers help you determine which of our products is best for your application.
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Product
Load Cell Amplifier Signal Conditioner with Removeable Terminals
MODEL LCA-RTC
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The LCA-RTC Module provide low-cost, dedicated signal conditioning for a single bridge type load cell or torque sensor. Model LCA-RTC comes with removable screw-clamp terminal connectors, which accept wires without soldering.On- board jumper selections include sensitivities from 0.5 mV/V to 10 mV/V, bandwidths from 100 Hz to 30 kHz, and amplified outputs of 0 to ±5V, 0 to ±10V, 0-16 mA, 0-20 mA or 4-20 mA. Zero and span adjustments are via precision 25-turn low-tempco metal film potentiometers.The units can be operated next to the sensor with 4-wire hookup or at distances up to 1 km (3300 feet) with 6-wire hookup. An onboard 87.325 kΩ resistor allows easy shunt calibration at the push of a button. Provision is also made for a user-furnished calibration resistor. Power requirements are 11.8 to 26V DC with load currents from 10 to 60 mA, the latter applying when the unit provides 10V DC excitation to a 350 ohm load cell and delivers a 20 mA analog output.
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Product
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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Product
Differential Sensor, Wide Dynamic Range, 100 MHz
CX1105A
Power Sensor
The CX1105A ultra-low noise differential sensor is a dedicated accessory for the CX3300 series and enables dynamic current measurements from 1 μA to 100 A under up to 100 MHz bandwidth with existing shunt resistors on your test board.
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Product
PXI Based Multifunction Measurement and ICT Instrument
PXI-501
Multifunction Switch/Measure Unit
The PXI-501 is a multifunction measurement instrument for functional and in-circuit measurements.It combines two parametric measurement units with a digital voltmeter, a high voltage current source and a discharge unit. This powerful combination makes it the ideal instrument for classical analog in-circuit test and manufacturing defect analysis with additional functional test capabilities.With it’s fast sampling rate of up to 4MSps it speeds up measurements and is capable of measuring and generating AC signals up to 100kHz.To enhance the PXI-501 capabilities it can be combined with an ABex TM-501 or an ABex TM-404. The ABex TM-501 enhances the in and output range of the PXI-501. Furthermore, it provides a shunt current measurement upgrade. In combination with the ABex TM-404 it’s a complete in-circuit test solution with 86 channels in one ABex slot. For sure it can be upgraded to 2838 test points in one rack by simply adding additional matrix modules.With the above-mentioned terminal modules, the PXI-501 is able to act as a ABex system controller, so that no additional controller is required in the cassis.
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Product
LV Iron Core Shunt Reactors
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Iron core Shunt Reactors act as an absorber of reactive power to increase energy efficiency of the power system. Shunt Reactors are used in order to compensate capacitive reactive power generated by long and lightly loaded transmission lines as well as underground cables, thus allowing the flow of more active power through the system and avoiding over voltages. Shunt Reactors can be directly connected to the power line or to a tertiary winding of a three-winding power or distribution transformer.
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Product
Current Probe
DCP-BTA
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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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Product
Single Phase 2 Circuit Energy Meter Test Bench Type KP-S1000-B
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Bofa Instrument & Equipment Co., Ltd
Single phase 2-circuit energy meter test bench type KP-S1000-B, is a new generation, high precision energy meter calibration equipment. It is especially designed for testing 2-circuit energy meter (shunt circuit and CT circuit), open or closed test link (I-P link) both. It is an ideal testing equipment for mass production of 2-circuit energy meter in meter factory. All the testing procedures can be automatically operated by PC or by Keyboard manually.
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Product
E-Beam Welded Through Hole Shunt Resistors
BWT
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These space saving components feature E-Beam welded construction and full RoHS compliancy.
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Product
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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Product
PXIe-4331, 102.4 kS/s, 24-Bit, 8-Channel PXI Strain/Bridge Input Module
781345-01
Strain/Bridge Input Module
102.4 kS/s, 24-Bit, 8-Channel PXI Strain/Bridge Input Module—The PXIe‑4331 is a high-speed input module that provides integrated data acquisition and signal conditioning for dynamic strain, load, and pressure measurements. This module includes increased accuracy, high data throughput, and synchronization features, making it ideal for high-density measurement systems. To remove noise, the PXIe‑4331 offers antialiasing and digital filters per channel. Each channel also features an independent, programmable excitation voltage. Additionally, the PXIe‑4331 provides remote sensing, internal bridge completion, and shunt calibration options per channel.
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Product
100 Pin Breakout Interface
VSI-Breakout-100
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The VSI-Breakout-100 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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Product
High Current Calibrator
MC151
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MC151 Current calibrator is an accurate current source capable of 120 A. Typical uses include calibration of current sensors, current probes, current transformers, shunts, ammeters, DMMs or as stable current source for test and development applications. The calibrator is equipped with a built-in multimeter that can be used for simulation of programmable transconductance or current amplifier.
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Product
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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Product
Shunt Voltage References
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Analog Devices offers a broad line of shunt precision voltage references that combine excellent accuracy and temperature stability with low noise and small packages. These devices operate in a manner that is functionally equivalent to a Zener diode. The bias current must be set higher than the sum of the maximum quiescent current of the voltage reference and the maximum expected load current. Since shunt voltage references are typically biased with a resistor, the voltage reference can operate on a wide range of input voltages.
