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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 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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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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AC and DC Non Inductive Current Shunt
Series A co-axial shunt and Option 02F/B shunt
Use with wattmeters, DMMs and power analyzers to extend current measurement ranges. Use with phase angle meters to enable phase angle measurements between voltage and current. Ultra low phase shift
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Automatic Capacitance Bridge Tester
HTDR-H / 395
Wuhan Huatian Electric Power Automation Co., Ltd.
Measurement of high voltage shunt capacitor banks for reactive power compensation devices.
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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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Precision AC/DC Current Shunt
1625A
The BLI 1625A is a multiranging, high accuracy, active current shunt, for use in making NIST traceable measurements of currents from 10 microamperes to 100 Amperes. Very high measurement stability has been achieved in our shunt design by using special alloys, compensated by a proprietary Ballantine process to minimize temperature coefficient effects.
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Digital Arrester Clamp Tester
ALCL-40L
MULTI MEASURING INSTRUMENTS Co., Ltd.
Lightning arresters are designed to protect a power distribution system by shunting to ground the high voltage surges caused by lightning. ALCL-40L measures to warn that an arrester is damaged or deteriorated and should not be energized.
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Connectors, Jumper - Black
INT-10901
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.
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High-Frequency Probe, 300 kHz to 3 GHz
85024A
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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AC Current Shunts
CSA Series
Ohm-Labs’ CSA series of ac current shunts are designed as laboratory standards for ac current measurement up to high frequencies.
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Shunts
WSM alternating current measuring resistors have compared with traditional direct current shunt resistors with coaxial voltage tap significantly better high-frequency transmission characteristics. This resulted from a production engineering very complicated structural design of the active part.ISM pulse current measuring resistors allow the metrological recording of the time curve fast current changes large amplitude in the nanosecond range. The ISM are designed for the pulse current measurement with broadband oscilloscopes.
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Stand Alone/ Bench Top Load Cell Amplifier/ Conditioner Module
MODEL TMO-2
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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LV Iron Core Shunt Reactors
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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Midi Logger
GL240
Its compact size contains an isolated input system which ensures that signals are not corrupted by inputs to other channels, thus eliminating wiring concerns. The GL240s multi-type inputs are suitable for voltage, temperature, humidity, pulse, and logic signals, enabling combined measurements of different phenomena like temperature/humidity and voltage. power ground allowing off-ground measurements using shunts, as well as powered or grounded thermocouples.
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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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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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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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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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Shunt: ACQ-200
BWB
*Constant Current up to 100 amps *Four Terminal Configuration*Excellent Long Term Stability*Max. Solder Temperature up to 350C/30 sec*RoHS and REACH Certified*AEC-Q200 Qualified
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Precision High Current Resistors/Shunts
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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Life Cyclic Durability Testing
Environment Associates can provide everything you need for cyclic durability testing and performance fixturing. Services include mechanical cycling to a position or load, fatigue cycling to a fixed load, rotational torque cycling, and simple push/pull cycling. EA can design your fixture with electro-dynamic, air, or hydraulic assistance to mechanically move your part. All of our fixtures can be manufactured to withstand a wide range of temperature, humidity and vibration inputs. If required, forces can be monitored electronically, using a wide variety of inputs (i.e. strain gages, load cells, rotational transducers, thermocouples, shunts, and more). EA can create holding and check fixtures to perform “pre” and “post” evaluation for dimensional issues that may occur during testing. EA can provide fixtures for single tests run internally for EA test labs and can manufacture fixtures to be purchased directly by the customer for their internal use.
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High Impedance Differential Clock Divider
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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Precision Power Shunt Resistors
PSS
*Resistance from 50uOhm to 1mOhms*Power Rating to 100Watt
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Precision Shunt Chip Resistors
SMV
*5W permanent power at 65C*High pulse power rating*Mounting: Reflow and wave-soldering
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High Impedance Active Probes
12C
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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AC Power Sources
CSW Series
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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30 A Current Shunt
34330A
Measure current safely with this precision 0.001 ohm resistor housed in a plastic case surrounded by epoxy.
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Electrical Standards
To verify the performance of an electrical calibrator or dc calibrator, you need an electrical standard. Fluke Calibration standards are found in primary calibration laboratories across the world. A wide range of electrical standards and frequency standards are designed to meet the needs of today’s laboratories for traceability and quality accreditation while also being portable, simple to use, and easy to support. Electrical standards include: Voltage standards; ac/dc transfer standards; ac measurement standards; resistance standards; ratio standards; 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.
