is su
e or two times every year. The inspe
ld be made on the base line,
also
cording to the following method.
Insp
1. Mount and level the instrument on Point A at a plain place. Use the vertical hair to mark Point B
an
h the distance of 50m on the
ately.
2.
and air pressure in the instrument, measure the Horizontal Distance of
AB and AC accurately.
3. Set the instrument on Point B and center it accurately, measure the Horizontal Distance of BC
accurately.
4.
the Instrument Constant
：
K
＝ＡＣ
Ｃ
)
K
０，
If
｜
K
｜＞５ｍｍ
, the instrument should be strictly inspected in the
standard baseline site, and adjusted according the inspection value.
ggested to check on
ction shou
can be made ac
ection
d Point C wit
same line, and set the reflector accur
After setting temperature
Then you can get
－
(
ＡＢ＋Ｂ
should be closed to
Adjustment
strict inspection approves that the Instrument Constant K has changed and is not closed to 0. If
e operator wants to adjust, should set Stadia Constant according to the Constant K
Set the direction by using the Vertical Hiar to make Point A, B, C on the same line strictly.
here must be fixed and clear centering mark.on the point B.
Whether the prism center of Point B coincides with the Instrument Center, it is the important step
inspect the accuracy. So on Point B the tripod or tribrach compatible should be used. That will
decrease the difference.
nput Instrument Constant:
OPERATIONAL STEPS
OPERATION
DISPLAY
If
th
●
T
●
to
·I
190
Summary of Contents for STS-750
Page 6: ...6...
