MTS600 Instruction Manual
81
11.5 Vertical circle index error correction
l
Check
①
Set up and level instrument carefully, then turn the power on. Accurately
collimate a target with a distance of 30m or further in normal telescope
setting(Face1), read the vertical angle L.
②
Turn the telescope in reverse setting(Face 2) and collimate the same target
again, read the vertical angle R.
③
Calculate vertical circle index offset
＝
(L
＋
R
－
360
°
)/2
，
if the offset value
exceeds
±
10
″
, adjustment must be performed.
l
Adjustment
Vertical circle index will affect the accuracy of measurement, therefore adjustment
should be performed with special care.
①
Press [MENU] key on the panel after power on,
enter the main menu, press [F3] in the second page of
the menu to select
“
Instr. Adjustment
”
. The screen of
inputting password appears.
②
Input
“
1234
”
and press [OK], enter <Instr.
Adjustment > menu.
③
Press [F1] to select <V.ang. index offset>.
④
Accurately collimate a target with a distance of
30m or further in Face1, then press [OK].
l
Press [CE] to cancel the last operation and redo it.
⑤
Loosen the horizontal clamp, rotate the top of the
instrument through 180
°
, accurately collimate the
same target in Face 2. If there
’
s no wrong with
operation, the offset value of vertical circle index is
displayed.
Instr.Adjustment
Password
：
OK
Instr.Adjustment
F1-V.ang. index offset
F2-Tile sensor offset
F3-Instrument constant
V.ang(
Z
) 90
°
20
′
32
″
H.ang(
R
) 45
°
23
′
07
″
Collimate in face 1
？
CE
OK
V.ang(
Z
) 90
°
20
′
32
″
H.ang(
R
) 45
°
23
′
07
″
Collimate in face 2
？
CE
OK
V.ang. Index Offset
Offs. 0
°
0
′
23
″
Accept new value?
CE
OK
