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
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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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
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
Precision Shunts
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Ohm-Labs manufactures metrology grade shunts for precise measurement of current from <1 mA to 3000 A.
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Product
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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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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AC Current Shunts
CSA Series
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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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Product
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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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
Micropower Voltage References
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Analog Devices offers a broad line precision micropower voltage references with extremely low quiescent currents (series references) or minimum shunt currents (shunt voltage references). All of our precision voltage references offer excellent initial accuracy and low temperature drift over time and temperature. Our Reference Plus products combine precision voltage references with comparators or amplifiers.
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Product
Service Ground Test Set
900
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TESCO’s Service Ground Test Set has been designed to check the condition of the ground connection on a secondary service. If for any reason the ground connection has a resistance, this can be immediately detected by the Test Set. The Service Ground Test Set consists of a voltmeter which can be shunted by a resistance of 60 ohms. The voltmeter is of the suppressed zero type with a double range, from 65 to 130 or from 130 to 260, and can be used for checking service voltage independently of the ground test.
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Product
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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Product
Stand Alone/ Bench Top Load Cell Amplifier/ Conditioner Module
MODEL TMO-2A
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The TMO-2A Transducer Modules is a complete differential amplifier/signal conditioners with self contained power. The unit 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. Zero to full scale output is specified at 4-20 mA. The TMO-2A 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. The removal of a single capacitor will increase the frequency response DC to 60K Hz for dynamic data applications.
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Product
Torque Measuring and Monitoring System
WISER 4000
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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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High Impedance Active Probes
34A
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Engineered to meet the stringent demands of advanced high frequency circuit designers. This high impedance probe combines full DC capability, rise/fall times of 120 ps, and a nominal loading input impedance of 10 megohm shunted by 0.1 pf. Signal attenuation is 20:1 with a 50 ohm oscilloscope input.
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Current Sensors
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Measurlogic offers an array of current sensors for every need, including split core, solid core and Rope current transformers (CTs); DC Shunts and Hall Effect Sensors. All of our electrical sensors are designed with an easy, un-intrusive installation in mind. With a low cost and high accuracy guarantee, we provide top of the line solutions for measurement and cost savings for residents and business owners alike.
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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
Repeated Charge Discharge Test Set
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The IS 13341 : 1992 has laid down the requirements for Ageing Test, Self-Healing Test and Destruction Test on Shunt Capacitors of the self healing type for AC Power Systems. The Ageing Test is to be performed at a specified voltage of 1.25 times the rated voltage for 750 hours. The test is to be followed with a repeated discharge cycle test which involves charging of the capacitor to a DC voltage and discharge of the same through an Inductance. Sivananda Electronics has developed this equipment for the benefit of capacitor manufacturers, for the first time in India.
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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
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
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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Product
4-Ch DPDT 10A-250VAC 24VDC Multiplexer
H62004900
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Up to 10A 250Vac 10mOhm Measurement Shunt Controlled via YAV90304 Form F
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Product
Precision Shunt Chip Resistors
SMV
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*5W permanent power at 65C*High pulse power rating*Mounting: Reflow and wave-soldering
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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
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
High Power Shunt Resistors
CS227
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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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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
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
Precision AC/DC Active Current Shunt
2575A
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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.
