Circuit
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Product
Four outputs FTTB CATV optical receiver
B9428
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Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai B9428 product series, 47~862MHz operate bandwidth, output level Vo=88dBμV ( Pin=-2dBm ), suitable for FTTP optical fiber access network, which is a low power consumption, high performance, and excellent cost performance RFTV broadcast network ONU(Optical network unit). This series of product adopts high sensitivity receiving tube and Huatai special low noise matching circuit Under 3.8% modulation, when transmitting in full channels and with receiving power of -10dBm, the CNR can still reach high index of 45dB. Therefore, if adopting B9428, it is only need very low optical power to reach 45dB CNR required by the user.
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Product
Micro-Ohmmeters
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Contact resistance measurement is one of the most important and common tests during switchgear manufacturing, commissioning and maintenance stages. Besides switchgear testing, the RMO digital micro-ohmmeters are designed for simple, safe and efficient testing of:disconnecting switches,high-current bus bar joints,cable splices,welding joints,and different high-current links in factory and high-induction field environments.All DV Power RMO micro-ohmmeters use Kelvin’s 4-point measurement principle which is the most convenient for very small resistance measurements. The measurements are accurate and in accordance with international standards for AC high-voltage circuit breakers testing (IEEE C37.09 and IEC 62271-100).Starting from 2003, DV Power has been a trend-setter on the market when our first 500 A micro-ohmmeter weighing only 8 kg (RMO500A / CPM500) was released.Currently, DV Power products portfolio includes 16 models, divided into 3 series:13 portable models: RMO-A (6) and RMO-G (7) series.6 handheld models: RMO-H (6) seriesThe instruments generate a user-selectable and ripple-free test current up to 800 A in an automatically regulated test ramp. Test current ramping significantly decreases the influence of the magnetic transients to measurement.
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Product
Test System for High Volume Production Testing of Integrated Circuits
ETS-364
Test System
The ETS-364 is a general-purpose precision analog and mixed-signal test platform designed for high volume production testing of integrated circuits; optimized for high throughput applications with a fully integrated multisite software and hardware architecture.
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Product
IPM Drive
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IPM drive photocouplers (optocouplers) are optically coupled isolators containing a GaAlAs LED on the input side and a photo diode and signal processing circuit on the output side in a single chip. This coupler is a high common mode transient immunity (CMR), high CTR type whose pulse width changes according to the operating temperature, making it ideal for driving IPMs (intelligent power modules).
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Product
IP X3, X4 - Rain Test Chamber
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The rain water or moisture penetrating through a leak in the case, can often reach into the circuit board and lead to failure of the equipment. This problem is frequently encountered with external equipments and devices during storage, usage or transportation in a rainy weather. Therefore, the automotive industries and various research and developmental units often use Rain Test Chambers to test the quality and performance of the product in such extreme environments.
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Product
Industrial Electronics Testing for Smart Devices & More
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As more and more devices are being designed with inherent intelligence and the ability to connect and communicate, the amount and complexity of electronic content is continuously increasing for our industrial customers. They need the ability to quickly and efficiently verify proper operation of these products as they flow off the production line. Circuit Check responds to these needs by offering a wide range of industrial electronics testing solutions from consulting to complete test system and software design. We also offer adaptable support solutions to ensure proper equipment operation throughout its life cycle.
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Product
Insulation & Multifunction Tester (LCD Display)
4167 MF
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Standard Electric Works Co., Ltd
● High Quality Taut Band movement.● Capable of measuring earth resistance and earth voltage.● 2mA measuring current permits the testing of earth resistance without tripping earth leakage current breakers in the circuit under test.● Test test leads are supplied as standard accessories for simplified two-wire measuring system.● Two insulation test voltages(DC) : 250V and 500V.● Alternation voltage measurement.● Battery life indicator.● Fuse protected.
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Product
Digital Power Meter
Power Meter
Digital Power Meter is designed for single-phase measurements of AC power signals and related parameters common to most electronic products. Instead of traditional analog measurement circuits, the 66200 uses state-of-the-art DSP digitizing technology.
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Product
Boundry Scan Testers
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Qmax Test Technologies Pvt. Ltd.
Boundary Scan Trainer Kit was developed by Qmax to provide user a good understanding and hands on the testing principals of boundary scan namely the scan chain test, interconnect test, non-BS functional testing of logic IC and cluster like a combinational or sequential circuits.
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Product
Contact Resistance Meter
CRM 200B
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CRM 200B directly measures micro-ohm values at 100 Amps DC under live switchyard conditions.CRM 200B is specially designed to reliably measure contact resistance of circuit breakers, isolators, busbar joints, welded joints etc., under the hostile electrostatic noise found in live EHV switchyards upto 765 kV.
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Product
Lithium Battery Test Chambers
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Dongguan Amade Instruments Technology Co., Ltd
Lithium battery test chambers are used to simulate various extreme conditions such as crush, impact, penetration, overcharge etc the lithium ion cells and batteries are subjected to during use, transportation, storage and disposal to determine the safety performances, tests including altitude simulation test, thermal test, vibration test, shock test, external short circuit test, impact/crush test, overcharge test, discharge test etc based on UN38.3, IEC62133, UL1642 standards. Applicable to communication products, computer products, consumer electronics, automobile power supplies and so on.
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Product
Versatile RF Network Analyzers for LF and MF
TE3000-series
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The TE3000-series of RF vector network analyzers have full vector measurement capability, and accurately resolves the resistive, capacitive and inductive components of a load. The user can display the vector impedance plus a range of related parameters including SWR, reflection coefficient, return loss and R-L-C equivalent circuit.
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Product
Medical Leakage Current Tester
2675Y
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Shenzhen Chuangxin Instruments Co., Ltd.
The 2675Y Medical Leakage Current Tester Series Is The Test Equipment Used For Measuring Continuous Leakage Current And Patient Auxiliary Current Of Medical Electrical Equipment.It Designs And Products According To The GB9706.1_2020 (IEC60601-1:2012) .And The Test Circuit (MD)Input Impedance To Simulate The Body Impedance,It Accord With The Requirements Of GB9706.1-2020 (IEC60601-1:2012),The Test Current Can Run Up To 5A,And Provide Users With An Isolation Power Supply Which Adjustable Output Voltage For 0~250V Continuously Of The Basic Capacity Configuration For The 500VA And Provide Another 110% Voltage Source Of The Maximum Rated Voltage.It Can Satisfy The I,II, Various Types Of Equipment Test The Earth Leakage Current,Shell Leakage Current,Patient Leakage Current,Patient Auxiliary Leakage Current Under Normal Condition And The Single Fault.
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Product
Transformer Winding Resistance Meter
XWRM-10
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The Motwane Manufacturing Company
The Motwane make XWRM-10 is a dual channel 10A rated, Transformer Winding Resistance Meter designed and developed aftere xtensive research on challenges and requirements of testing of various Transformer winding resistance. The instrument has One Current channel and two Resistance Channels. The instrument provides a large open circuit voltage of 42Volts, for fast charging of the highly inductive windings of transformers, to provide stable resistance values in minimum time. The XWRM-10 is intended to replace complex bridge set up with a single compact instrumentThe XWRM-10 is based on 4-wire measurement methodto measure low resistance accurately. The instrument iswell protected against inductive kickbacks offered by theinductive windings and gives stable reading on varioustypes of transformers.
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Product
Vector Network Analyzers
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The VIA Bravo is a handheld Vector Impedance Analyzer for measuring the impedance and resonant frequencies of circuits and antennas. The VIA Bravo has the capability of providing accurate measurements and sweep displays of impedance, reactance, resistance, phase angle, return loss and SWR. The VIA Bravo’s testing functionality, combined with its 100 kHz to 200 MHz frequency range, make it a versatile tool for many service applications including areas such as MRI, wireless telemetry, 2-way radio, aviation, and Radio Frequency Identification (RFID).
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Product
Configurable CAN FD Modules With A Focus On Digital I/Os
PCAN MicroMod FD Digital 1&2
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The PCAN-MicroMod FD breadboard can be purchased together with ready-to-use motherboards that provide peripherals for specific requirements. Spring clamp connectors are used to connect CAN, I/O and supply. The main boards PCAN-MicroMod FD Digital 1 and 2 focus on digital inputs and outputs, which are provided with the appropriate protective circuit. The digital outputs of Digital 1 are equipped with low-side switches and those of Digital 2 with high-side switches.
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Product
- RS-422 and RS-485 Lightning/Surge Protector
Model 22NX
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FEATURES: Triple Stage Protection; Fast Response Time For RS-422 / RS-485; Prevents Damage to Modems, Converters, and Terminals; Accommodates Data Rates to 10 MBPS; Supports 4 Circuits. The Model 22NX Lightning Sponge is designed to accommodate high-voltage transients, slow them down and redirect them to a low impedance path to earth ground.
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Product
Cable Fault Locators
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Cable Fault Locator is a device used for short circuit faults, cable cuts, resistive faults, intermittent faults, and sheath faults. Fiberinthebox supply cable fault locator for power cable, optical fiberal cable, etc. Fault Location in Power Cable is designed to locate cable faults, pinpointing the fault location, route tracing, cable identification, voltage withstand test and cable information management. It can locate all kinds of cable faults for all voltage level cables, including open circuit, short circuit, low insulation, high insulation and flashover faults, etc. Most power cables were buried underground, invisible, and out of reach, with modern new power cable fault locater, it can find the fault point quickly, solve problems immediately and restore power supply.
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Product
30 AMP Fuse Buddy Testers
FB305M
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Can test circuit current up to 30 Amps - an easy way to check fuel pump amperage. Clever design allows for easy connection into fuse sockets. Fuse Buddy ends are molded into the shape of the fuse itself. During testing the fuse is removed and replaced into the Fuse Buddy. This way, the circuit being tested maintains fuse protection. Fuse Buddy stays put & won't fall out of the socket, like test probes do.
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Product
SF6 Leak Detector
KVWG-II
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KV Hipot Power Test Equipment Co.,Ltd
SF6 Leak Detector can quickly and accurately quantitatively detect the leak points of SF6 circuit breakers, GIS and annual leak rate.
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Product
Bridge Trainer
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Salicon Bridge Trainer to measure unknown Resistance/Capacitance by balancing two legs of a Bridge Circuit. With the of DC Source, Student can set the null point by using different combinations of variable Resistors Circuit Diagram is provided on-board for Teaching/Training.
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Product
Hall Effect DC Current Sensor
CYHCT-WS3
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ChenYang Technologies GmbH & Co. KG
The sensor CYHCT-WS3 is a Hall Effect sensor for the measurement of DC current. The sensor has agalvanic isolation between the high power primary conductor and the secondary electronic circuit and withdifferent output signals and different power supplies.
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Product
PXI Breadboard Module, 2-Slot, 9-Pin D-Type
40-220A-702
Signal Module
The 40-220A series of breadboard modules allow the user to construct their own circuit in situations where a suitable PXI module is not available. For example when it is required to integrate a non-switching function into a PXI chassis. Typical applications include: Creating custom circuitry that can be housed in on a 3U board, or to build special one-off switching modules.
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Product
Safety Critical Miniature Relays
CU-V Series
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The CU-V is a so called safety relay which is used in places where a safe separation between coil and contact circuit is required. The relay is, with the corresponding screw socket V12, according to CEE 15/2e edition, approved by KEMA, for application in gas fired installations.
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Product
Main Effects
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The Analog Multi FX is an Authentic Analog Multi Effects Pedal equipped with everything you need to get the job done on stage and in the studio. It’s got a Switchless Optical Wah, Distortion, Effects Loop, Stereo Chorus, and Echo. Even better these are reissues of classic Morley circuits leading all the back to the 1970’s. And speaking of the 70’s it also has a new finish that pays homage to the original chrome Morley pedals. It’s Heavy-Duty spun stainless steel that’s Built like a Tank and looks great under stage lights. Each one is hand spun at our Illinois facility.
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Product
Sample And Hold Converters
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A critical part of most data acquisition systems, Renesas offers several sample and hold amplifiers for general purpose and military and defense applications that include precision data acquisition systems, synchronous sampling, wide bandwidth analog-to-digital (A/D) conversion, auto-zero circuits, digital-to-analog (D/A) converter deglitching, peak detection, and high-speed DC restore.
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Product
SparkFun Line Sensor Breakout
QRE1113 (Digital)
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This version of the QRE1113 breakout board features a digital output, using a capacitor discharge circuit to measure the amount of reflection. This tiny board is perfect for line sensing when only digital I/O is available, and can be used in both 3.3V and 5V systems.
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Product
SIMRC - 16-Channel 1-Pole MUX, Screened Reed
1020-R-16-1RF-5/1D
Reed Relay
Our small format embedded switching (SIM relay) cards offer a choice of switching configurations using low cost industry standard SIM connectors. They free the designer from the detail of routing complex switching circuits, you may select from a wide range of cards using the built in RS-232 and I2C interfaces. These low-cost embedded switching cards are intended to be mounted on to a simple motherboard. They may be used to construct very high density switching networks. SIM based switching cards also allow for very simple in-field maintenance.
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Product
Standard & High Speed Amplifiers
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Advanced Energy's Trek high voltage power amplifiers employ unique and proprietary circuitry. Benefit from closed-loop amplifier systems that feature exceptional DC stability and excellent wideband performance characteristics. And thanks to all-solid-state designs, our amplifiers are protected from output short circuits and overvoltages.
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Product
6 Contacts- Circuit Breaker Analyzer
CB14
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The CB14 is a 6 contacts circuit breaker analyzer designed to perform Timing, Motion as well as Static & Dynamic Resistance Measurement (DRM) in a single test. It also includes 3 multifunction analog inputs.





























