Brunson 771 - Getting Started with Your Transit; Transit Handling and Care

7 Operation and Adjustment Manual
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Inthischapter,wewilldiscuss
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Notethattheseproductsareprecisioninstrumentsandshouldal‐
waysbehandledwithcare.
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 Donotforceanyofthescrews.Afirm(butnottight)ten‐
siongivesthebestresults.
 Keepyourinstrumentcleananddry.Protectitfromthe
weatherifusedoutdoors.
 Allowyourinstrumentto“soak”foratleast4hoursin
thetemperatureinwhichitwillbeused,sothatshifts
duetothermalchangesareminimized.Ifyouaremov‐
ingthetransitacrossthermaldifferentialsofmorethan
20°F,allowittosoakfor8hours.Theinstrumentshould
beoutofthecaseduringthistimeforbetteraircircula‐
tion.
 Whentakingasighting,or
readingoneoftheseinstru‐
ments,removeyourhands,
andmakesureanyother
pressureisalsoremoved.
Keepyourinstrumentcalibrated.
Make
therecommendedfieldchecks
(seeChapter4)aswellasperforminga
completecalibrationatleastannually.
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Notethatthereisawarningprintedon
thesideofyourtransitwhichsays
“Caution—DoNotPlungeTelescope
FromFlange”.Plungingthetelescope
meanstorotateitintheverticalplane,
asyoumightwhenyouwanttolook
furtherupordown.Specifically,
plungingreferstoreversingthedirec‐
tionofthetelescopebyrotatingit180°
Chapter2‐GettingStartedwithYourTransit
 Howtohandleyourtransit
 Removingitfromthecase
 Usingtheshiftingcenter
 Roughleveling
 Preciseleveling
 TheReticle
 Focusingtheeyepieceand
telescope
 FindingInfinityfocus
 Pointingthetelescope
 Installinglightingaccesso‐
ries
Figure2.1
Handleyourtransitwithcare