Autographic Recording Travelling Beam Device
The 3 meter long Autographic Recording Travelling Beam Device is used to check for any irregularities in both concrete and bituminous road surfaces. A sensing unit comprising a wheel connected to an indicator provides a magnification of 4:1.
Deviation of thesurfacefrom a straight-line is shown on a scalecalibrated in increments of 2 mm in the 0-10 mm rangeand 5 mm increments in the 10-25 mm range.A dye-marker is fitted which may be used to identify suspect areas. Outrigger wheels provide mobility on site. The device is supplied as three sub-assemblies which are quickly assembled on site
The Travelling Beam is supplied fitted with an autographic recorder providing a permanent record of the surface profile. Records up to 1 km can be recorded on the special chart paper rolls used.
Wooden box should be ordered separately.
EN 12697-32, 13280-4, BS 598-104
