CASSENS & PLATH BOBBY SCHENK Sextant Handhabung Seite 18

Instructions
Page 3 _______________________________________________________________
Content
Application ........................................................................................................................ 3
Technical Data ................................................................................................................. 3
Design .............................................................................................................................. 4
How a Sextant Works ....................................................................................................... 5
Sextant in the Box ............................................................................................................ 6
Celestial Observations ..................................................................................................... 7
Alternative Methods.......................................................................................................... 8
Finding the Position .......................................................................................................... 8
Memory Foil ...................................................................................................................... 8
Terrestial or Horizontal Angle Observations..................................................................... 9
Range Finding .................................................................................................................. 9
Adjustment of Horizon and Index Mirror ......................................................................... 10
Tilt Error of the Index Mirror ..................................................................................... 11
Tilt Error of the Horizon Mirror ................................................................................. 12
Index Error ............................................................................................................... 12
Index Error Corection with the Red Knob ....................................................................... 13
Changing the Telescope ................................................................................................ 14
Illumination and Replacement of Batteries ..................................................................... 14
Care and Maintenance ................................................................................................... 14
Exchanging the Mirrors .................................................................................................. 14
Sextant Parts .................................................................................................................. 15
First Use
Before the first use check and correct the mirror position.
Mirrors may be deadjusted by shock during transport.
Refer to Chapter "Adjustment of Horizon and Index Mirror"
BOBBY SCHENK Sextant