Voltage Drop
electrical energy given up flowing through a circuit.
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Fully Automatic Transformer Winding Resistance Tester
Measure DC resistance of transformers windings etc. Introduction: The NMC ''TDR'' is a high precision, new generation, light weight large output current and micro-processor controlled tester. This replaces old DC wheat stone bridge and double arm bridge for measurement of DC resistance. ''TDR'' adopts new advanced test current power supply technology, four terminal measurement, digital display of resistance value and test current. ''TDR'' is powered by 220V AC mains single phase supply. The measurements are accurate as the test current is highly stable. High automation is achieved with automatic discharge warning.Principle: The constant current generated is fed to the resistance under test through the current terminals and the voltage drop across the resistance under test is measured and displayed in ohms. A true four terminal measurement is used to eliminate the need for lead resistance compensation.
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PCIe Digital I/O Board, 64 Optically Isolated I/O Channels, 24V
APCIE-1564
32 digital inputs, 24 V, isolated16 interruptible inputs32 digital outputs, 24 V, isolated, 10 to 36 V, 500 mA/channelOptical isolation 1000 VWatchdog for resetting the outputs to "0" (when Power-On)Protection against fast transients, overvoltage, electrostatic discharge and high-frequency EMIInputs: voltage reversal, input filtersOutputs protected against short circuitOvertemperature and overvoltage protectionDiagnostic report in case of short circuits, overtemperature, voltage drop ...24 V power outputs with protection diodesShutdown logic when the external supply voltage drops below 5 V
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Mobile Comm DC Source w/ Battery Emulation
66321B
The Keysight Mobile Communications DC Source 663xx series offers several features ideal for testing wireless and battery powered devices. Excellent voltage transient response ensures maximum test-system throughput by minimizing device shutdowns due to significant voltage drops in the test wiring. Built-in advanced measurement system to accurately measure battery current drains when the device operates in different modes and a Keysight-developed feature that enables cellular telephone manufacturers to detect permanently and intermittently open-sense wire connections.The Keysight 66321B mobile communications dc source provides fast transient response, exceptional sourcing, output resistance programming, and precision measurement. This product is specially designed for testing next generation digital wireless communications products. The 66321B mobile communications dc source offers a new capability that simulates the internal resistance of a battery or battery pack. Additionally, these high performance models offer improved transient response and stable output operation with either short or long load leads.
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Digital Test Light With Load Tester
28800
Works as a regular test light and when you push the button on the tool it applies an 800mA load at 12V DC to easily check for voltage drop on circuits. The display will indicate the voltage drop when the button is pushed. Displays voltage under load to tell if circuit has problems like corrosion, resistance, or faulty connections. 48" cord with heavy-duty alligator clamp for secure connections. Not computer safe with load applied. Not for use on airbags.
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Audio Line Drivers and Receivers
Analog Devices audio line driver and receiver solutions feature differential-output buffer amplifiers and differential input buffer amplifiers to support a wide range of applications. By using low noise thermally matched thin film resistors and high slew rate amplifiers, these parts maintain the sonic quality of audio systems by eliminating power line hum, RF interference, voltage drops, and other externally generated noise commonly encountered with long audio cable runs. Applications involving this product portfolio include ADC drivers, high performance audio, sine/cosine encoders, and other professional and consumer uses.
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SiC Diodes
ST’s silicon carbide diodes range from 600 to 1200 V – as single and dual diodes – and feature unbeatable reverse recovery characteristics and improved VF. Available in a wide variety of packages, from D²PAK to TO-247 and the insulated TO-220AB/AC, they offer great flexibility to designers looking for efficiency, robustness and fast time-to-market. ST’s SiC Schottky diodes show a significant power-loss reduction and are commonly used in hard-switching applications such as high-end-server and telecom power supplies, while also intended for solar inverters, motor drives and uninterruptible power supplies (UPS). ST’s automotive-grade 650 and 1200 V SiC diodes – AEC-Q101-qualified and PPAP capable – feature the lowest forward voltage drop (VF) on the market, for optimal efficiency in electric vehicle (EV) applications.
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Audio Multimeter
AMM-1
The purpose of this tool is to enable the user to: Measure True Amplifier Power output into any load reactive or resistive Measure Common DC voltages Measure DC voltage drops during quick transients on cable runs or battery / charging systems Measure Impedance of speakers at any power or frequency from 20Hz - 1kHz (box rise) Measure Phase Difference between Voltage and Current into reactive loads (Power Factor) Find Tuning Frequency of subwoofer enclosures Tune subwoofer enclosures for maximum power transfer Measure AC Volts (amplifier output) Measure AC Amps (amplifier output)
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16-Channel VME Current Source & Analog Measurement Module
V460
The V460 is a VME-based versatile source/measurement unit. It includes a programmable constant-current source, a precision programmable gain 16-bit analog-to-digital converter, and a 4-wire, 16-channel analog multiplexer. An internal microprocessor supervises channel scanning according to user loaded parameters, reporting sensor voltage drops or, for selected sensor types, engineering-unit data.
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Electric Testing
Our Capabilities*Dielectric Withstand*Hi-Potential Testing*Voltage Drop*Contact Resistance*Gate Leakage*Insulation Integrity*Dielectric Integrity
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DC Filter Inductors
Osborne DC filter inductors (aka filter chokes) are commonly used in AC to DC conversion circuits to present an inductive voltage drop to the AC component of rectified current. This inductive voltage drop acts as a filter. Osborne designs filter inductors to components to function effectively (without saturation) in the presence of the DC current. Osborne will work with you to mitigate the impact of ripple frequency in conversion circuits. Every Osborne DC filter choke is designed for high performance with special consideration given to your circuit´s power supply frequency and conversion configuration.
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Motorcycle Battery Testers
ELAK Motor-Cycle Battery Testers are designed for testing batteries used in motor-cycles, scooters, ATV''s, etc. These testers check the voltage drop of the battery under a fixed load and confirm the status of the battery full, weak or dead. The new generation motor-cycle and scooters are fitted with an electrical start. It is therefore very essential to test these batteries under load, to ensure that the batteries are capable of starting the vehicle.
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Digital I/O Board, 32 Isolated I/O Channels, 24 V.
APCI-1500
PCI interface to the 32-bit data busConnector compatible to PA 1500Connector and software compatible to CPCI-150016 isolated input channels, 24 V, including 14 interruptible3 software-programmable counters/ timers16 isolated output channels, 10 to 36 V, output current 500 mATimer-programmable watchdog for the reset of the outputs to ??Diagnostic report through status register in case of short-circuit, overtemperature, voltage drop or watchdogInterrupt triggered through watchdog, timer, errorOne ground line for all inputs and one ground line for all outputs
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Field Effect Rectifiers
ST field-effect rectifier diodes (FERD) help improve designs with new versions focusing on trade-off upgrades. Field-effect rectifier diodes belong to our STPOWER family. The design of the FERDs has allowed both a decrease in the voltage drop and a decrease in the leakage current temperature coefficient. As a result, the runaway safety margin is improved and maybe beyond the typical safety margin of Schottky barrier diodes.
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Capacitive H.V. Detectors (Contact)
213 HVD~226 HVD
Standard Electric Works Co., Ltd
● Excellent shock resistance.● Rugged nylon moulding.● Auto on (when voltage detected).● Excellent drop resistance.● Good vibration resistance.● Loud sound alarm indication.● Built-in proving and self-test circuit.● High bright color-coded LEDS.● Works from standard 9V battery.● Interchangeable contact electrode.● Use in all whether conditions.● Compatible with all link sticks.● Lightweight, robust & compact.● Models available from 11kV to 132kV.● Suitable for indoor and outdoor use.● Self(auto on) or manual arming.● Easy access to batteries.● Customized threshold on demand.● Auto off (if no voltage detected).● Waterproof design, protection class : IP65.
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LOADpro Dynamic Test Leads
180
*LOADpro Test Leads load the circuit to see if current can flow. *By loading the circuit, LOADpro makes a voltage drop test “on the fly”. *Just press the switch – the test results can not lie. *Use LOADpro w/your DMM and follow our test method - you will find wiring faults quicker. *LOADpro Test Leads feature SteadyPin Probe Tips, which allows the probe to sit firmly on a male ECM or connector pin. *LOADpro are OEM approved – finds corroded circuits fast!
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Infrared Thermometer
Display: 3 1/2 digit liquid crystal display (LCD) with amaximum reading of 1999.Polarity: Automatic, positive implied, negative polarityindication.Low battery indication: the " " is displayed when thebattery voltage drops below the operating level.Operating environment: 0°C to 50°C at<75% relativehumidity.Storage temperature: -20°C to 60°C, 0 to 80% R.H.withbattery removed from meter.Accuracy: Stated accuracy at 23°C±5°C, <75% relativehumidity.Auto power off : 10 secondsDimensions: 148mm(H) x 105mm(W) x 42mm(D).
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12-24V Multi-functional Auto Tester With LCD Display
6511
Peaceful Thriving Enterprise Co Ltd
Test the automotive electrical system within 12-24V. In order to save the testing hours for the automotive electrical system, the tester is designed to test the system without re-connection between the vehicle battery and the testing components. For the testing and safety purpose, the tester contains short-circuit protection, which can also check the ground connection without voltage drop test. The short-circuit protection system contains the recoverable fuse, so the technician will not waste the fuses during the testing. The extension cable is long enough for a technician to test the whole system for the vehicle. Therefore, the technicians do not have to search for ground connection constantly.
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Air Core Electric Arc Furnace Reactors
Arc Furnace Reactors are serially connected reactors that are installed in the supply systems of arc furnace transformers to stabilize arc and limit the unstable arc furnace current and voltage drop which optimize their melting process. These buffer reactors are connected in series to the primary side of the furnace transformer. Typically these reactors are tapped coils and manufactured as per customer'stap requirements.
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Voltage Sag Generator
SKS-1120GTA
Shanghai Sanki Electronic Industries Co., Ltd.
The cycle drop simulator is used to reproduce the voltage fluctuation phenomenon of commercial power supplies. Simulate the grid voltage drop and short-term interruption caused by the accident or the sudden change of the large load in the low-voltage power grid, or the grid voltage change caused by the continuous change of the load. Used to evaluate the performance of the equipment under these voltage changes.
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Digital I/O Board, 32 Isolated I/O Channels, 24V +special EEPROM & TTL IO Port
APCI-1500-PULS
PCI interface to the 32-bit data bus Connector compatible to PA 1500 Connector and software compatible to CPCI-1500 16 isolated input channels, 24 V, including 14 interruptible 3 software-programmable counters/ timers 16 isolated output channels, 10 to 36 V, output current 500 mA Timer-programmable watchdog for the reset of the outputs"-PULS" version has a special EEPROM and a TTL IO port added at end of cardDiagnostic report through status register in case of short-circuit, overtemperature, voltage drop or watchdog Interrupt triggered through watchdog, timer, error One ground line for all inputs and one ground line for all outputs
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Thermocouple Thermometers
Polarity: Automatic, positive implied, negative polarityindication.Low battery indication: The “ ” is displayed when thebattery voltage drops below the operating level.Measurement rate: 1 times/second.Operating environment: 0°C to 50°C at<70% R.H.Storage temperature: -20°C to 60°C, 0 to 80% R.H. withbattery removed from meter.Accuracy: Stated accuracy at 23°C±5°C, <75% R.H.Battery: 1.5Vx4pcs AAA size.Dimensions: 160mm(H) x 83mm(W) x 38mm(D).Weight: approx. 270g including batteries.
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SureTest® Circuit Analyzer
61-164
*Measures voltage drop under load**Hot and neutral conductor impedances*Estimates Load on Line (ELL) up to 15A*Tests GFCIs and EPDs for proper operation*Super-bright OLED display*High accuracies*True RMS*Line and peak voltage*Identifies proper wiring in 3-wire receptacles*Identifies false (bootleg) grounds*Tests without disturbing sensitive loads*Verifies isolated grounds (with 61-176 adapter)*2-year warranty*12A, 15A, 20A load tests
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Digital Multimeters
ST-3501
Standard Electric Works Co., Ltd
● Display: 3½ digit liquid crystal display (LCD) with max. reading of 1999.● Polarity: Automatic, (-) negative polarity indication.● Zero Adjustment: Automatic.● Over Range Indication: Highest digit of (1) or (-1) is displayed.● Low Battery Indication: The (BAT) is displayed when the battery voltage drops below the operating voltage.● Measurement Rate: 3 measurements per second, nominal.● Operating Temperature: 0°C to ±50°C, 0-70% RH.● Storage Temperature: -20°C to +60°C, 0-80% RH, with battery removed.● Accuracy: Accuracy specifications at 23±5°C, less than 75% RH.● Power: Single, 006P 9 volt battery● Dimensions: 128(L)×72(W)×33(D)mm.● Weight: Approx .200g
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Electrical Safety Test Equipment
Making a product “safe” requires an understanding of “hazards” that exist in each electrical product. Electrical shock is one of the four fundamental hazards. Because of that, it must be a part of any product electrical safety evaluation. Even though a product requires an electrical power source and uses electrical or electronic components, it should not present an electrical shock hazard to the user.Ground bond or earth continuity testing prevents electrical shock hazards. Similarly to a fault to earth, test instruments generate a high current. The standard requires that the resistance between protective earth and any conductive surface on the equipment does not exceed 0,1 Ohm. The test is performed by applying a DC current between the conductive surface and protective earth. By measuring the voltage drop, it calculates the resistance.RMO-E instruments are ideal for testing the protective bonding (grounding) of equipment following the standard IEC 61010-1. Applying current up to the value of 100 A and the ability to provide in the Contin menu (continuous operation) test current for the pre-set test duration (equal or exceeding 1 min) gives a user a possibility to easily check the protective bonding/grounding of the equipment. The full load voltage of 12 V assures proper measurement and accurate result. Finally, an instrument displays pass/fail classification according to user-preset parameters.
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Bench Power Supply, Single, Adjustable, Fixed, 1 Output, 13.3 V, 14.5 V, 15 A
72-8110
The 72-8110 is a compact switch mode Power Supply features a very compact footprint that makes it an ideal match for portable communications equipment. Its 50% duty cycle surge rating is comes in handy in demanding transmitting situations. It is also perfect for two-way radio (including HF) and audio equipment including auto sound and multimedia systems. This fixed voltage switch mode power supply is designed with high RFI stability and is especially suitable for two-way radio and communications equipment. Constant current circuitry is used for overload, short-circuit and over-temperature protection. Output current and voltage drop to a safe level when any fault occurs. This power supply also has over voltage protection to prevent connected equipment from damage.
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Dual Mobile Communications DC Source
66309B
The Keysight Mobile Communications DC Source 663xx series offers several features ideal for testing wireless and battery powered devices. Excellent voltage transient response ensures maximum test-system throughput by minimizing device shutdowns due to significant voltage drops in the test wiring. Built-in advanced measurement system to accurately measure battery current drains when the device operates in different modes and a Keysight-developed feature that enables cellular telephone manufacturers to detect permanently and intermittently open-sense wire connections.
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PCIe Digital I/O Board, 16 Optically Isolated I/O Channels, 24V
APCIE-1516
8 digital inputs, 24 V, isolated15 interruptible inputs8 digital outputs, 24 V, isolated, 10 to 36 V, 500 mA/channelOptical isolation 1000 VWatchdog for resetting the outputs to "0" (when Power-On)Protection against fast transients, overvoltage, electrostatic discharge and high-frequency EMIInputs: voltage reversal, input filtersOutputs protected against short circuitOvertemperature and overvoltage protectionDiagnostic report in case of short circuits, overtemperature, voltage drop ...24 V power outputs with protection diodesShutdown logic when the external supply voltage drops below 5 V
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Power Quality Meter
Nexus 1450
The Nexus 1450 is a powerful state-of-the-art power meter that provides high-precision electrical energy measurements and records waveforms. This equipment allows you to measure power quality and determine the reliability of electrical power. The Nexus 1450 meter allows you to see the reliability of the power circuit to determine the causes of failures, surges and voltage drops, and harmonics.
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Communication and Control Cable
Teledyne Marine Cable Solutions
TCS provides large gauge for long runs and low voltage drop, with a high strand count for continuous flex. Low capacity, low-skew, shielded and ROHS compliant.
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Digital I/O Board, 32 Isolated I/O Channels, 24V, LACQUERED
APCI-1500-LAC
PCI interface to the 32-bit data busConnector compatible to PA 1500Connector and software compatible to CPCI-150016 isolated input channels, 24 V, including 14 interruptible3 software-programmable counters/ timers16 isolated output channels, 10 to 36 V, output current 500 mATimer-programmable watchdog for the reset of the outputs to ??Diagnostic report through status register in case of short-circuit, overtemperature, voltage drop or watchdogInterrupt triggered through watchdog, timer, errorOne ground line for all inputs and one ground line for all outputs
