Delta manual Rl Measurement, LTL2000SQ RL optical system layout

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SECTION 2

GENERAL INFORMATION

Rl Measurement

The Rl part of the LTL2000S(Q) Retroreflectometer measures the Rl (coefficient of retro re- flected luminance) parameter. The Rl parameter represents the brightness of the road mark- ings seen by drivers of motor vehicles by headlight illumination.

The illumination angle is 1.24° and the observation angle is 2.29°simulating a drivers view- ing distance of 30 metres at an eye height of 1.2 metres. The observation area is app. 45 mm. x 200 mm.

The optical specification complies with EN1436. The spectral sensitivity is eye matched us- ing SMART optical filter designed and produced by DELTA. The functional layout of the LTL2000S(Q) Rl optical system is shown in figure 3 below.

A very efficient electronic stray light compensation eliminates false signals from daylight.

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101 Light source

102 Receiver and spectral matching filter

103 Illumination aperture stop

104 Observation aperture stop

105 Illumination beam

106 Observation beam

107 Collimating lens

108Mirror

109Beam splitter

110Road marking surface

111Illumination field

112Observation field

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Figure 3: LTL2000S(Q) RL optical system layout

DELTA

LTL2000S(Q) Retroreflectometer

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Contents LTL2000S / SQ Retroreflectometer Disclaimer Index Specification LTL2000S IntroductionLTL2000SQ features Measuring Getting started ButtonsWet night measurement considerations HomeScroll Keys Rl Calibration Calibration LTL2000SDisplay shows Step Calibration LTL2000SQ CalibrateQd Calibration Rl Calibration How to place the calibration normalsRemember LTL2000SQ RL optical system layout Rl MeasurementDelta A road marking 500 400 300 200 100 Up to 5 mm profile height Up to 20 cm profile gap Qd Measurement 516 517 512 Factory calibration Instrument functionDelta Keyboard Layout Keyboard functionsKey Label Key Function Measurement id Clear log dataMenu system Qd ModeRl Mode Mean CalculationQd Signal VBat Qd Qd Stray LPrint Log Disable IdDefault Settings Off TimerBattery General careProtection window Rl calibration unit Ceramics FusesLamp Calibration unitRl calibration unit Light trap Light trapPrinter How to replacing the printer paperRS-232C specification LTL DTE Data protocol Command format Following commands have been defined Command setTEST2 Command Parameter Response Appendix B Result Printout Rl Calibration PrintoutQd Calibration Printout Log Printout Qd Calibration data Qd measurement data Status PrintoutGeneral Characteristics Qd General Characteristics RlElectrical Characteristics

LTL2000S specifications

The Delta LTL2000S is a high-performance lighting solution designed to meet a variety of needs in both residential and commercial settings. This innovative product emphasizes efficiency and versatility, making it an ideal choice for those seeking to enhance their lighting systems. With advanced technology and a focus on user-friendly features, the LTL2000S has quickly become a staple in modern lighting applications.

One of the standout features of the Delta LTL2000S is its energy efficiency. Utilizing LED technology, this lighting solution provides significant energy savings compared to traditional incandescent or fluorescent bulbs. The LTL2000S offers a luminous efficacy that allows for bright illumination while consuming minimal power. This eco-friendly approach not only helps reduce electricity bills but also lowers the environmental impact, aligning with sustainable living principles.

The LTL2000S is designed for flexibility and adaptability, making it suitable for a wide range of applications. With multiple mounting options, including wall, ceiling, and pendant installations, this lighting fixture can seamlessly integrate into various spaces, from residential homes to commercial offices and retail environments. The sleek design of the LTL2000S is aesthetically pleasing and complements any interior decor, providing functionality without compromising style.

Furthermore, the Delta LTL2000S features advanced lighting controls that enhance usability. Options like dimming capabilities and programmable settings allow users to customize their lighting experience based on specific needs and preferences. The incorporation of smart technology means that the fixture can be easily integrated into existing smart home or building systems, providing seamless automation and control.

Durability is another key characteristic of the LTL2000S. Built with high-quality materials, it is designed to withstand the rigors of various environments, ensuring longevity and reliability. The robust construction also includes heat dissipation technology, which prevents overheating and extends the lifespan of the unit significantly.

In conclusion, the Delta LTL2000S stands out in the competitive lighting market due to its energy efficiency, versatility, advanced controls, and durable design. Whether used in residential or commercial applications, it serves as an excellent solution for modern lighting needs, blending performance with aesthetic appeal. This product is truly an example of innovation in lighting technology, catering to the demands of today's consumers while promoting sustainability.