Voltage Drop
electrical energy given up flowing through a circuit.
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Product
Audio Multimeter
AMM-1
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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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Product
Thermocouple Thermometers
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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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Product
6-24V Multi-functional Auto Tester With LED Display
6510A
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Peaceful Thriving Enterprise Co Ltd
Test the automotive electrical system within 6-24V. 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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Product
Infrared Thermometer
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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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Product
100 Watt Dynamic Measurement DC Source, 20V, 5A
66332A
DC Power Supply
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 66332A Dynamic Measurement dc Source provides dynamic measurement and analysis of voltage and current waveforms. It is ideal for testing digital wireless communications products/components because it not only provides the power for testing, but also performs the peak current measurements required to characterize the pulsed current demands of these products.
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Product
MICRO OHM-METER
UONT100A
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International Biological Laboratories
This Test Set is capable to measure low resistance like switch contacts, breaker contacts, busbar splices, joints, fuses, low inductive windings etc. by circulating high value of D.C. through the contact/junction and measuring D.C voltage drop (4 terminal method) which, sent to instrument amplifiers , thereby being displayed on resistance meter.
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Product
Digital Multimeters
ST-3501
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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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Product
PoE Tester
PE-100
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The PoE Tester/Power Monitor is designed for testing standard PoE and measuring power of PoE systems, by performing both PSE (Power Source Equipment) detecting and PSE/PD (Powered device) inline testing. Compliant with IEEE802.3 af, 802.3at standard and 802.3bt ultra 4-pair up to 60W-100W. PSE detecting display PoE type (af or at), power source (Endspan or Midspan) and perform a load test for voltage drop with REV LED indicates a reversed power. Inline PSE/PD testing-measure and display in rotation between voltage (Volts), current(Amps) and power(Watts) via dual 4 digit 7 segment LEDs which provides voltage available, current flowing and how much power an PD actually need ensure sufficient power for PD to make the PoE is sustainable.
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Product
Voltage Sag Generator
SKS-1120GTA
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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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Product
Mobile Comm DC Source w/ Battery Emulation
66321B
Battery Simulator
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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Product
Fully Automatic Transformer Winding Resistance Tester
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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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Product
Current Measurement Board
MS 1814
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*Maximum DC Voltage Rating: 15V to 75V*Maximum DC Current: 5A*Output Voltage per 1A: 1V*Maximum AC Current: 5A*Operating Temperature: 0°C to 55°C*Storage Temperature: -20°C to +65°C*90% Relative Humidity (Non-condensing)*No. of DC Current Channels: 9*No. of AC Current Channels: 4nos*Maximum AC Voltage Rating: 230VAC*Channel Selection: Through 16 CH Analog MUX*Measurement Error Over Full Temperature Range: 5%*Type of Output: Proportional voltages*Maximum Voltage Drop across Series Resistor Full Scale Measurement: 0.05VDC
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Product
RTD Thermometers
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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. 255g including batteries.
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Product
Soil Moisture Sensor
Modbus RS485
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This is a contact-less capacitive soil moisture sensor, a continuation of my I2C soil moisture sensor. This particular version of the sensor is suited for more professional installations where long cable runs is a requirement. It adds a local voltage regulator to mitigate the voltage drop and RS485 transceiver to accommodate long wires, also reverse polarity and an additional ESD protection level is added.
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Product
PCIe Digital I/O Board, 32 Optically Isolated I/O Channels, 24V
APCIE-1532
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16 digital inputs, 24 V, isolated16 interruptible inputs16 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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Product
Electric Testing
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Our Capabilities*Dielectric Withstand*Hi-Potential Testing*Voltage Drop*Contact Resistance*Gate Leakage*Insulation Integrity*Dielectric Integrity
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Product
LED Tester
Iskra ST5-L
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*Convenient one-hand operation*Ideal for Surface Mount Devices*Automatic LED polarity detection and display*Forward drop voltage display*Dedicated mode for testing bi-directional LEDs*Manual polarity preset modes*Adjustable constant test current 1-30mA*Adjustable test duty cycle 10-1000 mSec*LED visual brightness verification*LED visual color verification*OLED Display*Integrated Li-Ion battery
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Product
PCIe Digital I/O Board, 16 Optically Isolated I/O Channels, 24V
APCIE-1516
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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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Product
DC Filter Inductors
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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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Product
Scanning Vibrating Electrode Technique
VS-SVET
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The Scanning Vibrating Electrode Technique uses a single wire to measures voltage drop in solution. This voltage drop is a result of local current at the surface of a sample. Measuring this voltage in solution images the current at the sample surface. Current can be naturally occurring from a corrosion or biological process, or the current can be externally controlled using a galvanostat.
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Product
12-24V Multi-functional Auto Tester With LCD Display
6511A
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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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Product
PCIe Digital I/O Board, 64 Optically Isolated I/O Channels, 24V
APCIE-1564
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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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Product
Digital LOOP/PSC/LOAD Tester
1825 LP
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Standard Electric Works Co., Ltd
● Microprocessor-controlled.● Measures the voltage drop as if 16A was flowing between Line and Neutral.● Displays voltage without current (V at 0A).● Display voltage as if 16A flowing between Line and Neutral (V at 16A).● Loop test for L-E● PSC between L-N.● Single one smart push button operation; ON, Scroll through results and menus.● Checks wiring integrity (LEDs).● Auto off/auto ranging (software range).● Combined prospective short circuit current, loop and load tester.● Display can be customized for large orders.
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Product
Bench Power Supply, Single, Adjustable, Fixed, 1 Output, 13.3 V, 14.5 V, 15 A
72-8110
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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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Product
SparkFun Current Sensor Breakout
INA169
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The INA169 is a “high-side current monitor,” which means that you place a resistor (a “shunt resistor”) on the positive power rail and the INA169 measures the voltage drop across that resistor. The INA169 outputs a small current based on the measured voltage drop. If you place a resistor from the output of the INA169 to ground, you can measure the voltage at the output.
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Product
Digital Multimeters
ST-3201
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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 : 0ºC ~ 50ºC, 70% R. H.● Storage Temperature : -20ºC ~ 60ºC, 80% R. H.● Accuracy : Accuracy specifications at 23 ± 5ºC, less than 75% R. H.● Power : Single, 006P 9 volt battery● Dimensions : 128(L) × 72(W) × 33(D) mm.● Weight : Approx. 183g
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Product
Electrical Safety Test Equipment
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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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Product
12-24V Multi-functional Auto Tester With LCD Display
6511
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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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Product
SiC Diodes
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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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Product
Air Core Electric Arc Furnace Reactors
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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.
