Showing results: 211 - 225 of 227 items found.
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3000 MPR -
Standard Electric Works Co., Ltd
● 4000-count LCD● Auto ranging● Voltage, Resistance, Current, Continuity, Diode measurement● Can measure Resistance up to 200.0 Mohm● Checks a wide range of 3-phase power sources (80~750VAC)● Phase Rotation indication : clockwise and counter-clockwise on LCD● The LCD will show AC voltage between phases and Phase Rotation● Wide range for capacitance test: 0~40000μF(40.00mF)● REL / Auto-Zero function● MAX /MIN function● VAHz function● Frequency : 40.00 MHz● Data hold function● Over range indication● Low battery detection● Auto power off in 15 minutes● Convenient stand for viewing● Comply with EN 61010-1, CAT III 600V for the range of 600V AC/DC
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IBEKO Power AB
Transformer turns ratio testers from TRT series are DV Power instruments mainly designed for the measurement of power transformer turns ratio. Also, they measure transformer excitation current and phase shift. Special tests, such as automatic vector group detection and magnetic balance, can be performed on three-phase transformers and three-phase autotransformers.All models, except TRT03 series, have a built-in true three-phase power source, which is necessary for testing turns ratio of transformers with special configurations, such as phase-shifting, rectifier, arc-furnace, traction transformers, etc.DV Power turns ratio testers can output various test voltages for different applications. From the extremely low test voltage of 1 V AC that enables turns ratio verification of the majority of current transformers, up to the highest test voltage of 500 V AC that provides the most accurate turns ratio testing of power transformers used in power generation and transmission. By using the external booster, test voltage increases up to 5 kV AC in order to successfully test capacitive voltage transformers.All DV Power turns ratio testers have a built-in tap changer control unit. Because of that, it is possible to control the on-load tap changer (OLTC) directly from the device. In order to make the most out of this feature, the instrument and included DV-Win software can be programmed to do everything automatically – running turns ratio tests, changing OLTC tap positions, and saving results. This option significantly facilitates and shortens the turns ratio testing time.TRT turns ratio testers use the same set of cables as three-phase winding ohmmeter & tap changer analyzers from the TWA series. Consequently, it enables one-time cable setup for performing eight tests:turns ratioexcitation currentphase anglemagnetic balancevector group detectionwinding resistanceon-load tap changer DVtestand demagnetization.
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DEM60C -
IBEKO Power AB
After a DC current test, such as winding resistance measurement, the magnetic core of a power or instrument transformer may be magnetized (remnant magnetism). It can cause various problems such as wrong diagnostics, inaccurate measurements on a transformer, inrush current at the start-up of a power transformer, or incorrect operation of protective relays due to magnetized CT cores. The best way to eliminate this source of potential problems is to use demagnetizer on the power or instrument transformer.The DEM60C is a fully automatic test instrument which performs three-phase transformer demagnetization. Transformer magnetic core demagnetization requires the application of AC current with magnitude decreasing to zero. DEM60C provides this AC current by internally changing the polarity of a controlled DC current. During the demagnetization process, the instrument supplies the current at decreasing magnitude for each step, following a proprietary algorithm. It can demagnetize single-phase and three-phase power transformers.The instrument can be connected to all three phases of a power transformer to be demagnetized, on either the primary or the secondary side. If a user selects specific vector diagrams for different types of transformers, DEM60C will run a specific demagnetization procedure for each transformer type (i.e., single phase, delta, wye/star, zig-zag.) without switching the test leads.DEM60C enables safe and efficient power transformer demagnetization. The instrument automatically regulates the injection of current and discharging energy from the inductance. During and after the operation, an intrinsically safe discharge circuit with an indicator rapidly dissipates the stored magnetic energy. The discharging circuit is independent of the power supply, which improves its reliability in case of loss of power.Test currents of up to 60 A DC enable efficient demagnetization of even the largest power transformers. Using a DV Win software, it is possible to control DEM60C externally.
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PWF series -
Preen AC Power Corp.
The PWF series is a family of programmable AC power source with wide range of adjustable frequency, developed for aerospace or military’s 400Hz and 800Hz test applications, such as lab use, compliance test, and quality assurance. The PWF series consists of L series and M series, which have different output frequency range. L series provides 45~500Hz and 0~300V output, and M series provides 300~800Hz and 0-150V output. Users can select communication interfaces of RS-485, RS-232, and optional GPIB. The PWF series also have programming sequence functions of STEP and GRADUAL modes, three phase independent control, phase angle control, and disturbance function.
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ATE-1 -
Lisun Electronics Inc.
Test series connection, parallel connection and series/parallel connections of the electronic ballast (about 15 kinds of connections), available for various electronic ballast. • With a precise resistance box, tube is substituted for the resistance, can act as many as 6 tubes. Resistance value: 1-4095Ω adjustable. • Measure input parameters (vrms, irms, w, pf, harmonics, etc), output parameters (on-circuit voltage, lamp voltage, filament voltage, lamp current, lamp power, oscillatory frequency), can also test the ballast efficiency, abnormity protection, and power symmetry of partial rectifier effect and etc. • Program controlled AC power source to guarantee the smart choice of input voltage and the frequency. • Equipped with 17 inch LCD controlled machine, specially designed A/D combined with special CPU, has the two left and right testing interfaces to achieve stability of data and high- speed testing. • We can make the special-designed product for you and promise to upgrade the software for free.
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TRT Advanced Series -
IBEKO Power AB
TRT Advanced series is the newest DV Power solution for transformer turns ratio measurement. Besides its main application, each turns ratio tester from this series also measures transformer excitation current and phase shift. Furthermore, all models perform automatic vector group detection and magnetic balance on three-phase transformers and three-phase autotransformers. They have a built-in true three-phase power source. For that reason, they can test transformers with special configurations, such as phase-shifting, rectifier, arc-furnace, traction transformers, etc.The instruments can output test voltages from 1 V AC to 500 V AC, depending on the model. With the highest test voltage 500 V AC, TRT500 provides the most accurate turns ratio testing of power transformers used in power generation and transmission. The output test voltage of TRT500 can be boosted to 5 kV AC using the external CVT20 extension transformer. This application is specially designed for testing turns ratio of capacitive voltage transformers. The other three models, TRT400, TRT250, and TRT100 can output up to 400 V, 250 V, and 170 V respectively. The low test voltage of 1 V AC enables turns ratio verification of current transformers.TRT500 is equipped with a large 10.1” graphical touch screen display. Other models, (TRT400, TRT250, TRT100) have 7” graphical touch screen display. Besides making the interface much more user-friendly compared to older turns ratio testers, it also brings certain options that were previously available only with DV-Win software. The most important are test templates and automatic test mode. Users can simply create test templates, store them in the instrument’s memory, and load when in the field with just a few clicks.This turns ratio test set, as well as all other DV Power turns ratio testers, has a built-in tap changer control unit. It enables remote control of an on-load tap changer (OLTC) directly from the instrument. In order to make the most out of this feature, the instrument can be programmed to do everything automatically – running turns ratio tests, changing OLTC tap positions, and saving results. This option, especially in combination with test templates, significantly facilitates and shortens the turns ratio testing time. Automatic test mode minimizes human errors, which makes the measurement more reliable.
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Alpha Lab, Inc.
The Line EMI Meter measures electromagnetic interference in a single-phase AC power line. It plugs into a wall outlet (mains socket) and requires no battery. It immediately displays total line noise in millivolts (range 1999 mV, resolution 1 mV) in the frequency range 10 KHz 10 MHz (the frequency limits at which sensitivity is of the maximum sensitivity). A speaker plays the sound of the EMI, amplitude demodulated, in order to identify the EMI source (such as an AM or shortwave radio station vs. a motor vs. an electric arc).
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USBPIA-S1 -
Alligator Technologies
The USBPIA-S1 stand alone USB controllable module provides a single channel of high-quality instrumentation amplifier and optional AC coupling, for front-end signal conditioning compatible with all popular A/D converter devices. The USBPIA-S1 is powered with 9 to 12VDC so it can be connected to a battery voltage source or the supplied 115-220VAC adapter may be used for operation with wall power anywhere in the world. When programmed from the USB port, the USBPIA-S1 will remember all of the programmed properties between power cycles. Program once and operate as a stand- alone signal conditioner without having to reprogram for every use. This is perfect for turn-key applications. It's easy to connect the USBPIA-S1 into the data collection system. Input and output signals can be routed through BNC connection or using the detachable screw terminal connectors. Optional SMA type adapters are also available.
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Extech SDL470 -
Extech Instruments Corporation
The SDL470 is a UVA/UVC Light Meter and Data logger. The SDL470 can measure both long wave and short wave UV irradiance under UVA and UVC light sources respectively. This meter features a cosine correction filter, data logging to Excel format, offset adjustment for relative measurements, type K/J thermocouple input for temperature measurements (probe sold separately), record/recall modes, min and max readings, data hold plus auto power off with disable function. This product comes with a built-in tilt stand, SD memory card, UVA light sensor with protective cover, UVC light sensor, hard case, universal AC adaptor, and 6 x AA batteries.
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LMS-3000 -
Lisun Electronics Inc.
• Measure and display the relative spectral power distribution (UV-VIS-NIR) P(λ), chromaticity coordinate, correlated color temperature, rending index, color difference, peak wavelength, luminous flux, luminous flux efficiency and photometry parameters of light source and light material under the control of general PC. • Automatically adjust high-voltage, it not only shortens the measurement time, but also reduces the wear and tear of the instrument • Simultaneously measure the temperature in both environment and integrating sphere to make the data more visually and reliably • Figure of chroma and color difference in test report can be exchanged freely • Color display and print. The relative spectral power distribution (UV-VIS-NIR) P(λ), reports both in English. RS-232-C interface, compatible with all kinds of computer • LSP-500 AC Power source PC RS-232-C interface. compatible with all kinds of computer • Range of wavelength: 380nm～780nm(Special:200nm～780nm) • Accuracy of wavelength: ±0.2nm • Repeatability of wavelength: ±0.1nm • Accuracy of chromaticity coordinate: ±0.0003(under standard illuminate A) • Spectrum sample interval: 5nm(Special order:1nm) • Luminosity linearity: 0.3% • Accuracy of luminosity: 1 class • Correlated color temperature measure range: 1500K～25000K • Accuracy of CCT: ±0.3%(under standard illuminate A) • Accuracy of rending index: ±(0.3%rd±0.3) • Environment temperature measure range: -10℃～80℃ • Temperature measure range(In sphere): -10℃～100℃
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TWR-H Series -
IBEKO Power AB
Handheld TWR-H device is DV Power single-phase instrument designed for measuring transformer winding resistance and turns ratio.The instrument has two output DC sources for measuring transformer winding resistance. The first DC source can output up to 2 A DC and is used for injecting current to the transformer’s high voltage winding. The second DC source can output up to 10 A DC and is used for testing the transformer’s low voltage winding. This is especially useful when measuring winding resistance of distribution transformers. These transformers have large turns ratio and therefore a big difference between resistances of high voltage and low voltage windings. Upon the winding resistance test, it is also possible to demagnetize the transformer core. The demagnetization process is completely automatic and safe.Together with the turns ratio, the instrument also measures excitation current and phase shift. This enables detecting transformer core or winding turns failures which cannot be spotted by measuring turns ratio only. The instrument can output test voltage up to 40 V AC for this test, but it can also output a very low test voltage of 1 V AC which is necessary for turns ratio verification of the majority of current transformers.TWR-H is powered by an internal Li-Ion battery. Up to 100 tests can be performed with a fully charged battery.
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Shanghai Himalayal Co.
1. Number of channels: 2/4 electric signal interfaces & 1 EXT interface 2. Sampling frequency: maximum 200MGa/s 3. Sampling precision: 12bit 4. Range: 0.1mV~20V 5. Range switch: 1mV, 2mV, 5mV, 10mV, 20mV, 50mV, 100mV, 200mV, 500mV, 1V, 2V, 5V 6. Frequency band range: 1Hz-60MHz 7. Range non-linear error: 5% 8. Range of capacitance for test object: 6pF~250µF 9. Power source mode: internal lithium cell / AC 220V 10. Display: 6.5 inches TFT LCD 11. Resolution: 640×480 12. PV: 4GB 13. Hard disk: 32G stiff disk used for storing the test data
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SLTM-1 -
Walter G. Legge Company Inc.
SLTM-1 Conductive Footwear Tester checks conductive footwear automatically. The SLTM-1 Conductive Footwear Tester automatically and accurately measures the exact amount of resistance in conductive footwear and body grounding devices, ensuring a static control environment. It is ideal for dangerous, potentially explosive areas or areas in the electronic industry where static can destroy sensitive components. Stand on the foot plates and the unit’s direct-reading dial with graduated, color-coded scale indicates the exact amount of resistance. Shipped complete and ready to operate. Has 8 feet of 18-3 type SJ power cord that plugs into any grounded 120-volt AC power source. This unit measures 17 x 12 inches and weighs less than 6 1/2 lbs. All conductive footwear and body grounding devices, such as LEGSTATS, must be worn in pairs. SLTM-1 passes conductive footwear with resistance less than 2.5 MEG Ohm.
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Becker Nachrichtentechnik GmbH
Becker Nachrichtentechnik GmbH offers a comprehensive portfolio of active multicouplers and bi-directional signal splitters for duplicating RF signals from common sources. The multi-couplers are designed in 50 ohm technology and are available as a 19 ", 1 U devices as well as slot-in modules for our 'Modular RF Systems' platform. With help of the slot-in modules, larger scale distribution structures can be realized in a space-saving and cost-effective manner. Some devices are available in variants for AC or DC power supply and provide service-friendly remote monitoring capabilities. For use in the production of infotainment components special multi-couplers with integrated HF and DC test functions are available. The multi couplers are used in applications like radio monitoring and direction finding, in product development, validation, manufacturing, quality assurance and in the field of research.
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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.
