Linertec LTS-200 Series, Instruction Manual

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A repair engineer does this adjustment. Please contact the LINERTEC dealer.
11.7 Offset constant
The offset constant rarely changes. It is recommended, however, that checks be done once or
twice a year.
The check of the offset constant can be done on a certified base line. It can also be obtained in
a simple way as described below.
[Checks]
①
Locate points A, B and C at about 50m intervals on even ground.
②
Set up the instrument at point A, and measure the distances between AB and AC.
③
Set up the instrument at point B, and measure the distance BC.
④
Obtain the offset constant (K):
K=AC - (AB+BC)
[Adjustments]
• Contact your local dealer for adjustment of the offset constant when K is not nearly 0.
A B C
Instrument Prism Prism
A B C
Instrument Prism