Horizontal Collimation Error C - Pentax W-1502N Series Instruction Manual

5.6 Horizontal Collimation Error C

If the telescope's sight line isn't perpendicular to the horizontal axis, the
collimation error will appear. The assembling, transportation and operation
will cause this error.
If the collimation error isn't over the permitted range, with the program the
instrument can correct this collimation error.
NOTE: After the program correction this deviation error is also on the
instrument.
1) Check
(1) Set-up the instrument on tripod or adjustment platform and leveling
accurately.
(2) Aim at the cross-hairs of collimator or the obvious target at a distance.
Get the face left angle reading H1 and the face right angle reading Hr.
(3) Calculating the horizontal collimation error C according to C= （ Hl-
Hr±180°）/2,if C<8", no adjustment will be necessary. If C>8", proceed with
the following adjustment.
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 displays, 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.
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