On a Trimble S Series instrument, you must perform the HA VA
Collimation and the Trunnion axis tilt adjustments together. To start the
adjustment wizard, select Instrument / Adjust / Collimation & Trunnion axis
tilt.
Note -
Instrument / Adjust is not available during a survey. End the current survey to
perform an instrument adjustment.
The HA VA collimation, Trunnion axis tilt, and
Autolock collimation instrument adjustments can be performed using Trimble Survey
Controller, or on the Trimble S Series instrument through the Face 2 menu
display. For more information, refer to the documentation for your instrument.
1. Set up the instrument on a stable surface and follow the
prompts to complete the test. Current
adjustment values appear for each test (Horizontal collimation, Vertical
collimation, and Trunnion axis tilt). Press
the keys lightly to avoid bumping the instrument.
2. Aim at the target and take the first measurement.
3. Turn the instrument away and then re-aim.
4. Take the second measurement.
Note - Do not use Autolock during Collimation or Trunnion axis
tilt tests.
Position
the instrument as follows:
1. Collimation - at least 100 m from the target.
2. Collimation - less than 4°30’ (5 gon) from the horizontal
plane.
3. Trunnion axis tilt - at least 13°30’ (15 gon) from the
horizontal plane (for the 5600) or from the VA measured during collimation (for
the Trimble S Series).
4. You must take a minimum of one observation on each face.
5. Final collimation
values must be within tolerance of standard values. If not, the instrument
needs to be adjusted mechanically.
For more information, contact your local Trimble dealer.
This option is available only for
instruments with Autolock, and should be performed after the HA VA Collimation
adjustment has been completed.
1. Set up the instrument on a stable surface and follow the prompts.
Press the keys lightly to avoid bumping
the instrument. Ensure that there are no obstructions between the
instrument and the target, which should be at least 100 m apart.
-The dual axis compensator in the
Trimble S Series instruments does not require initialization every time the
instrument is leveled. However, Trimble recommends that you calibrate the
compensator periodically, especially before you take precise measurements.
1. On a Trimble S Series instrument, calibrate the compensator
through the Face 2 menu display. The instrument handle must be attached and the
Trimble CU must be unattached.
For more information, refer to the documentation for your
instrument.
1. To calibrate the compensator in a 3600 instrument:
Select Instruments / Adjust /
Compensator calibration.
When prompted, turn the
instrument 180° to 0°.
Tap Accept.
Note - This option is not available
for the 5600 because the compensator is calibrated when the instrument is
leveled.