Pentax W-1502N Series Instruction Manual page 91

Please adjust the reticle of telescope and correct the collimation error before
this operation.
(1) Mount the instrument at the tripod or a stable device and level it
accurately, then turn on the instrument.
(2) Aim at the cross-hairs of collimator or the obvious target at a distance, VA
should be about ±10°. Read the face left angle Vl and face right angle Vr.
(3) Calculate the index error according to the formula below:
i = ( Vl+Vr-360°)/2
(4)If I<10〞, no adjustment is necessary , or you have to adjust it .
2) Adjustment by program:
Set-up the instrument on tripod or adjustment platform, and leveling
accurately.
Procedures
1. Power on, run the software "TS810Setup", on the screen tap or keys
until Collimation display, tap it to display collimation error and vertical index
error setting menu.
2. Aim at the cross-hair of collimator at telescope left, tap "Left value" to
read the horizntal and vertical angles.
3. Aim at the cross-hair of coillmator at telescope right, tap "Right value" to
read the horzontal and vertical angles.
4. The software will calculate the new collimation error and vertical index
error automatically.
5. Tap "Enter" to save the new values, or tap "Cancel" to use old values.
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