Advanced Optical System • LED that generates little heat • 8 nm narrow band interference filter that is accurate to ±1 nm and offers 25% increase in light efficiency. • Reference detector that modulates the voltage to LED for consistent light output. • A concave focusing lens that reduces errors from imperfections in the cuvette High E¤ciency Light Source LED light sources oer superior performance compared to tungsten lamps. LEDs have a much higher luminous e¤ciency, providing more light while using less power. They also produce little heat, which could otherwise aect electronic stability. LEDs are available in a wide array of wavelengths, whereas tungsten lamps have poor blue/ violet light output. High Quality Filters Improved optical ¡lters ensure greater wavelength accuracy and allow a brighter, stronger signal to be received. The end result is higher measurement stability and less wavelength error. Stable Light Source The internal reference system of these photometers compensates for any drifts due to power uctuations or ambient temperature changes. With a stable source of light the readings are fast and reliable between your blank (zero) measurement and sample measurement. Greater Light Yield A focusing lens collects all of the light that exits the cuvette, reducing errors from imperfections and scratches that may be present in the glass. The use of the convex lens reduces the need for indexing cuvettes. 142.5 mm (5.6”) 102.5 mm (4”) 50.5 mm (2”) 10 Photometers 10.64 | www.hannainst.com portable
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