The centring cell has the two ‘thread insert’ connections on each side; one for the input and one for the output. By adjusting the 3 screws in the body side, it is possible to laterally adjust one with respect to the
other, either to precisely align the output to the beam or to introduce a deliberate offset.
Note that the screws need to be loosened on one side before those opposite can be screwed inwards. All 3 screws must be tightened once the adjustment is made.