Nikon NPL-322, Инструкция по эксплуатации

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Total Station NPL-322 Instruction Manual 23
Preparation 2
B
Tip – When you use the prism at a short distance, set the prism at a slight angle to the sighting
axis, rather than completely square.
Setting the position of the target plate
If using a single prism, make sure that the target plate is aligned with the tribrach
adapter and the prism.
To set the position of the target plate:
1. Use the two set screws supplied to attach the
target plate to the single prism holder.
2. Move the target plate within the screw holes
until the apex of the wedge pattern is aligned
with the vertical axis of the prism and the
tribrach adapter.
Face-1/Face-2 Measurement
You can take a measurement from either face of the instrument. To change the face,
rotate the instrument 180° on its base, and rotate the telescope 180° within the
standard.
By averaging the Face-1 and Face-2 measurement values, you can cancel out most
constant mechanical errors. Some errors, such as vertical axis error, cannot be
cancelled out by averaging Face-1 and Face-2 measurements.
C
CAUTION – When rotating the telescope, take care not to catch your finger in the gap between
the instrument’s standard and the telescope.
A Face-1 measurement is made with the vertical circle positioned to the left of the
telescope eyepiece. A Face-2 measurement is made with the vertical circle positioned
to the right of the telescope eyepiece.
Center on axis
Face-1 Face-2