Fast Photo-Electric Brightness Test Meter

Fast Photo-Electric Brightness Test Meter

Product No: LS616S

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    Description

    The Fast Photo-Electric Brightness Test Meter comprises three primary subsystems: electrical parameter measurement circuitry, photometric parameter measurement circuitry, and a CPU system circuit. Voltage and current signals undergo amplification before transmission to a high-speed A/D converter, with subsequent digital signal routing to the microprocessor. Concurrently, the input current signal from the brightness detector is processed through I/V conversion to the A/D converter, then digitally transmitted to the microprocessor. The microprocessor executes real-time processing of photometric and electrical parameter data, enabling automatic range switching with simultaneous calculation and display functions.

    Key Features:

    • Quad-window display for simultaneous electrical and photometric parameter monitoring, minimizing reading errors
    • Integrated lamp holders for direct lamp installation and testing
    • True RMS measurement of electrical parameters
    • High-accuracy V(λ) correction in photodetector, compliant with national CLASS 1 brightness meter specifications
    • Automatic measurement range switching based on test results
    • Dual watchdog circuit implementation ensuring high reliability and system stability in complex operational environments

    Technical Specifications:

    Electrical Parameters:

    • Measurement Range: Voltage: 0-300V; Current: 0-0.5A/5A (automatic range switching)
    • Input Impedance: Voltage: >1MΩ; Current: <0.01Ω
    • Frequency Range: Base frequency 45Hz, bandwidth 5kHz
    • Accuracy Specification: Voltage, Current, Power: ±(0.4% of reading +1 digit)
    • Power Factor Accuracy: ±(0.004 + 0.001/reading +1 digit)

    Photometric Parameters:

    • Brightness Measurement Range: 0.001kcd/m² to 999.9kcd/m²
    • Accuracy Class: CLASS 1 per applicable standards
    • Range Switching: Four-level decade range automatic switching

    LISUN LS616S Fast Photo-Electric Tester – After-sales Frequently Asked Questions (FAQ). LISUN LS616S Fast Photo-Electric Tester were in the market for more than 10 years, LISUN engineers service t… (truncated)