Current Preamplifiers
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Product
Current Sources
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Innovar Current Sources are the standard in the circuit breaker industry. Our Current Sources supply regulated current from 1 amp to 100,000 amps with incredible accuracy, along with providing a full set of features that is unmatched by any other Current Source in the market.
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Product
Low Noise Differential Preamplifiers
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Provide a high gain amplification to 1MHz with an AC output derived from a very low noise FET instrumentation amplifier. Each model has fixed gain settings of x1 (0dB), x10 (20dB), x100 (40dB) and x1000 (60dB) over a selectable bandwidths of 100Hz, 1kHz (HP), 3kHz, 30kHz, 100kHz and 1MHz (7000 model only). Noise referred to input is 7nV√Hz and common mode rejection is >100dB at 1kHz. Momentary pushbutton switches are provided that control coupling, bandwidth, gain and channel on/off selections. BNC connectors are provided for single-ended and differential input, ac output, and dc output (optional) connections.
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Primary Current Injection
PCI-600
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The VIC Model PCI-600 is a programmable, high-current source that is designed specifically for utility-substation applications. This alternating current(ac) test device is used primarily for injection testing of protective relays. This same device can also be used for testing thermal, magnetic and solid-state motor-protection relays and molded-case circuit breakers.
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Product
RX Pre-Amplifier System
RAM-34
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The RAM-34 is a complete pre-amplifier system designed primarily for the low bands 160M thru 40M. It has inputs for four receive antennas and internal 3-pole bandpass filters for 160M, 80M and 40M. In addition to the pre-amplifier, it has a step attenuator that togetherwith the amplifier stage provides gains from -20 dB to +20 dB in 5 dB steps. This allows equalizing the signal levels between the antenna inputs. Gain settings are memorized for each antenna on each band. Different types of receive antennas have different signal levels and the gain memories eliminate the need to adjust the receiver or pre-amplifier when switching between the antennas.
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Product
Current Amplifier/Generator
ULCA-1
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The Ultrastable Low-noise Current Amplifier ULCA-1 is designed to fulfill the needs of high-accuracy low-current generation and measurements in the range from 1 fA to 1 µA (licensed by PTB).
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Product
BJT Voltage Preamplifier
SIM911
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Stanford Research Systems, Inc.
The SIM910 and SIM911 are low-noise, programmable preamplifiers which are ideal for a wide range of small signal applications. The primary differences between the two models are their input impedance and input noise.
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Product
Leakage Current Monitor
LCM500
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The Doble LCM500 Leakage Current Monitor can measure condition while a surge arrester is still in service, measuring the quality of the metal oxide blocks and helping manage the risk of failure.
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Product
Current Transformer
ST-9RCT
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Standard Electric Works Co., Ltd
● Primary Current Rating (Amp) : 800~2000
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Product
USB Preamplifier, 10 MHz to 4 GHz
U7227A
Amplifier
The U7227A, 10 MHz to 4 GHz USB preamplifier is designed to bring reliable gain and low noise figure to measurement systems improving the overall system performance and reduce systematic errors; a total solution to the X-Series signal analyzers to perform noise figure measurements.
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Product
Precision Current Transformers
7223CT-2S
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Guildline Instruments NEW 7223CT-2S Series of Precision AC Current Transformers provides very accurate AC current measurements at high current and for high voltages. The 7223CT-2S is part of the 7223CT Series which are Commercially Available High Precision, Low and High Voltage, AC Current Instruments Capable of Measurement Accuracy <5 part-per-million (ppm) – Accuracies No Other Manufacturer Provides!
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Current Clamps and Sensors
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Are designed for measuring leakage current diverted towards the earth. It enables the fault to be located or anticipated without disconnecting the equipment linked. It is specially designed to detect low fault currentson power circuits.
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Product
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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Product
Basic Current Clamps
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PeakTech Prüf- und Messtechnik GmbH
Are ideal for current measurement in electrical systems and control cabinets, since only single wires are guided through the clamp jaws for contact-free current measurement and no electrical connections have to be disconnected. This method also enables measurements of very high currents, which would overload any standard multimeter if connected directly.
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Product
Current Transformer Tester
HTCT-300
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Full-featured, can not only satisfy various CT (eg: protection, measurement and TP category) but also PT type electromagnetic unit for its excitation characteristics (ie voltage current characteristics), ratio, polarity, secondary winding resistance, secondary load, ratio deviation, angle deviation and other test requirements.
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Product
Current Sensors
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Achieve higher efficiency and power density with our industry-leading current sensor ICs. Perfect for vehicle electrification as well as green industrial, computer and consumer applications.
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Split-Core Current Transformers
CTS Series
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Continental Control Systems LLC
The CTS series CTs are available with windows from 0.75 inch up to 2.0 inch. They have a removable section, so that they can be installed without interrupting the circuit. 0.333 Vac output at rated current Accuracy ±1% from 10% to 100% of rated current Phase angle <2° degrees at 50% of rated current (valid for 70 A or higher) 8 ft. twisted-pair wire, 600 Vac rated UL recognized for voltages up to 600 Vac, CE mark, RoHS
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Product
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
Brute High Current Probe
P4301-1W
High Current Probe
Current Rating (Amps): 50Current Rating Remark: 40 Amps for BeCu plungersAverage Probe Resistance (mOhm): 5Test Center (mil): 300Test Center (mm): 7.62Full Travel (mil): 250Full Travel (mm): 6.35Recommended Travel (mil): 167Recommended Travel (mm): 4.24Mechanical Life (no of cyles): 1,000,000Overall Length (mil): 1,750Overall Length (mm): 44.45
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Product
Voltage And Current Calibrator
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Precision Mastech Enterprises Co.
A precision instrument designed to generate (source) and measure precise electrical signals.
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Product
C-Band Single Channel Pre-Amplifier EDFA (SPA)
HSA4300 (With SNMP)
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Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai HSA4300 series is a low noise pre-EDFA which designed specifically for single wavelength optic transmission system. It is installed in the front of optical receiver, used for improving the receiving sensitivity of the optical receiver, and extending the signal transmission distance.
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Product
USB Preamplifier, 2 to 50 GHz
U7227F
Amplifier
The U7227F, 2 to 50 GHz USB preamplifier is designed to bring reliable gain and low noise figure to measurement systems improving the overall system performance and reduce systematic errors; a total solution to the X-Series signal analyzers to perform noise figure measurement
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Product
Integrated Current Sensors
HMSR series
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The HMSR is a new generation of high insulated Integrated Current Sensor from LEM. These product family provides a robust, compact and very accurate solution for measuring DC and AC currents in all highly demanding, switching power applications for commercial, industrial. HMSR is a micro core based open loop sensor with a reinforced insulation and overcurrent detections (user configurable and factory set). These features make the device suitable for high voltage applications requiring high precision and strong immunity against external field. The primary conductor (pins 1 and 8) has very low electrical resistance and dedicated pads d
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Current Transformer Tester
CTT
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The CTT is designed to test the current transformer ratio, Phase shift, Polarity, Excitation, Saturation, Winding resistance and Insulation resistance using the voltage method in compliance with ANSI/IEEE C57.13.1 and IEC 60044-1 standards, where voltage is applied to the secondary X terminals of the current transformer.
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Current clamps
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Precision ammeters determine the intensity of an electric circuit without interrupting the current flow.
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Product
Impulse Current Generator
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Weshine Electric Manufacturing Co., Ltd
Impulse current generator is mainly used to test the ability of electrical equipment to withstand strong impulse current, widely used in lightning arresters and electrical and electronic equipment in operation conditions of oscillation wave immunity test, can also be used for other research tests.
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Product
Leakage Current Tester
TOS3200
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The Leakage Current Tester TOS3200 is designed to perform leakage current (touch current and protective conductor current) tests on general electrical equipment but not medical electrical equipment.It enables you to conduct tests that conform to the requirements of the applicable IEC, UL, JIS, and other standards, as well as the Electrical Appliance and Material Safety Law. The memory in the main unit stores the 51 types of test conditions laid down in the IEC/JIS standards for information technology equipment, household electrical appliances, audio, video electronic apparatus, luminaires, motor-operated electric tools, and electrical equipment for measurement and control and in the Electrical Appliance and Material Safety Law, thereby enabling you to conduct standard tests with simple panel operation.
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Product
Eddy Current Array
BRIO
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BRIO is an advanced, ultra-portable Eddy Current Array (ECA) instrument designed for in-service inspections in aerospace, oil & gas, power generation, and manufacturing industries.
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Product
Current Measurement in a Compact Design
ICD-Series
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Isabellenhütte Heusler GmbH & Co. KG
The ICD series is a compact system for current measurement. The ICD-A is suitable for an application in the automotive industry due to its connector, while the ICD-C is more suitable for the design industry. The shunt-based measurement provides for a high level of accuracy and temperature compensation is also incorporated through the internal signal processing. External temperature influences are thus reduced to a minimum.
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Product
Programmable DC Current Source
Model 121
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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.
