Bartington Grad601 Operation Manual page 38

Traverse no. Positioning of sensor and beam centre
1 Left-hand sensor at 0.125m and therefore centre of beam at 0.625m from
the edge of the Grid.
2 Centre of beam 0.875m from edge of the Grid.
3 Centre of beam 1.125m from edge of the Grid.
4 Centre of beam at 1.375m from edge of the Grid.
5 Made with an increment of 1.25m, so centre of beam at 1.625m from edge of
the Grid.
The next three increments are 0.25m. This pattern of increments of 1.25m, 0.25m, 0.25m, 0.25m
is repeated for the remainder of the Grid.
BARTINGTON INSTRUMENTS
Figure 21: Dual sensor tape markings for 1, 2 & 4 lines/m
Page 38 of 61 OM1800/26