On site quality control of road markings & road surfaces in agreement with CEN specifications
The LTL2000 Retrometer is a self-contained, portable instrument with built - in facilities, capable to measure accurately and reliably retroreflection properties of road surfaces and road markings (dry and wet) including those with profiled and/or textured surfaces.
The LTL2000 Retrometer measures the retroreflection (with direct read-out of the coefficient of retroreflected luminance in mcd-m-2 .lx-1) at a simulated distance of 30m, a distance large enough to be relevant for practical driving conditions at night.
Built-in printer and non-volatile memory provide registration of measurement results and corresponding supplementary data.
Serial interface RS232 is included for extended control, calibration, and data output.
The LTL2000 Retrometer is powered by a rechargeable battery with a capacity corresponding to approx. 1000 measurements .
A mains powered battery charger is supplied as a standard accessory.
LTL2000 RETROMETER SPECIFICATIONS
Specifications in agreement with prEN 1436 draft:
Field of measurement:
Width 45 mm
Min. length 200 mm
Illumination angle to the road. 1.24�
Observation angle to the road 2.29�
Illumination angular spread horizontal 0.33�
Observation angular spread �0.17�
Equivalent observation distance 30m
Min. reading ( mcd-m-2 .lx-1) 0
Max. reading ( mcd-m-2 .lx-1) 2000
Max. length 72cm
Max. width 21 cm
Max. height 47 cm
Weight 12 kg
Gross weight 22 kg
Power supply: Internal 12V, 3.5Ah sealed lead-acid battery external charger
Memory capacity: min. 1000 measurements
Serial communications: 9600, N, 8, 1 Interface: RS232
Reflection standard- calibrated
Working reflection standard