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
Shunts
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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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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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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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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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AC Current Shunts
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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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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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Product
20V/30A/300W DC Programmable Electronic Load
TOB-IT8512
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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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Data Acquisition Recorders & Loggers
DAS1800
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The DAS1800 can be configured for a wide variety of applications with slots for 10 input modules each supporting 4 or 8 measurement channels. Acquire data from any sensor with a voltage or current output (with shunt), or directly measure voltage, resistance, or temperature using thermocouples or resistance temperature detectors (RTDs).
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Shunt
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Shunts are used with Moving Coil Ammeters for the measurement of current in DC Circuits.
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12-Ch 10A-250VAC RCV Power Distribution Unit
YAVAR438
Switch Module
- Hardware controlled Enable Input- 12 Power relays up to 10A 250VAC/DC and 300W or 2.700VA switching power- 12 10-mOhm shunt resistors.- 6 Switched 2-Pole sense channels- Single phase isolated or 3-Phases non-isolated switching capabilities, to or from the device under test (power or load)- VPC TriPaddle 96 pins connector.- NI LabView & TestStand driver.- .NET, C/C++, VB driver.- Soft Front panel for direct interface.- CAN Control or Ethernet (with Ethernet to CAN Gateway).- Self-test module available.- Form A
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Built-in Measuring Instruments
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PeakTech Prüf- und Messtechnik GmbH
Practical built-in module as voltmeter with freely definable measuring range from 0 to 200mV, 2V, 20V, 200V or 500 V. Current measurements from 0 to 200µA, 2mA, 20mA, 200mA and 2A can be carried out via a shunt. With the snap-in frame, this inexpensive module can be integrated into any front panel of your own construction.
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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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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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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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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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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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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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CAN Sensor/ Interface
Current
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Reach Technologies’ CAN Current Sensors sense and digitize conductor current for collection via CAN. The module is ideal for conveniently adding current data to a distributed CAN network. The CAN Current Sensor is configurable via J1939 or CANopen stacks, and are available in Hall Effect and shunt variants.
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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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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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Precision AC/DC Current Shunt
1625A
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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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Product
FD-11637, 8-Channel Strain/Bridge Input Device for FieldDAQ
785641-01
Strain/Bridge Input Module
8-Channel Strain/Bridge Input Device for FieldDAQ - The FD-11637 can measure eight channels and has built-in bridge completion and voltage excitation to support for quarter-, half-, and full-bridge sensors. It also features anti-alias filtering, offset nulling, and shunt calibration to reduce the effect of noise and improve measurement accuracy. The FD-11637 has an ingress protection rating up to IP67 (dust- and water-resistant), can operate in -40 °C to 85 °C environments, and can sustain 100 g shock and 10 grm vibration. The FD-11637 incorporates Time Sensitive Networking (TSN) and features an integrated network switch and built-in power circuitry for simple daisy chaining. You program the FD-11637 with NI-DAQmx, which automatically synchronizes multiple FieldDAQ™ devices. The FD-11637 is ideal for test cell and outdoor environments.
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DC Electronic Loads
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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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Reference Cells For PIV-IV Systems
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NREL calibrated cell used for calibration transfer.The Abet Technologies solar reference cell is a precision instrument for the determination of solar simulator irradiance levels. The sensor is a mono-crystalline silicon solar cell having an area of2x2cm(4cm).The back of the solar cell is attached to the device in such a way that a good heat transfer to the device housing is guaranteed. Below the solar cell a Pt100 RTD temperature sensor is mounted to allow monitoring of device temperature. The device is not shunted allowing the whole IV-curve to be measured. The solar cell is protected by a high quality fused silica window, assuring spectral sensitivity over a 320 -1100 nm range.
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AC Power Analyzers
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Measure voltage, current and power on 4 channels: DC, 1-phase AC or 3-phase ACMake more accurate power measurements: 0.05% at 50/60 HzMeasure current directly: internal shunts to 50 Arms, or with external probes or transducersAddress multiple test scenarios with isolated inputs
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Crossing Control Bypass Switch
XCBS-DL
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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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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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37 Pin Breakout Interface
VSI-Breakout-37
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The VSI-Breakout-37 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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PXI Strain/Bridge Input Module
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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AC and DC Non Inductive Current Shunt
Series A co-axial shunt and Option 02F/B shunt
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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
