BASIC INFO
Pavement Marking Retroreflectometer RL&QD is a portable field measuring instrument for measuring daytime and nighttime retroreflective brightness. It is used to measure the retroreflective characteristics of road markings. It simulates the brightness of road markings that drivers can see under daytime and nighttime motor vehicle lighting conditions. The measured parameter is the daytime and nighttime retroreflective brightness coefficient, i.e., the RL&QD value.
Specifications:
| Measurement items: | retroreflective coefficient mcd.m-2.lx-1 |
| Measurement range: | 0—4000 （RL）0—400（QD) |
| Observation angle: | 1.05° |
| Angle of incidence: | 88.76°, Complementary angle is 1.24° |
| Light source color temperature: | 2856±50K |
| Measuring aperture area: | 340mm x 95mm |
| Error of repeatability measurement: | ≤3% |
| Continuous working time of battery: | ＞72h |
| Data storage space: | 16GB |
| Built-in battery capacity: | 13Ah |
| Charger: | DC 8.4V |
| Ambient temperature: | -15℃~+60℃ |
| Ambient humidity: | ＜98%, no frost |
| Instrument size: | 700mm x 135mm x 115mm |
| Day and night mode measurements | |
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