Day visibility retroreflectometer LTL3000

night visibilityfor horizontal pavement markinghandheld

Portable retroreflectometer for RL and Qd. Tightly dimensioned design, lightweight and durable materials combined with the latest technology make the LTL3000 a very easy to use portable retroreflectometer. Just measure and go. LTL3000 is part of a new generation of DELTA retroreflectometer instruments for measuring retroreflection of road markings. The instrument is based on the latest technological developments and with modern design and materials. LTL3000 is, like all other DELTA instruments, very easy to calibrate and operate, we like to say: “very user-friendly”. And the instrument is of course robust and long lasting – like our earlier generations of road marking retroreflectometers – and on top of this small in size and light in weight. RL and Qd retroreflection measurements The LTL3000 model is supporting not only night visibility (RL), but also daytime visibility (Qd) according to European and US standards. Where RL is a measure of the visibility of the nighttime retroreflected light, the Qd is a measure of the daytime visibility under diffuse illumination during daytime. In particular performance of markings at nighttime is a very important factor in ensuring safe driving conditions besides being a key parameter in making automated vehicles recognize the markings allowing good navigation abilities. Only measurement with a retroreflectometer like LTL3000 is able to tell if a marking performs according to standards. LTL3000 measures daytime visibility and nighttime visibility under dry and wet conditions. LTL3000 measures RL from 0 to 4.000 mcd/lx/sqm and Qd from 0 to 318 mcd/lx/sqm.