Current Sources
See Also: Programmable Current Sources, Battery, Voltage Current Sources
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SpikeSafe DC / Continuous Pulsed Current Sources
The Vektrex SpikeSafe™ DC / Continuous Pulse (DCP) Current Sources provide reliable DC or pulsed drive for LED or laser diode reliability testing, IESNA LM-80 maintenance testing, and other test applications requiring DC or continuous pulse current. Models support currents from 500mA to 60A and compliance voltages from 50V to 400V. All models feature individual channel control, accurate pulsing over long output cables, precise current, precision pulsing for improved measurement repeatability, and high power density — typically 6.4kW-8kW.
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Precision Current Sources
HighFinesse Precision Current Sources have been developed for experiments and quantum technologies in the areas of cold-atom and solid state physics. The linearly regulated BCS (Bipolar Current Source) and UCS (Unipolar Current Source) series deliver highly stable, low noise source currents for high precision magnetic field control. The current output is floating or is on a used defined potential. Ultrafast response to control signals and trigger functions, clear grounding, connection and signal isolation schemes make the integration of the current sources into complex experimental systems easy.
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AC and DC Current Sources
Programmable AC and DC current sources that provide precise, low noise, stable currents for a number of applications.
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SpikeSafe DC Current Sources
The Vektrex SpikeSafe DC Current Sources provide reliable drive for LED/laser diode reliability, IESNA LM-80 test, and other current-driven test applications. Models support currents from 500mA to 60A and compliance voltages from 50V to 400V. All models feature individual channel control, precise current, and high power density — typically 6.4kW-8kW.
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Calibrator, Calibrated, Current, 185 mm, 78 mm, 38 mm, ± (0.25% FS +1 digit), ± (0.5%FS + 1 digit)
72-6694 CAL
The 72-6694 CAL from Tenma is a current calibrator. It provides quality and accuracy of handheld calibrator of precision current source. It features large LCD display (maximum display counts 1999, 13mm (0.5") digit size). The current calibrator has 006P DC 9V, MN1604/PP3 battery or equivalent alkaline type or heavy duty type power supply. The dimension is 185mm × 78mm × 38mm (7.3" × 3" × 1.5") and weight is 265g/0.58lb (including battery). It has adjustable 0 to 24mA current source, 2 ranges (0 to 19.99mA (0.01mA display resolution, ±(0.25% FS + 1d) accuracy), 0 to 24mA (0.1mA display resolution, ±(0.5% FS + 1d) accuracy).
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FPP Software
Four Point Probe
Materials Development Corporation
For use with a manual four point prober, the MDC FPP Software operates in a convenient, single screen that displays both measurement parameters and testresults. The FPP software can measure Resistivity, Conductivity, Resistance, Doping, Thickness, and SheetResistance when used with a compatible current source and voltmeter or SMU.
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PC Based High Current Test Set for Circuit Breakers and Temperature Rise Test Equipment
This equipment comprises of high current source for testing of circuit breakers with additional facility for temperature rise testing (thus incorporating testing for moulded case, vacuum & air circuit breakers as per IEC 60947-2). The system integrates a servo controlled source with closed loop current feedback to maintain the current constant. It has the necessary instrumentation for maintaining current at full load & other conditions arising in testing at high current. The bench has a PC based control system with temperature data logger (24 channel with ch-ch isolation amplifiers). The data logger displays as well as stores a set of temperature values with time.
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Calibrator, Calibrated w/D & U, Current, 185 mm, 78 mm, 38 mm
72-6694 CAL DU
The 72-6694 CAL DU from Tenma is a current calibrator. It provides quality and accuracy of handheld calibrator of precision current source. It features large LCD display (maximum display counts 1999, 13mm (0.5") digit size). The current calibrator has 006P DC 9V, MN1604/PP3 battery or equivalent alkaline type or heavy duty type power supply. The dimension is 185mm × 78mm × 38mm (7.3" × 3" × 1.5") and weight is 265g/0.58lb (including battery). It has adjustable 0 to 24mA current source, 2 ranges (0 to 19.99mA (0.01mA display resolution, ±(0.25% FS + 1d) accuracy), 0 to 24mA (0.1mA display resolution, ±(0.5% FS + 1d) accuracy).
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Isolated Digital Expansion Board
MSXB 078
The Microstar Laboratories Isolated Digital Expansion Board, part number MSXB 078, provides isolated digital expansion for Data Acquisition Processor (DAP) systems. Use these boards to eliminate ground currents – a potential source of noise in your measurement and control signals – and eliminate timing errors from high-channel count digital I/O.
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Biosensor isoPod
EP352
A compact signal conditioner for monitoring low current, two-electrode (anode and cathode) amperometric sensors.Electrical isolation ensures that readings are not influenced by nearby current sources such as conductivity, or voltammetric electrodes.
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Laser Diode Drivers
Berkeley Nucleonics Corporation
Provides a laser diode with a stable, low-noise current source.
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MCB Magnetic (Instantaneous) Trip Test Bench
The test bench is specially built for low voltage- B, C & D curve MCBs. Specially designed custom built jigs are able to accommodate single, double, three and four pole MCBs. Decades of experience has helped us to design current source (transformer) in a special way such that good current regulation and high accuracy is ensured with a variable range without the use of any variable transformer in the system. The product is better than the competition with conventional technology at a lesser price!
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CT/VT Test System
Fully pre-wired comprehensive turn test system. *Suitable for CTs up to 6000A & VTs up to 132kV. * Precision to (0.005 class) internal multi-ratio standard CT. * Internal 4KA current source. * State-of-the-art Instrument Transformer Test Set AITTS-98 with computer & printer interfaces. * Electronic potential divider facilitates testing any VT ratio upto 132kV. * Current & potential burdens.
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DC Bias Current Source
TH1778B
Changzhou Tonghui Electronic Co., Ltd.
■ Test Frequency: 0Hz - 2MHz ■ Provide 0~20A of constant current output ■ No support of output extension
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Three Phase Secondary Current Injection Test Set
TEST-330B
Beijing GFUVE Electronics Co.,Ltd.
Three phase secondary current injection test set is testing relay set, protective device, instruments, output ac dc current and voltage source, embedded Window XP system.
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High Current Calibrator
MC151
MC151 Current calibrator is an accurate current source capable of 120 A. Typical uses include calibration of current sensors, current probes, current transformers, shunts, ammeters, DMMs or as stable current source for test and development applications. The calibrator is equipped with a built-in multimeter that can be used for simulation of programmable transconductance or current amplifier.
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16-Channel RTD Signal Conditioning Card
ProDAQ 5821
The ProDAQ 5821 series of Signal Conditioning Cards is designed to interface with a variety of sensors, principally RTDs, Thermistors, Cryogenic Diodes and Voltage type sensors. Each version of the 5821 provides the capability of precise 4-wire measurement. In order to achieve this, a precise 500μA constant current source is provided per channel. The current source can be disabled on a per channel basis and is monitored to ensure that current is flowing. The value of the output current is stored on-board after calibration. In order to achieve the highest accuracy the output current may be automatically calibrated 'on-the-fly' using the ProDAQ 3416 24-bit Sigma-Delta ADC card and an on-board precision resistor.
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Power Supplies
Toellner Electronic Instrumente GmbH
A power supply is an electrical device that supplies electric power to an electrical load. The main purpose of a power supply is to convert electric current from a source to the correct voltage, current, and frequency to power the load.
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Programmable DC Current Source
Model 121
The Model 121 programmable DC current source is a precision instrument suitable for bench-top use or panel-mounted operation in labs, test facilities, and manufacturing environments. It provides a low-noise, highly stable source of current up to 100 mA, with convenient manual selection through 13 pre-set output levels, each representing a ten-fold change in power when attached to a resistive load. A “user” setting allows the current output to be defined anywhere within the operating range of the unit, from 100 nA to 100 mA.
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DC Bias Current Source
TH1778A
Changzhou Tonghui Electronic Co., Ltd.
The instrument adopts a new generation AC/DC superposition test theory to adapt test requirements for high precision and high frequency. The built-in embedded MCU with high-performance can quickly respond to host and slave machine condition or malfunction and make real time indication, which helps improve the work efficiency. The new designed friendly graphical operation interface, included 5-foot control modes and full touch operation provides convenience and efficiency for users. New file management system with easy, prompt and accurate operation can save a group of real-time setting file and 99 groups of user defined setting files. It can provide pushed information indication and cache 2 real-time information. Being provided with two modes of SCPI instruction systems, it is convenient to set up production lines or single machine test. Also, it can connect with any device with serial port and which refer to the SCPI instruction system design of this machine.
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Parasitic Drain Tester
64970
Replaceable in-line fuses protect both the meter and tester in the event a high current source on the vehicle is left on. The multimeter is bypassed with the switch during connection in case of a power surge. The tester and meter can remain connected until other computer systems shut down, isolating the drain. As a convenience, stacking banana connectors are used on the tester. This allows voltage to be measured on various locations on the vehicle during the drain test, using standard test leads.
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Test Bench For Circuit Breaker
SCR ELEKTRONIKS have developed Test Bench for Circuit Breaker to test 2, 5 & 10 at a time. Panel is provided with constant DC current source.
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16 Thermocouples/RTD Ch
APCI-3200-16
18-bit resolution, 16-bit accuracyEach channel can be configured either for thermocouples/RTD or as an analog voltage input channel16 analog input channels for thermocouple typesJ, K, T, E, R, S, B, N - or 8 diff. analog input channels for the acquisition of resistance temperature detectors (Pt100)- or 16 SE/8 differential analog voltage input channels, ± 2.5 V8 independent current sources for resistance temperature detectors (RTD) and one current source for cold junction compensationCold junction compensation (on separate screw terminal board PX 3200)Gain and offset calibrationLinearisation through table and calculation for the thermocouple types J, K, T, E, R, S, B, N and RTDsProgrammable gain16-bit accuracy with sample rates of 20, 40, 80 or 160 Hz (other rates on request)4 digital input channels, 24 V and 3 digital output channels, open collector, isolated
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Three-phase Fully Automatic Test System
TS33
Calmet Smart Calibration Devices
The Calmet TS33 portable test system consists of a three-phase reference meter of accuracy class 0.02%, 0.04% or 0.1% and an integrated three-phase current and voltage source up to 3x120A/600V. The TS33 is designed for analysis of complete metering installations and local mains conditions.
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Magnetic System
NMR-EA300 System
The NMR-EA300 system is the reference for calibrating magnetic sensors. It allows to generate an absolute magnetic field at <±10mG (0.1 uT) without temperature drift (<0.1ppm/C°) over a range from 14mT to 3T. This system is composed of an EA300 electromagnet with NMR poles, a MPU-16U ±150A ±70V current source of class 1ppm and a NMR20 Teslameter with a magnetic field controller (FR020).A thermostat chamber can be installed in the air gap (Optionally available on 50mm and 70mm gap poles).
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Three-phase Fully Automatic Test System
TS41
Calmet Smart Calibration Devices
The Calmet TS41 test system consists of a three-phase reference meter of accuracy class 0.02% (or 0.04%) and an integrated three-phase current and voltage source up to 3x120A/600V. It makes possible automatic testing of electricity meters in meter test stations
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Isolated Analog Input Expansion Board
MSXB 084
The MSXB 084 Isolated Analog Input Expansion Board provides isolated analog inputs for DAP systems. Use these boards to eliminate ground currents – a potential source of noise in your measurement and control signals – and eliminate timing skew.
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Calibrator, 0 to 24 mA, Current, 185 mm, 78 mm, 38 mm, ± 0.5%, 265 g
72-6694
*Adjustable 0 to 24 mA current source*Current calibrator drives loads up to 500 Ω*Large LCD display*Sampling Time : Approximately 0.4 seconds*Over Input Indicator : 1*Operating Temperature : 0°C to 50°C ( 32°F to 122°F)*Size : 185 × 78 × 38 mm (7.3 × 3 × 1.5 inches)*Weight : 265 g (0.58 lb) including battery*Requires one 9 V battery - not included*12 month limited warranty *view Terms & Conditions for details
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MAGNESIUM ANODE SIMULATOR
CS-1
The CS-1 portable Magnesium Anode Simulator is an ideal DC current source that will allow the user to see what the addition of a magnesium anode on their system will do to Pipe to Soil measurements and other C.P. tests.
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Biosensor isoPod with USB
EPU352
A compact signal conditioner for monitoring low current, two-electrode (anode and cathode) amperometric sensors. By setting the polarization voltage to zero it can also be used as a zero resistance ammeter (ZRA).Electrical isolation ensures that readings are not influenced by nearby current sources such as conductivity, or voltammetric electrodes.
