The photometer is fitted with long-life light sources and contains no user-serviceable components. If the instrument requires servicing or repair, contact YSI Technical Support Department.

It covers the calibration of standards of luminous intensity, luminous flux, illuminance, luminance, luminous exposure, and color temperature (test numbers 37010C–37070C and 37020S-37130S in …

High precision photometer used to measure illuminance, luminous intensity, and luminous flux in laboratory or field applications as well for control purposes for lighting systems.

Build your own home build photometer using LED bulbs, photodiode detectors, black tape, circuit components, and two-phase epoxy. Extra points will be awarded for the most creative design. …

Thank you for purchasing a YSI 9800 Photometer. This manual covers setup, operation, and functionality. You can find additional information at YSI.com/9800 including supporting documents …

Phos (Greek) for light => Photometry is a measurement method to analyse (aqueous) solutions by means of a light source. Determination of substances by their specific colour reaction and light …

Photometry is the science concerned with measur-ing human visual response to light. Because the eye is a highly complex organ, this is by no means a simple task. It involves the meeting of many …