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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AC Power Analyzers
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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Shunt Resistor
RSR
Power converters and current measurement instruments. Large current shunt resistor for ampere-meters, designed for standard current measurement of electric equipment. Easy current measurement is performed by attaching to current bus bar directly and connecting to ampere-meter through flexible wires.
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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.
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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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Load Cell Indicator
9820
Bipolar, 5-digit display featuring 2000Hz high-bandwidth, +/-10V analog output, front-panel shunt calibration and tare, peak and valley monitoring. Sensor connection is via a removable screw-terminal connector.
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Chip Shunt Resistors: ACQ-200
ECS
These models have high conductive heavy copper connectors, excellent long term stability and low inductance. Maximum soldering temperatures is up to 350C 30 sec.
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Turbine Flowmeters
Titan’s small turbine flowmeter range use a radial flow principle based on the Pelton wheel technique. This well proven method is the ideal way of measuring low rates of flow of low viscosity liquids. For these mini flowmeters, a jet of fluid is directed at a turbine that is mounted on robust low friction sapphire bearings. The geometry of the turbine and the fluid chamber ensures that the rotational speed of the rotor is proportional to the flow rate through the device. The use of this radial arrangement allows more energy to be imparted into the turbine, so the bearing drag is far less important. Furthermore, because more energy is available the bearings themselves can be a lot stronger so increasing the life of the flowmeter. For larger flows, some of the liquid can bypass the turbine chamber, which then behaves as a “shunt” to the metered fluid. Accuracy is still maintained and the output remains linear.
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DC Energy Meter
Multiple channels can be measured by a single meter, EN2450N & EN2450DDifferential current input for all the current channelsProgrammable shunt secondary 50mV to 100mVProgrammable CT Primary for all channels up to 200A - for Hall Effect CTData logging for parameters such as Energy, Load hours and Ampere hoursEasy installation,Compact size, weight and simple wiring
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Repeated Charge Discharge Test Set
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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Differential Sensor, Wide Dynamic Range, 100 MHz
CX1105A
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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ABex Terminal Module for Extending the Functionality of the PXI-501
ABex TM-501 MFI
The ABex TM-501 is an ABex terminal module that extends the multifunction measurement card PXI-501 with additional features. It is located in front of the PXI-501 card.It expands the analog outputs voltage range of the PMUs to -10V up to +40V. Additionally it features a shunt current measurement unit to measure currents up to 500mA
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PXI 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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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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Shunt: ACQ-200
BWR
*5 watts*Resistance values down to 0.0003 ohms*Special tight tolerance are available on request
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Dual Wide Range Power Monitor
LTC2992
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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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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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 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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Crossing Control Bypass Switch
XCBS-DL
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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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.
