CSIR-CRRI Portable Retroreflectometer

Instrument Detail

For coefficient of retroreflection of sign sheets in the field and in the lab

Make : RoadVista
Model : 930C

Specification :

Variable observation (0.2⁰ to 2.0⁰) and entrance angles
Meets LS-300C, ASTM, CIE & DIN specifications
Three measurement ranges
Photopic-corrected detector and source "A"
Reference standards included
Solid- state electronics
Digital liquid- crystal display
Long-life battery and recharger
Foam-lined carrying case

Working Principles

Real life scenaio of different entrance and observation angles are created in the instrument for the matrix angles given in the ASTM or other standards
Coefficient of retroreflection of sign sheets for different standard angles can be measured.

Applications

The model 930C system allows the materials and test engineer as well as the quality control inspector to conveniently measure road signs. The model 930C has continuously adjustable entrance angles from -45⁰ to +45⁰ and stepper controlled continuously adjustable observation angles from 0.2⁰ to 2.0⁰.

User Instructions

Instruction Manual Available

Contact Details

CSIR-CENTRAL ROAD RESEARCH INSTITUTE
Delhi-Mathura Road
P.O: CRRI, New Delhi-110025
Phone: +91-11-26848917
Email Id: director.crri@nic.in