Skip to main content

Reflective values from DELTA

Danish company DELTA is introducing its new RetroSign GR3 Retroreflectometer for quality control and asset management of road signs and retroreflective materials with laboratory precision. The company says that to achieve these goals the triple geometry retroreflectometer is offered with GPS and RFID (radio frequency identification) reader.
March 16, 2012 Read time: 2 mins
Danish company 199 Delta is introducing its new RetroSign GR3 Retroreflectometer for quality control and asset management of road signs and retroreflective materials with laboratory precision.

The company says that to achieve these goals the triple geometry retroreflectometer is offered with GPS and RFID (radio frequency identification) reader.

The handheld instrument is used for measuring the retroreflection of traffic signs. It measures the coefficient of retroreflection (RA) according to US and European standards.

"The triple geometry facilitates simultaneous measurements at various observation angles as proposed by ASTM (The 3930 American Society for Testing and Materials). The RetroSign GR3 measures simultaneously at observation angles at 0.2/0.33º, 0.5º, and 1º," says DELTA.

"The point aperture geometry specified by ASTM ensures realistic and accurate readings replicating realistic driving conditions. Furthermore it enables the user to determine if a microprismatic sign sheeting material has been applied correctly.

Due to the DELTA proprietary gradient index ultra hard coating (UHC) technology the sensor response meets the ASTM 1709 requirements combining the CIE (International Commission on Illumination) eye response and CIE illuminant A." DELTA says that the RetroSign GR3 is designed to easily interface with current and future ID tagging and asset management systems, and the internal memory stores up to 250,000 readings, "which essentially means that the instrument never runs out of memory."

For more information on companies in this article

Related Content

  • Controls Group highlights Servopac and PaveAnalyser
    February 10, 2015
    Controls Group, an Italian testing equipment business specifically for the construction industry, is highlighting two products specifically for the highways sector – a bitumen analyser and a gyratory compactor. In March last year, Controls bought the Australian business IPC Global and will showcase its new subsidiary’s Servopac 76-PV20A02, a fully automatic, servo-controlled gyratory compactor designed for asphalt mixes. Users can set the needed axial stress, exceeding the requirements of AASHTO (American
  • Controls Group highlights Servopac and PaveAnalyser
    January 6, 2017
    Controls Group, an Italian testing equipment business specifically for the construction industry, is highlighting two products specifically for the highways sector – a bitumen analyser and a gyratory compactor. In March last year, Controls bought the Australian business IPC Global and will showcase its new subsidiary’s Servopac 76-PV20A02, a fully automatic, servo-controlled gyratory compactor designed for asphalt mixes. Users can set the needed axial stress, exceeding the requirements of AASHTO (American
  • Advances in asphalt testing
    June 18, 2012
    The latest asphalt testing equipment brought onto the market is both innovative and highly accurate as Kristina Smith reports Advanced pavement design requires advanced test equipment. And advanced test equipment takes time and money to design, engineer and produce. But if your expensive testing machine could perform a few more tricks, buying one would make financial sense to more organisations. This is the thinking behind IPC Global’s new Uniaxial Fatigue Test Kit for its Asphalt Performance Mixer Tes
  • Energy Saving Roads - The Future Way of Sustainable Infrastructure
    April 23, 2019
    A workshop into environmentally-friendly road construction was held in Denmark - report from Mikkel Bruun, Bruun Communication Recent advances in road construction have included the development of climate asphalt, which reduces rolling resistance and saves CO2. But what is it and how does it affect the production and use of asphalt pavements? And what are the socio-economic implications? The ROSE project that just ended with a workshop in Copenhagen might hold the answers. The rule of thumb is that lo