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Voltage Drop
electrical energy given up flowing through a circuit.
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Cycle Voltage Drop (Rise) Simulator
STT-CSS-20P1
Beijing KeHuan Century EMC Technology Co,.LTD
*Using 2 The regulator, and the rated voltage adjustable automatic voltage regulator, power fluctuations avoid adversely affecting the test results. Simulate the test under 110V power supply. It can simulate the fluctuation of the power grid under extreme conditions (such as high or low power supply voltage in remote areas).
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Current Measurement Board
MS 1814
*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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LED Tester
Iskra ST5-L
*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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PCIe Digital I/O Board, 32 Optically Isolated I/O Channels, 24V
APCIE-1532
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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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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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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Wide-range Programmable DC Power Supply
IT6900A Series
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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Voltage Sag Generator
SKS-1132GTB
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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PCIe Digital I/O Board, 64 Optically Isolated I/O Channels, 5V
APCIE-1564-5V
32 digital inputs, 5 V, isolated16 interruptible inputs32 digital outputs, 5 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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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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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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Soil Moisture Sensor
Modbus RS485
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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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
6511A
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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Mobile Comm DC Source w/ Battery Emulation, DVM
66321D
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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Digital Multimeters
ST-3201
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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RTD Thermometers
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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Current Pulsers and Laser Diode Drivers (Pulsed Current)
These instruments generate current pulses whose amplitude is largely independent of the load voltage. This makes them ideal for pulsing device whose voltage may vary with time (for instance, the voltage drop of laser diodes may vary with temperature, or explosive squibs which change impedance during ignition). This voltage independence is a trade-off with speed. If faster rise times are required, consider using pulsed voltage instruments instead.
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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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Loop-Powered Digital Panel Meter
88-PRO
The 88-PRO Process Meter may be connected directly to a 4-20 mA, 10-50 mA or 1-5 mA current loop, with no need for additional power to the meter. This is because the meter is powered directly by the current loop, developing a maximum voltage drop of 2.5 V.
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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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Earth Contact Resistance Tester
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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6-24V Multi-functional Auto Tester With LED Display
6510A
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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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
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LIV – High-power Laser Diode Testing
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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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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Mezzanine System
5658
ECM P/N 5658 provides eight channels of 16 bit current measurement in the 0 to 25 milli-amp range. Each channel allows independent common mode voltages from -100 volts to +100 volts. Current detection is accomplished with a precision 100 ohm current sense resistor, creating a voltage drop of 2V in the current loop at 20 milli-amps.
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PoE Tester
PE-100
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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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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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.
