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a plot of amplitude over time.

See Also: Sine Wave, Square Wave, Oscilloscopes

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  • EMC Testing

    Keystone Compliance

    Keystone Compliance is a unique EMC test facility because of our focus on assisting our customers achieve the measurements and certifications that they are seeking. Our lab features three 3-meter EMC chambers and two military/aerospace EMC chambers. In addition to the chambers, the lab significant ground planes, equipment and software that optimize the efficiency of the testing. EMC TestingKeystone Compliance is a unique EMC test facility because of our focus on assisting our customers achieve the measurements and certifications that they are seeking. Our lab features three 3-meter EMC chambers and two military/aerospace EMC chambers. In addition to the chambers, the lab significant ground planes, equipment and software that optimize the efficiency of the testing.Our EMC/EMI testing capabilities include but are not limited to:Radiated immunity testing up to 200 V/m from 10 kHz to 40 GHzRadiated emissions testing up to 40 GHzSurge testing to 10kV/10kA – and higherElectrostatic Discharge “ESD” testing up to 30 kVConducted immunity testing to levels well above the highest defined “standard” levelsMagnetic field immunity testing up to 100 A/m continuous and 1000 A/m short/impulseCustomized transient waveforms to extend level, duration and/or repetition of the standard’s definitionShielding Effectiveness from small panels and boxes all the way up to large enclosures and cabling, with a wide dynamic range all the way to 40 GHzWhat differentiates Keystone Compliance from other EMI test labs is our consultative engineering and expedited EMI test reports. Our staff understand EMC/EMI testing and has extensive experience with radiated immunity, radiated emissions, conducted immunity, conducted emissions, surge, ESD and shielding effectiveness testing. We also cater to specialized testing requirements. If you do not see the test standard or testing requirement you are looking for, please contact us as we may still be able to assist you.For more information about our scope of accreditation, please visit the links below.CISPR StandardsIEC/EN Product Family StandardsIEC/EN Test StandardsISO, SAE and Vehicle StandardsMilitary StandardsFCC, North American and International StandardsShielding Effectiveness TestingLightning and Surge Testing

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  • 60kw off grid power inverter 110/220V split-phase output converter

    SDP-60KW - Zhejiang Sandi Electric Co., Ltd

    Our SDP series Off Grid Pure sine wave inverter is one of the most advanced DC to AC conversion products in the world, it is suitable use for areas without electricity, vehicles, ships, solar energy, wind turbine and other renewable energy systems and etc, can supply power and provide guarantee effectively for the areas with traffic inconveniences, in the mountains, pastoral, border, island and other areas without electricity. It has the main advantages of high quality sine wave AC output, microcomputer control, humanness design, and it is high efficiency and low no-load loss, and no pollution. The inverter can also supply AC power to all kinds of electric equipment, air conditioners, motors, refrigerators, lights, TV, electric fans and other industrial power supply.1. Using the sixth generation efficient IPM intelligent module from Japanese Mitsubishi, high efficiency and stable performance. It with powerful protection function, the protection for short circuit, over load, over temperature is more safe and reliable. It’s service life can up to 15 years or more.2. Intelligentized, modularized, simple structure design with powerful function.3. Two kinds of start mode: Step-down Voltage Start and Variable Frequency Start. Customers can set start mode according to the type of their load. This function is very convenient for users and also reduce frequency converter’s usage, which reduced the cost of equipment investment, easy to connect wires and control.4. The output frequency can be setting via LCD panel, it’s very convenient for customer.5. The output voltage can be set between -40 % to +20 % of rated voltage. And the output voltage is very accuracy ±1%.6. The DC input voltage range can be set. Over-voltage point, under-voltage point, over-voltage recovery point, under-voltage recovery point all can be setting via the LCD panel.7. Pure sine wave output. With good dynamic response less than 50MS, waveform distortion rate smaller, higher conversion efficiency and stable output voltage.8. Low Frequency Transformer, which ensures that inverter has high efficiency.9. High conversion efficiency, Max. Efficiency≥94%,if 48VDC input,the efficiency can more than 85%.10. Adopts black pure aluminum radiator, which confirms the best radiating performance.11. Powerful data display function. LCD can display the DC input voltage, output frequency, phase voltage, phase current, AC bypass input voltage, output power KWH, time and date, temperature, fault code display.12. Wide input voltage can be set according to customer’s requirement. Input voltage range can be selected from 150-400V or 300-600V or 400-800V.13. Wide input voltage can work without battery and solar charge controller,save more cost and With MPPT wide voltage input function, maximum use of solar power

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