MTS600 Instruction Manual
⑥Press [OK] to accept the new values for
correction and return to <Instr. Adjustment > menu.
⑦Press [ESC] twice ,return to basic measurement
mode. Follow the steps mentioned above, check vertical circle index error
again.
⑧If the error exceeds the desired range yet, please check if there’s a wrong
with the operation of adjustment. If not, please send the instrument back to
factory for repair.
Tilt compensator zero point error check and adjustment
If tilt angle compensation has been enabled, the tilt compensator zero point error
will adversely affect vertical angle measurement. So it is necessary to check and
adjust the tilt zero point error periodically.
l Check
①Level instrument carefully, then turn the power on, press [ANG] to enter angle
measurement mode, press [F5] to enter the second page, press [TILT],Observe tilt
angle in the X (sighting) direction displayed on the screen.
②Sight the target in Face 1, wait for the display to stabilize, then read the tilt
angle value t1.
③Rotate the top of the instrument through 180°and sight the same target
again(Face 2). Wait for the display to stabilize, then read the tilt angle value t2.
④Calculate the offset value :
offset =(t1+t2)/2
If the offset value falls within the range ±20″, adjustment is not necessary. Or
adjust the value using the following procedure.
l Adjustment
①Press [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.
Instr.Adjustment
F1-V.ang. index offset
F2-Tile sensor offset
F3-Instrument constant
Instr.Adjustment
Password：
OK
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