Measurement accuracy is directly related to the degree that the OMU is aligned with the direction of the pipe it is measuring. The standard centralizing wheel-sets are especially designed to ensure an optimal alignment in the pipe. The standard sets cover a pipe ID range from 90mm up to 1000mm.
Other sizes can be designed to your specifications.
For sectors like waste/flood water infrastructure and relining projects, Reduct offers a range of invert wheel units that enables the user to run the DR-4 probe along the invert of a pipe. Due to its position and large wheel sizes, the invert wheel set can pass lateral connections and pipe deformations with ease. The minimum pipe ID required is 150mm/6".