Sunphotometer 2010

Last modified by levula@helsinki_fi on 2024/02/07 06:31

100409 Sunphotometer was reinstalled after the calibration. JL, TP.

100420 Broken satellite link was replaced. JL HeLa

100429 The photometer was transferred backwards in relation to the robot, which solved the "falling collimator" problem. JL

100506 Sunphotometer was checked. JL

100510 Sunphotometer cables were loosened which semed to solve morning time robot errors. JL

100520 09:15 Sunphotometer and collimator checked. JL

100707 approx 14:00 the #411 control box taken down, does not react any keypresses. Opened the control box:
 internal battery voltage 0VDC, found that one power transistor Q3 had burnt (repaired earlier at FMI). HeLa, LK, SU

100708 09:50...10:05 installed the #390 whole system. The collimator tube o-rings are worn and also the o-ring grooves
 have small dents: a small flat-head screwdriver needed to seat the o-rings while tightening the mounting screw. Maybe
 the collimator was not deep enough earlier. Now there are some robot ans filter wheel errors, needs further checking. HeLa, LK, SU

100813 12:00 Sunphotometer checked, orientation changed a bit (the "go sun" produced a the device look litlle to high, however the "track" was succesful),
 clock adjusted and collimator blowed clean with compressed air. JL.