Voltage Drop
electrical energy given up flowing through a circuit.
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Product
Dual Mobile Communications DC Source
66309B
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.
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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
Mobile Comm DC Source w/ Battery Emulation, DVM
66321D
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 66321D 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 66321D 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. The 66321D dc source provides all of the capabilities of the 66321B with the addition of a built-in digital voltmeter.
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Product
Field Effect Rectifiers
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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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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
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
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.
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Product
Voltage Sag Generator
SKS-1120GTB
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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
Digital I/O Board, 32 Isolated I/O Channels, 24V +special EEPROM & TTL IO Port
APCI-1500-PULS
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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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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
Linear regulated power supply with thyristor pre-regulation
NTN
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High efficiency Short circuit proof and unlimited operation with full current in short circuit condition voltage and current regulation with automatic and sharp transition; control mode indicated by LEDs Voltage and current setting with 10-turn potentiometers with precision scale; the adjusting knob can be locked 4 digit DVM for voltage and current (for table-top models) Sense terminals for the compensation of voltage drop on the load lines. The nominal voltage always refers to the output terminals Parallel and series connection possible Suitable for inductive and capacitive loads for 700 W nominal power and higher, limitation of inrush current on switching on Interlock loop to monitor the external load and internal loop as a standard for three phase units Elapsed-hour meter as a standard for three phase units
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Product
Mobile Communications DC Source, 15V, 3A
66311B
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 66311B mobile communications DC source provides fast transient, exceptional sourcing, and precision measurement.
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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
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
LIV – High-power Laser Diode Testing
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An important aspect of the development and manufacture of laser diodes is the so-called laser diode characterization, or laser IV curve. By applying increasing current to the laser diode so it that emits light, the optical output is measured together with the voltage drop across the diode element. The resulting LIV curve reveals important clues about the quality of manufacture and the performance of the laser diode, enabling a pass/fail decision to be met.
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Product
Battery Backup Unit
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Advantech’s Battery Backup Unit provides up to 6 minutes of power to protect data and ensure system uptime during outages or voltage drops.
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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
Dual Mobile Comm DC Source w/ Battery Emulation
66319B
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 66319B dual output mobile communications dc source provides two outputs for testing both the main battery power and the battery charger circuitry, allowing customers to test phones and chargers with the same equipment. This feature helps save on rack space (2 outputs in a rack box) and eliminates the need for two separate power supplies.
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Product
Step Probes (F732SP) F73211B1074G150SP
1014867
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The Step Probes, model F732SP (F73211B1074G150SP), are engineered for precision applications in the electronic testing and assembly sector. With a pitch of 2.54 mm (100 mil), these probes operate effectively within a temperature range of -45°C to +100°C, making them suitable for high-performance environments. Their design emphasizes reliability, featuring a continuous current capacity of 5.00 A with a typical contact resistance of just 20 mOhm, ensuring minimal voltage drop and optimal signal integrity in demanding scenarios.
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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
6-24V Multi-functional Auto Tester With LED Display
6510
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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
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
Wide-range Programmable DC Power Supply
IT6900A Series
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IT6900A series wide range programmable power supply have built-in standard RS232, USB, GPIB, RS485 and analog interface (RS485 and analog interface are just for IT6900B), support SCPI protocol, facilitate remote control, industrial PLC control and the formation of intelligent test platform. Remote compensation terminals avoid the problem of inaccurate testing caused by voltage drop on the wire.Low ripple, low noise and built-in digital voltmeter make IT6900A easy to do external measurement.IT6900A can be widely applied in DC-DC power supply module, battery charging and sensors and other test areas.
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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
Battery Electrical System Analyser
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We invented the “Resistance method” which uses a series of shorting pulse to measure the voltage drop in order to calculate the plate’s internal resistance. Unlike other patented “Conductance method” which generates an AC pulse across the battery terminal to measure impedance.
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Product
Earth Contact Resistance Tester
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SCR ELEKTRONIKS have developed an equipment namely Earth Contact Resistance Tester to test the appliance. To ensure the safety of operator it is essential that the Earth path (connection) should offer minimum impedance to by pass short circuit Current to Earth. This is ensured by measuring Resistance of the Earth path by passing heavy Current say 25 A. The Earth Contact Resistance Tester essentially comprises of a Variable Current source with digital Ammeter to measure the Current supplied. The Voltage drop across the Earth path is measured with a digital Voltmeter. Optionally for a particular Current (25 A) the meter can be calibrated in terms of Resistance. A timer is provided to switch off the Current after the Set Time.
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Product
Contact Resistance Tester
JYL
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As a high current passes through a pair of mechanically independent metallic contacts, the contact resistance must be as low as possible. Increasing the contact resistance of the contact often causes a large voltage drop on the contact, which reduces the input power of the load equipment. If the contact resistance of one or two contacts becomes large, the three-phase voltage of the load equipment will be unbalanced, causing phase loss operation.
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Product
High Current Probes HCF76488B080G200
1175814
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The High Current Probe HCF76488B080G200 (item number 1175814) is designed for safe transmission of high electrical currents in test and contacting applications. HCF76488B080G200 focuses on current capacity and low transition losses, as required in battery testing, formation and other e-mobility applications. For HCF76488B080G200, contact resistance, contact force and thermal behavior must be considered together because they influence voltage drop and temperature rise at the contact point. The probe is rated for 25 A continuous current with a typical contact resistance of 4 mΩ. Spring force is 200 cN. Tip style 88 has a diameter of 2.3 mm.
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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
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.
