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CO
IN
ID
PM
FS
SC
OC
IO
AR
RC
EG
CA
CT
BC
DF
SD
TS
IX
© Leica
TPS-System 1000-2.3.1en
175
Checking and adjusting
Electronically
In general, the instrument possesses the following
mechanical errors:
- ( l, t )
Index error from the 2-axis compensator
- ( i )
Index error from the vertical encoding circle
- ( c )
Line-of-sight error
- ( a )
Tilting-axis error
- (ATR)
Collimation of the target recognition axis
(TCA versions only)
The above instrument errors can change over time and
with temperature.
They should, therefore, be redetermined in the order
shown below:
- before the first use
- before each precision survey
- after long periods of transport
- after long periods of work
- if the temperature alters by more than 20°C
Before determining the instrument errors, level-up the
instrument using the electronic bubble. The instrument
should be secure and firm, and should be protected
from direct sunlight in order to avoid thermal warming
on one side only.
The determination of the instrument errors can be
started in any telescope face.
Activate the function
in the main menu.