Showing results: 526 - 528 of 528 items found.
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OAKTON Instruments
Get easy-to-read and accurate readings with auto-hold, auto-stable, and real-time measurements with stability indicators. The Environmental Express® Oakton® 300 series multiparameter meters utilize smart sensor technology with sensor heads that feature a built-in digital circuit for automatic sensor recognition. Sensor information including sensor ID, calibration data, and measurement setup is stored in sensor head and viewable on the meter display when sensor is connected. Sensor heads are easy to connect and disconnect with waterproof push-lock connector. Sensor cartridges (pH and EC) are replaceable for a cost-efficient and environmentally friendly system. Blue LED light on the sensor head functions as a reading stability indicator, flashing until the reading is stable. Meter stores up to 10,000 data sets with date-and-time stamp for accurate and easy analysis. Quickly transfer data from meter to computer seamlessly via USB cable or wirelessly via Wi-Fi. Easily take measurements and conveniently store meter and electrodes with built-in foldable stand on the back of the meter. Three grooves on the meter serve as electrode holders, to hold up to three electrodes simultaneously.
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Unisim Compact Solar Simulator -
TS Space Systems
The Unisim Compact is a low-cost close-match solar simulator that provides the world-leading spectral match of our award winning Unisim solar simulators in a compact, bench top unit complete with IV measurement system. As with all our Unisim solar simulators, they exceed the ASTM, IEC and JIS international standards for spectral match and temporal instability. The easy-maintenance enclosure houses a TS-Space Systems 2-zone Unisim solar simulator which combines metal halide and incandescent sources via a proprietary filter system to give an AM0 close-match spectrum (AM1.5 drop-in filter sets are available). The standard system includes an embedded source meter with complete IV measurement system (Computer, GPIB interface, IV software, MS Excel), relative irradiance indicator for monitoring lamp intensity and an electrical shutter. Product support is very important to us. Training is provided at our premises where customers can take advantage of one-on-one tuition with the solar simulator designers and learn how to operate and maintain their tools. Extensive support via phone and email for the full lifetime of the instrument is included with every TS-Space Systems product.
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TWA Standard Series -
IBEKO Power AB
When it comes to winding resistance measurement on three-phase power transformers and autotransformers, TWA Standard series offers some of the most technically advanced instruments with LCD display in the market. Both models are capable of testing six transformer windings with a one-time cable connection, as well as three-phase automatic transformer demagnetization. The stored magnetic energy is safely automatically discharged at the end of the test. The built-in tap changer control unit enables automated test mode, where the instrument operates the tap changer without operator input and records winding resistance results based on pre-selected stabilization criteria. This option makes the operator’s job significantly easier.Both models can output test currents from 5 mA to 25 A DC for the purpose of winding resistance measurement. TWA40D has a special test mode for checking the synchronization of on-load tap changers with three phases simultaneously tested in parallel, in which the total test current can rise to up to 40 A DC.TWA40D has additional advantages when it comes to non-intrusive tap changer analysis. The unique DVtest method enables checking the moving contacts of on-load tap changers during the transition, measuring the transition time, detecting open circuits, and many other types of faults. It is performed with 0.1 ms sampling rate, simultaneously with the measurement of tap changer motor current which helps with the detection of motor and mechanical issues. A special proprietary algorithm is used for testing tap changers connected through a built-in series (booster) transformer. The DVtest can be performed either on one phase or on three phases simultaneously. It can also be performed as an additional test simultaneously with the winding resistance test in all tap positions.An additional unique advantage of TWA40D is the capability of simultaneously testing the winding resistance of all three phases of a three-phase transformer (connected in a YN configuration). This can significantly shorten the total testing time – for example, it enables the operator to perform 33 measurements instead of 99 on a tap changer with 33 tap positions.The test leads for TWA three-phase transformer winding ohmmeters are interchangeable with the TRT turns ratio testers, which means that both sets of tests can be performed with a single test lead connection to the power transformer terminals.
