SatLab SLT2 - Prism Height Unknown Calculation

Total Station Manual
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103
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10.1 Prism High Unknown
If the high of prism is unknown, the calculation formula of the remote height is:
H = S * cosα
1
* tanα
2
– S * sinα
1
* tanα
3
H Height difference between the base point and the remote point
V Prism High
S Slope distance between instrument and prism
α
1
Vertical angle to prism
α
2
Vertical angle to target point (remote point)
α
3
Vertical angle to base point
Steps
Key
Display
○
1 Select “Program” from the
[Main Menu] window, then press
[PAGE] switch to second program
list and press [F2] or number key
[6] to enter the Area application.
[PAGE]
+
[F2]
or
[6]
○
2 After finishing the
pre-settings (know more details
at the beginning of chapter 5),
press [F4] to enter the [Base Pt.]
window to start Remote Height
app.
[F4]
○
3 In [Base Pt.] window, press
[F4] to second page of function
keys, then press [F2] (H.T.?)
switch to the situation of prism
high unknown to start measuring.
[F4]
+
[F2]