Product Manual

2 Preparation
20 Nikon XF Series Total Station Instruction Manual
Measurement with a prism
Do not use a prism with scratches, a dirty surface, or a chipped center. Prisms with
thin edges are recommended.
As the instrument is extremely sensitive, multiple reflections on the prism surface can
sometimes cause a significant loss in accuracy.
To maintain the accuracy of your measurements:
When measuring a short distance, incline the prism slightly so that the EDM
can ignore unnecessary reflections on the prism surface, as shown below.
Hold the prism securely in place and do not move while taking measurements.
In Prism mode, in order to avoid false measurements on objects other than the prism or reflector-sheet, targets
that are less reflective than the prism or reflector sheet are not measured. Even if measurement is started,
measured values are not displayed. To measure less reflective objects, use the N-prism (reflectorless) mode
thin edges
chipped center thick edges