Programmable Current Sources
programmatic or dialed-in instruments supplying highly accurate current.
See Also: Current Sources
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Current Sense Amplifiers
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Analog Devices’ current sense amplifiers offer excellent performance for a wide array of automotive and power management applications. These devices accurately amplify small voltages in the presence of large common-mode voltage, and provide high bandwidth, as well as level shifting and bidirectional capability. Excellent dc and ac accuracy over a wide temperature range from –40°C to +125°C minimizes errors in your measurement loop while not sacrificing on cost and package size.
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Light Sources
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Bentham's range of light sources has evolved to suit the requirements of our systems and their users and now offers single or multiple sources from 200nm to 40m:
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DC Constant Current Source
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SCR ELEKTRONIKS have developed equipment namely“DC CONSTANT CURRENT SOURCE”. The system comprises of Constant Current Sources having ranges: 900A continues & 3000A short time at 8V maximum.
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Product
5cc Dual Dopant Source
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Attain precise and stable control of relatively low fluxes for dopant constituents in molecular beam epitaxy (MBE) through this compact dopant source. Its small thermal mass gives it excellent responsiveness, reproducibility, and stabilization for advanced doping profiles, plus consistent flux uniformity across an entire platen. Efficient cell heating minimizes thermal load.
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Product
Time, Current, And Resistance Meter
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AllWin Instrument Science and Technology Co., Ltd.
1. Time, current and resistance can be displayed simultaneously2. Out put current:5~30A. Ground resistance range: 50~600 mohm
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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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AC Programmable Hipot Tester
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Shenzhen Chuangxin Instruments Co., Ltd.
AC Programmable Hipot Tester
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Current Clamps
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Due to its variable measuring functions, the digital clamp meter can be operated universally. Useful details, such as the large display, manual or automatic ranging and measurement position lighting, makes operation particularly easy and reliable.
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Current Transformers
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The Institute of Electrical and Electronic Engineers defines a current transformer (IEEE Std C57.13) as “a transformer intended to reproduce in its secondary circuit, in a definite and known proportion, the current of its primary circuit with the phase relations substantially preserved”. Its primary winding is connected in series with the conductor carrying the current to be measured or to be controlled and its secondary winding is connected to the measuring, protection or control devices. Osborne designs and manufactures current transformers which are used for instrumentation applications, others which are used for power system synchronizing applications and others which are used in protection circuit application. They have been designed to meet specified current ratios, burden impedance and transformation errors.
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Product
Clamp type AC Current Sensor／for Load Current Measurements(CT Series)
CT-23S
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*Ultra compact size*AC 1A～200A*Current measurements of terminal feeder
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AC Current Clamp Adapter
LAD-800
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MULTI MEASURING INSTRUMENTS Co., Ltd.
●Selectable CT ratio 10:1 and 100:1.●φ80mm CT window, possible to measure from leakage to big current up to 1000A.
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Product
High Side Current Sense Amp
QA150
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The QA150 makes ultra-low current measurements of your toughest real-time projects a snap. The QA150 is a high side current to voltage converter. Simply tap into the supply for your various project rails (5V, 3.3V, etc) and the QA150 will convert the currents to voltages that you can then capture on your scope, along with whatever other signals you might need. If you are trying to squeeze every last bit of energy from your batteries, the QA150 is your answer.
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Product
Current Transformers Test Set
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Supreme Instrument Laboratories
The basic unit is sensitive magnetic comparator and also it incorporates electronic null detector to facilitate the balance. The reference Current 5A. or IA. obtained from Standard Current Transformer and in comparison to that the vector length and phase displacement is measured. The ratio error in percentage and phase displacement in minutes are directly compared and indicated on dials.
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Programmable S/R Standard & Simulator
5300
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NAI’s 5300 Synchro/Resolver Standard & Simulator is a laboratory-grade, programmable instrument. This model can be used as a true Synchro/Resolver standard for calibrating and testing Automatic Test Equipment (ATE) for Calibration/Metrology Labs, and for Engineering Design and Production Test environments. It can also be used to measure Angle Position Indicators (API) and Synchro-to-Digital converters for static or dynamic characteristics. This model also may use an external reference waveform.
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Spectroscopy Lamps and Light Sources
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The StellarNet portable Light Sources facilitate measurements in the UV, VIS, and NIR for various samples and application types using standard SMA-905 optical connectors. These low cost modular components are robust, reliable, and designed to last in portable and industrial environments.
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DC/AC Earth Leakage Current Measurement
FDAZCT-11L-0.4
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*Bipolar ±15V Power Supply.*Output ±5V at primary nominal current.*Applicable Frequency DC-18kHz.*Inside Diameter:φ11mm
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Product
2000-6000W AC power source
CX-P2KW
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Shenzhen Chuangxin Instruments Co., Ltd.
The AC power source is made by adopting microcomputer processing chip and high power device. It provides a stable pure sine wave and has voltage, over current, over temperature, overload protection. It can output 0-300V adjustable voltage, and 45-70Hz adjustable frequency as well as fixed frequency as 50 Hz or 60 Hz, 100 Hz and 200 Hz and 400 Hz. This AC power source can simulate power grid of different countries, provide a stable voltage, frequency, waveform which can be used to test and age the exprot products and provide kinds of precision tests for laboratory, measuring room, etc.
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Current Transformer Testers
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Vanguard Instruments Company, Inc.
Performs CT excitation, current-ratio, polarity, and phase angle testsMeasures insulation resistance and winding resistance of the CT seconday windingsMeasures the CT's secondary burdenTest record header information including company, substation name, circuit ID, manufacturer, CT serial number, operator name, and test record-commentsBuilt-in 4.5-inch wide thermal printerPlot Multiple Saturation CurvesStores up to 128 CT test plans and 140 test records internallyUSB, Bluetooth, and USB Flash drive interface
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Product
Clamp type AC Current Sensor／for Load Current Measurements(CT Series)
CT-33S
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*Ultra compact size*AC 1A～200A*Current measurements of feeder
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Programmable DC Electronic Load
M97 series
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The new M97XX series programmable DC electronic load is a new generation product designed from Maynuo Electronic Co.,Ltd. Incorporating high-performance chips, the M97XX series delivers high speed and high accuracy with a resolution of 0.1 mV and 0.01 mA (basic accuracy is 0.03% and basic current rise speed is 2.5 A/μs). M97XX series have wide application from production lines for cell phone chargers, cell phone batteries, electronic vehicle batteries, switching power supplies, linear power supplies, and LED drivers, to research institute, automotive electronic, aeronautic and astronautic, maritime, solar celland fuel cell etc.test and measurement applications. From 150W to 200KW, there are many models to choose from :
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Product
Light Source Colorimeter
CX-HP1
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Shenzhen Chuangxin Instruments Co., Ltd.
Light source colorimeter is a newly developed pocket colorimeter, adopting advanced spectrometer and microprocessor technology. It makes traditional laboratory instrument available for the production on-line quality acceptance, thus greatly improve the efficiency of fluorescent lamp, CFL, LED manufacturing.
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Product
Large Current 1000A Primary Current Injection Test Set
TEST-901
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Beijing GFUVE Electronics Co.,Ltd.
TEST-901 primary current injection test set adopts ARM Chip to control its output process and large capacity of toroidal transformers. It is equipped with LCD display and current meter; it can show primary current value, second current value, turn ratio and the action time. Packing is used as aluminum alloy body with PC panel. TEST-901 is mainly applied to CT turn ratio testing in the power system and contact resistance test which need large current.
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Current Limiting Resistors
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Current Limiting Resistors are designed for limiting the flow of current to some predetermined value and are used mainly to to keep flowing current within certain intervals while controlling the circuit.
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Series Precision Fixed-Ratio Current Transformers
PMT25100
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Power Measurement Technologies Inc.
Precision two-stage toroidal current transformers find application as the reference in determining the accuracy of instrumentation current transformers.
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Product
Thermistors (Temperature Sensors, Current Control)
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The resistance value changes in response to temperature changes in the ambient environment or due to heat generated by applied voltage or current.
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Product
Clamp type DC Current Sensor／for DC Leakage Current Measurements
DCZCT-18S
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*Compact size, General purpose*DC leakage current measurements
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Product
Programmable Attenuators
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JFW offers 50 Ohm and 75 Ohm programmable attenuators with either relay or solid-state designs. 50 Ohm Relay Step Attenuators, 50 Ohm Solid-State Step Attenuators (TTL), 50 Ohm Solid-State Step Attenuators (USB), 75 Ohm Relay Step Attenuators, 75 Ohm Solid-State Step Attenuators, Analog Programmable Attenuators, High Power Solid-State Step Attenuators.
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AC Power Sources
400XAC Series
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Our 400XAC Series AC Power Sources provides both 1Ø and 3Ø AC or DC power in a single box solution. If you need an AC Power Source with superior application flexibility, look no further than the EEC 400XAC. Ideal for both production and laboratory use, this 3 phase AC Power Source provides a unique feature set at a competitive price point. Our exclusive SmartCONFIG feature allows the 400XAC Series to switch from 1 phase to 3 phase power with the push of a button. This flexibility maximizes your investment while providing you the AC and DC power that your application needs. The 400XAC Series AC Power Source includes the following models: 430XAC and 460XAC.
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Digital Current Integrator
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The ORTEC Model 439 Digital Current Integrator was designed to accurately measure DC currents or the average value of pulse currents such as produced by accelerator beams. It digitizes the input current by producing an output pulse for specific values of input charge. A front-panel switch permit the selection of three different amounts of charge (10–10, 10–8 or 10–6 coulomb) required to produce an output pulse. The instrument has a digitizing rate from 0 to 10 kHz to provide wide dynamic range on each setting and high-resolution readout without meter interpolation.
