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Resistance

that which keeps current from flowing freely.

See Also: Resistivity, Resistance Standards, Resistance Meters, Resistance Test, 4-wire


Showing results: 2596 - 2610 of 2653 items found.

  • Safety Compliance Test System

    EN 60601 - LXinstruments GmbH

    Test system for electrical safety compliance testing of medical products in accordance with EN 60601-1, 3rd edition.The system is equipped with three test fixtures which are connected in parallel order to reduce the number of setup tasks for different variants in the course of day-to-day manufacturing processes. Its purpose is to test medical products, e. g. patient monitors, which are employed at hospitals to monitor heartbeat and oxygen saturation.Based on the integrated electrical safety tester by Associated Research, in combination with an AC power source and a switching matrix, it is possible to fully automate tests like for instance AC/DC high-voltage tests, insulation resistance measurements, earth connection tests and leakage current measurements.The required occupational safety is provided by a high-voltage safety hood in accordance with EN 501191. The entire safety technology, as well as the control PC, is mounted in an aluminum-profile cart.

  • Near-Field Probes 100 kHz up to 50 MHz

    LF1 set - Langer EMV-Technik GmbH

    The LF1 near-field probe set consists of 4 shielded near-field probes used during the development process for emission measurement of longwave, medium wave, and shortwave frequencies on electronic devices. The probe heads of the LF1 set are designed for incremental detection of sources of electromagnetic interference on assemblies. First, the electromagnetic interference of the assembly is detected by the LF-R 400 probe from up to 10 cm. Then probes with higher resolution like the LF-B 3, LF-U 5 and LF-U 2.5 are used to more precisely detect any source of interference. The probe heads are designed for taking measurements at single pins and larger components. Near-field probes are small and handy. They have a current attenuating sheath and, therefore, are electrically shielded. They can be connected to a spectrum analyzer or an oscilloscope with a 50 Ω input. The H-field probes do not have an internal terminating resistance of 50 Ω.

  • 1000A True RMS AC/DC Clamp Meter with IR Thermometer

    Extech EX830 - Extech Instruments Corporation

    The EX830 clamp meter features a unique, built-in, non-contact Infrared thermometer with laser pointer to monitor temperature and locate hot spots on motors and electrical devices. A large 4000 count LCD display with bright back lighting allows you to see the reading in dim light. The ergonomically designed double-molded housing offers a better grip for one-hand operation. The 1.7" (43 mm) diameter jaw opening is large enough for conductors up to 750MCM. In addition to AC/DC current, it measures AC/DC voltage, resistance, temperature, capacitance, and frequency. It features: diode test, audible continuity beeper, min/max, data hold, auto power off, and a fast peak hold that captures inrush currents and transients. Comes complete with test leads, 9V battery, type K bead wire temperature probe (-4 to 482°F/-20 to 250°C) and a belt holster.

  • 12 Function True RMS Professional MultiMeter + InfraRed Thermometer

    Extech EX470A - Extech Instruments Corporation

    The Extech EX470A True RMS Multimeter and Infrared Thermometer with Capacitance, Frequency, and Duty Cycle Measurements and 2 K-Type Remote Probes is the perfect meter for HVAC or plant maintenance. The IR thermometer measures the surface temperature from -4 to 518 °F (-20 to 270 °C) without contact. The built-in laser pointer centers the measuring area. Multimeter functions include AC and DC Voltage to 600 Volt, AC and DC current to 10A, resistance to 40MOhm, continuity and diode test. Also includes Type K thermometer for contact or air temperature measurements from -4 to 1832 °F (-20 to 750 °C). Advanced functions include Capacitance, Frequency and Duty Cycle. The meter comes complete with test leads, Type K temperature probe, 9 Volt battery, protective holster, adjustable tilt stand and Velcro hanging strap.

  • Fanless Embedded System With Intel® Atom™ Processor E3845 Quad Core™ (1.91 GHz) For Railway PC

    tBOX323-835-FL - Axiomtek Co., Ltd.

    The tBOX323-835-FL, a fanless railway PC, is designed for in-train applications. Integrated with onboard quad-core Intel® Atom™ E3845 processor and 4 GB low-powered DDR3L memory. The fanless railway PC boosts its computing performance and specializes its I/O design with five isolated COM ports, two M12-type LAN connectors, USB 2.0 ports, and one isolated digital I/O. The railway PC also provides VGA and HDMI outputs for in-train surveillance. The tBOX323-835-FL is an ideal all-in-one IoT (Internet of Things) solution for various applications, including railway multi-functions of gateway, controller, digital signage management and surveillance. Certificated with EN50155 and EN50121 for rolling stock and complied with EN45545-2 for fire resistance, the rugged embedded system operates reliably in a -40ºC to 70ºC operating temperature range (EN50155 Class TX) and in a high vibration environment.

  • Extremely Accelerated Stress Test Chambers

    ACMAS Technologies Pvt. Ltd.

    The extremely accelerated stress environment is defined by high temperature, high humidity and high pressure. WEIBER provides humidity resistance evaluation test for electronics components through customized Extremely Accelerated Stress Test Chamber. This chamber provides high performance test in minimal amount of time according to international IEC 60068-2-66 standard. This chamber also known as Accelerated Stress Test Chamber, Halt and Hass Test Chamber, Halt Test Chamber and Hass Test Chamber.This chamber reduces the time taken for humidity testing in electronic components. 2 types of tests saturated and unsaturated extremely accelerated stress test can be performed. In saturated test the temperature is maintained at 1210C at 100%RH, and for unsaturated temperature of 110, 120, 1300C is maintained at 85%RH. Normally for electronic components unsaturated type test is done.

  • Digital H.V. Insulation Tester(10kV)

    6310 IN - Standard Electric Works Co., Ltd

    ● 2 Lines × 16 Characters LCD● Microprocessor-controlled● Tests insulation resistance up to 20 TΩ● 4 Insulation test voltages: 1000V, 2500V, 5000V, 10000V● AC / DC Voltmeter (30~600V)● Short-circuit current up to 5mA● PI (Polarization Index) indication● DAR (Dielectric Absorption Ratio) indication● Auto-ranging on all insulation ranges● Optical USB to RS-232 data transmission● Well isolated from contact● Well protected from surges● 2 built-in optical LEDs for data transfer● Visual and audio warning of external voltage presence (≥30Vac or ≥30Vdc)● Auto-hold function to freeze reading● Overload protection● Adjustable testing duration: 1~30 minutes● Internal memory for data storage● Displays testing duration for insulation measurement● Auto-off function● 200 measurement results can be saved in memory and recalled on

  • Digital H.V. Insulation Tester(5kV)

    6305A IN - Standard Electric Works Co., Ltd

    ● 2 Lines × 16 Characters LCD● Microprocessor-controlled● Tests insulation resistance up to 10 TΩ● 4 Insulation test voltages: 500V, 1000V, 2500V, 5000V● AC / DC Voltmeter (30~600V)● Short-circuit current up to 5mA● PI (Polarization Index) indication● DAR (Dielectric Absorption Ratio) indication● Auto-ranging on all insulation ranges● Optical USB to RS-232 data transmission● Well isolated from contact● Well protected from surges● 2 built-in optical LEDs for data transfer● Visual and audio warning of external voltage presence (≥30Vac or ≥30Vdc)● Auto-hold function to freeze reading● Overload protection● Adjustable testing duration: 1~30 minutes● Internal memory for data storage● Displays testing duration for insulation measurement● Auto-off function● 200 measurement results can be saved in memory and recalled on

  • Digital H.V. Insulation Tester(5kV)

    6305 IN - Standard Electric Works Co., Ltd

    ● High contrast OLED display● Microprocessor-controlled● Tests insulation resistance up to 10 TΩ● 4 Insulation test voltages: 500V, 1000V, 2500V, 5000V● AC / DC Voltmeter (30~600V)● Short-circuit current up to 5mA● PI (Polarization Index) indication● DAR (Dielectric Absorption Ratio) indication● Auto-ranging on all insulation ranges● Optical USB to RS-232 data transmission● Well isolated from contact● Well protected from surges● 2 built-in optical LEDs for data transfer● Visual and audio warning of external voltage presence (≥30Vac or ≥30Vdc)● Auto-hold function to freeze reading● Overload protection● Adjustable testing duration: 1~30 minutes● Internal memory for data storage● Displays testing duration for insulation measurement● Auto-off function● 200 measurement results can be saved in memory and recalled on display

  • Digital H.V. Insulation Tester(5kV)

    6304 IN - Standard Electric Works Co., Ltd

    ● 2 Lines × 16 Characters LCD● Microprocessor-controlled● Tests insulation resistance up to 10 TΩ● 4 Insulation test voltages: 500V, 1000V, 2500V, 5000V● AC / DC Voltmeter (30~600V)● Short-circuit current up to 1.9mA● PI (Polarization Index) indication● DAR (Dielectric Absorption Ratio) indication● Auto-ranging on all insulation ranges● Optical USB to RS-232 data transmission● Well isolated from contact● Well protected from surges● 2 built-in optical LEDs for data transfer● Visual and audio warning of external voltage presence (≥30Vac or ≥30Vdc)● Auto-hold function to freeze reading● Overload protection● Adjustable testing duration: 1~30 minutes● Internal memory for data storage● Displays testing duration for insulation measurement● Auto-off function● 200 measurement results can be saved in memory and recalled on display

  • Multifunction Calibrator 15 ppm Basic Accuracy

    MC142 - Powertek LLC

    Multifunction calibrator MC142 is a precision voltage, current and power calibration source serving as a measurement standard in calibration laboratories and production lines; where verification of electrical measurement equipment & sensors is required. It can be used for calibration and adjustment of meters measuring voltage, current, power, resistance, capacitance and frequency. Internal harmonic and non-harmonic signals make it possible to test electrical performance of meters using signals with various crest factors. Frequency modes enable selection of frequency, amplitude and duty cycle of the output signal. These are suitable for basic calibration of digital and analog oscilloscopes along with transient recorders. The calibrator is equipped to measure temperature with TC and RTD temperature sensors. Its built-in multimeter can be used independently or simultaneously with the calibrator output. Testing of transducers of various types, regulators and sensors can be performed, without the necessity to use any other measuring instrument.

  • PXI Device Power Supply - 4 Isolated Channels, 20-bit Measurement Resolution

    52310e series - Chroma ATE Inc.

    Chroma 52310e Series i s a programmabl e PXI-Express DPS (Device Power Supply) Card designed for high-accuracy and reliable output power for device test applications. Its compact size, easy level of integration, and high flexibility make the 52310e Series ideal for multi-channel power supplies. Chroma 52310e Series features 8 selectable control bandwidths to ensure high speed output and stable operation; multiple current measurement ranges with a 20-bit DAC/ADC provide the highest resolution and accuracy with a sampling rate up to 600K S/sec; programmable internal series resistance for battery simulation. Chroma 52310e DPS series has a patented hardware sequence engine that has deterministic t iming to cont rol each DPS channel. The sequencer's on-board memory can store up to 1024 sequencer commands and 32k measurement samples per channel.

  • Micro-Ohmmeters

    RMO-A Series - IBEKO Power AB

    The RMO-A is a portable micro-ohmmeter designed for contact resistance measurements of switchgear during manufacturing, commissioning and maintenance stages. This micro-ohmmeter is widely used by medium and high-voltage circuit breakers manufacturers. Other typical applications are testing of disconnecting switches, high-current bus bar joints, cable splices, and different high-current links. It accurately measures not only in factory environments but also in high-induction fields and substationsThe RMO-A series contains 6 models, rated from 100 A (RMO100A) to 600 A (RMO600A). The RMO500A (formerly CPM500) is our best seller, with 500 A ripple-free current and weighs only 8 kg.Although placed in a very portable and lightweight metal housing, RMO-A micro-ohmmeters have very high output power capabilities. They can generate 600 A test current continuously for up to 20 s. You can test with current up to 100 A without rest time. High output voltage enables a wider measurement range at the highest test currents, as well as the use of thinner/longer test cables. For testing with 100 A, 20 m test leads can be provided with only 16 mm2 cross-section.RMO-A micro-ohmmeter generates a true DC ripple-free (less than 1 %) current with automatically regulated test ramps. During a test, the RMO-A ramps up with increasing current before measuring and decreasing current after the measurement. This significantly decreases magnetic transients and ensures great accuracy.An additional option is a built-in High Precision module suitable for measurement of very low resistances, ranges from 1 to 30 µΩ, with 0,01 µΩ resolution.These instruments can store up to 500 measurements in internal memory. A built-in thermal printer is available as an option.Our free DV Win software communicates with the RMO-A micro-ohmmeters via USB or RS232 interface. It allows you to run the test remotely from PC, as well as to download test results, analyze and generate fully configurable test reports.

  • Circuit Breaker Analyzers & Timers

    CAT Advanced Series - IBEKO Power AB

    DV Power circuit breaker analyzer and timer utilizes the latest technological enhancements for safe and fast testing of circuit breakers. The sophisticated design ensures efficient and reliable operations in high-voltage substations and industrial environments.The CAT Advanced series are stand-alone or PC-controlled digital instruments for a circuit breaker testing. The timing channels record closing and an opening of the arcing, resistor, and auxiliary contacts. Also, the main contact channels can measure the resistance value of the pre-insertion resistors (if present in the circuit breaker).With CAT Advanced series instruments, it is possible to record graphs of open and close coil currents. Furthermore, it records displacements of the HV and MV circuit breaker moving parts. Test results can be saved via USB, PC or be printed via 112 mm (4.4 inches) thermal printer (optional accessory) in tabular and graphical form.A circuit breaker test consists of different operational modes and CAT Advanced series supports:Open (O)Close (C)Reclose (O-0,3s-C)Trip free (CO)O-0,3s-COOpen-Close (O-C)Close-Open (C-O)Open-Close-Open (O-C-O)First trip (O)Multiple operations, such as Open-Close and Open-Close-Open, can be initiated by using a predefined delay time or by sensing a breaker’s contact position.The auxiliary inputs are used to monitor dry and wet auxiliary contacts. The six coil control analog channels measure and record coil currents simultaneously (OPEN and CLOSE), up to 35 A AC/DC.The additional six voltage analog channels have four selectable voltage ranges available (±1 V, ±5 V, ±60 V and ±300 V AC/DC).A built-in micro-ohmmeter generates up to 500A true DC ripple-free current with an automatically regulated test ramp that provides performing static and dynamic contact resistance measurement.Three transducer channels provide a measuring displacement of the circuit breaker moving parts, contact wipe, over-travel, rebound, damping time and average velocity. Also, a user can connect either an analog or a digital transducer to these universal channels.

  • Near Field Probes 30 MHz up to 3 GHz

    RF6 set - Langer EMV-Technik GmbH

    The RF6 near field probe set consists of 2 passive magnetic field probes and 2 passive E field probes for measurements in the development phase of the E-field and magnetic field in the range from 30 MHz to 3 GHz on electronic assemblies. The probe heads of the RF6 set allow a step by step localization of interference sources of the RF magnetic field and RF-E-field on an assembly. From a larger distance the electromagnetic interference is detected by RF-R 50-1 for the magnetic field and by RF-E 02 for the E-field. The RF-B 3-2 and RF-E 10 probes with their higher resolution can more presicely detect the interference sources of the magnetic field and the E-field. Field orientation and field distribution on an electronic assembly can be detected by special guidiance of the near field probe. The near field probes are small and handy. They have a sheath current attenuation and are electrically shielded. They can be connected to a spectrum analyzer or an oscilloscope with a 50 Ω input. They do not have an internal terminating resistance.

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