Delta LTL2000S Specifications Page 44

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DELTA LTL2000S(Q) Retroreflectometer 40
APPENDIX C
SPECIFICATION
General Characteristics R
l
Illumination angle to the road ......................................................................................... 1.24º
Observation angle to the road.......................................................................................... 2.29º
Equivalent observer distance............................................................................................30 m
Observation angular spread .......................................................................................... ±0.17º
Type 30m CEN
Illumination angular spread horizontal........................................................................ 0.33º
Illumination angular spread vertical ............................................................................ 0.17º
Field of measurement:
Width ........................................................................................................................ 45 mm
Length (typ.) ........................................................................................................... 200 mm
Min. reading (mcd·m
-2
·lx
-1
) ....................................................................................................0
Max. reading (mcd·m
-2
·lx
-1
) .................................................................................... Typ. 2000
Profile height up to .................................................................... 4 mm (or 20 cm profile gap)
General Characteristics Qd
Illumination .................................................................................................................Diffuse
Observation angle to the road.......................................................................................... 2.29º
Equivalent observer distance............................................................................................30 m
Aperture angle ................................................................................................................. 0.33º
Field of measurement:
Width ........................................................................................................................ 45 mm
Length (typ.) ........................................................................................................... 200 mm
Min. reading (mcd·m
-2
·lx
-1
) ....................................................................................................0
Max. reading (mcd·m
-2
·lx
-1
) .............................................................................................. 318
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